BIPOLAR DC POWER SUPPLY

BP4640 / BP4650
Instruction Manual

NF Corporation

DA00061329-003

BIPOLAR DC POWER SUPPLY

BP4640 / BP4650
Instruction Manual Preface Thank you for purchasing the BP4640/BP4650 bipolar DC power supply.
To ensure safe and proper use of this electric equipment, please read first INSTRUCTIONS FOR SAFE
USE on the following pages.
 Caution Symbols Used in This Manual
The following caution symbols are used in this manual. Be sure to observe these caution symbols andtheir contents to ensure the safety of the user and avoid damage to the equipment.
！

WARNING

This symbol indicates information for avoiding danger to human life or bodily injury while handling thisproduct.

！

CAUTION

This symbol indicates information for preventing damage to the product when handling it.

 This manual has the following chapter organization.
If reading this manual for the first time, start from 1. OUTLINE.
1. OUTLINE
Describes various items that must be checked prior to using this product.
2. PREPARATIONS BEFORE USE
Describes various cautions regarding preparations to be made before using this product, ranging
from installation to connection of the power supply.
3. NOMENCLATURE
Describes the names of the various parts of this product.
4. OPERATION
Describes how to use this product, from its basic operation to the use of advanced functions.
5. USB INTERFACE
Describes the commands for controlling this product via the USB interface.
6. TROUBLESHOOTING
Describes error messages and handlings when problems occur.
7. MAINTENANCE
Describes basic operation tests and daily maintenance procedures.
8. SPECIFICATIONS
Lists the specifications (functions and performance) of this product.
9. INITIAL SETTING LIST
Lists the initial settings.

 Scope of contents
The description of this manual applies to products with firmware version 3.00 and above.
For details on checking the firmware version, see Chapter 7.4.

iBP4640/BP4650

 Safety Precautions To ensure safe use, be sure to observe the following warnings and cautions.
NF Corporation shall not be held liable for damages that arise from a failure to observe these warnings andcautions.
This product is a Class 1 product (with protective conductor terminal) that conforms to the JIS and IEC
insulation standards.

 Be sure to observe the contents of this instruction manual.
This instruction manual contains information for the safe operation and use of this product.
Be sure to read this information first before using this product.
All the warnings in the instruction manual must be heeded to prevent hazards that may cause major
accidents.

 Be sure to ground the product.
Ensure to connect the protective conductor terminal of the power input terminal of this product to an
earth ground so that ground resistance is 100  or less. If the product is not certainly grounded, anelectric shock might occur.
Because of large leakage current, to prevent electric shock, ensure that the protective grounding
conductor is connected before you connect a cable to the power input terminals L1, L2, L3, and N.
For grounding, use an equivalent cable whose diameter is same or greater.

 Check the power supply voltage.
This product operates on the power supply voltage indicated in Grounding and Power Supply
Connection in this instruction manual.
Prior to connecting the power supply, check that the voltage of the power supply matches the rated
power supply of the product.
The power input voltage is noted as line voltage in three-phase four-wire input, unless otherwise noted.

 In case of suspected anomaly
If this product emits smoke, an abnormal smell, or abnormal noise, immediately power it off and stopusing it.
If such an anomaly occurs, do not use this product until it has been repaired, and immediately report the
problem to the location of purchase (either NF Corporation or your distributor).

 Do not use this product when gas is present.
An explosion or other such hazard may result.

 Do not remove the cover.
This product contains high-voltage parts. Absolutely never remove its cover.
Even when the inside of this product needs to be inspected, do not touch the inside. All such inspections
are to be performed by service technicians designated by NF Corporation.

 Do not modify this product.
Absolutely never modify this product, as this may cause new hazards and may disqualify this productfrom repair in case of failure.

 This product weights over 165 kg.
Do not carry it alone, or you may suffer physical injury.

 Do not expose this product to water.
When this product is used in wet condition, it may cause an electric shock and a fire. If this product is
exposed to water, cut the power at the distribution board immediately, and contact NF Corporation or
one of our representatives.

 If lightning occurs, power off this product and cut the power at the distribution board.
A lightning may cause an electric shock, a fire and a failure.

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BP4640/BP4650

 Safety-related symbols
The general definitions of the safety-related symbols used on this product and in the instruction manualare provided below.
！

Instruction Manual Reference SymbolThis symbol is displayed to alert the user to potential danger and refer him/herto the instruction manual.
Electric Shock Danger SymbolThis symbol indicates locations that present a risk of electric shock under
specific conditions.
Protective Ground-Terminal SymbolThis symbol identifies a pin that must be grounded to avoid electric shock.
Before operating the device, be sure to safely connect the protective conductor
terminal of the power input terminal of this product to an earth ground so thatground resistance is 100  or less.

！

WARNING

Warning SymbolThis symbol indicates information for avoiding danger to human life or bodily
injury while handling this product.

！

CAUTION

Caution SymbolThis symbol indicates information for preventing damage to the product whenhandling it.

 Other symbols
This symbol indicates that the external conductor of the connector is connectedto the case.

 Waste disposal
To help ensure environmental protection, please note the following precautions regarding disposal ofthis product.
<1> This product contains a lithium battery.
<2> Use a professional industrial waste contractor to dispose of this product.

 Other considerations
All the accessories, peripherals, and options of this producdt are exclusively for this product.These
products are not to be installed nor used for any other purposes besides their intended usage.
To prevent electric shock and failure, absolutely never insert foreign objects or allow liquids inside thisproduct.
To prevent electric shock and failure, make sure that the metal parts of connection cables are hidden.

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BP4640/BP4650

Contents
Page

1.

OVERVIEW .................................................................................................. 1-1
1.1
1.2
1.3

2.

General ....................................................................................................................... 1-2
Features ...................................................................................................................... 1-2
Principle of Operation ............................................................................................... 1-4

PREPARATIONS BEFORE USE .................................................................. 2-1
2.1
2.2
2.3

Before Using this product ......................................................................................... 2-2
Installation Environment ........................................................................................... 2-3
Grounding and Power Supply Connection .............................................................. 2-5
2.3.1 Grounding ............................................................................................................................... 2-5
2.3.2 Power supply .......................................................................................................................... 2-5

2.4

Connection to I/O terminals ...................................................................................... 2-7
2.4.1 Connection to power supply input terminals ....................................................................... 2-7
2.4.2 Connection to output terminals ............................................................................................ 2-9
2.4.3 Connection to USB connector............................................................................................. 2-11
2.4.4 Connection to external control I/O connector .................................................................... 2-12
2.4.5 Connection to external signal input pin ............................................................................. 2-14
2.4.6 Connection to monitor output pin ....................................................................................... 2-15

2.5
2.6

3.

Power on/off and Operation Check ........................................................................ 2-16
Radio Law ................................................................................................................. 2-17

NOMENCLATURE ........................................................................................ 3-1
3.1

Nomenclature ............................................................................................................. 3-2
3.1.1 Operation panel ...................................................................................................................... 3-2
3.1.2 Front panel ............................................................................................................................. 3-4
3.1.3 Rear panel............................................................................................................................... 3-6

3.2

4.

Tilting LCD Screen ..................................................................................................... 3-7

OPERATION ................................................................................................. 4-1
4.1

LCD Screen ................................................................................................................ 4-3
4.1.1 Status icons ............................................................................................................................ 4-4
4.1.2 Warning and error display ..................................................................................................... 4-5
4.1.3 Sequence display ................................................................................................................... 4-5

4.2

Basic Operation ......................................................................................................... 4-6
4.2.1 Menus ..................................................................................................................................... 4-6
4.2.2 Menu tree navigation method ................................................................................................ 4-9
4.2.3 Numerical input operation ................................................................................................... 4-10
4.2.4 Numerical input operation requiring confirmation (during USB ID setting) .................... 4-10
4.2.5 Selective input operation requiring confirmation .............................................................. 4-10
4.2.6 Execution input .................................................................................................................... 4-11
4.2.7 Shortcut keys ....................................................................................................................... 4-11

4.3

Basic Functions ....................................................................................................... 4-12
4.3.1 Setting of operation mode ................................................................................................... 4-13

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Contents
4.3.2 Output on/off ........................................................................................................................ 4-15
4.3.3 Setting of DC voltage and DC current ................................................................................ 4-17
4.3.4 Setting of superimposed AC voltage and superimposed AC current ............................... 4-18
4.3.5 Setting of frequency ............................................................................................................ 4-21
4.3.6 Setting of waveform ............................................................................................................. 4-22

4.4

Setting of limiters .................................................................................................... 4-24
4.4.1 Shifting the output voltage range ....................................................................................... 4-26
4.4.2 Output voltage limiters ........................................................................................................ 4-28
4.4.3 Output current limiters ........................................................................................................ 4-28

4.5

Sequence Operation ................................................................................................ 4-29
4.5.1 Sequence operation specifications .................................................................................... 4-29
4.5.2 Setting of sequence ............................................................................................................. 4-36
4.5.3 Sequence programming ...................................................................................................... 4-38
4.5.4 Sequence operation control ................................................................................................ 4-43
4.5.5 Sequence memory clear ...................................................................................................... 4-45
4.5.6 Sequence operation setting example ................................................................................. 4-46
4.5.7 Sequence operation execution............................................................................................ 4-50

4.6
4.7
4.8

Control via External Control I/O Connector .......................................................... 4-54
Memory Function ..................................................................................................... 4-55
Remote Control ........................................................................................................ 4-58
4.8.1 Switching USB interface ...................................................................................................... 4-59
4.8.2 USB ID ................................................................................................................................... 4-60
4.8.2.1 USBTMC ......................................................................................................................... 4-60
4.8.2.2 USB 488 ......................................................................................................................... 4-62
4.8.3 Switch to local mode ........................................................................................................... 4-63

4.9

System Menu ............................................................................................................ 4-66
4.9.1 Keylock ................................................................................................................................. 4-68
4.9.2 Beep sound .......................................................................................................................... 4-69
4.9.3 LCD contrast adjustment ..................................................................................................... 4-70
4.9.4 Setting of LCD display color ............................................................................................... 4-71
4.9.5 Setting of frequency and time units.................................................................................... 4-72
4.9.6 Setting of operation of output and response calibrator at power-on ............................... 4-73
4.9.7 Setting of external control input enable/disable ................................................................ 4-74
4.9.8 Reset function ...................................................................................................................... 4-75
4.9.9 System information .............................................................................................................. 4-75

4.10

Response Calibration .............................................................................................. 4-76
4.10.1 Outline ................................................................................................................................ 4-76
4.10.2 Fixed characteristics ......................................................................................................... 4-77
4.10.3 Adjustment characteristics ............................................................................................... 4-78
4.10.4 Adjustment example .......................................................................................................... 4-81

4.11
4.12
4.13

5.

External Signal Input ............................................................................................... 4-82
Voltage and Current Monitor ................................................................................... 4-83
Measurement Function ............................................................................................ 4-84

USB INTERFACE ......................................................................................... 5-1
5.1
5.2

Preparations Before Usage ....................................................................................... 5-2
Program Message List............................................................................................... 5-3v

BP4640/BP4650

Contents
5.3

Explanation of Each Program Message ................................................................... 5-9
5.3.1 Basic settings ......................................................................................................................... 5-9
5.3.2 Limiter ................................................................................................................................... 5-11
5.3.3 Sequence Related ................................................................................................................ 5-12
5.3.4 Measurement related ........................................................................................................... 5-16
5.3.5 Arbitrary waveform memory ................................................................................................ 5-16
5.3.6 Store/recall memory ............................................................................................................. 5-17
5.3.7 Status reporting ................................................................................................................... 5-18
5.3.8 Overlap commands .............................................................................................................. 5-20
5.3.9 Other ..................................................................................................................................... 5-21

5.4

Status Configuration ............................................................................................... 5-23
5.4.1 Status byte............................................................................................................................ 5-23
5.4.2 Standard event statuses ...................................................................................................... 5-24
5.4.3 Message queue .................................................................................................................... 5-24
5.4.4 Operation statuses ............................................................................................................... 5-25
5.4.5 Warning statuses ................................................................................................................. 5-26
5.4.6 Overload statuses ................................................................................................................ 5-27

5.5
5.6

6.

Response to Interface Messages ........................................................................... 5-28
Programming Cautions ........................................................................................... 5-28

TROUBLESHOOTING.................................................................................. 6-1
6.1

Error Messages .......................................................................................................... 6-2
6.1.1 Error at power-on ................................................................................................................... 6-2
6.1.2 Protective function related errors ......................................................................................... 6-3
6.1.3 Errors during operation ......................................................................................................... 6-5
6.1.4 Warning display ..................................................................................................................... 6-6

6.2

Protective Functions ................................................................................................. 6-7
6.2.1 Overload ................................................................................................................................. 6-8
6.2.2 Over-limiter ............................................................................................................................. 6-8

6.3

7.

MAINTENANCE ........................................................................................... 7-1
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8

8.

When Suspecting a Fault .......................................................................................... 6-9

Introduction ................................................................................................................ 7-2
Daily Maintenance ..................................................................................................... 7-2
Storage, Repacking, and Transportation ................................................................. 7-3
Version Number Verification Method ....................................................................... 7-4
Cleaning the Air Filters ............................................................................................. 7-6
Backup Battery .......................................................................................................... 7-7
Operation Inspection ................................................................................................. 7-8
Performance Test ..................................................................................................... 7-10

SPECIFICATIONS ........................................................................................ 8-1
8.1
8.2
8.3
8.4

Specification Conditions ........................................................................................... 8-2
Output ......................................................................................................................... 8-3
Output Limiters .......................................................................................................... 8-5Signal Sources ........................................................................................................... 8-6
8.4.1 Internal signal source ............................................................................................................ 8-6

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Contents
8.4.2 External signal input .............................................................................................................. 8-7

8.5
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
8.14
8.15
8.16
8.17
8.18
8.19
8.20
8.21

9.

Monitor Output ........................................................................................................... 8-8
Measurement Functions ............................................................................................ 8-9
Sequence Function .................................................................................................. 8-10
Arbitrary Waveform Memory ................................................................................... 8-10
Setting Memory ........................................................................................................ 8-11
Protective Functions ............................................................................................... 8-11
General ..................................................................................................................... 8-11
External Control I/O ................................................................................................. 8-12
USB Interface ........................................................................................................... 8-12
Power Input .............................................................................................................. 8-13
Withstand Voltage, Insulation Resistance ............................................................. 8-13
Ambient Temperature Range and Ambient Humidity Range ............................... 8-13
External Dimensions and Weight ........................................................................... 8-14
EMC ........................................................................................................................... 8-14
Option ....................................................................................................................... 8-15
Output Voltage and Output Current Supply Ranges............................................. 8-15
Drawing of External Dimensions ............................................................................ 8-20

INITIAL SETTING LIST ................................................................................ 9-1
9.1

Initial Setting List ....................................................................................................... 9-2

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BP4640/BP4650

Figures
Page
Figure 1-1.

Block Diagram ........................................................................................................................ 1-4

Figure 2-1.

Ambient Temperature and Ambient Humidity Ranges ........................................................ 2-3

Figure 2-2.

How to Use the Adjuster Foot ............................................................................................... 2-4

Figure 2-3.

Power Supply Input Terminals .............................................................................................. 2-7

Figure 2-4.

Output Terminals ................................................................................................................... 2-9

Figure 2-5.

Connection to Grounded Load or Measuring Instrument ................................................. 2-10

Figure 2-6.

USB Connector .................................................................................................................... 2-11

Figure 2-7.

External Control I/O Connector ........................................................................................... 2-12

Figure 2-8.

EXT SIGNAL IN Terminal ..................................................................................................... 2-14

Figure 2-9.

MONITOR OUT Terminal ...................................................................................................... 2-15

Figure 3-1.

Lift Operation Panel ............................................................................................................... 3-7

Figure 3-2.

Operation Panel Lifting Method ............................................................................................ 3-7

Figure 3-3.

Operation Panel Return Method ........................................................................................... 3-8

Figure 4-1.

LCD Screen (Normal Display) ............................................................................................... 4-3

Figure 4-2.

LCD Screen (Warning Display) .............................................................................................. 4-3

Figure 4-3.

Menu Tree ............................................................................................................................... 4-6

Figure 4-4.

Modify Box ........................................................................................................................... 4-10

Figure 4-5.

Select Box ............................................................................................................................ 4-10

Figure 4-6.

Exe Box ................................................................................................................................ 4-11

Figure 4-7.

LCD Screen .......................................................................................................................... 4-12

Figure 4-8.

Block Diagram of Signal Source Block .............................................................................. 4-14

Figure 4-9.

Frequency Characteristics for Resistance Load in CV and CC Modes ............................ 4-20

Figure 4-10.

DC Output Range (When Positive/Negative Voltage Limiter Setting Difference Is Fixed to
124 V)................................................................................................................................... 4-26

Figure 4-11.

DC Output Range (When Negative Voltage Limiter Setting Is Fixed to 7 V) ................. 4-27

Figure 4-12.

Basic Step Transition Example ......................................................................................... 4-31

Figure 4-13.

Sequence Status Transition Block Diagram..................................................................... 4-32

Figure 4-14.

Example of Sequence Operation When <Start> Is Executed from Hold Status ............. 4-33

Figure 4-15.

Example of Sequence Operation During <Branch> ......................................................... 4-33

Figure 4-16.

Loop Specification Method and Step Transition Example .............................................. 4-34

Figure 4-17.

Step Sync Output Example ............................................................................................... 4-35

Figure 4-18.

Sequence Operation upon Phase 0 deg Wait Occurrence .............................................. 4-35

Figure 4-19.

Sequence Shortcut Keys ................................................................................................... 4-44

Figure 4-20.

Sequence Transition Example (in CV-INT Mode) ............................................................. 4-46

Figure 4-21.

LCD Screen When Sequence Is Running ......................................................................... 4-53

Figure 4-22.

Memory Contents Display Example .................................................................................. 4-55

Figure 4-23.

EXT SIGNAL IN Terminal ................................................................................................... 4-82

Figure 4-24.

MONITOR OUT Terminal .................................................................................................... 4-83

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BP4640/BP4650

Figures
Figure 4-25.

Measurement Value Display Example ............................................................................... 4-84

Figure 6-1.

Protective Function Related Error Display Examples ......................................................... 6-4

Figure 6-2.

Examples of Error Display During Operation ...................................................................... 6-5

Figure 6-3.

Warning Display Example ..................................................................................................... 6-6

Figure 7-1.

SYSTEM INFORMATION Screen ............................................................................................ 7-5

Figure 7-2.

Air Filter Cleaning Procedure ............................................................................................... 7-6

Figure 8-1.

Ambient Temperature and Humidity Ranges ..................................................................... 8-14

Figure 8-2.

DC Output Range (When Positive/Negative Voltage Limiter Setting

Difference Is Fixed

to 124 V) .............................................................................................................................. 8-16
Figure 8-3.

DC Output Range (When Positive/Negative Voltage Limiter Settings Are

Symmetric)............................................................................................................................................. 8-16
Figure 8-4.

DC Output Range (When Negative Voltage Limiter Setting Is Fixed to 7 V) ................... 8-17

Figure 8-5.

DC Output Voltage (When Positive Voltage Limiter Setting Is Fixed to +7 V) .................. 8-17

Figure 8-6.

AC Output Range (When Positive/Negative Voltage Limiter Setting

Difference Is Fixed

to 124 V) .............................................................................................................................. 8-18
Figure 8-7.

AC Output Range (When Positive/Negative Voltage Limiter Settings

Are Symmetrical)............................................................................................................................................. 8-18
Figure 8-8.

AC Output Range (When Negative Voltage Limiter Setting Is Fixed to 7 V) ................... 8-19

Figure 8-9.

AC Output Range (When Positive Voltage Limiter Setting Is Fixed to +7 V) .................... 8-19

Figure 8-10.

Drawing of External Dimension ........................................................................................ 8-20

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BP4640/BP4650

Tables
Page
Table 2-1.

Configuration List .................................................................................................................... 2-2

Table 2-2.

Maximum power and current consumption ........................................................................... 2-5

Table 2-3.

External Control I/O Connector Pin List ............................................................................... 2-13

Table 4-1.

Status Icon List ........................................................................................................................ 4-4

Table 4-2.

Sequence Display .................................................................................................................... 4-5

Table 4-3.

SET Menu Item List .................................................................................................................. 4-7

Table 4-4.

MISC Menu Item List ................................................................................................................ 4-7

Table 4-5.

SEQUENCE Menu Item List ..................................................................................................... 4-8

Table 4-6.

MEMORY Menu Item List ......................................................................................................... 4-8

Table 4-7.

REMOTE Menu Item List.......................................................................................................... 4-9

Table 4-8.

SYSTEM Menu Item List .......................................................................................................... 4-9

Table 4-9.

Shortcut Key List ................................................................................................................... 4-11

Table 4-10.

Operation Mode List ............................................................................................................ 4-13

Table 4-11.

Superimposed AC Voltage Waveform and Superimposed AC Current Waveform List ... 4-22

Table 4-12.

Limiter Setting Ranges ........................................................................................................ 4-24

Table 4-13.

Step Execution Parameters ................................................................................................. 4-30

Table 4-14.

Step Transition Parameters................................................................................................. 4-31

Table 4-15.

Sequence Statuses .............................................................................................................. 4-32

Table 4-16.

Sequence Control ................................................................................................................ 4-33

Table 4-17.

PROGRAM Screen Item List ................................................................................................ 4-39

Table 4-18.

CONTROL Select Box Item List .......................................................................................... 4-43

Table 4-19.

PROGRAM Setting List ........................................................................................................ 4-46

Table 4-20.

Functions of External Control I/O Connector .................................................................... 4-54

Table 4-21.

MEMORY Screen Menu Item List ........................................................................................ 4-55

Table 4-22.

Operation Mode List ............................................................................................................ 4-58

Table 4-23.

System Menu Item List ........................................................................................................ 4-66

Table 5-1.

Basic Settings .......................................................................................................................... 5-4

Table 5-2.

Limiters .................................................................................................................................... 5-4

Table 5-3.

Sequence Related .................................................................................................................... 5-5

Table 5-4.

Measurement Related .............................................................................................................. 5-6

Table 5-5.

Arbitrary Waveform Memory ................................................................................................... 5-7

Table 5-6.

Memory ..................................................................................................................................... 5-7

Table 5-7.

Status Reporting ...................................................................................................................... 5-7

Table 5-8.

Overlap Command ................................................................................................................... 5-8

Table 5-9.

Other ......................................................................................................................................... 5-8

Table 5-10.

DC Current And Superimposed AC Current Setting Ranges ............................................ 5-13

Table 5-11. Interface Messages ................................................................................................................ 5-28
Table 6-1.

Self-Diagnosis Errors .............................................................................................................. 6-2

xBP4640/BP4650

Tables
Table 6-2.

Protective Function Related Errors ........................................................................................ 6-3

Table 6-3.

Errors during Operation .......................................................................................................... 6-5

Table 6-4.

Warning Display ....................................................................................................................... 6-6

Table 6-5.

Protective Functions ............................................................................................................... 6-7

Table 9-1.

Setting Memory ........................................................................................................................ 9-2

Table 9-2.

Store/Recall Memory (All Memories) ...................................................................................... 9-3

Table 9-3.

Arbitrary Waveform Memory ................................................................................................... 9-3

Table 9-4.

Sequence Memory (All Steps) ................................................................................................. 9-4

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1. OVERVIEW
1.1
1.2
1.3

General ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 1-2
Features ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 1-2
Principle of Operation ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 1-4

1-1

BP4640/BP4650

1.1

General1.1 General
The BP4640/BP4650 is a bipolar power supply that combines a high-speed power amplifier capable ofbipolar output of an output voltage and current, and an internal signal source (DC and AC). It can beused as a high-speed bipolar amplifier that uses an external signal as input.
Since this product performs bipolar output, the output voltage and current supply ranges cover all four
quadrants. Whereas only positive current (source current) can be supplied in the case of a general DC
power supply, this product is capable of supplying both positive and negative (source and sink) current.
Both CV and CC output characteristics are supported, and the rated output voltage and current are 60
V and 40 A to 50 A, respectively. The output voltage expansion function allows the output of a
voltage of up to 120 Vp-p max. in the range of 115 V to +115 V.
This product has a response calibration function that allows the user to adjust the response
characteristics of the amplifier according to the actual load that is used. As a result, output waveform
distortion can be improved for a wide range of load conditions, including resistance load, capacitive
load and inductive load. Using this function, it is also possible to raise the frequency band for the
resistance load.
The functions (except response calibration adjustment) of this product can be remotely controlled froman external computer via the USB interface.
The consumption current can be minimized by using the input power factor control function.

1.2 Features CV/CC output characteristics
The output characteristics can be selected from between CV (constant voltage) and CC (constantcurrent).
CV characteristics: The voltage is supplied to the load proportionally to the input signal.
CC characteristics: The current is supplied to the load proportionally to the input signal.

 Various signal sources
When using an internal signal source, it is possible to output the AC component (sine wave, squarewave, arbitrary wave) on top of the DC component.
When using an external signal input, it is possible to add the external signal and internal signal
sources.

 Power input
Either three-phase three-wire input (3P3W) or three-phase four-wire input (3P4W) can be chosenwhen ordering.

1-2

BP4640/BP4650

1.2

Features Sequence function
When using an internal signal source, the output parameters (output voltage, current, output
frequency) can be sequentially changed or swept, and by programming output changes beforehand,
outputs with specific patterns can be supplied.

 Vo limiter, Io limiter function
The maximum values of the output voltage (Vo) and output current (Io) can be independently set foreach polarity. The output voltage and current are limited to these values.

 Output voltage range expansion function
The output voltage amplitude range can be set to symmetric or asymmetric with regard to thepolarity. Using the Vo limiter function, the output voltage range can be set to a maximum of 120
Vp-p including 0 V within the range of 115 V to +115 V. For example, the output voltage range canbe set to the ranges of 60 V to +60 V, 5 V to +115V, or 115 V to +5 V. Since the suppliable
output current range changes according to the output voltage range setting, the optimum setting
range can be selected from the required voltage and current.

 Response calibration function
The amplifier response characteristics can be selected between fixed characteristics and user
adjusted characteristics. Fixed characteristics are characteristics that emphasize both broadfrequency band characteristics and load stability (during CV, DC to 35 kHz, 3 dB, during CC, DC
to 8 kHz, 3 dB). In the case of user adjusted characteristics, the response characteristics actually
adjusted by the user according to the load conditions can be used. Adjustments of the output voltage
and current waveform are performed by moving three adjustment knobs for the time constant,voltage feedback amount, and current feedback amount, while watching an oscilloscope.

 Output voltage and output current signal monitor output
The monitor ratio for the voltage is 1/100th of the output voltage, and the monitor ratio for thecurrent is different for models, both in phase.

 Measuring function
This function is used to measure and display the output voltage and current (DC value and P-P value
for each).

 Output on/off function
During output on/off switching, the output level (output voltage during CV, output current duringCC) is lowered to 0 and then output relay opening/closing is performed to minimize contact arc.

 USB interface provided as standard
External control can be performed from a PC, etc., via the USB interface.

 PFC (Power Factor Control) function
The consumption current can be minimized with the PFC (input power factor control) function.

1-3

BP4640/BP4650

1.3

Principle of Operation

1.3 Principle of Operation
Figure 1-1 shows a block diagram of this product.
<1>

3

LINE
or

3N

POWER

MAIN
DCPS

LINE
LINE
FLT

+VDD
for
POWER
AMP

PFC
AC/DC

-VDD
SUB
DCPS

for
each
BLOCK

isolation

<3>
<2>

Vo
MONITOR OUT

EXT SIGNAL IN

Io
EXT
+VDD
+
INT

INT DCPROTECTOR

Hi
Lo

+
T
V
I
RESPONSE CALINT OSC(Sin,Squ,Arb)

<4>

AMP
CONTROLOUTPUT

-VDD
POWER
AMP

CONTROLPANEL

SYSTEMCONTROL

CONTROL
USB

Figure 1-1. Block Diagram

1-4

BP4640/BP4650

1.3

Principle of Operation

This product is composed of the four major blocks.
<1> DC power supply block
The DC power supply block has a variable DC voltage function that works in conjunction withthe power factor improvement function and voltage limiter value. Various control power
supplies and positive/negative DC power supplies for the amplifier block can be created while
improving the power factor for the power supply input. The output voltage range shift function
Refer to “4.4.1 Shifting the output
is enabled by the variable DC voltage function. (voltage range”.)<2> Signal sources
This is an internal signal source that enables the sequence function and DC+AC output. An
external input and internal signal can be used added together.
<3> Amplifier block
The amplifier block has a response calibration function and a protection circuit function. It
outputs signals from an internal signal source or external signal source after amplifying them.
Two types can be selected from among response characteristics, fixed characteristics, and user
adjusted characteristics (response calibration function). If user adjusted characteristics is
selected, the response characteristics can be adjusted according to the load conditions. (Refer to “4.10 Response Calibration”.)<4> System control block
This block is in charge of the user interface, etc.

1-5BP4640/BP4650

2. PREPARATIONS BEFORE USE
2.1 Before Using this product ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-2
2.2 Installation Environment ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-3
2.3 Grounding and Power Supply Connection ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-5
2.3.1 Grounding ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-5
2.3.2 Power supply ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-5
2.4 Connection to I/O terminals ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-7
2.4.1 Connection to power supply input terminals ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-7
2.4.2 Connection to output terminals ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-9
2.4.3 Connection to USB connector ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-11
2.4.4 Connection to external control I/O connector ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-12
2.4.5 Connection to external signal input pin ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-14
2.4.6 Connection to monitor output pin ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-15
2.5 Power on/off and Operation Check ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-16
2.6 Radio Law ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 2-17

2-1

BP4640/BP4650

2.1

Before Using this product2.1 Before Using this product
Before setting up and using this product, make sure that it has not suffered damage during transportationand that all the accessories and the main unit are included. If anything is missing, contact the NF
distributor from which the product was purchased.

 Safety check
Before using this product, read the INSTRUCTIONS FOR SAFE USE at the beginning of this
instruction manual and perform a safety check.
Also, before connecting this product to a power supply, read 2.2 Installation Environment andthoroughly ensure that the installation environment is safe.

 Appearance and accessories check
First, check that this product has not been damaged during transportation. Before installing thisproduct, check the product configuration, which is listed in Table 2-1 Configuration List.
Table 2-1. Configuration List
Item

Q’ty

Main unit

1

Instruction Manual (this document)

1

CD-ROM
Contents: Control Software for BP Series, LabVIEW Driver, Control
Software for BP Series Instruction Manual

1

Ferrite core (for USB cable)

１

When repacking the product for shipping, place it in a box of sufficient strength and size to safely
accommodate the weight and size of the product, making sure that the product is well protected.
！

WARNING This product contains high-voltage parts. Absolutely never remove its cover.
 All internal inspections of this product are to be performed only by service technicians well trained inhazard control.

2-2BP4640/BP4650

2.2

Installation Environment

2.2 Installation Environment
Observe the following points to ensure safe use of this product and maintain its reliability.
To prevent this product from falling over, set it on a floor that is flat, free of vibrations, andsufficiently strong to withstand the weight of this product (97 kg per unit).
Make sure that the ambient temperature and ambient humidity fall within the ranges indicated in
the table below.
Performance
Guarantee
Storage
Conditions

5 to 85 %RH+5 to +35 C

Absolute humidity of 1 to 25 g/m3, with no condensation.
5 to 95 %RH

10 to +50 C

Absolute humidity of 1 to 29 g/m3, with no condensation.

Setting this product in a location with remarkably high humidity will lower its reliability. Use in
an environment with 25 C and 50 %RH is recommended.
Figure 2-1 shows the ambient temperature and the ambient humidity ranges.
%RH
90
80

Storage

Performance

70
60
50
40
30
20
10
0
10

0

10

20

30

40

50C

Figure 2-1. Ambient Temperature and Ambient Humidity Ranges
 Use the product indoors, at altitude up to 2000 m.
 Do not use this product in an environment that includes strong radio frequency electromagnetic
fields (EMFs), because output current gauge indications may become temporarily incorrect or
output may be cut off due to an incorrect overload reading.
Place this product so that its air intake (front) and air exhaust (rear) vents are at a distance of
50 cm or more from the nearest walls to ensure that the air circulation is not impeded and thatforced air cooling of the product functions fully.

2-3

BP4640/BP4650

2.2

Installation Environment

Absolutely never place this product in the following locations.
Outdoors
Location exposed to direct sunlight
Narrow location with poor air circulation
High humidity location where condensation occurs easily
Location with a large amount of dust
Location with corrosive, explosive, or flammable gas
Location where the product may be exposed to flames or water
This product may cause interference if used in residential areas. Such use must be avoided unlessthe user takes special measures to reduce electromagnetic emissions to prevent interference to thereception of radio and television broadcasts. The operation panel of this product includes a liquid crystal display. Be careful not to damage thisdisplay with a sharp or high-temperature object.
If the panel or case of this product becomes dirty, wipe it with a soft cloth. If the case of resistant
stain, use a cloth that has been moistened with a neutral detergent and then thoroughly wrung.
Wiping this product using an organic solvent such as thinner or benzene or a pre-moistened wipe
may cause degradation in material quality, clouding, or flaking off of the paint, and must therefore
be avoided.
Cautions when carrying this productThis product is heavy. Attempting to carry it by oneself may cause back injury and other types of
injuries.
 Casters are provided for manually moving this product unit on a flat surface. Keep the speed whenmoving at walking speed or slower to prevent heat generation.
To prevent shock or vibration from being applied to the casters, do not drop the unit or use it on asurface that is uneven or has projections, and avoid bumping over, for example, the gap between
the floor and an elevator.
Promptly replace damaged casters.
Do not install this product on a sloped surface. The Adjuster Foot is only for temporary fixing,
and cannot support the unit's own weight. You also must not lean on this product or use it as asupport. How to use the Adjuster Foot is shown in Figure 2-2.

Up

Down

The Adjuster Foot can be moved up by turning it to left
(counterclockwise) as viewed from above, and moved downby turning it to right (clockwise). Move the Adjuster Foot downby using an open-end wrench (24 mm width).

Figure 2-2. How to Use the Adjuster Foot
Do not mount the unit or put any weight on it, such as by putting an object on it.

！ CAUTION If this product is exposed to sudden shifts in ambient temperature and/or humidity duringtransportation in the winter, internal condensation may occur. In such a case, allow the condensation
to clear before connecting this product to a power supply.

2-4

BP4640/BP4650

2.3

Grounding and Power Supply Connection

2.3 Grounding and Power Supply Connection
2.3.1 Grounding！

WARNING Ensure to connect the protective conductor terminal of the power input terminal of this product to an
earth ground so that ground resistance is 100 or less. If the product is not certainly grounded, anelectric shock might occur.
 Because of large leakage current, to prevent electric shock, ensure that the protective grounding
conductor is connected before you connect a cable to the power input terminals L1, L2, L3, and N.
 For grounding, use an equivalent cable whose diameter is same or greater.

2.3.2 Power supply！

CAUTION Before connecting this product to a power supply, make sure that the voltage of the power supply towhich the unit is connected complies with the rated power supply voltage of this product.

 The power supply conditions of this product are as follows.
Voltage:Power input: three-phase three-wire input (3P3W)
200 V to 230 V 10 %, with limited to 250 V or lower
Power input: three-phase four-wire input (3P4W)
380 V (phase voltage 220 V) 15 %,with limited to 433 V (phase voltage: 250 V) or lower
Frequency: 50 Hz/60 Hz 2 Hz
 Select a cable which has an appropriate diameter in consideration of the safety standards andconsumption current. The current of each phase is unbalanced. Use a protective grounding
conductor of which diameter is the same or greater than the power input cable.

Model
BP4640BP4650

Table 2-2. Maximum power and current consumption
Maximum current consumption
Maximum power
Power input
Power input
consumption
3P3W
3P4W
4.8 kVA
19 A
15 A
6 kVA
24 A
15 A

 Be careful when fastening with screws and when routing cords to prevent the power supply cordfrom becoming disconnected or loose.

2-5

BP4640/BP4650

2.3

！

Grounding and Power Supply Connection

WARNING This product contains high-voltage parts. Absolutely never remove its cover.
 All internal inspections of this product are to be performed only by service technicians well trained inhazard control.

2-6BP4640/BP4650

2.4

Connection to I/O terminals

2.4 Connection to I/O terminals
2.4.1 Connection to power supply input terminals
Connect the cable from the distribution board to the power supply input terminals on the rear panel.
For safety, be sure to turn off the circuit breaker switch on the power panel before laying cables.
L1, L2, L3, N, andare shown next to the power input terminals of this product. (If the three-phase
three-wire input is chosen, this product does not have the N terminal.) Connect

to the protective

grounding.

Power supply
input terminals

Figure 2-3. Power Supply Input Terminals！

WARNING The power supply for this product must be taken from the distribution board.
 Be sure to switch off the breaker or the switch at the distribution board before connecting this productto the distribution board. Otherwise, an electric shock might occur.
 Route the wire so that the distance between this product and the distribution board breaker or switch
is 3 m or less. If the distance with the distribution board exceeds 3 m, install another breaker orswitch within 3 m from this product to connect. Use a breaker complying with IEC 60947-2 or aswitch complying with IEC 60947-3 which can disconnect all L1, L2, L3, and N (Protective
grounding must not be disconnected). Mark the breaker or the switch with a sign indicating that it is a
disconnecting device of power input for this product.
It is requirements according to IEC 61010-1.

2-7

BP4640/BP4650

2.4

Connection to I/O terminals

 Power source connection procedure
Check the current capacity of the distribution board before wiring. The wiring must be performed by aprofessional engineer.
1.

Remove the resin-molded power input terminal cover and the power input cable holder.

2.

Connect the power input cable to the power input terminal of this product. Be sure to tighten thescrews firmly.

3.

Attach the resin-molded power input terminal cover and the power input cable holder. Direct thefolded part of the resin-molded power input terminal cover to the upper side of the product.

4.

Ensure that the power switch of this product is turned off, and then connect the power input cableto the distribution board.

CAUTION Be sure to check phases L1, L2, L3, and N are correctly connected between this product and the
distribution board.
 If this product whose power input is three-phase four-wire input (3P4W) is used without connecting
N, it may be damaged. Be sure to connect all power cables.

Distribution board

L1

L2

L3

Distribution board

L1(Protective grounding)

L3

N(Protective grounding)Power input 3P3W！

L2Power input 3P4W

WARNING Do not use this product when the resin-molded terminal cover is removed. Otherwise, an electric
shock might occur.

2-8

BP4640/BP4650

2.4

Connection to I/O terminals

2.4.2 Connection to output terminals
The outputs are insulated between the power supply inputs. The “Lo” output terminal is connected tothe chassis.
For the connection to the output terminals, use a cable that is resistant to a maximum output current, anda round crimp terminal with a sleeve.
For the wiring to the load, use a wire that is as thick as possible, twisting the wire together so that it
does not form a loop, and not making it any longer than necessary.

Output terminals

Figure 2-4. Output Terminals！

CAUTION Note that since the “Lo” output terminal of this product is connected to the chassis, it is not possible
to connect multiple outputs of this product in series.
 Also, do not connect a grounded load or measuring instrument whose input block is grounded to the
output terminal of this product, as this may cause some of the output current to leak to the protective
grounding wire of the power supply and have an unpredictable effect on the load or measuring
instrument as shown in Figure 2-5.

！

WARNING During output, absolutely never touch the output terminals.
 For safety’s sake, be sure to use this product with the supplied pin covers mounted.
 To reduce the risk of electric shock and the contact between the terminals, use a round crimp terminal
with a sleeve for the connection to the output terminals.

2-9BP4640/BP4650

2.4

Connection to I/O terminals
Load, measuring
instrument

BP series
Hi Output current

Lo

Figure 2-5. Connection to Grounded Load or Measuring Instrument

 The procedure for connecting the cables to the output terminals is described below.
<1>
<2>
<3>
<4>
<5>
！

Remove the screw attached to the output terminal.
Insert the removed screw to the round crimp terminal attached to the cable.
Insert this to the OUTPUT pin while making sure that the cable does not come off the screw.
Securely tighten the screw until the terminal is fixed, using a torque of 6.6 (Nꞏm).
After connecting both the “Hi” and “Lo” output terminals, attach the supplied terminal covers.

WARNING For safety’s sake, be sure to connect the outputs after switching the power off.

2-10

BP4640/BP4650

2.4

Connection to I/O terminals

2.4.3 Connection to USB connector
Using a commercially available USB cable, connect the USB connector on the rear panel to a PC.
To reduce radiowave leakage, attach the accompanying ferrite core to the USB cable.
refer to “5. USB INTERFACE”.
For details on control from an external PC via USB,

USB interface

Figure 2-6. USB Connector-------- Comment ---------------------------------------------------------------------------------------------------------- As the USB cable, use a commercially available Type A-Type B cable.
 It is recommended to use fully-shield, short USB cable.
 The use of USB hub may cause a communication failure.
 To reduce radio leakage in the USB cable, attach the accompanying ferrite core.
---------------------------------------------------------------------------------------------------------------------------------

2-11

BP4640/BP4650

2.4

Connection to I/O terminals

2.4.4 Connection to external control I/O connector
This product has an external digital I/O (8 bits each for input and output) for control from external via
digital signal input and status output via digital signals. The connector is a D-sub 25-pin connector.

External control I/O connector

Figure 2-7.

External Control I/O Connector

About external control,
Refer to “4.6 Control via External Control I/O Connector”.
About enabling external control,
Refer to “4.9.7 Setting of external control input enable/disable”.

2-12

BP4640/BP4650

2.4

Connection to I/O terminals

Table 2-2 lists the various pin signals.
Table 2-3. External Control I/O Connector Pin List
Pin No.

I/O

Function

1

OutputPower on/off status2

OutputOutput on/off status3

OutputOverload4

OutputSoftware busy

5

OutputStep sync output 0

6OutputStep sync output 1

7

OutputUndefined

8

OutputUndefined

9

GND

Remark
0: Off
1: On
0: Off
1: On
0: Normal
1: Overload
0: Normal
1: Busy



10

Input

Undefined

11

Input

Output off

Falling detection

12

Input

Output on

Falling detection

13

Input

Sequence start

Falling detection

14

Input

Sequence stop

Falling detection

15

Input

Sequence hold

Falling detection

16

Input

Sequence branch trigger 0

Falling detection

17

Input

Sequence branch trigger 1

Falling detection

18

GND



19

+5 V



20

OutputReserved

21

OutputReserved

22

OutputReserved

23

OutputReserved

24

OutputReserved

25

OutputReserved

2-13

50 mA or lower

BP4640/BP4650

2.4

Connection to I/O terminals

2.4.5 Connection to external signal input pin
To use signal input from external as the signal source, connect the external signal input terminal (EXT
SIGNAL IN) on the front panel to the external signal source. For the connection, use a coaxial cablewith a BNC connector.
The specifications of the external signal input terminal are as follows.
Frequency range:
Gain:

Gain accuracy:
Input impedance:
Non-destructive max.:

DC to 200 kHz
100  (100 V/1 V), in-phase (All models, CV mode)
40  (40 A/1 V), in-phase (BP4640, CC mode)
50  (50 A/1 V), in-phase (BP4650, CC mode)5 % (1 kHz)10 k
5 V

EXT SIGNAL IN terminal

Figure 2-8. EXT SIGNAL IN Terminal

2-14

BP4640/BP4650

2.4

Connection to I/O terminals

2.4.6 Connection to monitor output pin
To monitor the output voltage and output current, connect the monitor output terminal (MONITOR
OUT) on the front panel. For the connection, use a coaxial cable with a BNC connector. To monitor the
output voltage, connect this cable to the Vo terminal, and to monitor the output current, connect it to the
Io terminal.
The specifications of the monitor output terminal are as follows.

 Output voltage monitor output
Monitor ratio:
Monitor accuracy:
Frequency characteristics:

Output impedance:

1/100 of output voltage (1 V/100 V), in-phase (All models)1.2 V of output voltage (1 M monitor output load impedance)
DC to 40 kHz: 0.5 dB
40 kHz to 400 kHz: +1 dB, 3 dB(1 kHz reference, 1 M monitor output load impedance)50  Output current monitor output
Monitor ratio:
Monitor accuracy:

Frequency characteristics:

Output impedance:

1/40 of output current (1 V/40 A), in-phase (BP4640)
1/50 of output current (1 V/50 A), in-phase (BP4650)
0.8 A of output current (BP4640)
1 A of output current (BP4650)(1 M monitor output load impedance)
DC to 20 kHz: 0.5 dB
20 kHz to 200 kHz: +1 dB, 3 dB(1 kHz reference, 1 M monitor output load impedance)
50 

MONITOR OUT terminals

Figure 2-9. MONITOR OUT Terminal

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BP4640/BP4650

2.5Power on/off and Operation Check

2.5 Power on/off and Operation Check
Once the connections have been completed, check the operation.
(1)

Check whether this product is correctly connected as described heretofore.

(2)

Switch the power switch of this product to on. Power is supplied and this product starts operating.

<1> Press the right side (ON) of the POWER switch<2> The LCD lights up and the startup screen is displayed(3)

The operation panel immediately after the power has been switched on shows the same setting
values as when the power was switched off the previous time. If this product is switched on for
the first time after it is purchased, the internal default settings are applied.
Refer to “4.7For the operation method to read the setting values saved in the memory,
Memory Functions”.

(4)

To switch the power off, press the left side of the power switch after checking the OUTPUT off
status. As a result, the power supply to this product is disconnected and the power is switched off.
！

CAUTION Securely connect all the required cables. Improper connection may cause equipment failure.


Before switching the power off, be sure to check that OUTPUT is in the off status.

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2.6

Radio Law

2.6 Radio Law！

CAUTION This product complies with the High-Frequency Application Equipment provisions of Japan’s Radio
Law.
a) Related laws and regulations are summarized as follows.
 Article 100 of the Radio Law defines the following equipment as “high-frequency applicationequipment”.
(1) Telegraphy, telephony, or other telecommunications facilities that apply a radio frequency
current of 10 kHz or higher to a power line.
(2) Equipment specified by Ministry of Internal Affairs and Communications regulations otherthan radio equipment and the equipment defined in (1) above, that uses a high-frequency
current of 10 kHz or higher.
 “Ministry of Internal Affairs and Communications regulations” mentioned above refers to Article 45of the Regulations for Enforcement of the Radio Law. Under this article, equipment that requires
authorization is defined as follows. (1) Medical equipment (equipment used for medical treatment that generates high-frequency
energy and that uses output greater than 50 W)(2) Industrial heating equipment (equipment used for industrial heating that generates
high-frequency energy and that uses output greater than 50 W)(3) Various equipment (equipment that is used for heat generation or ionization and that impartshigh-frequency energy to a load) If the usage mode corresponds to “high-frequency application equipment” as defined above,
according to Article 26 of the Radio Station License Procedure Regulations, the required applicationmust be submitted to the Bureau of Telecommunications that has jurisdiction over the location
where the equipment is installed, and the approval of the Minister of Public Management, Home
Affairs, Posts and Telecommunications must be received.
For details, refer to Article 100 of the Radio Law, Article 45 of the Regulations for Enforcement of
the Radio Law, Article 26 of the Radio Station License Procedure Regulations, and Article 65 of theRadio Equipment Law.
b) The application forms and form filling instructions can be obtained at the website of the Bureau of
Telecommunications, as well as procedure details and information about other documents to be
attached to the application forms.
c) Applications must be submitted by the person who installed the equipment. Information such as theinstallation location must be filled in.
d) The external view drawings or photographs of this product are required as attached documents.
If you have any questions, contact an NF Corporation.

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3. NOMENCLATURE
3.1 Nomenclature ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 3-2
3.1.1 Operation panel ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 3-2
3.1.2 Front panel ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 3-4
3.1.3 Rear panel ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 3-6
3.2 Tilting LCD Screen ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 3-7

3-1

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3.1

Nomenclature

3.1 Nomenclature
3.1.1 Operation panel

BIPOLAR DC POWER SUPPLY BP4610

<1>

<6>

<5>
<4>
<2>
OUTPUTCANCEL

ENTER

<7>
TOP
MENU

START

SEQUENCE
STOP

HOLD

LOCAL

<3>

<8>

<9>

<1> LCD
This is a 320 (horizontal)  240 (vertical) pixel, blue and white 2-color liquid crystal display.
The contrast can be adjusted by operating the operation panel.
Refer to “4.1 LCD Screen”.
<2> On/Off LED
This is a lamp that displays the output on/off status.
It is lit when the output is on and extinguished when the output is off.
Refer to “4.3.2 Output on/off”.
<3> OUTPUT key
This key switches the output on/off.
Refer to “4.3.2 Output on/off”.

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3.1

Nomenclature<4> CANCEL key
This key is used to cancel operations, close entry boxes, and move one level up at a time in themenu tree.
Refer to “4.2 Basic Operation”.
<5> UP/DOWN keys
These keys are used to move the cursor in menus and select boxes.
Refer to “4.2 Basic Operation”.
<6> ENTER key
This key is used to enter settings, open entry boxes, and move one level down at a time in themenu tree.
Refer to “4.2 Basic Operation”.
<7> MODIFY dialThis dial is used change the value of the digit indicated by the digit cursor in a modify box.
Refer to “4.2 Basic Operation”.
<8> DIGIT key
This key is used to move the digit cursor in a modify box.
Refer to “4.2 Basic Operation”.
<9> Shortcut keys
These keys are used to call frequently used functions.
Refer to “4.2.7 Shortcut key”.

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3.1

Nomenclature

3.1.2 Front panel<12><13> <14>

<11>

<15>
<16>
<17>

<10>

<10> POWER switch
This switch is used to power on/off the this product.
<11> Intake ventThis is the vent for intaking air for cooling this product. Periodically clean the filter.
Refer to “7.5 Cleaning the Air Filter”.
<12> EXT SIGNAL IN
This is the connector used to input an external signal.
Refer to “2.4.5 Connection to external signal input terminal”.
<13> MONITOR OUTVoThis is the voltage monitor output terminal.
Refer to “2.4.6 Connection to monitor output terminal”.

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3.1

Nomenclature<14> MONITOR OUTIo
This is the current monitor output terminal.
Refer to “2.4.6 Connection to monitor output terminal”.
<15> T volume
This volume is used to adjust the time constant.
Refer to “4.10 Response Calibration”.
<16> V volume
This volume is used to adjust the voltage feedback amount.
Refer to “4.10 Response Calibration”.
<17> I volume
This volume is used to adjust the current feedback amount.
Refer to “4.10 Response Calibration”.

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3.1

Nomenclature

3.1.3 Rear panel

<19>

<20>
<21>

<22>

<18>

<18> Output terminal
This is the voltage and current output terminal. The Lo side is internally connected to thechassis.
Refer to “2.4.2 Connection to output terminals”.
<19> Exhaust ventThis is the vent for exhausting the cooling air of this product.
<20> USB connector
This is the USB interface connector for controlling this product from an external computer.
Refer to “2.4.3 Connection to USB connector” and “5 USB INTERFACE”.
<21> External control I/O connector
This is the I/O connector used to control output and sequence operation via an external
digital signal.
Refer to “2.4.4 Connection to external control I/O connector”.
<22> LINE INPUTThis is the power supply input terminal. Pay attention to the voltage input range.
Refer to “2.4.1 Connection to power supply input terminals”.

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3.2

Tilting LCD Screen

3.2 Tilting LCD Screen

Figure 3-1.

Lift Operation Panel

When lifting the operation panel, first gently pull the panel toward you holding its top and bottom.
After pulling out the panel until it stops, gently lift up only the bottom of the panel. The operation
panel will remain lifted at the angle you have chosen.

 How to lift the operation panel(3) Then lift up only the bottom of the panel.

(1) Holding the top and bottom of the operation
panel, gently pull it toward you.

(4) Once the panel is at the desired angle, release it.

(2) Pull out the operation panel until it stops.

Figure 3-2.

Operation Panel Lifting Method

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3.2

！

Tilting LCD Screen

CAUTION Do not try to lift the operation panel without first pulling it out, as this will damage the panel.

 How to return the operation panel(3) Placing your hands on the top and bottom of theoperation panel (but not on the LCD screen), push
the panel in while keeping it parallel with the faceof this product.

(1) Holding the top and bottom of the operation panel,
gently lower the bottom of the panel.
(2) Lower the panel until it is parallel with the face of
this product.

(4) Push the panel in until you hear a clicking sound.

Figure 3-3.

！

Operation Panel Return Method

CAUTION Be sure to use both hands when pulling out, lifting, and returning the operation panel.

！

WARNING When opening/closing the operation panel, be careful not to get your fingers pinched.

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4. OPERATION
4.1 LCD Screen ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-3
4.1.1 Status iconsꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-4
4.1.2 Warning and error displayꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-5
4.1.3 Sequence display ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-5
4.2 Basic Operation ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-6
4.2.1 Menus ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-6
4.2.2 Menu tree navigation method ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-9
4.2.3 Numerical input operation ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-10
4.2.4 Numerical input operation requiring confirmation(during USB ID setting) ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-10
4.2.5 Selective input operation requiring confirmation ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-10
4.2.6 Execution input ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-11
4.2.7 Shortcut keys ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-11
4.3 Basic Functionsꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-12
4.3.1 Setting of operation mode ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-13
4.3.2 Output on/offꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-15
4.3.3 Setting of DC voltage and DC current ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-17
4.3.4 Setting of superimposed AC voltage andsuperimposed AC current ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-18
4.3.5 Setting of frequency ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-21
4.3.6 Setting of waveform ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-22
4.4 Setting of limiters ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-24
4.4.1 Shifting the output voltage rangeꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-26
4.4.2 Output voltage limiters ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-28
4.4.3 Output current limiters ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-28
4.5 Sequence Operation ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-29
4.5.1 Sequence operation specifications ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-29
4.5.2 Setting of sequence ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-36
4.5.3 Sequence programming ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-38
4.5.4 Sequence operation control ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-43
4.5.5 Sequence memory clear ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-45
4.5.6 Sequence operation setting example ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-46
4.5.7 Sequence operation execution ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-50
4.6 Control via External Control I/O Connector ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-54
4.7 Memory Functionꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-55
4.8 Remote Control ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-58
4.8.1 Switching USB interface ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-59
4.8.2 USB ID ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-60
4.8.2.1 USBTMC ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-60
4.8.2.2 USB 488 ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-62
4.8.3 Switch to local mode ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-63

4-1

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4.9 System Menu ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-66
4.9.1 Keylock ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-68
4.9.2 Beep sound ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-69
4.9.3 LCD contrast adjustment ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-70
4.9.4 Setting of LCD display color ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-71
4.9.5 Setting of frequency and time unitsꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-72
4.9.6 Setting of operation of output andresponse calibrator at power-on ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-73
4.9.7 Setting of external control input enable/disable ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-74
4.9.8 Reset function ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-75
4.9.9 System information ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-75
4.10 Response Calibration ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-76
4.10.1 Outline ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-76
4.10.2 Fixed characteristics ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-77
4.10.3 Adjustment characteristics ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-78
4.10.4 Adjustment example ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-81
4.11 External Signal Input ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-82
4.12 Voltage and Current Monitor ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-83
4.13 Measurement Function ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 4-84

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4.1

LCD Screen

4.1 LCD Screen
The LCD on the operation panel is displayed divided into several windows, as shown in Figures 4-1 and
4-2.
A
B

D
C

Figure 4-1. LCD Screen (Normal Display)E

Figure 4-2. LCD Screen (Warning Display)

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4.1

LCD Screen

The various areas of the screen display the following information.
A: Status window:
B: Message box:

C: Measurement Value window:
D: Menu window:
E: Error Message Display window:

This area displays the various statuses of this product.
If an error occurs, a message box appears under the Statuswindow, displaying the cause of the error. The message box
automatically closes after 1.5 s. The overload and sequence
progress statuses are also displayed in this message box.
This area displays measurement values.
This area is where settings are performed.
If an error that requires confirmation input by the user occurs,
a warning message is displayed in the Error Display window.
This message continues to be displayed until the [ENTER]
key is pressed.

4.1.1 Status icons
Status icons that indicate the status of this product are displayed in the top part of the Status window.
Table 4-1 shows the status icons that are displayed.
Table 4-1. Status Icon List
Icon

Item
Drained battery

Description
This icon flashes when the battery is judged to be drained uponoccurrence of a backup memory sum-check error.

Calibration data valid/invalid

This icon flashes when the calibration data is invalid.

ErrorThis icon lights for a few seconds when an error occurs.

BusyThis icon lights when the status is busy.

OverloadThis icon flashes during overload.
These icons are displayed in the same location on the operation panel.

Sequence in progress

The icon that is displayed depends on the sequence status, as follows.
Idle status:

Sequence hold in progress

Key lock

Nothing is displayed.

Run status:

is displayed.

Hold status:

is displayed.

This icon lights when the key lock is set to on.
These icons are displayed in the same location on the operation panel.

Remote

The icon that is displayed depends on the status of this product.
Local:

Local lockout

Nothing is displayed.

Remote:is displayed.

Local lockout:

is displayed.

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LCD Screen

4.1.2 Warning and error display
Upon occurrence of a warning or error, an error message is displayed in the message box and Message
Display window.
refer to “6 TROUBLESHOOTING”.
For details on error messages,

4.1.3 Sequence display
This product has a function to display the sequence progress status. The information listed in Table 4-2
is displayed in the message box.
Table 4-2. Sequence Display
Message

Description

Remark*** indicates the step number currently being

SEQUENCE: RUNNING/STEP ***Sequence in progress

SEQUENCE: HOLDING/STEP ***Sequence hold in progress*** indicates the step number that is on hold.

SEQUENCE: FINISH

Sequence end

This message automatically disappears after 2 s.

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4.2

Basic Operation

4.2 Basic Operation
This section describes the basic operation of this product.

4.2.1 Menus
This product provides a hierarchical menu system for setting the various parameters.
Menu operations are performed in the Menu window on the LCD screen.
Figure 4-3 shows the menu tree of this product.
(1) SET(2) MISC(3) SEQUENCE(4) PROGRAM(5) MEMORY(6) REMOTE(7) SYSTEM(8) INFORMATION

Figure 4-3. Menu Tree
Tables 4-3 to 4-8 show the items displayed in each menu.

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4.2

Basic Operation

Table 4-3.
Icon

SET Menu Item List

Item

Reference

Selection of operation mode

“4.3.1 Setting of operation mode”

Selection of output on/off“4.3.2 Output on/off”

Setting of response calibration function“4.10 Response Calibration”

Setting of current voltage to be output“4.3.3 Setting of DC voltage and DC current”

Setting of current voltage to be output“4.3.3 Setting of DC voltage and DC current”

Setting of superimposed AC voltage“4.3.4 Setting of superimposed AC voltage
and superimposed AC current”“4.3.4 Setting of superimposed AC voltage

Setting of superimposed AC voltage

and superimposed AC current”
Setting of superimposed AC voltage“4.3.5 Setting of frequency”

frequency and superposed AC current
frequency
Selection of superimposed AC waveform“4.3.6 Setting of waveform”

Setting of + voltage limiter
Setting of  voltage limiter“4.4 Setting of limiters”

Setting of + current limiter
Setting of  current limiter
Setting of other function use and details“Table 4-4.

MISC Menu Item List”

Table 4-4. MISC Menu Item List
Item Name

Setting Item

Reference

SEQUENCE

Open sequence menu

“4.5 Sequence Operation”

MEMORY

Open memory menu

“4.7 Memory Functions”

REMOTE

Open remote menu

“4.8 Remote Control”

SYSTEM

Open system menu

“4.9 System Menu”

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4.2
Table 4-5.
Item Name

Basic Operation
SEQUENCE Menu Item List

Setting ItemCONTROL...

Reference

Sequence operation“4.5.4 Sequence operation control”

control
STEP

Step number

TIME

Step interval

DC VOLTDC voltage

DC CUR

DC current



DC voltage/DC current
operation typeAC VOLT

Superimposed AC voltage

AC CUR

Superimposed AC current
Superimposed ACvoltage/superimposed AC
current operation typeFREQ
PROGRAM

FrequencyWAVE

Waveform


SYNC CODEMEMORY...

Waveform operation type
Step sync output
Step sync output operation
type

STOP PHS

Step stop phase

STEP TERM

Step terminal

JUMP STEP

Jump step

JUMP NUM

Jump count

BRANCH0

Branch 0

BRANCH1

Branch 1“4.5.5 Sequence memory clear”

Clear sequence memory

Table 4-6.
Item Name“4.5.3 Sequence programming”

Frequency operation type

MEMORY Menu Item List

Setting Item

STORE...

Store setting contents

RECALL...

Recall setting contents

CLEAR...

Clear setting contents

Reference“4.7 Memory Functions”

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4.2
Table 4-7.
Item Name

Basic Operation
REMOTE Menu Item List

Setting Item

Reference

INTERFACE

INTERFACE standard

VENDOR ID

VENDOR ID

PRODUCT ID

PRODUCT ID

SERIAL NOSERIAL NO

USB488 ID

USB488 ID“4.8.2.2 USB 488”

LOCAL...

Switch to local mode

“4.8.3 Switch to local mode”“4.8.2.1 USBTMC”

Table 4-8.
Item Name“4.8.1 Switching USB interface”

SYSTEM Menu Item List

Setting Item

Reference

KEYLOCK

Key lock“4.9.1 Key lock”

BEEP

Beep

“4.9.2 Beep sound”

CONTRASTLCD contrast“4.9.3 LCD contrast adjustment”

COLOR

LCD display colors“4.9.4 Setting of LCD display colors”

FREQ UNIT

Frequency unit

TIME UNIT

Time unit

INIT OUT

Output on/off at power-on”4.9.5 Setting of frequency and time unit”“4.9.6 Setting of output and response
INIT RSP
EXTCONTROLRESET...

calibrator operation at power-on”

Response calibrator on/off at power-on“4.9.7 Setting of external control input

Enable/disable external control input

enable/disable”“4.9.8 Reset function”

Reset“4.9.9 System information”

INFORMATION Display system information

4.2.2 Menu tree navigation method
The menu window display items are navigated using the [UP] key and [DOWN] key. To move to thelower menu in the menu tree, press the [ENTER] key, and to move to the higher menu in the menu tree,press the [CANCEL] key.
The navigation method is detailed below.
<1> Select a menu item with the “▶ ” mark displayed to the right, by moving the menu cursor
displayed in the menu window with the [UP] key and the [DOWN] key.
<2> Pressing the [ENTER] key in this condition causes the lower menu to be displayed.
<3> Further pressing the [CANCEL] key in this condition causes the higher menu to be displayed
again.
<4> Further pressing the [CANCEL] key ultimately causes the top menu to be returned to.

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4.2

Basic Operation

4.2.3 Numerical input operation
If numerical input is required, a Modify box is displayed.
When this Modify box is opened, the digit cursor is displayed on one of the digits. Using the [DIGIT]
key, move the digit cursor and raise or lower the value with the [MODIFY] key. The actual setting value
is updated each time the value is changed with the [MODIFY] key. The Modify box is closed bypressing either the [ENTER] key or the [CANCEL] key.

Figure 4-4.

Modify Box

4.2.4 Numerical input operation requiring confirmation (during USB
ID setting)
The USB ID setting is performed in the Modify box, but the actual setting value is not updated eachtime the [MODIFY] key is pressed.
By pressing the [ENTER] key to close the Modify box, the setting value is actually updated. If the
Modify box is closed by pressing the [CANCEL] key, the updated value is not applied.
Refer to “4.8 Remote Control”.

4.2.5 Selective input operation requiring confirmation
If one item is selected from among various items and set, a Select box is displayed.
When this select box is opened, the selection cursor is displayed over one of the selection items. The
selection items are lineup vertically, and the selection cursor is moved by pressing the [UP] and[DOWN] keys.
If there are items that do not fit within the Select box, “▲” and “▼” are displayed at the topmost andbottommost line, respectively. Each time the [UP] or [DOWN] key is pressed, the items are scrolled one
item at a time. The selection cursor cannot be moved over the “▲” and “▼”.
The actual setting is updated and the Select box closed by pressing the [ENTER] key. If the Selectbox is closed by pressing the [CANCEL] key, the changed setting is not applied.

Figure 4-5.

Select Box

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4.2

Basic Operation

4.2.6 Execution input
Items that are actually executed by pressing the [ENTER] key are displayed in the Exe box.
Only one item recommended for execution is displayed in the Exe box at a time, and the execution
cursor is located over that item.
The item is actually executed when the [ENTER] is pressed, and the Exe box then closes. If the Exe box
is closed by pressing the [CANCEL] key, the item is not executed.

Figure 4-6. Exe Box

4.2.7 Shortcut keys
The following operations can be performed using shortcut keys on this product.
Table 4-9. Shortcut Key List
Key No.

Display on Operation Panel

Function

1

TOP MENU

Return to normal display (menu top)

2

START

Start sequence

3

STOP

Stop sequence

4

HOLD

Hold sequence

5

LOCAL

Return to local

refer to “4.5 Sequence Operation”.
For details on the functions of keys No. 2 to 4,
refer to “4.8.3 Switch to local mode”.
For details on the function of key No. 5,

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4.3

Basic Functions

4.3 Basic Functions
This product allows the following functions to be set via the SET screen in the Menu window.
:

Selects the operation mode.

:(
Refer to “4.3.1 Setting of operation mode”.)
Selects output on/off.

:

Refer to “4.3.2 Output on/off”.)(
Sets the DC voltage to be output.
:

Refer to “4.3.3 Setting of DC voltage and DC current”.)(
Sets the DC current to be output.

:

Refer to “4.3.3 Setting of DC voltage and DC current”.)(
Set the superimposed AC voltage.

:

Refer to “4.3.4 Setting of superimposed AC voltage and superimposed
AC current”.)
Sets the superimposed AC current.
(





:

Refer to “4.3.4 Setting of superimposed AC voltage and superimposed
AC current”.)
Sets the superimposed AC voltage frequency and superimposed AC current frequency.

:Refer to “4.3.5 Setting of frequency”.)(
Selects the superimposed AC waveform.

((

Refer to “4.3.6 Setting of waveform”.)

Menu window

Figure 4-7. LCD Screen

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4.3

Basic Functions

4.3.1 Setting of operation modeThis product has the operation modes listed in Table 4-10. The operation mode cannot be switchedduring output on. Set the operation mode at output off.
Table 4-10.
Voltage/Current

CV (constant voltage)

CC (constant current)

Operation Mode List
Signal Source

Operation Mode

INT (internal)

CV-INT

EXT (external)

CV-EXT

ADD (internal + external)

CV-ADDINT (internal)

CC-INT

EXT (external)

CC-EXT

ADD (internal + external)

CC-ADD Setting of voltage/current
This product allows setting of two amplification modes, CV (constant voltage) and CC (constantcurrent).
 CV:
 CC:

Uses this product as a constant voltage source. The voltage is supplied to the load
proportionally to the input signal.
Uses this product as a constant current source. The current is supplied to the load
proportionally to the input signal.

 Setting of signal sourceThis product can be set to one of three signal source modes, INT (internal), EXT (external), and
ADD (internal + external).
 INT:

Uses the internal signal source of this product. The DC/AC voltage (current) and the AC
frequency waveform set via the menus on the operation panel are output.
 EXT: The waveform is output from the external signal source connected to the external signal
input terminal (EXT SIGNAL IN) on the front panel.
 ADD: Outputs the waveform to which the above INT and EXT signal sources have been added.
Figure 4-8 shows the block diagram of the signal source block of the this product.

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4.3
EXT SIGNAL IN

Basic Functions

EXT+

To AMP CONTROLINTINT DC+INT OSC(Sin,Squ,Arb)

Figure 4-8.

Block Diagram of Signal Source Block Operation procedureand<1> Press the

CANCEL<2> Press the

CANCEL<4> Press the

icon.

ENTER

ENTER

key to display the Select box.

ENTER

<3> Press the

CANCELkeys to move the cursor to theandkeys to move the cursor to the mode to be set.

ENTER

ENTER

key to set the selected mode.

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4.3

Basic Functions

4.3.2 Output on/off
This product allows output on/off control via the operation panel.
During output on/off switching, the output relay is opened/closed after lowering the output level to 0 in
order to reduce contact arcs.
Output on/off is controlled with the following two methods.

 Operation procedure (from menu)
and<1> Press the

CANCEL<2> Press the

CANCELkeys to move the cursor to the

icon.

ENTER

ENTER

key to display the Select box.

ENTER

<3> Press theandkeys to move the cursor to “ON” if output is current off, and to“OFF” if output is currently on.

CANCEL

ENTER

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4.3

Basic Functions

ENTER<4> Press the
key to switch the output on/off.
When the output is switched on, the on/off LED lights, and when the output is switched off,the LED goes out.
OUTPUTOUTPUT

Output off

Output on Operation procedure (using OUTPUT key)
OUTPUT

This product allows output on/off control by simply pressing the
key.
When the output is switched on, the on/off LED lights, and when the output is switched off, the LED
goes out.

！

OUTPUTOUTPUT

Output off

Output on

CAUTION When switching the power off, be sure to check that OUTPUT is off.

！

CAUTION When switching the output on and off, pulse voltage output or current output may occur by switching
the internal circuit of this product. Therefore, an effect of this voltage or current may occur
depending on the load.
 It is possible to prevent from applying such voltage or current to the load by adding the switch to the
output. Please contact NF Corporation or an NF Corporation sales representative for details.

4-16

BP4640/BP4650

4.3

Basic Functions

4.3.3 Setting of DC voltage and DC current
To use this product as a DC voltage source (CV-INT or CV-ADD mode), set the DC voltage via theoperation panel.
 Setting range: Resolution:

115 V to 115 V
0.01 V

To use this product as a DC current source (CC-INT or CC-ADD mode), set the DC current via theoperation panel.
 Setting range:

40 A to 40 A (BP4640)
50 A to 50 A (BP4650)
0.01 A Resolution:

 Operation procedure<1> Press thesetting) or the

CANCEL<2> Press the

CANCELandkeys to move the cursor to theicon (with the DC current setting).

icon (with the DC voltage

ENTER

ENTER

key to display the Modify box.

ENTER

4-17

BP4640/BP4650

4.3

Basic Functions<3> Press theandkeys to move the cursor to the digit to be changed and then turn the[MODIFY] dial to set the desired value. When the output is on, the value that is set is
immediately reflected to the output.

<4> Once all the digits have been set, press the

CANCELor

ENTER

key to end the setting procedure.

4.3.4 Setting of superimposed AC voltage and superimposed AC
current
To superimpose an AC voltage on the DC output voltage of this product, or to output only an AC
voltage (CV-INT or CV-ADD mode), set the superimposed AC voltage via the operation panel.
 Setting range: Resolution:

0 Vp-p to 120 Vp-p
0.1 Vp-p

To superimpose an AC current on the DC current of this product, or to output only an AC current(CC-INT or CC-ADD mode), set a superimposed AC current via the operation panel.
 Setting range: Resolution:

0 Ap-p to 120 Ap-p (BP4640)
0 Ap-p to 150 Ap-p (BP4650)
0.1 Ap-p

 Operation procedureand<1> Press the
AC voltage is set), or the

CANCELkeys to move the cursor to theicon (when superimposed
icon (when superimposed AC current is set).

ENTER

4-18

BP4640/BP4650

4.3<2> Press the

CANCEL

ENTER

Basic Functions

key to display the Modify box.

ENTER

and
keys to move the cursor to the digit to be changed, and then turn the<3> Press the[MODIFY] dial to set the desired value. When the output is on, the value that is set is
immediately reflected to the output.

<4> Once all the digits have been set, press the

4-19

CANCELor

ENTER

key to end the setting procedure.

BP4640/BP4650

4.3

Basic Functions

 Setting value and actual output
Since the output of this product is influenced by the frequency characteristics of the amplification
block, a difference occurs between the amplitude setting value and the actual output amplitude in thecase of a high frequency.
Figure 4-9 shows the relationship (representative example) between the setting values on theoperation panel and the actual output values.
The frequency characteristics vary according to the load condition, response characteristics, output
waveform, load cable length, etc.
Output voltage frequency characteristics in CV mode
140

Output Voltage ［Vp-p］

120
100
80
60
40
20
10

100

1k

10 k

100 k

Frequency ［Hz］

Output current frequency characteristics when in CC mode
120

Output current [%]

100
80
60
40
20
0
10

100

1k

10 k

100 k

Frequency ［Hz］

Figure 4-9. Frequency Characteristics for Resistance Load in CV and CC Modes
Remark: The vertical axes current value at 100% of the figures of CC mode,and resistant load of each models are following.

Item
Current
Resistance load

BP464080 Ap-p
1.5 Ω

BP4650100 Ap-p
1.2 Ω

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BP4640/BP4650

4.3

Basic Functions

4.3.5 Setting of frequency
When superimposed AC voltage and superimposed AC current are generated, the superimposed AC
voltage frequency and superimposed AC current frequency can be set via the operation panel.
 Setting range: Resolution:

1 Hz to 100 kHz
0.1 Hz Operation procedureand<1> Press the

CANCEL<2> Press the

CANCELkeys to move the cursor to the

icon.

ENTER

ENTER

key to display the Modify box.

ENTER

<3> Press theandkeys to move the cursor to the digit to be changed, and then turn the[MODIFY] dial to set the desired value. When the output is on, the value that is set is
immediately reflected to the output.

<4> Once all the digits have been set, press the

4-21

CANCELor

ENTER

key to end the setting procedure.

BP4640/BP4650

4.3

Basic Functions

4.3.6 Setting of waveform
This product allows selection of a sine wave, square wave, or one of 16 arbitrary waves as the
waveform to be output, via the operation panel. Arbitrary waves are created through data transfer via the
USB interface. When output is on, the superimposed AC voltage waveform and superimposed AC
current waveform cannot be changed. To change the waveform, set switch off the output.
The waveforms listed in Table 4-11 can be selected.
Table 4-11.

Superimposed AC Voltage Waveform and Superimposed AC
Current Waveform List
Display on Operation Panel

Type

SIN

Sine wave

SQU

Square wave

ARB1 to ARB16

Arbitrary wave (16 types)

 Operation procedureand<1> Press the

CANCEL<2> Press the

CANCELkeys to move the cursor to the

icon.

ENTER

ENTER

key to display the Select box.

ENTER

4-22

BP4640/BP4650

4.3<3> Press the

CANCEL<4> Press theandBasic Functions

keys to move the cursor to the waveform to be output.

ENTER

ENTER

key to set the selected waveform.

4-23

BP4640/BP4650

4.4

Setting of limiters

4.4 Setting of limiters
To protect the load, this product has output voltage and output current limiter functions implemented
through hardware.
The maximum values for the output voltage and output current can each be set independently for thenegative and positive range. Limiting the output voltage and current to the set values is effective forpreventing failure of the connected load.
Limiter setting values are separately stored in the CV and CC modes.
refer to “8.19 Output Voltage
For details on the output voltage and output current supply ranges,
and Output Current Supply Ranges”.
Table 4-12.
Model
All models
BP4640BP4650Setting Item

Min.

Limiter Setting Ranges
Max.

Resolution

Initial Value+ voltage limiter

7.0 V

117.0 V

0.1 V

62.0 V voltage limiter

117.0 V

7.0 V

0.1 V

62.0 V+ current limiter

4A

104 A

1A

104 A

 current limiter

104 A

4 A

1A

104 A+ current limiter

5A

130 A

1A

130 A

 current limiter

130 A

5 A

1A

130 A

Setting accuracy (DC) *1
1 V
4 A
5 A

*1 The setting accuracy of the current limiter is within the following DC current.
Item
Current

BP4640
40 A

BP4650
50 A

 Output voltage range
The output voltage range of this product is determined by the  voltage limiter settings.
The maximum and minimum ranges of the  voltage limiter are limited to 124 V and 24 V,
respectively, and are reciprocally linked.

 Saving of output voltage/output current setting values
Limiter setting values are separately stored in the CV and CC modes.
！



CAUTION

During output of a high frequency (higher than approx. 1 kHz in the case of a sine wave), notethat the output may exceed the limiter level due to limiter operation delay.

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BP4640/BP4650

4.4

Setting of limiters

 Operation procedure (for setting + voltage limiter)
and<1> Press the

CANCEL<2> Press the

CANCELkeys to move the cursor to the

icon.

ENTER

ENTER

key to display the Modify box.

ENTER

<3> Press theandkeys to move the cursor to the digit to be changed, and then turn the[MODIFY] dial to set the desired value. When the output is on, the value that is set is
immediately reflected to the output.

<4> Once all the digits have been set, press the

4-25

CANCELor

ENTER

key to end the setting procedure.

BP4640/BP4650

4.4

Setting of limiters

4.4.1 Shifting the output voltage range
The output voltage range can be shifted through the voltage limiter settings. The output voltage width
can be shifted to any position from 115 V to +115 V within the maximum output voltage range of 120
Vp-p. (However, on the negative side, it is limited to 5 V max., and on the positive side, it is limited to+5 V max.)
DC output range
When [+Vo limit] - [-Vo limit] = 124 V (constant)
120

Vo(V)

<1>

100
80
60
40
20
-100

-80

-60<1> -40
<2>
<3>
<4>
<5>
<6>
<7>

Figure 4-10.

-20

-20

limit

limit

(V)

(V)

<1> +117 7<3><2> +102 22

<4>

<3>

+82 42<5><4>+62 62<6><5>+42 82<6>+22 102<7>+7 117

<7>
0

Vo

<2>

0
-120

+Vo

20

40

60

80

100

120

Io(%)

-40
-60
-80
-100
-120

DC Output Range (When Positive/Negative Voltage Limiter Setting Difference Is
Fixed to 124 V)

As shown in Figure 4-10, the output current range changes according to the output range.
In the case of this product, the DC power supply voltage of the amplifier changes according to thevoltage limiter value, to obtain an output that is as large as possible. The outputable power is maximum
when the limiter width is set to the maximum of 124 V. Note that in a case such as the one shown in
Figure 4-11, the maximum output current does not increase as much as shown in Figure 4-10 even if thepositive voltage limiter is lowered.
The horizontal axes of Figure 4-10 and Figure 4-11 are the ratios (%) to the following current value.
Item
Current

BP464040 A

BP465050 A

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4.4

Setting of limiters

DC output range
When [-Vo limit] = -7 V (constant)
Vo(V)

-120

-100

-80

Figure 4-11.

-60

-40

120
110
100
90
80
70
60
50
40
30
20
10
0
-20 -10 0
-20

<1>

+Vo

Vo

limit

limit

(V)

(V)

<1> +117 7<2><2> +102 7

<3>
<4>

<3>

+82 7<4>+62 7<5>+42 7<6>+22 7

<5>
<6>

20

40

60

80

100

120

Io(%)

DC Output Range (When Negative Voltage Limiter Setting Is Fixed to 7 V)

If this product is to emphasize the 2nd quadrant or 4th quadrants taking in power (to maximize thetake-in power amount), lower the negative voltage limiter as much as possible for the 2nd quadrant, or
the positive voltage limiter for the 4th quadrant.

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4.4

Setting of limiters

4.4.2 Output voltage limiters
By setting output voltage limiters, the maximum output voltage is limited, and the output voltage andoutput current supply ranges are determined. Depending on the operating conditions, the output voltage
Refer to “8.19 Output
may be limited to a narrow range due to the voltage limiter settings. (Voltage and Output Current Supply Ranges”.)
The difference between the positive voltage setting and the negative voltage setting is limited to 24 V or
higher and 124 V or under.
The specifications of the output voltage limiters are as shown in Table 4-12.

4.4.3 Output current limiters
The maximum output current can be limited through output current limiter settings. The source current
is positive.
Depending on the operating conditions, the output current may be limited to a narrow range due to theRefer to “8.19 Output Voltage and Output Current Supply Ranges”.)
current limiter settings. (The specifications of the output current limiters are as shown in Table 4-12.

！



CAUTION

When the set value of the current limiter is small, if output of a signal with a sharp rise and fall,such as a square wave, is attempted, the current limiter may switch on at the charging current of
the stray capacitance, even with no load, and the output waveform may deform or overload may
occur.

In such a case, make the set value of the current limiter large.

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4.5

Sequence Operation

4.5 Sequence Operation
4.5.1 Sequence operation specifications
This product allows the output voltage and output current to be freely programmed using the sequencefunction.
In addition to basic oscillation, the sequence function can be used as the signal source of the power
supply for specification testing, such as power supply environment testing and automotive electronics
testing. For example, by programming in advance a series of voltage change patterns for use in voltage
variation testing for electrical equipment, the output can be cycled through variations according to apreset sequence, allowing testing to be completed through a single operation.
The internal DC (direct current), sine wave, square wave, or any of 16 arbitrary waveforms loaded via
the USB interface can be used for the sequence operation. The sequence can be set to up to 255 steps (1step = 0.1 ms minimum), and the waveform, level, duration, and constant/sweep settings can be selectedindividually for each step. Moreover, repetition of the sequence can be specified between 1 to 999 times(or continuous).
Additional functions including branch operation, which causes the operation to go to the specified stepduring sequence operation, sequence start, stop, and hold, are also provided.
Number of sequences:
Number of steps:
Step time:
Operation within step:
Parameters:

Jump count:
Sequence control:

1 sequence each for the CV mode and CC mode
1 to 255 (within 1 sequence)
0.1 ms to 999.9999 s (resolution: 0.1 ms)
Constant or linear sweep
CV mode: DC voltage, superimposed AC voltage, frequency,
waveform, step sync output (2-bit)
CC mode: DC current, superimposed AC current, frequency, waveform,
step sync output (2-bit)
Remark:If a sine wave or square wave is selected as the waveform,
the waveform cannot be changed during the sequence.
If arbitrary waveform is selected, an arbitrary wave can be
specified for each step.
1 to 999, or continuous
Start:Starts sequence.
Stop:
Stops sequence.
Hold:
Maintains settings at that point in time. The operation
resumes at sequence start.
Branch:Branches to the specified step.

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4.5

Sequence Operation

 Sequence
A sequence consists of two or more steps, with the minimum unit constituting one step. The
superimposed AC phase is continuous as steps change.

 Step
Step execution and step transition parameters are described for each step. Even in the status where
no sequence is being executed, in other words regular output, the same parameters as for steps areheld. These parameters are subsequently used as regular output steps. In the following description,
step parameters are enclosed in [ ].
The step execution parameters specify the output and its behavior.
Table 4-13.

[Output parameters][Step operation types]

Note

Step Execution Parameters DC voltage (current) Superimposed AC voltage (current) Frequency
 Waveform (ARB only) Step sync output
The following items are provided as output behavior specifications for eachstep.
 Constant (CONST) Sweep (SWEEP) Output using end value of previous step (KEEP)Note

If KEEP is selected for [Step operation type], the [Output parameters] settings are ignored.

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BP4640/BP4650

4.5

Sequence Operation

The step transition parameters specify the next step and the transition timing.
Table 4-14.
[Step time][Step end phase]

Step Transition Parameters

Specifies the step transition as a time.
Enables/disables the step end phase.
If this parameter is set to enable, the step end phase is fixed to 0 deg.
The following settings are provided for specifying the behavior upon step end.

[Step termination]

 Continue sequence (CONT) Enter Hold status (HOLD) Enter Idle status (STOP)
The following settings are provided for specifying the step to be transitioned at the end of a[Jump step]step.
 Go to any step number (1 to 255)
 Go to next step number (0)A loop is realized by jumping the specified number of times to the step specified
with[Jump step].

[Jump count]

The following settings are provided for specifying the jump count.
 Specified count (1 to 999)
 Infinite count (0)The following settings are provided for specifying the step to be transitioned to through[Branch step]

branch control.
 Go to any step number (1 to 255)
 Continue step processing as is (0)When start control is performed in the regular output status when the status is Idle, Step 1 is executedand the steps cycle in the set order.
If [Jump step] is not specified, the steps are executed in the step number order, but if [Jump step] is
specified, that step is transitioned to.
The step end is when the [Step time] has elapsed. If [Step end phase] is enabled, the step end is when
[Step end phase] (0 deg) occurs following the lapse of the [Step time].
If both [Step termination] and [Jump step] are specified, the [Step termination] specification has
precedence.
A basic step transition example is shown below.
Outputparameter
Steps 1, 2

Step 3

Regularoutput step

Step 1

Step 2

Step 3Time<START>

Figure 4-12.

Basic Step Transition Example

4-31BP4640/BP4650

4.5

Sequence Operation

 Sequence status
Figure 4-13 shows a sequence operation status transition diagram.
Output on

Idle status(Regular output)<Start><Stop><Stop>*<Start>Run status(Sequence
execution)

Hold status(Pause)<Hold>*

Figure 4-13.

Sequence Status Transition Block Diagram-------- Comment ---------------------------------------------------------------------------------------------------------- The status can also be changed through [Step termination] specification.
--------------------------------------------------------------------------------------------------------------------------------Table 4-15.

Sequence Statuses

Idle status

Status in which regular output is performed.

Run status

Status in which sequence is executed.

Hold status

Status in which sequence is paused.
The output is held at the point in time when <Hold> is executed.

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4.5

Sequence Operation

 Sequence control
Sequence operation control is described below. Sequence control is indicated enclosed between
pointed brackets (<>) below.
Table 4-16.

Sequence Control<Start>Changes the status to Run status.
In the case of the Idle status, Step 1 is jumped to at the same time as <Start>, and thesequence starts.
In the case of the Hold status, the sequence resumes from the point in time when <Hold>is executed.
If the status changes to the <Hold> status with [Step termination], the status changes to[Jump step] at the same time as <Start> and the sequence restarts.

<Hold>The status changes to the Hold status.

<Stop>The status changes to the Idle status.
The status immediately changes to regular output step.
At this time, the value at <Stop> is held for the [Output parameter]of the regular output
step.

<Branch>The step changes to the step specified with [Branch step].
The status changes [Branch step] from the output status at the point in time when
<Branch> was executed.
STEP 2 setting Last value
 Step time

Output parameter<Hold><Start>Step 1Figure 4-14.

Step 2

Step 3Time

Example of Sequence Operation When <Start> Is Executed from Hold Status<Branch>Step 2 settings
 Last value
 Step time Branch step 5

Output parameter

Step 5 settings
 End value of previous step

Step 1Figure 4-15.

Step 2

Step 5Time

Example of Sequence Operation During <Branch>

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BP4640/BP4650

4.5

Sequence Operation

 Sequence loop
Sequence loop also allows the entire sequence or any step block within the sequence to be looped.
This is achieved with [Jump step] and [Jump count] specified for each step. A jump counter forcounting the number of jumps is held internally for each step, so multiloop is also possible.
Figure 4-16 shows the loop specification method and the step transitions.

Step4
 [Jump step] 0 [Jump count]

NoCareSpecified count (10 times)
Go to [Jump step].

Step5
 [Jump step] 0 [Jump count] NoCare
Specified count (10 times)
After jump, go to the next
step number.
Step6
 [Jump step] 5
 [Jump count] 10
Specified count (3 times)
Go to [Jump step].
Step7
 [Jump step] 4
 [Jump count] 3

Figure 4-16.

Loop Specification Method and Step Transition Example-------- Comment ---------------------------------------------------------------------------------------------------------- [Jump count] indicates the number of times jump is to be performed. Therefore, the loop
count is equal to the jump count + 1.
 In the above example, the jump count is specified as “10” in Step 6, so the number of times
Step 5 and Step 6 are executed is 11.
---------------------------------------------------------------------------------------------------------------------------------

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4.5

Sequence Operation

 Step sync output
The code described in the step under execution is output to the external control I/O connector.
However, “False” is output during regular output steps.
Step sync output
bit0
True
False

[Step sync output]

Step 1

Step 2

Step 3

Step 4

Step 5

0

1

0

0

1

Figure 4-17.

Time

Step Sync Output Example

 Setting of step end phase
If the step end phase has been enabled, the step execution time is as follows.
Time until the set step time + superimposed AC phase becomes 0deg.
Moreover, the operation after the set step time has elapsed is held to the setting value for that step.

Held at setting
value

Value set to this stepSWEEP

Time set with [Step time]

Figure 4-18.

Phase 0 wait time

Sequence Operation upon Phase 0 deg Wait Occurrence

4-35

BP4640/BP4650

4.5

Sequence Operation

4.5.2 Setting of sequence
The sequence setting method is described below.
 Input at every step via operation panel
 Programming on PC and transmission to this product via USB
 Creation of sequence data with sequence editing software (sold separately) and transmission to thisproduct
For details on the program messages during sequence operation,
Related”.
The operation method via the operation panel is described below.

refer to “5.3.3 Sequence Sequence menu display procedureand<1> Press the

CANCEL<2> Press the

icon.

ENTER

ENTER

key to display the MISC screen.
andPress theCANCELkeys to move the cursor to thekeys to move the cursor to [SEQUENCE].

ENTER

4-36

BP4640/BP4650

4.5<3> Press the

CANCEL

ENTER

Sequence Operation

key to display the SEQUENCE screen.

ENTER<4> Press theandkeys to select the operation to be performed.

 To control a sequence operation: Select [CONTROL].
Refer to “4.5.4 Sequence operation control”.)(
 To program a sequence: Select [PROGRAM].
Refer to “4.5.3 Sequence programming”.)(
 To control the sequence memory: Select [MEMORY].
Refer to “4.5.5 Sequence memory clear”.)(

CANCEL<5> Press the

CANCEL

ENTER

ENTER

key to display the various screens.

ENTER

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4.5

Sequence Operation

4.5.3 Sequence programming
When PROGRAM is selected in the SEQUENCE screen, the PROGRAM screen is displayed. Sequence
programming is performed using the various items displayed on the PROGRAM screen.
The step settings are performed separately for each step.
Changes in waveform through the sequence are possible only through the arbitrary waves (ARB1 to
ARB16). Before programming changes in waveform, set the output waveform to arbitrary wave
beforehand. To execute a sequence using a sine wave or square wave, set the sine wave or square wave
output to on before the start of the sequence. While executing a sequence with a sine wave or squarewave, the waveform in that sequence cannot be changed.
refer to “4.3.6 Setting of
For the output method for sine wave, square, and arbitrary waves,waveform”.
The various items displayed on the PROGRAM screen are listed in Table 4-17.

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4.5
Table 4-17.
Item Name
Step No.

TIME

Step time

DC VOLTDC voltage

DC CUR

DC current

DC voltage/DC current
operation typeAC VOLT

Superimposed AC voltage

AC CUR

Superimposed AC voltage



FREQ

Superimposed AC
voltage/superimposed AC
current operation type

Frequency

PROGRAM Screen Item List

Item

STEP



Sequence Operation

Frequency operation typeOperation
Specifies the step number to be set.
Setting range: 1 to 255
Specifies the duration of the specified step.
Setting range:
0.0001 s to 999.9999 s
Setting resolution:
0.0001 s
Sets the DC voltage in the CV mode.
Setting range:
115.00 V to 115.00 V
Setting resolution:
0.01 V
Sets the DC current value in the CC mode.
Setting range:40.00 A to 40.00 A (BP4640)
50.00 A to 50.00 A (BP4650)
Setting resolution:
0.01 A
Sets the type of transition to the specified DC voltage value and DC
current value. The type of transition can be selected from the following
three.
 CONST: Output of the specified value
 KEEP:
Output of the last value of the previous step SWEEP: Output started with the last value of the preceding step,with linear sweep outputting the specified value at the endof the step
Sets the superimposed AC voltage value in the CV mode.
Setting range:
0.0 Vp-p to 120.0 Vp-p
Setting resolution: 0.1 Vp-p
Sets the superimposed AC voltage value in the CC mode.
Setting range:
0.0 Ap-p to 120.0 Ap-p (BP4640)
0.0 Ap-p to 150.0 Ap-p (BP4650)
Setting resolution: 0.1 Ap-p
Sets the type of transition to the specified superimposed AC voltage
value and superimposed AC current value. The type of transition can beselected from the following three.
 CONST: Output of the specified value
 KEEP:
Output of the last value of the previous step SWEEP: Output started with the last value of the preceding step,with linear sweep outputting the specified value at the endof the step
Sets the superimposed AC frequency.
Setting range:
1.0 Hz to 100000.0 Hz
0.1 HzSetting resolution:
Sets the type of transition to the specified frequency. The type oftransition can be selected from the following three.
 CONST: Output of the specified value
 KEEP:
Output of the last value of the previous step SWEEP: Output started with the last value of the preceding step,with linear sweep outputting the specified value at the endof the step

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4.5

Item Name

Sequence Operation

Item

WAVE

WaveformFrequency operation typeOperation
Selects the arbitrary waveform to be output.
ARB1 to ARB16
Setting range:
Selects the type of transition to the specified waveform. The type oftransition can be selected from the following three.
 CONST: Output of the specified waveform KEEP: Output of the waveform of the previous step

Step sync output

Sets the code (2 bits) to be output in sync during step execution. The
sequence step transition can be checked by observing the step sync
output.
Bit 0 is output from pin 5 (DOUT5) of the external control I/O
connector, and bit 1 is output from pin 6 (DOUT6).
The step sync output can be selected from the following four types. (Thecode is made up of the values of bits 1 and 0, in this order.)In the Idle status, the code is 0, 0.
 0, 0 0, 1
 1, 0 1, 1

Step sync output operation
type

Specifies the output method for step sync output. The output method canbe selected from the following two types.
 CONST: Output of specified code
 KEEP: Output of same code as the previous step

Step end phase

Specifies step end phase (0 deg fixed) enable/disable. The setting can beselected from the following two.
 DISABLE: Disable
 ENABLE: Enable

STEP TERM

Step termination

Sets the operation following step end. The setting can be selected fromthe following three.
 CONT: Continue sequence.
 STOP: Enter Idle status.
 HOLD: Enter Hold status.

JUMP STEP

Jump step

Sets the step number to be jumped to after step end.
 0:Jump to next step number.
 1 to 255: Jump to the specified step number.

JUMP NUM

Jump countSets the number of times (specified with [JUMP STEP]) that the jump
operation is to be performed.
 0:Infinite number of jumps
 1 to 999: Specified number of jumps

BRANCH0

Branch step 0

BRANCH1

Branch step 1

SYNC CODESTOP PHS

Sets the step number to be jumped to when there is a trigger input. Twotypes of branch step can be set, BRANCH0 and BRANCH1.
As a usage example, by setting the operation to stop following sweep toa low number at the jump destination step, it is possible to stop theoperation at a safe point when something has occurred.
 0:
Disabled branching.
 1 to 255: Jump to the specified step number.

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4.5

Sequence Operation

The operation procedures for the various items on the PROGRAM screen are described below.

 Operation procedure <1>
The settings of the DC voltage/DC current operation type, superimposed AC voltage/superimposed
AC voltage operation type, frequency operation type, waveform (WAVE), waveform operation type,step sync output (SYNC CODE), step sync output operation type, step end phase (STEP PHS), andstep termination (STEP TERM), are performed with the following procedure.
In the following example, step termination (STEP TERM) is set.
<1> Open the SEQUENCE screen and display the PROGRAM screen.
For the procedure up to the display of the PROGRAM screen,
sequence”.

and<2> Press the

CANCEL<3> Press the

CANCEL<5> Press thekeys to move the cursor to [STEP TERM].

ENTER

ENTER

key to display the Select box.

ENTER

<4> Press the

CANCELrefer to “4.5.2 Setting ofandkeys to move the cursor to the operation to be set.

ENTER

ENTER

key to set the operation at step termination.

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4.5

Sequence Operation

 Operation procedure <2>
The settings of the step number (STEP), step time (TIME), DC voltage (DC VOLT), DC current (DCCUR), superimposed AC voltage (AC VOLT), superimposed AC current (AC CUR), frequency(FREQ), jump step (JUMP STEP), jump count (JUMP NUM), and branch (BRANCH0/BRANCH1),
are performed with the following procedure.
In the following example, the step time (TIME) is set.
<1> Open the SEQUENCE screen and display the PROGRAM screen.
For the procedure up to the display of the PROGRAM screen,
sequence”.

and<2> Press the

CANCEL<3> Press the

CANCELrefer to “4.5.2 Setting of

key to move the cursor to [TIME].

ENTER

ENTER

key to display the Modify box.

ENTER

<4> Press theandkeys to move the cursor to the digit to be changed and then turn the[MODIFY] dial to set the desired value.

<5> In the same way, set all the digits.

<6> Once all the digits have been set, press thecompletes the step time setting procedure.

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ENTER

key. This enables the setting values andBP4640/BP4650

4.5

Sequence Operation

4.5.4 Sequence operation control
The sequence operation is controlled with CONTROL in the SEQUENCE screen.
The sequence can start only when the output is on. Therefore, the sequence control select box can beselected only when output is on.
Table 4-18 lists the CONTROL select box items.
Table 4-18.

CONTROL Select Box Item List

Select Box Item

Operation

START

Starts sequence operation. The status changes to the Run status.

STOP

Stops sequence operation. The status changes to the Idle status.

HOLD

Pauses sequence operation. The status changes to the Hold status.

BRAN0

Branches to the step specified with [Branch step].

BRAN1

If [Branch step] is not specified, this item is ignored.

The operation procedure is described below.

 Operation procedure (in case of operation from menu)<1> Open the SEQUENCE screen and display the CONTROL select box.
For details on the procedure until display of the CONTROL select box,
Setting of sequence”.

and<2> Press theset.

CANCEL<3> Press therefer to “4.5.2

keys to move the cursor to the item indicating the operation to be

ENTER

ENTER

key to perform the selected operation.

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4.5

Sequence Operation

 Operation procedure (in case of operation using shortcut keys)
Sequence operation control is also possible via the shortcut keys under the operation panel.
The [START], [STOP], and [HOLD] keys located under [SEQUENCE] on the operation panel
correspond to the same items in the CONTROL select box. Branch control cannot be performed
using the shortcut keys.
BIPOLAR DC POWER SUPPLY BP4610

OUTPUTTOP
MENU

CANCELSTARTSEQUENCE
STOP

ENTER

HOLD

LOCAL

Sequenceshortcut
shortcut
Sequence
keyskeys

Figure 4-19.

Sequence Shortcut Keys

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4.5

Sequence Operation

4.5.5 Sequence memory clear
The sequence memory is cleared with MEMORY on the SEQUENCE screen.
Saving to the sequence memory is performed automatically. One sequence can be saved for each of theCV mode and the CC mode.
The procedure is described below.

 Operation procedure<1> Open the SEQUENCE screen and display the MEMORY select box.
For the procedure up to the display of the MEMORY select box,of sequence”.

<2> Press the

CANCEL

ENTER

refer to “4.5.2 Setting

key to display the Exe box.

ENTER

ENTER

<3> Pressing the
key when [Clear] is selected clears the sequence memory. When the
Refer to “9sequence memory is cleared, the initial value is stored in the memory. (INITIAL SETTING LIST”.)

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4.5

Sequence Operation

4.5.6 Sequence operation setting example
The procedure for newly setting a sequence operation, taking as an example the sequence shown in
Figure 4-20, is described below.

Figure 4-20.

Sequence Transition Example (in CV-INT Mode)
Table 4-19.

Step No.

PROGRAM Setting List
1

Step time (TIME)

0.1

DC voltage (DC VOLT)
DC voltage operation type

2

3

4

5

6

0.2

0.1

0.2

0.2

0.3

2.50

7.50

7.50

5.00

10.00

0.00

SWEEP

KEEP

CONST

SWEEP

SWEEP

SWEEP

Step termination (STEP TERM)

CONT

CONT

CONT

CONT

CONT

STOP

Jump step (JUMP STEP)

0

0

0

2

0

0

Jump count (JUMP NUM)

1

1

1

1

1

1

Branch 0 (BRANCH0)

0

0

0

0

6

0

Though the DC voltage of step 2 is set to 7.50 V, the output DC voltage will be 2.5 V which is
succeeded from the previous step (step 1) because the DC operation type of step 2 is set to KEEP. After
executing step 4, the sequence will jump to step 2 because the jump step of step 4 is set to 2 (<1> inFigure 4-20). The output DC voltage will be kept to 5 V coming from the previous step (step 4) because
the DC operation type of step 2 is set to KEEP. The jump times of step 4 is set to 1, so the sequence will
move to the next step (= step 5) after jumping once and executing step 4 (<2> in Figure 4-20). The steptime of step 5 is set to 0.2 s and the branch 0 jump step of step 5 is set to step 6, so the sequence will
immediately move to step 6 when the branch 0 is input within the step time (<3> in Figure 4-20).

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4.5

Sequence Operation

The operation procedure is described below.

 Operation procedure via operation panel<1> Open the PROGRAM screen.
For how to open the PROGRAM screen,refer to “4.5.2 Setting of sequence”.

<Step 1 setting>key to move the cursor to [DC VOLT].

<2> Press the

CANCEL<3> Press the

CANCEL

ENTER

ENTER

key to display the Modify box.

ENTER

<4> Press theandkeys to move the cursor to the third item from the left and then turnthe [MODIFY] dial to set “2”. Next, move the cursor to the fourth item from the left and turnthe [MODIFY] dial to set “5” (thus setting “2.5 V”).

<5> Press the

ENTER

key to apply the set value.

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4.5<6> Press thefrom the top).

CANCEL<7> Press the

CANCEL<9> Press the

key and move the cursor to the line where “CONST” is displayed (fourth line

ENTER

ENTER

key to display the Select box.

ENTER

<8> Press the

CANCEL

Sequence Operation

key and move the cursor to [SWEEP].

ENTER

ENTER

key to apply the setting.

The other items are the same as the default setting value and thus need not be changed.

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4.5

Sequence Operation<Step 2 setting><10>

Press the<11>

Press the

<12>

and
keys to move the cursor to the right-most digit, and then turn thePress the[MODIFY] dial to set “2”.

<13>

Press the<14>

Press the<15>

Press the

<16>

and
keys to move the cursor to the fourth digit from the right and thenPress theturn the [MODIFY] dial to set “2” (thus setting 0.2 s).

<17>

Press the<18>

Using the same operation as in steps <2> to <5>, set DC VOLT = 2.5, and using the same
operation as in steps <6> to <9>, set the DC voltage operation type to “KEEP”.

and
ENTER

ENTER

keys to move the cursor to [STEP].

key to display the Modify box.

key to apply the set value.

key to move the cursor to [TIME].
ENTER

ENTER

key to display the Modify box.

key to apply the set value.

Then go on to set Step 3 and subsequent steps using the same procedure.

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4.5

Sequence Operation

4.5.7 Sequence operation execution
When the sequence programming has been completed, start the sequence.
The sequence operation execution procedure is described below.

 Operation procedure (in case of operation via the menu)
CANCEL

key to return to the top menu. The top menu is displayed as “SET” in the top<1> Press thepart of the menu window.

key to move the cursor to the<2> Press the

CANCEL<3> Press the

CANCEL

ENTER

ENTER

key to display the Select box.

ENTER

<4> Press the

CANCELicon.

key to move the cursor to “ON”.

ENTER

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4.5<5> Press the

ENTER

key to set the output on. The on/off LED goes on.

OUTPUTOUTPUT

Output off

Output on<6> Press the

CANCEL<7> Press the

CANCEL

Sequence Operation

key to move the cursor to the

icon.

ENTER

ENTER

key to display the MISC screen.

ENTER<8> Check that the cursor is positioned over [SEQUENCE], and then press thedisplay the SEQUENCE screen.

CANCELENTER

key to

ENTER

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4.5

Sequence Operation<9> Check that the cursor is positioned over [CONTROL], then press the
Select box.

CANCEL

<10>

ENTER

key to display the

ENTER

Select [START] and press the

ENTER

key to start the sequence.

 Operation procedure (in case of operation via the keys on the operation panel)
OUTPUT<1> Press theon.

key on the operation panel. The output is set to on and the on/off LED goes

OUTPUTOUTPUT

Output off

Output on<2> Press the [START] shortcut key to start the sequence.
MAIN

START

SEQUENCE
STOP

HOLD

LOCAL

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4.5

Sequence Operation

 Operation after sequence start
When the sequence starts, an icon () indicating that the sequence is currently running isdisplayed in the Status window. A message box that displays the number of the step currently being
executed is also displayed.
Status icon indicating thatsequence is running

Number of step currently
being executed

Figure 4-21.

LCD Screen When Sequence Is Running

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4.6

Control via External Control I/O Connector

4.6 Control via External Control I/O Connector
Output on/off and sequence execution can be controlled by inputting digital signals to the external
control I/O connector. (Detection cycle 2 ms)
External control input must be enabled to perform external control.
Refer to “4.9.7 Setting of external control input enable/disable”.)(
The status of this product can also be monitored by reading the output signal from the external control
I/O connector. (Switching cycle 0.1 ms)
The sequence step synchronized output signals are output from the external I/O connector.
Refer to “2.4.4 Connection to external control I/O connector”.)(
After the external signal input level was changed, several tens of ms might be required for the controller
to execute a function as a maximum response time. “Output ON/OFF” additionally requires approx.
10ms for a response of a relay device.
Table 4-20 lists the functions of each pin.
Table 4-20.
Pin No.

Input/Output

1

Output2

Output3

Output4

Output5

Output6

Output

11

Input

12

Input

13

Input

14

Input

15

Input

16

Input

17

Input

Functions of External Control I/O Connector
Function

Outputs the power on/off status.
0 and 1 indicate off and on, respectively.
Outputs the output on/off status.
0 and 1 indicate off and on, respectively.
Outputs the overload status.
0 and 1 indicate regular operation and abnormal status, respectively.
Outputs the software busy status.
0 and 1 indicate regular operation and busy status, respectively.
Step sync output 0.
Outputs bit 0 of the step sync output.
Step sync output 1.
Outputs bit 1 of the step sync output.
Output off.
Upon detection of the falling of the input signal, switches off the output.
Output on.
Upon detection of the falling of the input signal, switches on the output.
Sequence start.
Upon detection of the falling of the input signal, starts the sequence.
Sequence stop.
Upon detection of the falling of the input signal, stops the sequence.
Sequence hold.
Upon detection of the falling of the input signal, pauses the sequence.
Sequence branch trigger 0.
Upon detection of the falling of the input signal, jumps to the step specified with BRANCH0.
Sequence branch trigger 1.
Upon detection of the falling of the input signal, jumps to the step specified with BRANCH1.

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4.7

Memory Function

4.7 Memory Function
The various settings are battery backed up, so that when the power is applied, the settings when the
power was switched off the previous time are restored. However, the response characteristics selection
is not saved. Moreover, among the various settings, the basic settings (operation mode, DC,superimposed AC, output limiters) can be recorded to store/recall memories No. 1 to No. 30, and saved
settings can be called up for use.
The store/recall memory call operations can be performed only when output is off.
Memory control is performed in the [MEMORY] screen. After selecting an operation in Table 4-21,
specify the memory number for that operation in the Select box.
Once the memory number has been specified, the major setting contents recorded in that memory aredisplayed in the left part of the Menu window.
Table 4-21.

MEMORY Screen Menu Item List

Indications in Operation

Operation

STORE...

Saves the setting contents to the specified memory number.

RECALL...

Calls the setting contents of the specified memory number.

CLEAR...

Clears the setting contents of the specified memory number.

Displays setting contents of
selected

Figure 4-22.

Memory Contents Display Example

For the setting values after clear is executed,

refer to “9 INITIAL SETTING LIST”.

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4.7

Memory Function

 Operation procedureand<1> Press the

CANCEL<2> Press the<3> Press the

CANCEL

icon.

ENTER

ENTER

Press theCANCEL

key to move the cursor to the

key to display the MISC screen.
andkeys to move the cursor to [MEMORY].

ENTER

ENTER

key to display the MEMORY screen.

ENTER

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4.7<4> Press the

CANCEL<5> Press the

CANCELandkeys to select the operation to be performed.

ENTER

ENTER

key to display the Select box.

ENTER

<6> Press the

CANCEL

Memory Function

andkey to move the cursor to the target memory number.

ENTER<7> Check the setting contents displayed in the left part of the Menu window, and if they arecorrect, press the

ENTER

key to perform the specified operation to that memory number.

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4.8

Remote Control

4.8 Remote Control
Remote control of this product can be done by transmitting program messages from an external
Refer to “5. USB INTERFACE”.)
computer connected via the USB interface. (The various operation modes are entered by transmitting the interface messages listed in Table 4-22 tothis product. The current operation mode of this product can be known by looking at the status icon
displayed in the Status window on the LCD screen. The status icons are displayed at the same location(top right) on the operation panel.
Table 4-22.
Icon

Operation Mode List

Operation Mode

Interface Message

Local mode.
None

The various settings can be changed and output on/off can be switched via
the operation panel.

GTL

No status icon is displayed at the top right of the operation window.
Remote mode.
Control is performed from the external computer connected via the USB

REN

interface.
Local lockout mode.
Switching to the local mode via the LOCAL key on the operation panel or via

LLO

menu operation is prohibited.

Even in the remote mode, switching to the local mode can be done through key operation from therefer to “4.9operation panel. To prohibit operation via the operation panel, set keylock to on (System Menu”), or set the mode to the local lockout mode.
Even in the remote mode (including when local lockout has been specified), output off operation ispossible via the [OUTPUT] key.

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4.8

Remote Control

4.8.1 Switching USB interface
This product is compliant with USB Test and Measurement Class (USBTMC) and USB488. You canswitch USB interface.

 Operation procedureand<1> Press the

CANCEL<2> Press the<3> Press the

ENTER

key to display the MISC screen.
andkeys to move the cursor to [REMOTE].

ENTER

ENTER

key to display the REMOTE screen.
andPress theCANCEL

icon.

ENTER

Press theCANCELkeys to move the cursor to thekeys to move the cursor to [INTERFACE].

ENTER

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4.8<4> Press the

CANCEL

ENTER

Remote Control

key to display the Select box.

ENTER

and
keys to move the cursor to “USB488“for USB488 interface or<5> Press the“USBTMC” for USBTMC interface.

CANCEL

ENTER

ENTER

key to apply the setting, or press the<6> Press the
Restart the product when you change interface.

CANCEL

key to cancel the setting.

-------- Comment ---------------------------------------------------------------------------------------------------------- Switching USB interface is not valid until you restart the product. Restart the product when
you switch USB interface.
---------------------------------------------------------------------------------------------------------------------------------

4.8.2 USB ID
Used for a system connected with this product through USB, to enable the application identify eachsource.

4.8.2.1 USBTMC
If you are using USBTMC, USB ID has been assigned to each instrument. It can be checked in“REMOTE” screen.

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4.8

Remote Control

 Operation procedureand<1> Press the

CANCEL<2> Press the<3> Press the

icon.

ENTER

ENTER

Press theCANCELkeys to move the cursor to the

key to display the MISC screen.
andkeys to move the cursor to [REMOTE].

ENTER

ENTER

key to display the REMOTE screen.

If [INTERFACE] is USB488,
andPress theCANCEL<4> Press the

ENTER

ENTER

Press theCANCELkeys to select [INTERFACE].

key to display the Select box.
andkeys to select [USBTMC].

ENTER

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4.8

Remote Control

ENTER<5> Press the
key to switch interface to USBTMC. VENDOR ID, PRODUCT ID, and
SERIAL NO are displayed.
USB ID format (CANCELrefer to “5.1 Preparations Before Usage”)

ENTER

4.8.2.2 USB 488
If you are using USB488, it is necessary to set the USB ID for device identification in advance. The
USB ID setting is performed in the [REMOTE] screen.
The USB ID setting range is 1 to 65534.
Set the USB ID after making sure it is correct. If the USB ID is incorrect, control from the computer is
not possible. Moreover, if the USB ID is the same as that of another device within the same system,
faults may occur in the computer.

 Operation procedureand<1> Press the

CANCEL<2> Press the

icon.

ENTER

ENTER

Press theCANCELkeys to move the cursor to the

key to display the MISC screen.
andkeys to move the cursor to [REMOTE].

ENTER

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4.8<3> Press the

ENTER

Remote Control

key to display the REMOTE screen.

If [INTERFACE] is USBTMC, switch interface to USB488.
andPress theCANCEL<4> Press the

CANCELkeys to select [USB488 ID].

ENTER

ENTER

key to display the modify button.

ENTER<5> Press theandkeys to move the cursor to the digit to be changed and turn the[MODIFY] dial to set the desired value.

<6> Once all the digits have been set, press the

ENTER

setting and leave the USB ID unchanged, press the

key to set the USB ID. Or, to cancel the
CANCEL

.

4.8.3 Switch to local mode
Switching from the remote mode to the local mode can be done in the following three ways.
 Transmission of interface message GTL
 Operation via shortcut keys
 Operation via menu
The operation procedures are described below.

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4.8

Remote Control

 Operation procedure (operation via shortcut keys)
Press the [LOCAL] shortcut key to switch to the local mode.
MAIN

START

SEQUENCE
STOP

HOLD

LOCAL

This operation cannot be performed during keylock and local lockout.
Refer to “4.9.1 Keylock”.)
During keylock, release keylock before switching to the local mode. (icon is displayed in the Status window on the LCD screen. If local
In local lockout, thelockout is enabled, switch to the local mode using an interface message.

 Operation procedure (operation via operation panel menu)
and<1> Press the

CANCEL<2> Press the<3> Press the

CANCEL

icon.

ENTER

ENTER

key to display the MISC screen.
andPress theCANCELkeys to move the cursor to thekeys to move the cursor to [REMOTE].

ENTER

ENTER

key to display the REMOTE screen.

ENTER

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4.8<4> Press the

CANCEL<5> Press the

CANCEL<6> Press theandRemote Control

keys to select [LOCAL...].

ENTER

ENTER

key to display the Exe box.

ENTER

ENTER

key when [EXEC] is selected to switch to the local mode.

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4.9

System Menu

4.9 System Menu
The system settings for this product are performed via the system menu on the [SYSTEM] screen.
Table 4-23 lists the [SYSTEM] screen items.
Table 4-23.

System Menu Item List

Menu Item Name

Setting Contents

KEYLOCK

Keylock on/off

BEEP

Beep on/off

CONTRAST

Setting of LCD contrast

COLOR

Setting of LCD display color pattern

FREQ UNIT

Setting of frequency display unit

TIME UNIT

Setting of time display unit

INIT OUT

Setting of output on/off at power-on

INIT RSP

Setting of response calibrator operation on/off at power-on

EXT CONTROL

Setting of external control input enable/disable

RESET...

Execution of reset

INFORMATION

Display of system information

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4.9

System Menu

 [SYSTEM] screen display procedureand<1> Press the

CANCEL<2> Press the<3> Press the

CANCEL<4> Press the

icon.

ENTER

ENTER

Press theCANCELkeys to move the cursor to the

key to display the MISC screen.
andkeys to move the cursor to [SYSTEM].

ENTER

ENTER

key to display the SYSTEM screen.

ENTER

and

keys to select the operation to be performed.

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4.9

System Menu

4.9.1 Keylock
This product has functions to prevent misoperations during operation.
Key operations are disabled at times other than keylock off operation by setting keylock on. However,
output off operation through the OUTPUT key is enabled as a workaround during emergencies.

 Operation procedureand<1> Press the

CANCEL<2> Press the

CANCELkeys to move the cursor to[KEYLOCK].

ENTER

ENTER

key to display Select box.

ENTER

<3> Press theandkeys to move the cursor to “ON” to switch the keylock to on, or to“OFF” to switch the keylock off.

CANCEL<4> Press the

ENTER

ENTER

key to apply the setting, or press the

4-68

CANCEL

key to cancel the setting.

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4.9

System Menu

4.9.2 Beep soundIf the beep is switched on, a beep is emitted when a misoperation occurs, when a key is pressed, orwhen a modify operation is performed. Upon occurrence of overload, a warning sound is emitted
regardless of the beep sound setting.

 Operation procedureand<1> Press the

CANCEL<2> Press the

CANCELkeys to move the cursor to [BEEP].

ENTER

ENTER

key to display the Select box.

ENTER

<3> Press theandkeys to move the cursor to “ON” to switch the beep on, or to“OFF” to switch the beep off.

CANCEL<4> Press the

ENTER

ENTER

key to apply the setting, or press the

4-69

CANCEL

key to cancel the setting.

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4.9

System Menu

4.9.3 LCD contrast adjustment
The contrast of the LCD screen can be set in 100 steps according to the operating environment.
The adjustment entry box can also be displayed by simultaneously pressing the [ENTER] key and the[CANCEL] key. Therefore, even when the contrast is inadequate and the characters on the LCD screen
cannot be made out, it is still possible to adjust the contrast. In this case, the digit cursor forcibly goes tothe decimal position.

 Operation procedureand<1> Press the

CANCEL<2> Press the

CANCELkeys to move the cursor to [CONTRAST].

ENTER

ENTER

key to display the Modify box.

ENTER

<3> Press theandkeys to move the cursor to the digit to be modified and turn the
MODIFY dial to set the value.

<4> After setting all the digits, press the
key to cancel the setting.

ENTER

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key.

The LCD contrast is set.

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4.9

System Menu

4.9.4 Setting of LCD display color
The display color of the LCD screen on the operation panel can be selected from blue (white characters
against blue background) or white (blue characters against white background).

 Operation procedureand<1> Press the

CANCEL<2> Press the

CANCELkeys to move the cursor to [COLOR].

ENTER

ENTER

key to display the Select box.

ENTER

<3> Press theandkeys to move the cursor to “BLUE” to set a blue screen, or to“WHITE” to set a white screen.

CANCEL<4> Press the

ENTER

ENTER

key to apply the setting, or press the

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CANCEL

key to cancel the setting.

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4.9

System Menu

4.9.5 Setting of frequency and time units
The unit used when displaying the frequency and time parameters can be specified.
The frequency unit can be selected from Hz and kHz. The time unit can be selected from s and ms.

 Operation procedureandkeys to move the cursor to [FREQ UNIT] to set the frequency unit,<1> Press theor to [TIME UNIT] to set the time unit.

CANCEL<2> Press the

CANCEL

ENTER

ENTER

ENTER

<3> Press the

CANCEL<4> Press the

key to display the Select box.

andkeys to move the cursor to the unit to be displayed.

ENTER

ENTER

key to apply the setting, or press the

4-72

CANCEL

key to cancel the setting.

BP4640/BP4650

4.9

System Menu

4.9.6 Setting of operation of output and response calibrator at
power-onThis product allows the output to automatically go on at power-on.
Moreover, the response characteristics can also be set to the adjustment characteristics
Refer to “4.10.3 Adjustment characteristics”.)
simultaneously with power-on. ( Operation procedureandkeys to move the cursor to [INIT OUT] to set the output operation<1> Press theat power-on, or to [INIT RSP] to set the response calibration at power-on.

CANCEL<2> Press the

CANCEL

ENTER

ENTER

ENTER

<3> Press therespectively.

CANCEL<4> Press the

key to display the Select box.

andkeys to move the cursor to “ON” or ”OFF” to set “on” or “off”,

ENTER

ENTER

key to apply the setting, or press the

4-73

CANCEL

key to cancel the setting.

BP4640/BP4650

4.9

System Menu

4.9.7 Setting of external control input enable/disable
Set external control input enable/disable. If external control input is disabled, the status of this productis output.
refer to “2.4.4 Connection to external control
For details on external control input,
input/output connector”.

 Operation procedureand<1> Press the

CANCEL<2> Press the

CANCELkeys to move the cursor to [EXT CONTROL].

ENTER

ENTER

key to display the Select box.

ENTER

<3> Press theandkeys to move the cursor to “ENABLE” or to” DISABLE” torespectively enable or disable external control input.

CANCEL<4> Press the

ENTER

ENTER

key to apply the setting, or press the

4-74

CANCEL

key to cancel the setting.

BP4640/BP4650

4.9

System Menu

4.9.8 Reset function
The reset function returns the basic settings to the factory settings.
This product cannot be reset when output is on. Reset this product in the output off status.
refer to “9. INITIAL SETTING LIST”.
For the setting values after reset,

 Operation procedureand<1> Press the

CANCEL<2> Press the

CANCEL<3> Press thekeys to move the cursor to [RESET...].

ENTER

ENTER

key to display the Exe box.

ENTER

ENTER

key while [EXEC] is selected to reset this product.

4.9.9 System information
The firmware version number and other system information can be displayed by selecting[INFORMATION] on the [SYSTEM] screen.
refer to “7.4 Version Number Verification Method”.
For how to display system information,

4-75

BP4640/BP4650

4.10

Response Calibration

4.10 Response Calibration
4.10.1 Outline
This product has a response calibration function that allows individual optimization of transient
response characteristics during square wave output or sudden output changes.
The transient response varies with the load for loads that have complex impedance characteristics suchas electromagnetic parts that include inductance (coil components) or capacitance (capacitor
components). This product allows the user to adjust the response characteristics according to the load.
The response characteristics of the amplifier can be selected from the following two types.
 Fixed characteristics
 Adjusted characteristics
Switch between fixed and adjusted characteristics in the output off status. Switching in the output on
status is not possible.

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4.10

Response Calibration

4.10.2 Fixed characteristics
The fixed characteristics emphasize both wide frequency band characteristics and load stability (during
CV: DC to 35 kHz, 3 dB; during CC: DC to 8 kHz, 3 dB).

 Operation procedureand<1> Press the

CANCEL<2> Press the

CANCEL<4> Press the

icon.

ENTER

ENTER

key to display the Select box.

ENTER

<3> Press the

CANCELkeys to move the cursor to theandkeys to move the cursor to “OFF”.

ENTER

ENTER

key to set the response calibrator to off.

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BP4640/BP4650

4.10

Response Calibration

4.10.3 Adjustment characteristics
The user can adjust the response characteristics for the load to be actually used.
Through adjustment, it is possible to minimize distortion of the output waveform for a broad range ofload conditions including the resistance load as well as inductive load and capacitive load. Adjustment
to lower speed and higher speed compared to fixed characteristics is possible.
Adjustment is performed by moving three adjustment knobs corresponding to the time constant, voltage
feedback amount, and current feedback amount, while observing the output voltage and output current
waveform with an external oscilloscope. The loop characteristics of the amplifier can be changed withthese three adjustment knobs, and the output impedance characteristics changed by an equivalentamount. As a result, distortion of output waveform can be minimized for a broad range of loadconditions.

 Operation procedure<1> Switch off the output.
<2> To be able to observe the output voltage waveform and output current waveform, connect anexternal oscilloscope and the voltage/current monitor terminals (MONITOR OUT) with a
BNC cable.
<3> Adjust each volume of the response calibration (RESPONSE CAL) as shown in step <4>.
T volume: Adjusts the time constant.
V volume: Adjusts the voltage feedback amount.
I volume: Adjusts the current feedback amount.

MONITOR OUT terminalRESPONSE CAL volume

4-78

BP4640/BP4650

4.10

Response Calibration<4> Check that each volume is turned to the left-most position. (A click can be heard when thevolume reaches the left-most position.)<5> Connect the load.

and<6> Press the

CANCEL<7> Press the

CANCEL

icon.

ENTER

ENTER

key to display the Select box.

ENTER

<8> Press the

CANCELkeys to move the cursor to theandkeys to move the cursor to “ON”.

ENTER

4-79

BP4640/BP4650

4.10

Response Calibration

ENTER<9> Press the
key to switch on the response calibrator.
The [Adjusted characteristics] can be selected through the above operation.
<10>

Select SQU (square wave) as the waveform to be output.
refer to “4.3.6 Setting of waveform”.
For the waveform setting procedure,<11>

Switch on the output.
For the output on switching procedure,

<12>

！



refer to “4.3.2 Output on/off”.

Adjust the three adjustment knobs towards the rear of the operation panel while observing
the waveform with an external oscilloscope.

CAUTION

The response characteristics can be improved using the adjustment knobs, but an unstable status(oscillation status) may also result depending on how the adjustment is performed according to
the load conditions (including no-load). Therefore, when using adjustment characteristics, makesure that the adjustment knobs are set to their slowest and most stable settings on the left
(counterclockwise) before using an external oscilloscope for waveform monitoring and before
adjustment.

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4.10

Response Calibration

4.10.4 Adjustment example
Generally, the capacitive load in the CV mode and the inductive load in the CC mode each form aresonance circuit combined with the output impedance, resulting in a status in which oscillations areeasily generated.
Adjustment examples for the CV mode/capacitive load and CC mode/inductive load are presented
below.
(1)

CV mode/capacitive load
Basically, both T and V are adjusted with their respective adjustment knobs.
While turning the I adjustment knob toward the right lowers the ringing frequency, making iteasier to suppress ringing with the V adjustment knob, normally the this product is used with the I
adjustment knob turned all the way toward the left.
The operations when each adjustment knob is turned are described below.
 If T adjustment knob is turned to the right
The rise/fall become faster, but the ringing frequency also rises, and its amplitude increases.
 If V adjustment knob is turned to the right
The ringing amplitude is decreased, but the rise/fall become slower.
To make the rise/fall as fast as possible and suppressing ringing, perform adjustments by repeating
the following operation.
<1> Speed up the rise/fall with the T adjustment knob.
<2> Suppress ringing when it occurs with the V adjustment knob.

(2) CC mode/inductive load
Basically, adjustments can be performed with the T and I adjustment knobs.
Turning the V adjustment knob to the right lowers the ringing frequency and makes it easier tosuppress ringing with the I adjustment knob, but normally this product is used with the V
adjustment knob turned all the way to the left.
The operations when the adjustment knobs are turned are described below.
 If T adjustment knob is turned to the right
The rise/fall become faster, but the ringing frequency also rises, and its amplitude increases.
 If I adjustment knob is turned to the right
The ringing amplitude is decreased but the rise/fall become slower.
To make the rise/fall as fast as possible and suppress ringing, perform adjustments by repeating
the following operations.
<1> Speed up the rise/fall with the T adjustment knob.
<2> Suppress ringing when it occurs with the I adjustment knob.

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BP4640/BP4650

4.11

External Signal Input

4.11 External Signal Input
This product can also be used as a high-speed bipolar amplifier to which an external signal is input.
It is also possible to perform output by adding the signal of an internal signal source to an externalsignal input.
To use a signal input from external as the signal source, connect this signal to the external signal input
terminal (EXT SIGNAL IN) on the front panel. For this connection, use a coaxial cable with a BNC
connector.
refer to “4.3.1 Setting of operation mode”.
For the signal source settings,
The specifications of the external signal input terminal are as follows.
Frequency range:
Gain:

Gain accuracy:

DC to 200 kHz
100 (100 V/1 V), in-phase (CV mode)40 (40 A/1 V), in-phase (BP4640, CC mode)50 (50 A/1 V), in-phase (BP4650, CC mode)5 %（1 kHz）

Input impedance:
Non-destructive max. input voltage:

10 k5V

EXT SIGNAL IN terminal

Figure 4-23.

EXT SIGNAL IN Terminal

4-82

BP4640/BP4650

4.12

Voltage and Current Monitor

4.12 Voltage and Current Monitor
To monitor the output voltage and output current, use the monitor output terminal (MONITOR OUT) on
the front panel. For the connection, use a coaxial cable with a BNC connector. To monitor the output
voltage, perform connection to the Vo terminal, and to monitor the output current, perform connection
to the Io terminal.
The specifications of the monitor output terminal are as follows.

 Output voltage monitor output
Monitor ratio:
Monitor accuracy:
Frequency characteristics:

Output impedance:

1/100 of output voltage (1 V/100 V), in-phase1.2 V of output voltage (1 Mmonitor output load impedance)
DC to 40 kHz:
0.5 dB
40 kHz to 400 kHz: +1 dB, 3 dB(1 kHz reference, 1 Mmonitor output load impedance)50  Output current monitor output
Monitor ratio:
Monitor accuracy:

Frequency characteristics:

Output impedance:

1/40 of output current (1 V/40 A), in-phase (BP4640)
1/50 of output current (1 V/50 A), in-phase (BP4650)
0.8 A of output current (BP4640)
1 A of output current (BP4650)(1 Mmonitor output load impedance)
DC to 20 kHz:
0.5 dB
20 kHz to 200 kHz: +1 dB, 3 dB(1 kHz reference, 1 Mmonitor output load impedance)
50 

MONITOR OUT terminals

Figure 4-24.

MONITOR OUT Terminal

4-83BP4640/BP4650

4.13

Measurement Function

4.13 Measurement Function
This product has a function for measuring the output voltage and output current (DC value and P-P
value of each). Since the measured values are displayed in the LCD’s measurement value window, theoutput status can be monitored.
refer to “8.6 Measurement Function”.)(

Figure 4-25.

Measurement Value Display Example

If measurement over-range occurs, “-----” is displayed in the numerical value field.

4-84BP4640/BP4650

5. USB INTERFACE
5.1 Preparations Before Usage ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-2
5.2 Program Message List ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-3
5.3 Explanation of Each Program Messageꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-9
5.3.1 Basic settings ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-9
5.3.2 Limiter ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-11
5.3.3 Sequence Related ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-12
5.3.4 Measurement related ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-16
5.3.5 Arbitrary waveform memory ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-16
5.3.6 Store/recall memory ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-17
5.3.7 Status reporting ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-18
5.3.8 Overlap commands ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-20
5.3.9 Other ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-21
5.4 Status Configurationꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-23
5.4.1 Status byte ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-23
5.4.2 Standard event statuses ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-24
5.4.3 Message queueꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-24
5.4.4 Operation statuses ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-25
5.4.5 Warning statuses ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-26
5.4.6 Overload statuses ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-27
5.5 Response to Interface Messages ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-28
5.6 Programming Cautions ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 5-28

5-1

BP4640/BP4650

5.1

Preparations Before Usage

5.1 Preparations Before Usage
This product is provided with remote interfaces and is remote-controllable by a computer. The remotecontrol allows almost all the operations performed on the control panel. In addition, it can read theinternal state such as setting values and errors.
Prepare a personal computer equipped with the USB interface when using the USB interface. Install theUSBTMC driver or USB488 driver in the computer. Using USBTMC is recommended in this product.
The USB connector is located on the rear panel. USB is an interface that assumes use in a relatively
favorable environment. Use of this interface in a place with current fluctuations or high noise levelshould be avoided. Also, to reduce radiowave leakage in the USB cable, attach the accompanying ferritecore.

 USBTMC
Normally, USBTMC driver can be executed through the USB as same control as GPIB. This driver is
included in the hardware or software products of respective companies that supply the VISA library. The
user who does not have the license of VISA library must get it additionally.
VISA: Virtual Instrument software Architecture
Refer to “4.8.2.1 USBTMC”.
 USB ID checking
 The USB ID is represented in the following format.
USB0::[Vendor number]::[Product number]::[Serial number]::INSTR
Vendor number: Fixed to 3402 (0x0D4A)
Product number: Fixed to 83 (0x0052), BP4640
Fixed to 84 (0x0054), BP4650
Serial number:
A unique number (serial number) has been set for each product.

 USB488
Refer to “4.8.2.2 USB 488”.
 USB ID setting The USB488 driver can be downloaded from the NF website (http://www.nfcorp.co.jp/).
 Set the USB ID after making sure it is correct. If the USB ID is incorrect, control from the computeris not possible. Moreover, if the USB ID is the same as that of another device within the same system,
faults may occur in the computer.
 Windows Vista or later is not supported.

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BP4640/BP4650

5.2

Program Message List

5.2 Program Message List
 Program messages
 The data (programming messages) that can be used for programming is ASCII data (hexadecimal:
20 to 7F), except for arbitrary waveform data blocks. Arbitrary waveform data consists of binary
data blocks.
 During reception of program messages by this product, no distinction is made between uppercase
and lowercase.
 Response messages are in uppercase.
 When transmitting multiple program messages in succession, insert a “;” (semicolon) as adelimiter between program messages. A space can also be inserted before and after each semicolonfor even greater reading ease.
 Insert one or more spaces between the header and parameters of set program messages.

 Input buffer Program messages can be sent in batch up to the input buffer capacity (10,000 characters).
 The transmitted program messages are stored in the input buffer and are then interpreted andexecuted in the order in which they have been saved.
 If, during interpreting and execution, an illegal program message is discovered, the execution ofthis and subsequent program messages stops.
 When interpreting and execution are completed, the input buffer is cleared and the next program
messages can be input.
The USB program messages of this product are indicated below.
Outline of program messages
Refer to “Table 5-1 Basic Settings” and “Table 5-9 Other”.
Details (in alphabetical order for each function)
Refer to “5.3 Explanation of Each Program Message”.

5-3

BP4640/BP4650

5.2

Program Message List

Table 5-1. Basic Settings
HeaderMODE

FunctionMax. Value

0:

CV-INT

1:

CV-EXT

2: CV-ADD

Function mode

3:

CC-INT

Min. Value

Resolution

Setting

Query

5

0

1





1

0

1





1

0

1





115.00115.00

0.01





120.0

0.0

0.1





0.01





0.0

0.1





100000.0

1.0

0.1





17

0

1





Resolution

Setting

Query

0.1





0.1





1





1





4: CC-EXT
5:

CC-ADD

0:

Off

OUTP

Output on/off

1:

On

RCAL

Response calibrator
0:
on/off
1:
DC voltage

On

VOLT
ACVL

Off

Superimposed AC voltage
Output current

40.00 (BP4640) 40.00 (BP4640)

CURR

50.00 (BP4650) 50.00 (BP4650)
Superimposed AC current

120.0 (BP4640)

ACCU
FREQ

WAVE

150.0 (BP4650)
Superimposed AC frequency

Superimposed
waveform

0:

SIN

AC 1:

SQU

2 to 17:
ARB1 to ARB16

Table 5-2.
Header
LMVP
LMVM

Function+ voltage limiter voltage limiter+ current limiter

LMCP current limiter
LMCM

Limiters

Max. Value

Min. Value

117.0

7.0

7.0

117.0104 (BP4640)

4.0 (BP4640)

130 (BP4650)

5.0 (BP4650)

4.0 (BP4640)

104 (BP4640)

5.0 (BP4650)

130 (BP4650)

5-4

BP4640/BP4650

5.2

Program Message List

Table 5-3. Sequence Related(1/2)
HeaderFunction

SLEN?

Specifies sequence length

STPN

Specifies step number

Max. Value Min. Value
Fixed to 255
255
1st parameter3rd parameter

Superimposed

1

AC

type
0: CONST/1: KEEP/2: SWEEP
Frequency
Frequency operation type
0: CONST/1: KEEP/2: SWEEP
Waveform
2 to 17: ARB1 to ARB16

5th parameter6th parameter7th parameter

Waveform operation type
0: CONST/1: KEEP

8th parameter

Setting

Query









































































voltage/superimposed AC current operation

4th parameter

Step execution parameters

1

DC voltage/DC current
DC voltage/DC current operation type
0: CONST/1: KEEP/2: SWEEP
Superimposed
AC
voltage/superimposed AC current

2nd parameter

SEXP

Resolution

Step sync output
9th parameter

0: (0,0)/1: (0,1)/
2: (1,0)/3: (1,1)
Step sync output operation type
0: CONST/1: KEEP
Step time mode
Fixed to 0
Step time
Step end phase enable/disable
0: Disable/1: Enable
Step end phase
Fixed to 0 deg

10th parameter
1st parameter2nd parameter3rd parameter4th parameter
STRP

Step transition parameters

Step termination
0: Continue sequence

5th parameter

1: Enter Idle status
2: Enter Hold status
Jump step
6th parameter

0: Go to next step number
1 to 255: Step number

5-5BP4640/BP4650

5.2

Program Message List
(2/2)

HeaderFunctionMax. Value Min. Value

Resolution

Setting

Query













Jump count
7th parameter0:

Infinite count1 to 999:

Specified countBranch 0
STRP

8th parameter

Step transition parameters0:

Branch disabled

1 to 255:

Step number

Branch 1
9th parameter

SCTL

SSTS?

Sequence control

Sequence status

0:

Stop

1:

Start

2:

Hold

3:

Branch 0

4:

Branch 1

0:

Idle status

1:

Run status

2:

Hold status0:

Branch disabled

1 to 255:

Step number

4

0

1





2

0

1





SCSN?

Acquires step number during execution

255

1

1





SCJN?

Acquires jump count of specified step number

999

1

1





SEQM

Sequence memory control

0

0

1





0:

Clear

-------- Comment ---------------------------------------------------------------------------------------------------------- SCSN? return value –1 indicates that the sequence status is Idle. 0 is an unused number.
 SCJN? return value –1 indicates that the sequence status is Idle.
--------------------------------------------------------------------------------------------------------------------------------Table 5-4. Measurement Related
HeaderFunction

MVLT?

DC voltage measurement value

MACV? AC voltage measurement value

MCUR?

DC current measurement value

Max. Value
200.0

Min. Value200.0[999.9]
400
[999]

0

80.0 (BP4640)

80.0 (BP4640)

100.0 (BP4650)

100.0 (BP4650)[99.9 (BP4640)]

Resolution

Setting

Query

0.1





1





0.1





1





[999.9 (BP4650)]
160 (BP4640)
MACC?

AC current measurement value

200 (BP4650)

0

[999]

-------- Comment ---------------------------------------------------------------------------------------------------------- The figures in parentheses [ ] are the values of response messages when measurement
over-range occurs.
---------------------------------------------------------------------------------------------------------------------------------

5-6

BP4640/BP4650

5.2

Program Message List

Table 5-5.
HeaderArbitrary Waveform Memory

FunctionMax. Value Min. Value

ARBNSpecifies transmit/receive arbitrary waveform
memory

ARBT

Arbitrary waveform transmission/reception

ARBM

Arbitrary waveform memory 0:
control

Resolution

Setting

Query

1





[Data] … … …
Data is in 2’s complement format.









17

2

#42048

Clear

0

0

1

-------- Comment ---------------------------------------------------------------------------------------------------------- Partial reading of an arbitrary waveform is not possible.
 When arbitrary waveforms are cleared, sine waves, square waves, and triangular waves are written to
ARB1 to ARB8, ARB9 to ARB12, and ARB13 to ARB16, respectively--------------------------------------------------------------------------------------------------------------------------------Table 5-6. Memory
Header*SAV*RCL

FunctionMax. Value Min. ValueStore memory
Recall memory

Resolution

Setting

Query

30

1

1





30

1

1





Resolution

Setting

Query

Table 5-7. Status Reporting
HeaderFunctionMax. Value Min. Value*STB?

Status byte

255

0

1





*SRE

SRQ enable register

255

0

1





*ESR?

Standard event status register

255

0

1





*ESE

Standard event status enable register

255

0

1





OPCR?

Operation condition register

32767

0

1





OPTF

Operation transition filter

32767

0

1





OPER?

Operation event register

32767

0

1





OPEE

Operation event enable register

32767

0

1





WRER?

Warning event register

32767

0

1





WREE

Warning event enable register

32767

0

1





OVCR?

Overload condition register

32767

0

1





OVTF

Overload transition filter

32767

0

1





OVER?

Overload event register

32767

0

1





OVEE

Overload event enable register

32767

0

1





*CLS

Event register content clear











5-7

BP4640/BP4650

5.2

Program Message List

Table 5-8. Overlap Command
HeaderFunctionMax. Value Min. Value Resolution

Setting

Query

When the device operation had ended, an operation*OPC

complete message in the standard event status











1

1

1















SettingQueryregister is output to the device.
*OPC?

Upon completion of the device operation, 1 isreturned.
Until the device operation is completed, the device*WAI

prohibits further commands or clearing from being
executed.

Table 5-9. Other
HeaderFunction

BEEP

Beep

HEAD

Header

IOUT

Output on/off at power-on

IRSP
XCTL
*RST

0:

Off

1:

On

0:

Off

1:

On

0:

Off

1:

On

Response calibrator on/off at

0:

Off

power-on1:

On

External control input0:

Disableenable/disable

1:

EnableDevice reset
Self test*TST?

Max. Value Min. Value Resolution

Returns self-diagnosis resultat power-on

0:

No errorOther than 0: Error

1

0

1





1

0

1





1

0

1





1

0

1





1

0

1















444

0

1













NF Corporation, model name, serial*IDN?

number, version number

Model name query

Example of BP4640:

NF

Corporation, BP4640, 0000001, 3.00
VERS?

Version number query

Example:

5-8

3.00

BP4640/BP4650

5.3

Explanation of Each Program Message

5.3 Explanation of Each Program Message
The details of the program messages are described below. Commands are listed in alphabetical order.

5.3.1 Basic settings
 ACCU/ACCU?
Description:
Parameter:
Setting example:
Caution:Sets the superimposed AC current.
Current [Ap-p]
Refer to “Table 5-1 Basic Settings” for setting range.
Setting the superimposed AC current to 20.0 Ap-p
ACCU 20
Settable in units of 0.1 Ap-p.

 ACVL/ACVL?
Description:
Parameter:
Setting example:
Caution:Sets the superimposed AC voltage.
Voltage [Vp-p]
0.0 Vp-p to 120.0 Vp-p
Setting the superimposed AC voltage to 100 Vp-p
ACVL 100
Settable in units of 0.1 Vp-p.

 CURR/CURR?
Description:
Parameter:
Setting example:
Caution:Sets the DC current.
Current [A]Refer to “Table 5-1 Basic Settings” for setting range.
Setting the DC current to 5.00 A
CURR 5
Settable in units of 0.01 A.

 FREQ/FREQ?
Description:
Parameter:
Setting example:
Caution:Sets the superimposed AC frequency.
Frequency [Hz]1.0 Hz to 100000.0 Hz
Setting the superimposed AC frequency to 70000 Hz
FREQ 70000
Settable in units of 0.1 Hz.

5-9

BP4640/BP4650

5.3

Explanation of Each Program Message

 MODE/MODE?
Description:
Parameter:

Setting example:
Caution:Sets the operation mode.
0: CV-INT
1: CV-EXT
2: CV-ADD
3: CC-INT
4: CC-EXT
5: CC-ADD
Setting the CC-INT mode.
MODE 3
Setting cannot be performed when the output is on.

 OUTP/OUTP?
Description:
Parameter:
Setting example:

Switches the output on/off.
0: Output off
1: Output on
Setting the output on
OUTP 1

 RCAL/RCAL?
Description:
Parameter:
Setting example:
Caution:Sets the response calibrator on/off.
0: Response calibrator off
1: Response calibrator on
Setting the response calibrator on
RCAL 1
Setting cannot be performed when the output is on.

 VOLT/VOLT?
Description:
Parameter:
Setting example:
Caution:Sets the DC voltage.
Voltage [V]115.00 V to 115.00 V
Setting the output voltage to 90 V
VOLT 90
Settable in units of 0.01 V.

5-10

BP4640/BP4650

5.3

Explanation of Each Program Message

 WAVE/WAVE?
Description:
Parameter:

Setting example:
Caution:Selects the superimposed current waveform.
0: SIN (sine wave)
1: SQU (square wave)
2 to 17: ARB1 to ARB16 (arbitrary waveform)
Setting the waveform to be output to sine wave
WAVE 0Setting cannot be performed when output is on.

5.3.2 Limiter
 LMCM/LMCM?
Description:
Parameter:
Setting example:
Caution:Sets the  current limiter.
Current [A]Refer to “Table 5-2 Limiters” for setting range.
Setting the – current limiter to 15 A
LMCM 15
Settable in units of 0.1 A

 LMCP/LMCP?
Description:
Parameter:
Setting example:
Caution:Sets the + current limiter.
Current [A]Refer to “Table 5-2 Limiters” for setting range.
Setting the + current limiter to 15 A
LMCP 15
Settable in units of 0.1 A

 LMVM/LMVM?
Description:
Parameter:
Setting example:
Caution:Sets the – voltage limiter.
Voltage [V]117.0 V to 7.0 V
Setting the – voltage limiter to –100 V
LMVM 100
Settable in units of 0.1 A

 LMVP/LMVP?
Description:
Parameter:
Setting example:
Caution:Sets the + voltage limiter.
Voltage [V]
7.0 V to 117.0 V
Setting the + voltage limiter to 100 V
LMVP 100
Settable in units of 0.1 V

5-11

BP4640/BP4650

5.3

Explanation of Each Program Message

5.3.3 Sequence Related
For the sequence settings,

refer to “4.5 Sequence Operation”.

 SCJN?
Description:
Response format:
Caution:Acquires the jump count executed in the step specified with STPN.
1 to 999
1 indicates the Idle status.

 SCSN?
Description:
Response format:
Caution:Acquires the number of the step under execution.
1 to 255
1 indicates the Idle status.

 SCTL
Description:
Parameter:

Setting example:

Controls the sequence.
0: Sequence stop
1: Sequence start
2: Sequence hold
3: Sequence branch 0
4: Sequence branch 1
Starting a sequence
SCTL 1 SEQM
Description:
Parameter:
Setting example:

Controls the sequence memory.
0: Clear
Clears the sequence memory.
SEQM 0

5-12

BP4640/BP4650

5.3
 SEXP/SEXP?
Description:
Parameter:

Setting example:

Table 5-10.

Explanation of Each Program Message

Sets the step execution parameters.
1st parameter: Sets the DC voltage/DC current.
The DC voltage can be set in units of 0.01 V in the range of 115.00 V to115.00 V.
The DC current can be set in units of 0.01 A in the range of Table 5-10.
2nd parameter: Sets the DC voltage/DC current operation type.
0: CONST/1: KEEP/2: SWEEP
3rd parameter: Sets the superimposed AC voltage/superimposed AC current.
The AC voltage can be set in units of 0.1 Vp-p in the range of 0.0 Vp-p to
120.0 Vp-p.
The AC current can be set in units of 0.1 Ap-p in the range of Table 5-10.
4th parameter: Sets the superimposed AC voltage/superimposed AC current
operation type.
0: CONST/1: KEEP/2: SWEEP
5th parameter: Sets the frequency.
The frequency can be set in units of 0.1 Hz in the range of 1.0 Hz to
100000.0 Hz.
6th parameter: Sets the frequency operation type.
0: CONST/1: KEEP/2: SWEEP
7th parameter: Sets the waveform.
2 to 17: ARB1 to ARB16
8th parameter: Sets the waveform operation type.
0: CONST/1: KEEP
9th parameter: Sets the step sync output.
0: (0,0)/1: (0,1)/2: (1,0)/3: (1,1)
10th parameter: Sets the step sync output operation type.
0: CONST/1: KEEP
Setting of DC voltage to 10 V, SWEEP, AC voltage to 5 Vp-p superimposed,
KEEP, frequency to 20 Hz, KEEP, waveform to ARB3, CONST, step sync
output to (0,0), KEEPSEXP 10, 2, 5, 1, 20, 1, 4, 0, 0, 1
DC Current And Superimposed AC Current Setting Ranges

ItemBP4640BP4650DC current-40.00 to 40.00 A-50.00 to 50.00 A

Superimposed AC current

0.0 to 120.0 Ap-p

0.0 to 150.0 Ap-p

 SLEN?
Description:
Parameter:

Returns the sequence length.
255, fixed

5-13

BP4640/BP4650

5.3

Explanation of Each Program Message

 SSTS?
Description:
Response format:

Returns the sequence status.
0: Idle status
1: Run status
2: Hold status STPN/STPN?
Description:
Parameter:
Setting example:

 STRP/STRP?
Description:
Parameter:

Setting example:

Specifies the step number.
1 to 255
Specifying the step number to be set as 7
STPN 7

Sets the step transition parameter.
1st parameter:0, fixed
2nd parameter: Sets the step time.
The step time is set in units of 1 s.
3rd parameter: Sets step end phase (0 deg) enable/disable.
0: Disable
1: Enable
4th parameter: Sets the step end phase.
0 deg, fixed
5th parameter: Sets the step termination.
0: Continue sequence
1: Enter Idle status
2: Enter Hold status
6th parameter: Sets the jump step number.
0:Jump to the next step number.
1 to 255: Jump to the specified step number.
7th parameter: Sets the jump count.
0:
Infinite number of jumps
1 to 999: Specified number of jumps
8th parameter: Sets branch 0.
0:
Disable branching.
1 to 255: Jump to the specified step number.
9th parameter: Specifies branch 1.
0:
Disable branching.
1 to 255: Jump to the specified step number.
Setting of step time to 2 s, step end phase to disable, continuation ofsequence and jump to next step at step end, jump count to 1, branch todisable
STRP 0, 2, 0, 0, 0, 0, 1, 0, 0

5-14

BP4640/BP4650

5.3

Explanation of Each Program Message

 Example of sequence programming using program messages
An example of programming that sets the sequence transitions shown in Figure 4-20 using USB
program messages is described below.
STPN
SEXP
STRP
STPN
SEXP
STRP
STPN
SEXP
STRP
STPN
SEXP
STRP
STPN
SEXP
STRP
STPN
SEXP
STRP

1
2.5, 2, 0,0, 0.1, 0,
2
7.5, 1, 0,
0, 0.2, 0,
3
7.5, 0, 0,
0, 0.1, 0,
4
5, 2, 0,0, 0.2, 0,
5
10, 2, 0,0, 0.2, 0,
60, 2, 0,0, 0.3, 0,

0,
0,

0,
0,

0,
0,

2,
0,

0,
0,

0,
0

0

0,
0,

0,
0,

0,
0,

2,
0,

0,
0,

0,
0

0

0,
0,

0,
0,

0,
0,

2,
0,

0,
0,

0,
0

0

0,
0,

0,
0,

0,
2,

2,
1,

0,
0,

0,
0

0

0,
0,

0,
0

0,
0,

2,
0,

0,
6,

0,
0

0

0,
0,

0,
1,

0,
0,

2,
0,

0,
0,

0,
0

0

5-15

BP4640/BP4650

5.3

Explanation of Each Program Message

5.3.4 Measurement related
 MACC?
Description:
Response format:
Caution:Returns the AC current measurement value.
Refer to “Table 5-4 Measurement Related” for response range andresponse value when measurement over-range occurs.
Measurement is performed in units of 0.1 Ap-p.

 MACV?
Description:
Response format:
Caution:Returns the AC voltage measurement value.
0 Vp-p to 400 Vp-p (999 Vp-p is returned in the case of measurement
over-range)
Measurement is performed in units of 1 Vp-p.

MCUR?
Description:
Response format:
Caution:Returns the DC current measurement value.
Refer to “Table 5-4 Measurement Related” for response range andresponse value when measurement over-range occurs.
Measurement is performed in units of 0.1 A.

MVLT? Description:
Response format:
Caution:Returns to the DC voltage measurement value.
200.0 V to 200.0 V (999.9 V is returned in the case of measurement
over-range)
Measurement is performed in units of 0.1 V.

5.3.5 Arbitrary waveform memory
The settings performed with ARBM and ARBT are done for the arbitrary waveform memory specified
with ARBN. If no specification is made with ARBN, arbitrary waveform memory 2 is used as thedefault. To control the arbitrary waveform saved to another memory, first specify the memory number
with ARBN.

 ARBM
Description:
Parameter:
Setting example:

Controls arbitrary waveform memory.
0: Clear
Clears arbitrary waveform.
ARBM 05-16

BP4640/BP4650

5.3

Explanation of Each Program Message

 ARBN/ARBN?
Description:
Parameter:
Setting example:
Caution:Specifies the memory number to be transferred and the memory number tobe cleared.
2 to 17
Specifying arbitrary waveform memory 6
ARBN 6
An error occurs if 0, 1 is set to the parameter.
Note that since a waveform can also be specified during output, output isperformed even during arbitrary waveform rewrite.

 ARBT/ARBT?
Description:
Parameter:
Setting example:

Transmits/receives arbitrary waveform.
#42048
Data is in the 2’s complement format (1024 words, 2048 bytes)
1) ARBT #42048
2) [higher byte of data 0][lower byte of data 0][higher byte of data
1][lower byte of data 1]……[lower byte of data 1023]
Refer to “5.6 Programming Cautions”.

5.3.6 Store/recall memory
 *RCL
Description:
Parameter:
Setting example:
Caution:Reads the settings.
1 to 30
Reading the contents of store/recall memory 5*RCL 5This operation cannot be performed during output on.

 *SAV
Description:
Parameter:
Setting example:

Saves the settings.
1 to 30
Saving settings to store/recall memory 5*SAV 5

5-17

BP4640/BP4650

5.3

Explanation of Each Program Message

5.3.7 Status reporting *CLS
Description:

Clears the contents of the event register.

 *ESE/*ESE?
Description:
Parameter:

Standard event status enable register
Refer to “5.4.2 Standard event statuses”.
0 to 255

 *ESR?
Description:
Response format:

Standard event status register
Refer to”5.4.2 Standard event statuses”.
0 to 255

 OPCR?
Description:
Response format:

Operation condition register
Refer to “5.4.4 Operation statuses”.
0 to 32767

 OPEE/OPEE?
Description:
Parameter:

Operation event enable register
Refer to “5.4.4 Operation statuses”.
0 to 32767

 OPER?
Description:
Response format:

Operation event register
Refer to “5.4.4 Operation statuses”.
0 to 32767

 OPTF/OPTF?
Description:
Parameter:

Operation transition filter
Refer to “5.4.4 Operation statuses”.
0 to 32767

5-18

BP4640/BP4650

5.3

Explanation of Each Program Message

 OVCR?
Description:
Response format:

Overload condition register
Refer to “5.4.6 Overload statuses”.
0 to 32767

 OVEE/OVEE?
Description:
Parameter:

Overload event enable register.
Refer to “5.4.6 Overload statuses”.
0 to 32767

 OVER?
Description:
Response format:

Overload event register
Refer to “5.4.6 Overload statuses”.
0 to 32767

 OVTF/OVTF?
Description:
Parameter:

Overload transition filter
Refer to “5.4.6 Overload statuses”.
0 to 32767

 *SRE/*SRE?
Description:
Parameter:

SRQ enable register
Refer to “5.4.1 Status byte”.
0 to 255

 *STB?
Description:
Response format:

Status byte
Refer to “5.4.1 Status byte”.
0 to 255

 WREE/WREE?
Description:
Parameter:

Warning event enable register
Refer to “5.4.5 Warning statuses”.
0 to 32767

 WRER?
Description:
Response format:

Warning event register
Refer to “5.4.5 Warning statuses”.
0 to 32767

5-19

BP4640/BP4650

5.3

Explanation of Each Program Message

5.3.8 Overlap commands
Here, device operations refer to the following items.
 MODE:
Operation mode switching OUTP:
Output on/off switching *RCL:
Setting read
 *RST:
Device reset SCTL 1:
Sequence execution

 *OPC
Description:

Upon completion of the device operation, the operation complete message in thestandard event status register is output to the device.

 *OPC?
Description:

Upon completion of the device operation, 1 is returned.

 *WAI
Description:

Until the device operation is completed, the device is prohibited from further
executing commands or clearing.

5-20

BP4640/BP4650

5.3

Explanation of Each Program Message

5.3.9 Other BEEP/BEEP?
Description:
Parameter:
Setting example:

Sets the beep sound on/off.
0: Off
1: On
Setting beep sound on
BEEP 1 HEAD/HEAD?
Description:
Parameter:
Setting example:

Setting header on/off
0: Off
1: On
Setting header on
HEAD 1

 *IDN?
Description:
Response format:

Queries the model number.
“NF Corporation, model name, serial number, version number”
Example of BP4640: NF Corporation, BP4640, 0000001, 3.00

 IOUT/IOUT?
Description:
Parameter:
Setting example:

Sets output on/off at power-on.
0: Off
1: On
Setting the output on at power-on
IOUT 1

 IRSP/IRSP?
Description:
Parameter:
Setting example:

Sets the response calibrator on/off at power-on.
0: Off
1: On
Sets the response calibrator on at power-on.
IRSP 1

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5.3

Explanation of Each Program Message■ *RST
Description:
Caution:Resets the device.
This operation cannot be performed while output is on.
Refer to 9 “INITIAL SETTING LIST”.

■ *TST?
Description:

Response format:

Self test. Self-diagnosis result is returned at power-on.
The diagnosis result is returned as 16-bit data. The higher 7 bits, Bit 6, andlower 2 bits are fixed to 0, so judge errors based on the values of bits
excluding the above-mentioned.
0: No error
Other than 0: Error occurrence
Bit 8: The backup, waveform, and sequence memories have been
initialized due to version upgrade.
Bit 7: Not calibrated or initialized without calibration value.
Bit 5: Calibration defect or initialized without calibration value.
Bit 4: Initialized due to sequence memory defectBit 3: Initialized due to waveform memory defectBit 2: Initialized due to backup memory defect■ VERS?
Description:
Response example:

Queries the version number.
3.00■ XCTL/XCTL?
Description:
Parameter:
Setting example:

Sets external control input enable/disable.
0: Disable
1: Enable
Enabling external control input
XCTL 1

5-22

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5.4

Status Configuration

5.4 Status Configuration
5.4.1 Status byte
Overload status summary
Warning status summary
Unused (always 0)
Unused (always 0)
Message queue summary
Standard event status summary
Operation status summary

Servicerequestgeneration

OPR
DI08

6

ESB
DI06

MAV
DI05

3
DI04

2
DI03

WAR
DI02

OVR
DI01

MSS
DI07

Status byte register

Read through*STB? common
query

Logic OR

&

&
&
&
&
&
&
7

5

4

5-23

3

2

1

0

Service request
enable register*SRE common
command *SRE?
common query

BP4640/BP4650

5.4

Status Configuration

5.4.2 Standard event statuses*ESR? (standard event register)Power on (PON)

7

7

User request (URQ)66Command error (CME)55

Execution error (EXE)44

Device-specific error (DDE)33

Query error (QYE)

2

2

Request control (RQC)

1

1

Operation completion (OPC)00

Logic OR

*ESE (standard event enable register)Standard event status summary
Status byte (bit 5)

5.4.3 Message queue
Message queue

Queue notempty

Message queue summary
Status byte (bit 4)

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5.4

Status Configuration

5.4.4 Operation statuses
OPCR? (operation condition register)

Always 0

15

15

15

15

Sequence execution in progress

14

14

14

14

Unused

13

13

13

13

Sequence hold in progress

12

12

12

12

Unused

11

11

11

11

Unused

10

10

10

10

Unused9999Unused8888Unused77

7

7Unused66

6

6

Unused5555Unused44

4

4Unused3

3

3

3

Unused
MODE, OUTP, *RCL, *RSTIn progress

2

2

2

2

1

1

1

1

Unused0000

Logic OROPTF (operation transition filter)

OPER? (operation event register)
OPEE (operation event enable register)

Operation status summary
Status byte (bit 7)

The transition filter converts conditions into events.
If corresponding bit of transition filter is 1:
When the corresponding bit of the condition register changes from 0 to 1, the corresponding
bit of the event register is set to 1.
If corresponding bit of transition filter is 0:
When the corresponding bit of the condition register changes from 1 to 0, the corresponding
bit of the event register is set to 1.

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5.4

Status Configuration

5.4.5 Warning statuses
WRER? (warning event register)

Always 0

15

15

Unused

14

14

:

:

:

:

:

:

UnusedOutput switched off due to overload
or over-limiter

1

1

0

0

Logic ORWREE (warning event enable register)Warning status summary
Status byte (bit 1)

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5.4

Status Configuration

5.4.6 Overload statuses
OVCR? (overload condition register)OVTF (overload transition filter)

15

15

15

15

Unused

14

14

14

14

:

:

:

:

:

:

:

:

:

:

:

:

:

:

:

Unused1111Overload detection

0

0

0

0

Logical OR

Always 0

OVER? (overload event register)
OVEE (overload event enable register)

Overload status summary
Status byte (bit 0)

The transition filter converts conditions into events.
If corresponding bit of transition filter is 1:
When the corresponding bit of the condition register changes from 0 to 1, the corresponding
bit of the event register is set to 1.
If corresponding bit of transition filter is 0:
When the corresponding bit of the condition register changes from 1 to 0, the corresponding
bit of the event register is set to 1.

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5.5

Response to Interface Messages

5.5 Response to Interface Messages
This product allows USB interface control via the interface messages listed in Table 5-10.
Table 5-11. Interface Messages
Interface Message

Response

IFC

Initialize USB interface.

SDC

Clear USB I/O buffer, clear status, and clear RQS bit.

REN

Set this product to remote status.

GTL

Set this product to local status.
Set this product to local lockout status.

LLO

Disable [LOCAL] key on operation panel.
Perform lock so that switching to local mode via the operation panel is not performed.

5.6 Programming Cautions
 Arbitrary waveform data
The arbitrary waveform data is the binary data part, and therefore must be transmitted separatelyfrom the command part of the preceding ASCII program message. The arbitrary waveform data mustbe transferred as 1024 words (2048 bytes). If a different amount of data is transferred, an error will
occur or the correct waveform will not be output.
Example: 1) ARBT #42048
2) [higher byte of data 0][lower byte of data 0][higher byte of data 1][lower byte of data 1] …… [lower byte of data 1023]

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6. TROUBLESHOOTING
6.1 Error Messagesꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 6-2
6.1.1 Error at power-onꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 6-2
6.1.2 Protective function related errors ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 6-3
6.1.3 Errors during operation ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 6-5
6.1.4 Warning display ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 6-6
6.2 Protective Functionsꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 6-7
6.2.1 Overload ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 6-8
6.2.2 Over-limiter ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 6-8
6.3 When Suspecting a Fault ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 6-9

6-1

BP4640/BP4650

6.1

Error Messages

6.1 Error Messages
This product runs a self-diagnosis at power-on, and if an anomaly is detected, an error message isdisplayed. An error message is also displayed when an incorrect setting or operation is performed.
The contents and cause of the error message, as well as the required handling, are listed below.

6.1.1 Error at power-on
This product performs the following fault diagnoses at power-on.
If an error occurs, “NG” is displayed on the system check screen.
Table 6-1 lists the diagnosis items and the required handlings in case of fault detection.
Table 6-1. Self-Diagnosis Errors
Fault Diagnosis Item

Fault Contents

Operation at Fault Detection & Required Handling

ROM CHECKROM sum-check

RAM READ/WRITE CHECKRAM read and write check

BACKUP MEMORY CHECK

Backup memory sum-check

WAVE MEMORY CHECK

Waveform memory sum-check

SEQUENCE MEMORYCHECK

Sequence memory sum-check

VERSION CHECK

Version number check

CALIBRATION MEMORYCHECKCalibration value memory
sum-check

Product failure may have occurred. Contact NF
Corporation or an NF Corporation sales
representative.
The operation stops at this point and the error
remains displayed until the power is switched off.

This product starts after memory initialization iscompleted.
(
Refer to “9. INITIAL SETTING LIST”.)
In such cases, the characteristics of the backup
battery may be degraded.
Refer to “7.6 Backup Battery”.)(

This product starts after calibration value memory
initialization has been completed.
In this case, this product starts up without calibration
values, and therefore the prescribed performancecannot be obtained. Since there may be defective
parts, contact NF Corporation or an NF Corporation
sales representative.

 Examples of screen displays in case of fault detection during self-diagnosis
ROM CHECK ........................................
RAM READ/WRITE CHECK .................
BACKUP MEMORY CHECK ...............
WAVE MEMORY CHECK ....................
SEQUENCE MEMORY CHECK ............
CALIBRATION MEMORY CHECK ......
VERSION CHECK ................................

OK
OK
OK
OK
OK
NG …..
NG …..

6-2

INITIALIZEDINITIALIZEDBP4640/BP4650

6.1

Error Messages

6.1.2 Protective function related errors
Table 6-2 lists the error messages displayed when protective function related errors occur.
Error messages are displayed in the message display window upon detection in the case of a power
failure, or the next time this product is powered on in all other cases. If an error message appears,
Refer to “6.2 Protective Functions”.)
press the [ENTER] or [CANCEL] key. (Table 6-2.
Error Message

Protective Function Related Errors

Protection Item

Operation and Required Handling
The message is displayed the next time the power is switched on.

Emergency shutdowned.
caused by:
OVERLOAD

Overload detection
anomaly

Regardless of whether or not the output is off, the fact thatoverload was detected is displayed.
Upon detection of this anomaly, contact NF Corporation or an
NF Corporation sales representative.
The message is displayed the next time the power is switched on.

Emergency shutdowned.
caused by:

The message indicates that the fact that the DCPS output voltage
DCPS anomaly

DCPS FAILURE

range exceeded the prescribed range was detected.
Upon detection of this anomaly, contact NF Corporation or an
NF Corporation sales representative.
The message is displayed the next time the power is switched on.

Emergency shutdowned.
caused by:Overheating anomaly

OVER TEMPERATURE

detected.
Check if the air filter is clogged.

Emergency stop.
caused by:This message indicates that overheating of the radiator was

The message is displayed upon detection of power failure.
Power failure

POWER FAILURE

It indicates that an instantaneous power interruption has been
detected.
The message is displayed the next time the power is switched on.

Emergency shutdowned.
caused by:

It indicates that the line monitoring circuit has not started up
Boot failure

BOOT FAILURE

normally.
Upon detection of this anomaly, contact NF Corporation or an
NF Corporation sales representative.
The message is displayed the next time the power is switched on.

Emergency shutdowned.
caused by:

It indicates that the power-on reset circuit has not started up
Reset anomaly

RESET FAILURE

normally.
Upon detection of this anomaly, contact NF Corporation or an
NF Corporation sales representative.
The message is displayed the next time the power is switched on.

Emergency shutdowned.
caused by:
FRONT PANEL FAILURE

Operation panel
anomaly

It indicates that an anomaly has been detected in thecommunication data exchanged with the operation panel.
Upon detection of this anomaly, contact NF Corporation or an
NF Corporation sales representative.

6-3

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6.1

Figure 6-1.

Error Messages

Protective Function Related Error Display Examples

6-4

BP4640/BP4650

6.1

Error Messages

6.1.3 Errors during operation
Table 6-3 lists error messages that are displayed when errors occur during operation.
Error messages are displayed in the message box. The message box automatically closes 1.5 seconds
later.
Table 6-3. Errors during Operation
Error Message
INVALID WITH OUTPUT ON
INVALID WITH OUTPUT OFF
INVALID IN THIS MODEINVALID WITH THIS WAVE

Error Description
Setting (execution) is not possible while output is on.
Setting (execution) is not possible while output is off.
Setting (execution) is not possible because the mode is incorrect.
Setting (execution) is not possible with this waveform.
Setting (execution) is not possible because of busy status.

UNDER BUSY STATEUNDER REMOTE STATEUNDER LOCAL STATEUNDER LOCAL LOCK OUT

Setting (execution) is not possible because of remote status.
Setting (execution) is not possible because of local status.
Setting (execution) is not possible because of local lockout.
Setting (execution) is not possible because of keylock.

UNDER KEYLOCK

Output cannot be switched on because of over-limiter.

OUT OF LIMITER

USB parameter range check error

OUT OF RANGE

Execution error other than above

EXECUTION ERROROUT OF MEASURE RANGE

Measurement out of range
USB interface command error

COMMAND ERROR

USB interface query error

QUERY ERROR

Figure 6-2.

Examples of Error Display During Operation

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6.1

Error Messages

6.1.4 Warning display
If output becomes off due to overload or over-limiter, one of the warnings listed in Table 6-4 isdisplayed.
During panel operation, this warning is displayed in the message display window. If a warning isdisplayed, press the [ENTER] key or the [CANCEL] key.
During remote operation, the warning is displayed in the message box. The message box automatically
Refer to “6.2 Protective Functions”.)
closes after 1.5 seconds. (Table 6-4. Warning Display
Message
Output off.
caused by:
OVERLOADOUTPUT OFF CAUSED BYOVERLOAD
Output off.
caused by:
OVER LIMITEROUTPUT OFF CAUSED BY OVER
LIMITER

Description
Indicates output off due to overload (during panel operation)
Indicates output off due to overload (during remote operation)
Indicates output off due to over-limiter (during panel operation)
Indicates output off due to over-limiter (during remote operation)

Figure 6-3. Warning Display Example

6-6

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6.2

Protective Functions

6.2 Protective Functions
This product has the protective functions listed in Table 6-5. If the power is interrupted by a protectivefunction at a time other than power failure, the cause is recorded and an error message (described in“6.1.2 Protective function related errors”) is displayed the next time this product powers on.
Table 6-5.

Protection Type

Protective Functions

Action upon Detection
Output off

Action upon Detection

Power off

The output is switched off at the same time that a beep is
Overload protection(overload)

Yes

Not while
overload
continues

emitted if the overload continues for 10 seconds after
detection.
OVERLOAD is displayed while overload continues.
(

refer to “6.2.1 Overload”)

The power is switched off upon detection of overload,
regardless of whether the output is off.
Overload detection anomaly Yes

Yes

An overload protection error message is displayed the nexttime this product is powered on.

refer to “6.1.2 Protective function related
errors”)(

The output and the power are switched off upon detection.
DCPS anomaly

Yes

Yes

A DCPS anomaly error message is displayed the next time thisproduct is powered on.
The output and the power are switched off upon detection.

Overheat protection

Yes

Yes

An overload protection error message is displayed the nexttime this product is powered on.
The power is switched off upon detection.

Power failure

Yes

No

An error message is displayed and the system is locked upondetection of a power failure.
The output is switched off while a beep is emitted if the DC
current voltage measurement value exceeds the voltage limiter

Measurement protection(over-limiter)

Yes

No

range.
If the above conditions are exceeded during output operation,
the output cannot be switched on.
(refer to “6.2.2 Over-limiter”)

The output and power are switched off upon detection.
Boot anomaly

Yes

Yes

A reset anomaly error message is displayed the next time thisproduct is powered on.
The output and power are switched off upon detection.

Reset anomaly

Yes

Yes

A reset anomaly error message is displayed the next time thisproduct is powered on.
The output and power are switched off upon detection.

Operation panel anomaly

Yes

Yes

An operation panel anomaly error message is displayed thenext time this product is powered on.

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6.2

Protective Functions

6.2.1 Overload
This product detects overload in the following cases.
 The output voltage exceeds the limiter value The output current exceeds the limiter value The internal power loss (average, momentary) is excessive
 The DCPS average output power is excessive
Upon detection of overload, this product displays the overload status, as follows.
 Upon detection of overload, theicon flashes and a beep is emitted.
 If the overload continues for 10 seconds after overload detection, a beep is emitted and the output
is switched off. An error message, listed in Table 6-4, is also displayed.
 If the overload further continues, the power switch is forced off. After this product is poweredback on, an error message, listed in Table 6-2, is displayed.

6.2.2 Over-limiter
If the DC output voltage measurement value exceeds the maximum value of the set voltage limiter
range or is 3 V or more under the minimum value, over-limiter is judged to have occurred. Upon
detection of over-limiter, this product displays the over-limiter status as follows.
refer to “4.4 Setting of Limiters”.
For how to set the limiter values, A beep is emitted and the output is switched off. An error message, listed in Table 6-4, is also
displayed.
 If the limiter values are exceeded during output on operation, the output cannot be switched on. In) is displayed and an error message, listed in Table 6-3, isthis case, the status icon (displayed.

6-8

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6.3

When Suspecting a Fault

6.3 When Suspecting a Fault
When suspecting a fault, perform the following handling. If this fails to achieve recovery, contact NF
Corporation or an NF Corporation sales representative.
ProblemPossible Cause

Handling

A power supply that exceeds the
rated range is used.
The power won’t go on

Use a power supply within the rated range.

The power supply fuse is broken.

Request repair from NF Corporation or an NF
Corporation sales representative.

A malfunction occurred due to

Place this product in a location with favorable

external noise.

environmental conditions.

Panel operation is not

The keys or MODIFY dial are

Request repair from NF Corporation or an NF

possible.

defective.

Corporation sales representative.
Raise the contrast of the LCD.
Even in an operating environment where the LCD

Nothing is displayed on
the LCD.

display cannot be made out, the contrast can be adjusted

The LCD contrast is too low.

by simultaneously pressing the ENTER key and
CANCEL key. At this time, the digit cursor is on thedecimal position.

This product has not been
sufficiently warmed up.

Warm up this product for 30 minutes or longer after
power on.

The ambient temperature and
The output value differsfrom the set value.

ambient humidity are not within theguaranteed operation range.

Use this product in an environment that matches the
specification ranges.

You want to output only AC, but the
DC setting is not “0”. Or, you wantto output only AC, but theMake the settings of outputs that are not needed “0”.

superimposed AC setting is not “0”.
A different interface setting from theprogram has been selected.
Restart has not been executed afterswitching USB interface.
The USB ID differs from the

Perform the settings in accordance with the program.
When you switch USB interface, restart this product.

program when you are using

Set an USB ID in the program in accordance with thisproduct.

program when you are using

Set an USB ID that matches the program.

External control via USB
USBTMC.
is not possible.
The USB ID differs from theUSB488.
The USB ID is the same as that ofanother device when you are using Set an USB ID that is unique.
USB488.
I don’t get the result as
described in the user’s

The explanations in the user’s manual assume the default
Execute setting initialization.

settings. Initialize the settings.
(

manual.

6-9Refer to “4.9.8 Reset function”.)

BP4640/BP4650

7. MAINTENANCE

7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8

Introduction ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 7-2
Daily Maintenance ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 7-2
Storage, Repacking, and Transportation ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 7-3
Version Number Verification Method ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 7-4
Cleaning the Air Filters ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 7-6
Backup Battery ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 7-7
Operation Inspection ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 7-8
Performance Test ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 7-10

7-1

BP4640/BP4650

7.1

Introduction

7.1 Introduction
To ensure use of this product under the best possible conditions, it is important to perform
maintenance as follows.
 Operation verification:
Check performed to verify whether this product operates correctly.
 Performance test:
Check performed to verify whether this product satisfies its ratings.
 Adjustment & calibration:
If this product does not satisfy its ratings, its performance can berestored through adjustments and calibration by NF Corporation.
 Troubleshooting:If the above actions fail to yield improvements, NF Corporation will
investigate the cause(s) of the fault and the fault location(s), andperform the necessary repairs.
This instruction manual explains operation inspections and performance tests that can be easily
performed. For more detailed inspections, adjustments, calibration, and troubleshooting, contact NF
Corporation or an NF Corporation sales representative.
Operation inspections and performance tests require the following measuring equipment.
 Oscilloscope
Frequency band: 50 MHz or higher
 Frequency counter
Standard oscillator stability: Within 10 ppm
 AC voltmeter
TrueRMS type, accuracy: Within 0.2 %,Frequency band: 300 kHz or higher
Recommended equipment: Agilent-made 3458A
 DC voltage meter
Accuracy: Within 0.1 %Recommended equipment: Agilent-made 34401A
 Distortion meter
Full scale: 1 % or less, Frequency band: 100 kHz or higher Sine wave oscillator
Amplitude: Within 3 Vp-p, Frequency: 10 Hz to 100 kHz,Distortion: Within 0.2 % Resistance load
1.5 /2400 W (BP4640)
1.2 /3000 W (BP4650)
 Current measuring instrument
1 m non-inductive current shunt or current sensor, 100 A or
higher

7.2 Daily MaintenanceUse this product in a place that meets the installation conditions.
refer to “2.2 Installation Environment”.
For the installation conditions,
If the panel or case surface is soiled, wipe it with a soft cloth. In the case of resistant stains, wipewith a cloth that has been imbibed with a neutral detergent and then wrung well.
Wiping this product using an organic solvent such as thinner or benzene, or a pre-moistened wipe,
may cause degradation in material quality, clouding, or flaking off of the paint, and must therefore be
avoided.

7-2

BP4640/BP4650

7.3

Storage, Repacking, and Transportation

7.3 Storage, Repacking, and Transportation
Store this product in a location that meets the installation conditions.
For the installation conditions,refer to “2.2 Installation Environment”.

If repacking this product for transportation, etc., make sure that the box that is used is sufficiently
strong and large to support the weight of this product and provide adequate protection.
During transportation, handle this product with care and protect it from strong shocks.
Be sure to include the instruction manual at transportation.

7-3

BP4640/BP4650

7.4

Version Number Verification Method

7.4 Version Number Verification Method
The firmware version of this product is for a few seconds at power-on.
At times other than power-on, the system information can be displayed and checked via theoperation panel.

 Operation procedure via operation panel<1> Press the

CANCEL<2> Press theand<3> Press the

CANCEL

icon.

ENTER

ENTER

Press theCANCELkeys to move the cursor to the

key to display the MISC screen.
key to move the cursor to “SYSTEM”.

ENTER

ENTER

key to display the SYSTEM screen.

ENTER

7-4

BP4640/BP4650

7.4<4> Press the

CANCEL<5> Press the

CANCEL

Version Number Verification Method

key to move the cursor to “INFORMATION”.

ENTER

ENTER

key to display the “SYSTEM INFORMATION” screen.

ENTER

Figure 7-1.

SYSTEM INFORMATION Screen

7-5BP4640/BP4650

7.5

Cleaning the Air Filters

7.5 Cleaning the Air Filters
Dust and dirt that penetrates in this product and adheres inside may absorb the water content in the
air and therefore cause rusting of metal parts, as well as cause a degradation in insulation
performance leading to the failure of internal high-voltage parts.
Therefore, air filters (which number 5) are provided to eliminate dust and dirt contained in the
inflowing air at the air intake vent on the front panel.
The dirt adhering to the filters, if not removed, will clog up the filters and reduce the air flow,
causing the temperature inside this product to rise and lowering its reliability.
In such cases, remove the filter and clean out the dirt, as shown below.

When rinsing with water, besure to dry the filter thoroughly before reattaching it.

Air filter

Bar

Thumbscrews
Screws(1) Remove the thumbscrews at the four corners of(3) Remove the air filter from the inside of thethe air inlet piece on the front panel, and remove

air inlet piece, then clean air filter.

the air inlet.

(4) Follow the same procedure to remove and(2) Remove the screws on the back side of the airclean the other air filters.

inlet piece and remove the bar(5) After cleaning the air filters, make surethey are completely dry before performing
steps (1) to (3) in reverse order to reattach
them.

Figure 7-2.

Air Filter Cleaning Procedure

Filter performance is not fail-proof as filter reliability can be degraded by extremely fine dirt (finepowder) and clogging. Therefore, installation of this product in a location filled with dust or dirt(including fine powder) or a location with high humidity where condensation can easily occur,should be avoided as much as possible.

7-6

BP4640/BP4650

7.6

Backup Battery

7.6 Backup Battery
The contents of memory (refer to “4.7 Memory Functions”) and other required parametersand data are backed up by the internal lithium battery of this product.
The backup period varies depending on the temperature and use conditions, but when left without
power it is approximately five years.
The backed up contents are checked at power-on, and if the contents have become degraded, anerror message is displayed (reset to the initial values (refer to “6.1 Error Messages”) and the values of this product arerefer to “4.7 Memory Functions”).

If the backed up contents have been lost due to battery exhaustion, theicon blinks.

In such cases, the battery must be replaced. Contact NF Corporation or our agents.

7-7

BP4640/BP4650

7.7

Operation Inspection

7.7 Operation Inspection
 Verification before operation inspection
Before performing operation inspection, check the following items.
 Is the supply voltage within the rated range?
 Is the ambient temperature within the range of 5 to 35 C?
 Is the ambient humidity within the range of 5 to 85 %RH? (with absolute humidity of 1 to 25
g/m3) Is there any condensation?

 Check at power-on
Check that on error is displayed at power-on.
Check that the UNCAL icon and battery icon are not blinking.
(If an error is displayed,refer to “6.1.1 Errors at power-on”.)

 LCD screen check
Check that the characters, icons, and lines displayed on the LCD screen are not displaced, do not
flicker, and free of bleeding.

 Conditions during operation mode-specific function check
When performing the following operation-mode specific function checks, first initialize (execute
RESET in the SYSTEM menu) the settings for each check to prevent incorrect settings.
Also,
connect the resistance load shown in “7.1 Introduction” to the output terminal of thisproduct.

 Check during CV mode internal signal source operation
Observe the voltage monitor output after connecting it to an oscilloscope. (The voltage of 1/100th
the output voltage is monitored.)In this state, try changing the settings listed below a number of times and check whether thisproduct functions normally.
DC voltage, superimposed AC voltage, superimposed AC frequency, superimposed AC waveform,
output on/off, voltage limiters (when the voltage limiters are set to a smaller value than the output
voltage while this product is outputting superimposed AC voltage, clipping of the voltage
frequency will occur and overload will be displayed on the LCD screen of this product).

 Check during CC mode internal signal source operation
After performing setting initialization, set the operation mode to CC-INT.
Connect the current monitor output to an oscilloscope and observe it (About monitor output,
refer to “8.5 Monitor Output”.).
In this state, try changing the settings listed below a number of times and check whether thisproduct functions normally.
DC current, superimposed AC current, superimposed AC frequency, superimposed AC waveform,
output on/off, current limiters (when the current limiters are set to a smaller value than the output
current while this product is outputting superimposed AC current, clipping of the current
waveform will occur and overload will be displayed on the LCD screen of this product).

7-8

BP4640/BP4650

7.7

Operation Inspection

 Check during CV mode external signal input operation
After setting initialization has been performed, set the operation mode to CV-EXT.
Connect the output of the external oscillator to the external signal input of this product.
Connect the output of the external oscillator and the voltage monitor output to an oscilloscopeand observe them.
In this state, try changing the output amplitude and frequency of the external oscillator and check
whether this product functions normally. The amplitudes of the external oscillator output andvoltage monitor output should be almost the same up to approximately 10 kHz.

 Check during CC mode external signal input operation
After performing setting initialization, set the operation mode to CC-EXT.
Connect the output of the external oscillator to the external signal input of this product.
Connect the external oscillator output and the current monitor output to the oscilloscope andobserve them.
In this state, try changing the external oscillator output amplitude and frequency and check
whether this product functions normally. The amplitudes of the external oscillator output and thecurrent monitor output should be almost the same up to approximately 2 kHz.

 Check during CV mode adjusted characteristics operation
Turn all three response calibrator knobs counterclockwise all the way.
After performing setting initialization, switch on the response calibrator, the AC voltage to 100
Vp-p, the frequency to 10000 Hz, and the waveform to square wave.
Connect the voltage monitor output to the oscilloscope and observe it. (The voltage 1/100th theoutput voltage is monitored.)In this state, turn all the knobs of the response calibrator and check whether the rise and fallcharacteristics of the square wave change. The degree of change varies according to the knobs.
Once the check has been completed, turn all three knobs of the response calibrator
counterclockwise all the way, and switch off the response calibrator.

 Check during CC mode adjusted characteristics operation
Turn the three response calibrator knobs counterclockwise all the way.
After performing setting initialization, switch on the response calibrator and set the AC current to40 Ap-p (BP4640) or 50 Ap-p (BP4650), the frequency to 10000 Hz, and the waveform to square
wave.
Connect the current monitor output to the oscilloscope and observe it. (About monitor output,
refer to “8.5 Monitor Output”.)
In this state, try changing the three response calibrator knobs and check whether the rise and fallcharacteristics of the square wave change. The degree of change varies according to the knobs.
Once the check has been completed, turn all three knobs of the response calibrator
counterclockwise all the way, and switch off the response calibrator.

 USB Check
Change some of the settings that were used for checking the main functions of this product andcheck whether the same output changes are obtained.
At that time, check whether “RMT” is displayed on the screen.
Also, check that when the [LOCAL] key is pressed, the “RMT” display disappears and the local
status is returned to (when the status is other than local lockout).

7-9

BP4640/BP4650

7.8

Performance Test

7.8 Performance Test Performance test
Performance testing is performed as part of preventive maintenance in order to prevent
performance degradation of this product. To facilitate execution, this test is performed underconditions that partially differ from the specifications, as the test items, used measuring
equipment, and load condition are limited for the sake of convenience. If more extensive testingis required, contact NF Corporation or an NF Corporation sales representative.
Performance testing should be performed as part of acceptance inspection, periodic inspection,
performance verification following repair of this product, etc.
If, as the result of performance testing, this product is found not to meet its specifications, repair
is necessary. In this case, contact NF Corporation or an NF Corporation sales representative.

 Verification prior to performance testing
Prior to performance testing, check the following items.
 Is the power supply voltage within the rated range?
 Is the ambient temperature within 23 5 C?
 Is the ambient relative humidity within the range of 20 to 70 %RH?
 Is there any condensation?
 Has this product been warmed up for 30 minutes or longer?

 Preparations prior to performance testing
Use a cable with a cross section of 8 mm2 or more and a length of 2 m or less for connecting theload.
The setting contents of each test item include items that can be changed after performing setting
initialization (by executing RESET in SYSTEM menu). After checking the setting contents,
switch on the output.

 Maximum output voltage test using CV mode external signal input
refer to “7.1 Introduction”.)
Load: Resistance load (About Resistance load,
Measurement connection: Connect the output of the external oscillator to the external signal inputof this product. Then connect an AC voltmeter and distortion meter to the output terminal of thisproduct and measure the voltage and distortion.
Settings: After performing setting initialization, set the operation mode and external oscillator
frequency according to the following table.
Judgment: Gradually increase the output voltage of the external oscillator from 1 Vp-p (theoutput voltage of this product is 100 Vp-p, 35.4 Vrms), and if the output voltage of this productimmediately before the distortion exceeds 1 % or overload occurs falls within the rated range
indicated in the following table, the operation is judged to be normal.
Operation Mode Setting
CV-EXT

External Oscillator Frequency
50 Hz
500 Hz7-10

Rated Range
42.43 Vrms or higher
42.43 Vrms or higher

BP4640/BP4650

7.8

Performance Test

 Maximum output current test using CC mode external signal input
Load: Shorted via current measuring instrument.
Measurement connection: Connect the output of the external oscillator to the external signal inputof this product. Then connect the detection voltage of the current measuring instrument to an AC
voltmeter and distortion meter, and measure the current and distortion.
Settings: After performing setting initialization, set the operation mode and external oscillator
frequency according to the following table.
Judgment: Gradually increase the output voltage of the external oscillator from 1.6 Vp-p, and if
the output voltage of this product immediately before the distortion exceeds 1 % or overload
occurs falls within the rated range indicated in the following table, the operation is judged to benormal.
Operation Mode Setting
CC-EXT

Model
BP4640CC-EXT

BP4650External Oscillator Frequency
50 Hz
500 Hz
50 Hz
500 HzRated Range
28.28 Arms or higher
28.28 Arms or higher
35.36 Arms or higher
35.36 Arms or higher

 Harmonic distortion test using CV mode external signal input
Load: Resistance load (About Resistance load,refer to “7.1 Introduction”.)
Measurement connection: Connect the output of the external oscillator to the external signal
input of this product. Then connect an AC voltmeter and distortion meter to the output terminal ofthis product, and measure the voltage and harmonic distortion.
Settings: After performing setting initialization, set the operation mode and external oscillator
frequency according to the following table. Set the output voltage of the external oscillator to
1.2 Vp-p. Check that the output voltage of this product is 120 Vp-p.
Judgment: If the harmonic distortion of the output voltage of this product falls within the rated
ranges indicated in the following table, the operation is judged to be normal.
Operation Mode Setting
CV-EXT

External Oscillator Frequency
10 Hz
10 kHzRated Range
1 % or less
1 % or less

 Harmonic distortion test using CC mode external signal input
refer to “7.1 Introduction”.)
Load: Resistance load (About Resistance load,
Measurement connection: Connect the output of the external oscillator to the external signal inputof this product. Then connect an AC voltmeter and a distortion meter to the output terminal ofthis product, and measure the voltage and frequency distortion.
Settings: After performing setting initialization, set the operation mode and external oscillator
frequency according to the following table. Set the output voltage of the external oscillator to2 Vp-p. Check whether the output voltage of this product is 120 Vp-p. If overload seems likely tooccur, slightly lower the output voltage of the external oscillator.
Judgment: If the harmonic distortion of the output voltage of this product falls within the rated
ranges in the following table, the operation is judged to be normal.
Operation Mode Setting
CC-EXT

External Oscillator Frequency
10 Hz
10 kHz7-11

Rated Range
1 % or less
1 % or less

BP4640/BP4650

7.8

Performance Test

 Output DC offset test during external input short
Load: Resistance load (About Resistance load,refer to “7.1 Introduction”.)
Measurement connection: Short the external input terminal (installation of a 50  or 75 
termination resistor is also possible). Measure the voltage of the output terminal of this productwith a DC voltmeter. In the case of the CC mode, convert the measured voltage value into acurrent value by dividing it by the load resistance.
Settings: After performing setting initialization, set the operation mode according to thefollowing table.
Judgment: If the output voltage or output current of this product falls within the rated ranges in
the following table, the operation is judged to be normal.
Operation Mode Setting

Model

Rated Range

CV-EXT
CC-EXTAll models
BP4640BP46500.1 to +0.1 V
0.2 to +0.2 A (load voltage: 0.3 to +0.3 V )0.25 to +0.25 A (load voltage: 0.3 to +0.3 V)

 Residual noise test during external input short
Load: Resistance load (About Resistance load,refer to “7.1 Introduction”.)
Measurement connection: Short the external input terminal (installation of a 50  or 75 
termination resistor is also possible). Measure the voltage of the output terminal of this productwith a DC voltmeter. In the case of the CC mode, convert the measured voltage value into acurrent value by dividing it by the load resistance.
Settings: After performing setting initialization, set the operation mode according to thefollowing table.
Judgment: If the output voltage or output current of this product falls within the rated ranges in
the following table, the operation is judged to be normal.
Operation Mode Setting
CV-EXT
CC-EXTModel
All models
BP4640BP4650

Rated Range
50 mVrms or lower
32 mArms or lower (load voltage: 48 mVrms or lower)
40 mArms or lower (load voltage: 48 mVrms or lower) Output voltage limiter accuracy test
Load: No load
Measurement connection: Measure the voltage of the output terminal of this product with a DC
voltmeter.
Settings: After performing setting initialization, set the output voltage limiters and DC output
voltage according to the following table.
Judgment: If the output voltage of this product falls within the rated ranges in the following
table, the operation is judged to be normal. This is the output voltage when overload has occurred.
The output is switched off after approximately 10 seconds.
+ Voltage Limiter Setting+112 V+12 V

 Voltage Limiter Setting
12 V
112 V

7-12

DC Output Voltage Setting+115 V115 V

Rated Range+111 to +113 V
113 to 111 V

BP4640/BP4650

7.8

Performance Test

 Output current limiter accuracy test
Load: Short via a current measuring instrument
Measurement connection: Measure the detection voltage of the current measuring instrument witha DC voltmeter and convert the measured value to a DC value.
Settings: After setting initialization has been performed, set the + current limiter, – current
limiter, output voltage limiter and DC output voltage according to the following table.
Judgment: If the output current of this product falls within the rated ranges in the following
table, the operation is judged to be normal. This is the output current when overload has occurred.
The output is switched off after approximately 10 seconds.
+ Current Current+ Voltage Voltage
DC Output
Limiter Setting Limiter Setting Limiter Setting Limiter Setting Voltage Setting
BP4640
+40 A
40 A
+52 V
72 V
+10 V
+72 V
52 V
10 V
BP4650
+50 A
50 A
+52 V
72 V
+10 V
+72 V
52 V
10 V
Model

Rated Range+36 to +44 A
44 to 36 A+45 to +55 A
55 to 45 A

 Amplitude accuracy test of CV mode internal DC signal source
Load: No load
Measurement connection: Measure the voltage of the output terminal of this product with a DC
voltmeter.
Settings: After setting initialization has been performed, set the output voltage limiters and DC
output voltage according to the following table.
Judgment: If the output voltage of this product falls within the rated ranges in the following
table, the operation is judged to be normal.
+ Voltage Limiter Setting+117 V+7 V

 Voltage Limiter Setting
7 V
117 VDC Output Voltage Setting+115 V115 V

Rated Range+114.23 to +115.77 V
115.77 to 114.23 V

 Amplitude accuracy test of CC mode internal DC signal source
Load: Short via a current measuring instrument
Measurement connection: Measure the detection voltage of the current measuring instrument witha DC voltmeter and convert the measured value to a DC value.
Settings: After setting initialization has been performed, set the operation mode and DC output
current according to the following table.
Judgment: If the output current of this product falls within the rated ranges in the following table,
the operation is judged to be normal.
Operation Mode Setting
CC-INT

Model
BP4640DC Output Current Setting
+40A
40 A
+50A
50 A

BP4650

Rated Range+39.68 to +40.32 A
40.32 to 39.68 A+49.60 to +50.40 A
50.40 to 49.60 A

 Frequency accuracy test of internal AC signal source
Load: Resistance load (About Resistance load,refer to “7.1 Introduction”.)
Measurement connection: Measure the signal (1 Vp-p) of the voltage monitor output terminal ofthis product with a frequency counter.
Settings: After setting initialization has been performed, set the frequency and AC output
voltage according to the following table.
Judgment: If the output frequency of the voltage monitor of this product falls within the rated
range in the following table, the operation is judged to be normal.
Frequency Setting
10000 HzAC Output Voltage Setting
100 Vp-p

7-13

Rated Range
9999 to 10001 Hz

BP4640/BP4650

7.8

Performance Test

 Amplitude accuracy test of CV mode internal AC signal source
refer to “7.1 Introduction”.)
Load: Resistance load (About Resistance load,
Measurement connection: Measure the voltage of the output terminal of this product with an AC
voltmeter.
Settings: After setting initialization has been performed, set the frequency and AC output
voltage according to the following table.
Judgment: If the output voltage of this product falls within the rated ranges in the following
table, the operation is judged to be normal.
Frequency Setting
500 HzAC Output Voltage Setting
120 Vp-p
10 Vp-pRated Range
119.2 to 120.8 Vp-p(42.15 to 42.70 Vrms)
9.75 to 10.25 Vp-p
(3.446 to 3.623 Vrms)

 Amplitude accuracy test of CC mode internal AC signal source
Load: Short via a current measuring instrument
Measurement connection: Measure the detection voltage of the current measuring instrument withan AC voltmeter, and convert the measured value to a current value.
Settings: After setting initialization has been performed, set the operation mode, frequency, andAC output current according to the following table.
Judgment: If the output current of this product falls within the rated ranges in the following table,
the operation is judged to be normal.
Operation Mode SettingFrequency Setting Model AC Output Current Setting
Rated Range
CC-INT
500 HzBP4640120 Ap-p119.28 to 120.72 Ap-p(42.17 to 42.68 Arms)
12 Ap-p11.82 to 12.18 Ap-p
(4.18 to 4.31 Arms）
CC-INT
500 HzBP4650150 Ap-p
149.10 to 150.90 Ap-p(52.71 to 53.35 Arms)
15 Ap-p
14.78 to 15.23 Ap-p(5.22 to 5.38 Arms）

 DC output voltage measurement accuracy test
Load: No load
Measurement connection: Measure the voltage of the output terminal of this product with a DC
voltmeter.
Settings: After setting initialization has been performed, set the output voltage limiters andcurrent output voltage according to the following table.
Judgment: If the difference between the DC voltage measurement display value of this productand the value measured with the DC voltmeter falls within the rated ranges in the following table,
the operation is judged to be normal.
+ Voltage Limiter Setting+117 V+7 V

 Voltage Limiter Setting
7 V
117 V

7-14

DC Output Voltage Setting+115 V115 V

Rated Range
0.5 to +0.5 V
0.5 to +0.5 V

BP4640/BP4650

7.8

Performance Test

 DC output current measurement accuracy test
Load: Short via a current measuring instrument
Measurement connection: Measure the detection voltage of the current measuring instrument witha DC voltmeter and convert the measured value to a DC value.
Settings: After setting initialization has been performed, set the operation mode and the DC
output current according to the following table.
Judgment: If the difference between the DC current measurement display value of this productand the current value measured with the DC voltmeter falls within the rated ranges in thefollowing table, the operation is judged to be normal.
Operation Mode Setting
CC-INT

Model
BP4640CC-INT

BP4650DC Output Current Setting
+40 A
40 A
+50 A
50 A

7-15

Rated Range
0.4 to +0.4 A
0.4 to +0.4 A
0.5 to +0.5 A
0.5 to +0.5 A

BP4640/BP4650

8. SPECIFICATIONS
8.1 Specification Conditions ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-2
8.2 Output ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-3
8.3 Output Limiters ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-5
8.4 Signal Sources ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-6
8.4.1 Internal signal source ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-6
8.4.2 External signal input ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-7
8.5 Monitor Output ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-8
8.6 Measurement Functions ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-9
8.7 Sequence Function ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-10
8.8 Arbitrary Waveform Memory ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-10
8.9 Setting Memory ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-11
8.10 Protective Functions ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-11
8.11 General ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-11
8.12 External Control I/O ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-12
8.13 USB Interface ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-12
8.14 Power Input ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-13
8.15 Withstand Voltage, Insulation Resistance ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-13
8.16 Ambient Temperature Range andAmbient Humidity Range ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-13
8.17 External Dimensions and Weight ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-14
8.18 EMCꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-14
8.19 Option ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-15
8.20 Output Voltage and Output Current Supply Rangesꞏꞏꞏꞏꞏꞏ 8-15
8.21 Drawing of External Dimensions ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 8-20

A value with the accuracy is the guaranteed value, but a value
without the accuracy is the reference value or representative value(shown as typ.).
All of the adjusted characteristics valuesare also for reference value
only.
The reference value shows the supplemental data for reference when
the product is used, and is not under the guarantee.

8-1BP4640/BP4650

8.1

Specification Conditions

8.1 Specification Conditions
The power input voltage is noted as line voltage in three-phase four-wire input, unless otherwise
noted.
Specifications are valid under the following settings and conditions and after a warm-up period of
30 minutes at least, unless otherwise noted.
Item

BP4640BP4650

Output frequency

1 kHz

SignalExternal input signal

Output waveform

Sine wave (DC = 0 V)

Output voltage

60 V

Output current

±40 A

±50 A

Load

1.5 Ω

1.2 Ω

Response characteristics

Fixed characteristics

Output voltage limiter setting

62 V

Output current limiter setting±104 A±130 AIn this chapter, the terms “fixed characteristics” and “adjusted characteristics” have the following
meanings.

 Fixed characteristics
These characteristics are fixed when this product is shipped and cannot be changed by the user.
They are set with the aim to achieve both wide frequency band characteristics and load stability.

 Adjusted characteristics
These characteristics are adjusted by the user for the CV or CC mode using the response
calibration function, so as to achieve the fastest possible step response waveform rise time andfall time, as well as overshoot, undershoot, and sag that fall within 12 % of the P-P amplitude in
the CV mode or within 5 % of the P-P amplitude in the CC mode.

8-2

BP4640/BP4650

8.2

Output

8.2 Output
 Output in the constant voltage (CV) mode
Item
Maximum

BP4640DC *1

outputvoltage

Adjusted

DC tocharacteristics

0.5 kHz0.5 kHz to
40 kHz40 kHz to
150 kHz

Fixed

DC to

characteristics

0.5 kHz0.5 kHz to
40 kHzSmallamplitudefrequency
characteristics*3

Adjusted

DC tocharacteristics

20 kHz
20 kHz to
200 kHz

Fixed

DC to

characteristic

10 kHz
10 kHz to
35 kHzBP4650+115 V(+Vo limit +117 V，Vo limit 7 V setting)-115 V(+Vo limit +7 V，Vo limit 117 V setting)±60 V±60 V *2
±50 V
±60 V
±60 V *2±0.5 dB+1，-3 dB
±0.5 dB+1，-3 dB

Harmonic distortion

1 % or less (10 Hz to 10 kHz)

Rise/fall time

2.5 s (adjusted characteristics, square wave 60 V)

Output impedance *4

1.8 mΩ＋0.33 μH

Line regulation (typ.) *5

0.1 % or less

Output DC offset *6

0.1 V or less

Residual noise (rms, typ.) *7

50 mV or less

1.4 mΩ＋0.31 μH*1: For the following load.
ItemBP4640BP4650Resistance load
5.8 Ω
4.6 Ω
*2: For the following load.
ItemBP4640BP4650Resistance load
1.0 Ω
0.80 Ω
*3: Output amplitude 12 Vp-p, 500 Hz reference.
*4: Adjusted characteristics.
*5: Power supply voltage of 180 V to 250 V (3P3W) or 323 V to 433 V (3P4W)*6: Input terminal short.
*7: Input terminal short, measurement band 10 Hz to 300 kHz

8-3

BP4640/BP4650

8.2

Output Output in the constant voltage (CC) mode
Item

BP4640Maximum

Adjusted

DC tooutputcharacteristics

0.5 kHzvoltage

0.5 kHz to
30 kHz
30 kHz to
70 kHz
Fixed

DC to

characteristics

0.5 kHz0.5 kHz to
3 kHz
3 kHz to10 kHzSmallamplitudefrequency
characteristics*3

Adjusted

DC tocharacteristics

20 kHz
20 kHz to
70 kHz

Fixed

DC to

characteristic

2 kHz
2 kHz to8 kHz

BP4650

±40 A

±50 A

±60 A *1

±75 A *1

±33.2 A

±41.5 A

±40 A

±50 A

±60 A *1

±75 A *1

±52 A *1

±65 A *1

±0.5 dB+1，-3 dB
±0.5 dB+1，-3 dB

Harmonic distortion

1 % or less (10 Hz to 10 kHz)

Rise/fall time *3

4 μs

Output impedance *4

2.5 kΩ//1.8 μF

Line regulation (typ.) *5±0.1 % or less

Output DC offset *6±0.2 A or less±0.25 A or less

Residual noise (rms, typ.) *7

32 mA or less

40 mA or less

*1: For the following load.
ItemBP4640Resistance load
1.0 Ω

2 kΩ//2.25 μF

BP46500.80 Ω

*2: Output amplitude 12 Vp-p, 500 Hz reference.
*3: Adjusted characteristics, square wave, for the following current.
Item
BP4640BP4650Current±40 A±50 A*4: Adjusted characteristics.
*5: Power supply voltage of 180 V to 250 V (3P3W) or 323 V to 433 V (3P4W)*6: Input terminal short.
*7: Input terminal short, measurement band 10 Hz to 300 kHz

8-4

BP4640/BP4650

8.3

Output Limiters Output terminal
ItemBP4640

Output terminal *1

M8 screw

BP4650*1: Output terminal block is on the rear panel, common in the CV and CC mode. The Lo side isconnected to the chassis.

 Output voltage, current supply range
Refer to “8.19 Output Voltage and Output Current Supply Ranges”.

 Response characteristics switching
Fixed characteristics or adjusted characteristics

 Response calibration function
If adjusted characteristics are selected as the response characteristics, the response characteristics
adjusted by the user can be used. The distortion of the output waveform associated with the loadconditions can be improved through adjustments. Higher or lower speed than the fixedcharacteristics can be achieved through adjustments.
Adjustments are performed by operating the three adjustment knobs (located beneath theoperation panel) for the time constant, voltage feedback amount, and current feedback amount,
while watching the output voltage and current waveform on an external oscilloscope.

8.3 Output Limiters Output voltage limiters
Item

Description+ voltage setting range (+Vo limit)
 voltage setting range (Vo limit)
Setting resolution
Setting accuracy
Remark:+7 V to +117 V (initial value: +62 V)
117 V to 7 V (initial value: 62 V)
0.1 V
1 V (DC)The difference between the + voltage setting and the – voltage setting is restricted to
24 V or higher and 124 V or lower.
The output voltage and output current supply ranges are determined by the output
voltage limiter settings.
Depending on the operation conditions, the output voltage may be limited to anarrower range than the voltage limiter settings.
(

Refer to “8.19 Output Voltage and Output Current Supply Ranges”.)

8-5

BP4640/BP4650

8.4

Signal Sources Output current limiters
Item

BP4640+ current setting range (+Io limit)
 current setting range (Io limit)+4 A to +104 A+5 A to +130 A(initial value: +104 A)(initial value: +130 A)-104 A to -4 A

-130 A to -5 A

(initial value: -104 A)(initial value: -130 A)

Setting resolution

1A

Setting accuracy (DC) *1±4 A

Remark:BP4650±5 A

The source current is considered to be positive.
Depending on the operation conditions, the output current may be limited to a narrower
range than the current limiter settings.
(

Refer to “8.19 Output Voltage and Output Current Supply Ranges”.)*1: For DC current within the following current value.
Item

BP4640Current±40 A

BP4650±50 A

8.4 Signal Sources
The signal source can be selected from among internal signal source, external signal source, andinternal signal source + external signal source.

8.4.1 Internal signal source CV mode
Item
DC voltage

AC voltage

Description

Setting range
Setting resolution
Setting accuracy *1
Amplitude setting range
Amplitude setting resolution
Amplitude setting accuracy *2
Waveform
Frequency setting range
Frequency setting resolution
Frequency setting accuracy

115 V to +115 V
0.01 V
(|0.5 % of setting value| + 0.2 V)
0 Vp-p to 120 Vp-p
0.1 Vp-p(0.5 % of setting value + 0.2 Vp-p)
Sine, square, arbitrary (16 types)
1 Hz to 100 kHz
0.1 Hz100 ppm*1: AC 0 V, DC only, 23 5 C, and for the following load.
Item
Resistance load

BP46405.8 ΩBP4650
4.6 Ω*2: DC 0 V, AC only, 500 Hz sine wave, 23 5 C.

8-6

BP4640/BP4650

8.4

Signal Sources CC mode
Item

BP4640DC

Setting range-40 A to +40 A

current

Setting resolution

0.01 A

Setting accuracy *1
ACAmplitude setting range

current

Amplitude setting
resolution

BP4650-50 A to +50 A±(|0.5 % of setting value|±(|0.5 % of setting value|+0.12 A)

+0.15 A)

0 Ap-p to 120 Ap-p

0 Ap-p to 150 Ap-p

0.1 Ap-p

Amplitude setting±(0.5 % of setting value±(0.5 % of setting value

accuracy *2+0.12 Ap-p)+0.15 Ap-p)

Waveform

Sine, square, arbitrary (16 types)

Frequency setting range

1 Hz to 100 kHz

Frequency setting
resolution
Frequency setting
accuracy

0.1 Hz±100 ppm*1: AC 0 A, DC only, 23 5 C.
*2: DC 0 A, AC only, 500 Hz sine wave, 23 5 C, and for the following load.
ItemBP4640Resistance load

1.0 Ω

BP46500.80 Ω

8.4.2 External signal input Common to CV and CC mode
Item
Phase
Gain accuracy
Input impedance
Non-destructive max. input voltage
Input terminal
Frequency range

Description
In phase
5 % (1 kHz)
10 kΩ
5 V
BNC connector (front panel)
DC to 200 kHz

 CV mode
Item
Gain
Input voltage range

Description100
1.15 V

8-7

BP4640/BP4650

8.5

Monitor Output

 CC mode
Item

BP4640Gain

40 A/V

Input voltage range±1.5 V

BP465050 A/V

8.5 Monitor Output
 Output voltage monitor output
Item
Monitor ratio
Phase
Monitor accuracy *1
Frequency characteristics *2

Description

DC to 40 kHz
40 kHz to 400 kHz

Output impedance
Output terminal

1/100
In phase
1.2 V0.5 dB+1 dB, 3 dB
50 
BNC connector (front panel)*1: Difference between DC output voltage and conversion voltage obtained from monitor voltage,
1 M monitor output load impedance.
*2: 1 kHz reference, 1 M monitor output load impedance Output current monitor output
Item

BP4640

Monitor ratio *1

1/40

Phase

In phase

Monitor accuracy *2±0.8 A

Frequency

DC to 20 kHz±0.5 dBcharacteristics *3

20 kHz to 200 kHz+1 dB，-3 dB

Output impedance

50 Ω

Output terminal

BNC connector (front panel)

BP4650
1/50±1 A*1: Output voltage multiplied by monitor ratio against output current. (V/A)*2: Difference between DC output current and conversion current obtained from monitor voltage,
1 M monitor output load impedance.
*3: 1 kHz reference, 1 M monitor output load impedance

8-8

BP4640/BP4650

8.6

Measurement Functions

8.6 Measurement Functions
 DC output voltage measurement
Item
Full scale
Resolution
Measurement accuracy
Remark:Description
200 V
0.1 V
0.5 V (within DC 115 V, AC 0 V)

Measures AC + DC average. However, AC + DC must be within full scale.

 DC output current measurement
Item

BP4640

Full scale±80 A

Resolution

0.1 A

Measurement accuracy *1±0.4 A

Remark:BP4650±100 A±0.5 A

Measures AC + DC average. However, AC + DC must be within full scale.

*1: Within max. DC output current, AC 0 A.

 AC output voltage measurement
Item
Full scale
Resolution
Measurement accuracy
Measurement frequency band
Remark:Description
400 Vp-p
1 Vp-p
2 Vp-p (DC 0 V, 120 Vp-p, 500 Hz)
10 kHz/3 dB

Measures max. value of AC+DC  min. value of AC + DC. However, AC + DC must bewithin full scale of DC output voltage measurement.

 AC output current measurement
Item

BP4640

Full scale

160 Ap-p

Resolution

1 Ap-pMeasurement accuracy *1±4 Ap-p

Measurement frequency band

10 kHz/-3 dB

Remark:BP4650200 Ap-p±5 Ap-p

Measures max. value of AC + DC  min. value of AC + DC. However, AC + DC must bewithin full scale of DC output current measurement.

*1: Within max. output current, DC 0 A, 500Hz.

8-9

BP4640/BP4650

8.7

Sequence Function

8.7 Sequence Function
The output parameters can be rapidly changed sequentially or swept.
The signal source is limited to internal signal or internal signal + external signal input.
The sequence function settings are saved to battery backed up memory.
Item

Description

Number of sequences
Number of steps
Step time
Setting range
Setting resolution
Operation within step
Parameters *1
CV modeCC modeJump countSequence control

Start
Stop
Hold
Branch1 sequence for each of the CV mode and CC mode
1 to 255 (within 1 sequence)
0.1 ms to 999.9999 s
0.1 msConstant or linear sweep
DC voltage, superimposed AC voltage, frequency,
waveform Step sync output, 2 bits
DC current, superimposed AC current, frequency,
waveform Step sync output, 2 bits
1 to 999, or continuous
Starts sequence.
Stops sequence.
Maintains settings at that point in time.
The operation resumes at sequence start.
Branches to the specified step.

*1: If a sine wave or square wave is selected as the waveform, the waveform cannot be changed
during the sequence. If arbitrary waveform is selected, an arbitrary wave can be specified foreach step.

8.8 Arbitrary Waveform Memory
The arbitrary waveform memory is memory for the superimposed AC of the internal signal source. It
is battery backed up.
Write to arbitrary waveform memory from the operation panel is not possible. Write is performed via
the USB interface.
Item
Number of waveform memories
Waveform length
Waveform data

Description
161024 words
16 bit8-10

BP4640/BP4650

8.9

Setting Memory

8.9 Setting Memory
Settings are backed up and the settings that were applied the previous time this product was powered
off can be restored the next time is powered on. However, the selected response characteristics are
not saved. Moreover, among the various settings, the basic settings (operation mode, DC,superimposed AC, output limiters) can be saved to store/recall memories No. 1 to No. 30, and thesaved settings can be called and used.
The store/recall memory call operation is possible only when the output is off.

8.10 Protective Functions
Item

Description

Output overload

Power supply anomaly
Internal overheating
Operation panel anomaly

If output voltage over, output current over, or internal output loss over isdetected, overload is displayed on the panel screen, and the output
voltage or current is reduced. If the overload status continues 10 or moreseconds, the output is switched off.
Upon anomaly detection, the output and power are both switched off.
Upon anomaly detection, the output and power are both switched off.
Upon detection of an operation panel anomaly such as the operation
panel being disconnected from the main unit, the output and power areboth switched off.

8.11 General
Item
LCD
displaysettings
Beep

Contrast
Display color

Keylock

Output setting at power-on

Response characteristics setting at
power-onReset function
Self-diagnosis function

Description
Adjustable
Blue or white
On or off
If on, a beep is emitted during key operation andmalfunction. A warning sound is emitted upon overload
detection, regardless of this setting.
On or off
In the on status, only keylock off operation and output
off operation are possible.
On or off
When on, the output is automatically switched on at
power-on.
On or off
When on, the response characteristics are automatically
set to adjusted characteristics at power-on.
Returns the basic settings to the factory default settings.
Performs check of each memory at power-on.

8-11

BP4640/BP4650

8.12

External Control I/O

8.12 External Control I/O
Item

Description

External control operation mode
Control input
Input level
Non-destructive max.
input
Input impedance
Detection cycle
Control items

Enabled or disabled (Status output is always on.)High level:+4.0 V or higher, Low level: +1.0 V or lower

Status output

Output level
Output impedance
Switching cycle
Status items

Terminal+10 V/5 V
Pulled up to +5 V with 47 k
2 ms
Output OFF
Output off at fall
Output ON
Output on at fall
Sequence start
Sequence start at fall
Sequence stop
Sequence stop at fall
Hold input
Hold at fall
Branch input 0, 1
Branch start at fall
0/+5 V (open)
100 
0.1 msPower on/off status
0-OFF, 1-ON
Output on/off status
0-OFF, 1-ON
Overload
0-Normal, 1-Overload
Software busy
0-Normal, 1-Busy
Sequence operation step sync
0, 1 (selectable)
outputD-sub 25-pin multi connector(rear panel, female, M2.6 screw)

8.13 USB Interface
A USB interface is provided for performing control from an external computer.
Item
Interface standard
USB ID
USBTMC
USB488Description
USB 1.1, USBTMC / USB488
USB ID has been assigned to each instrument
1 to 65534

8-12

BP4640/BP4650

8.14

Power Input

8.14 Power Input
Either three-phase three-wire input (3P3W) or three-phase four-wire input (3P4W) can be chosenwhen ordering.
Item

BP4640BP4650Three-phase three-wire input (3P3W)
200 V to 230 V 10 %, with limited to 250 V or lower
Power input voltage range

Three-phase four-wire input (3P4W)
380 V (phase voltage 220 V) 15 %,with limited to 433 V (phase voltage: 250 V) or lower

Power supply frequency range

50/60 Hz ±2 Hz

Power supply input terminal (rear)

M8 screw

Power factor *1

Approximately 0.93

Power consumption *1

4.8 kVA

Overvoltage category

II

6 kVA

*1: Power input voltage 200 V (3P3W) or 380 V (3P4W), CV mode, only DC 60 V output

8.15 Withstand Voltage, Insulation ResistanceItem
Withstand voltage
Insulation resistanceDescription
AC 1500 V
10 M or higher (DC 500 V)

Power supply input terminals in batch vs. Other terminals and chassis in batch

8.16 Ambient Temperature Range and Ambient Humidity
Range
Item
Operating environment
Altitude
Performance guarantee *1
Storage conditions *2
Pollution degree

Description
Indoor use
Up to 2,000 m+5 to +35 C/5 to 85 %RH
10 to +50 C/5 to 95 %RH
2*1: However, the absolute humidity must be 1 to 25 g/m3, with no condensation*2: However, the absolute humidity must be 1 to 29 g/m3, with no condensation

8-13

BP4640/BP4650

8.17

External Dimensions and Weight

%RH
90
80

Performanceassurance

Storage

70
60
50
40
30
20
10
0
10

Figure 8-1.

0

10

20

30

40

50C

Ambient Temperature and Humidity Ranges

8.17 External Dimensions and Weight
Item
External dimensions(Width  Height  Depth,
not including projections)
Weight

BP4640BP4650505×1150×700 mm

Approximately 165 kg

Approximately 180 kg

8.18 EMC
Compliant with the following standard requirement (only if the power input is three-phase four-wire
input)KN 11 (Group 1, Class A)
KN 61000-6-2
The following phenomena may occur if this product is exposed to a strong radiated radio frequency
electromagnetic field or a strong radio frequency conducted disturbance.
・Indication malfunction of measured values or LED
・The monitor output fluctuation
・The current limiter operation
Electromagnetic emissions from this product may interfere with reception of radio and television
broadcasts. Unless the user takes special measures to reduce electromagnetic emissions, using thisproduct in a residential area must be avoided.
For compliant manufacturing lot, please contact us or our agent.

8-14

BP4640/BP4650

8.19

Option8.19 Option
Option name
Replacement Air Filter
PA-001-3023 (1S)

Description

Remarks

A replacement air filter. The quantity required per

On order andproduct is 1 and 4 in order from top to bottom.

after purchase

Fixing Bracket (BP4640/4650)

The fixing bracket is a set of brackets used to fix theOn order andPA-001-3027

product on floors.

after purchase

PA-001-3024 (2S)

(Reference) The type and use of air filters are following.

1 Air Filter 1S
4 Air Filters 2S

8.20 Output Voltage and Output Current Supply Ranges
The supply range differs depending on the positive and negative output voltage limiter settings (+Vo
limit, Vo limit).
The DC output range figures (Figures 8-2 to 8-5) show the relationship between the ouputtable
voltage and current for DC. These figures also show the outputtable ranges for the voltage andcurrent including DC offset for AC of 500 Hz and lower.
The AC output range figures (Figures 8-6 to 8-9) show the relationship between the outputtable DC
voltage and peak current. However, the maximum time interval during which the peak current can be
output is 4 ms.
All values in these figures are for reference only.
The horizontal axes of the figures of DC and AC output range is the ratio (%) to the following
current value.
Current IO (at 100 %)Item
Current IO

BP4640BP4650

40 A

50 A

8-15

BP4640/BP4650

8.20

Output Voltage and Output Current Supply Ranges

+Vo

-Vo

limit

limit

(V)

(V)

<1> +117-7<3><2> +102-22<4><3> +82-42<5><4> +62-62<6><5> +42-82<6> +22

-102

<7>

-117

DC output range
When [+Vo limit] - [-Vo limit] = 124 V (constant)
120

Vo(V)

<1>
<2>

100
80
60
40
20

<7>

0
-120

-100

-80

-60<1> -40
<2>

-20

0

20

40

60

80

100

120

Io(%)

+7

-40

<3>

-60

<4>

-80

<5>

-100

<6>

-120

<7>

Figure 8-2.

-20

DC Output Range (When Positive/Negative Voltage Limiter Setting
Difference Is Fixed to 124 V)

+Vo

-Vo

limit

limit

(V)

(V)

<1>

<1> +62-62<2><2> +52-52<3> +42-42<4> +32-32<5> +22-22<6> +12-12

DC output range
When [+Vo limit] = -[-Vo limit] (constant)

-120

-100

-80

-60

-40
<6>
<5>
<4>
<3>
<2>
<1>

Vo(V)
70
60
50
40
30
20
10
0
-20 -10 0
20
-20
-30
-40
-50
-60
-70

<3>
<4>
<5>
<6>
40

60

80

100

120

Io(%)

Figure 8-3. DC Output Range (When Positive/Negative Voltage Limiter Settings Are
Symmetric)

8-16

BP4640/BP4650

8.20

Output Voltage and Output Current Supply Ranges

+Vo

-Vo

limit

limit

(V)

(V)

<1> +117-7<2> +102-7<3> +82-7<4> +62-7<5> +42-7<6> +22-7

DC output range
When [-Vo limit] = -7 V (constant)

-120

-100

-80

Figure 8-4.

-60

-40

Vo(V)
120
110
100
90
80
70
60
50
40
30
20
10
0
-20 -10 0
20
-20

<1>
<2>
<3>
<4>
<5>
<6>

40

60

80

100

120

Io(%)

DC Output Range (When Negative Voltage Limiter Setting Is Fixed to 7 V)

+Vo

-Vo

limit

limit

(V)

(V)

<1>

+7

-117

<2>

+7

-102

<3>

+7

-82

<4>

+7

-62

<5>

+7

-42

<6>

+7

-22

DC output range
When [+Vo limit] = +7 V (constant)

-120

-100

-80

Figure 8-5.

-60

-40

Vo(V)
20
10
0
-20 -10 0
20
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120

40

60

80

100

120

Io(%)
<6>
<5>
<4>
<3>
<2>
<1>

DC Output Voltage (When Positive Voltage Limiter Setting Is Fixed to +7 V)

8-17

BP4640/BP4650

8.20

Output Voltage and Output Current Supply Ranges

+Vo

-Vo

limit

limit

(V)

(V)

<1> +117-7<2> +102-22<4><3> +82

-42

40

<5>

<4> +62

-62

20

<6>
<7>

<5> +42-82<6> +22

-102

<7>

-117

AC output range
When [+Vo limit]-[-Vo limit] = 124 V (constant)
120

Vo(V)

<1>
<2>

100

<3>

80
60

0
-160 -140 -120 -100 -80 -60<1>-40 -20 0
-20
<2>
<3>
<4>
<5>
<6>
<7>

20

40

60

80

100 120 140 160

Io(%)

+7

-40
-60
-80
-100
-120

Figure 8-6. AC Output Range (When Positive/Negative Voltage Limiter Setting
Difference Is Fixed to 124 V)

+Vo

-Vo

limit

limit

(V)

(V)

<1>

<1> +62-62<2><2> +52-52<3> +42-42<4> +32-32<5> +22-22<6> +12-12

AC output range
When [+Vo limit] = -[-Vo limit] (constant)
Vo(V)
70
60
50
40
30
20
10
0
-160 -140 -120 -100 -80 -60 -40 -20
20
-10 0
<6>
-20
<5>
-30
<4>
-40
<3>
-50
<2>
-60
<1>
-70

<3>
<4>
<5>
<6>
40

60

80

100 120 140 160

Io(%)

Figure 8-7. AC Output Range (When Positive/Negative Voltage Limiter Settings
Are Symmetrical)

8-18

BP4640/BP4650

8.20

Output Voltage and Output Current Supply Ranges

+Vo

-Vo

limit

limit

(V)

(V)

<1> +117-7<2> +102-7<3> +82-7<4> +62-7<5> +42-7<6> +22-7

AC output range
When [-Vo limit] = -7 V (constant)
Vo(V)
120
110
100
90
80
70
60
50
40
30
20
10
0
-160 -140 -120 -100 -80 -60 -40 -20
20
-10 0
-20

Figure 8-8.

<1>
<2>
<3>
<4>
<1>

<5>

<2>

<6>

<3>
40

60

80

100 120 140 160

Io(%)

AC Output Range (When Negative Voltage Limiter Setting Is Fixed to 7 V)

+Vo

-Vo

limit

limit

(V)

(V)

<1>

+7

-117

<2>

+7

-102

<3>

+7

-82

<4>

+7

-62

<5>

+7

-42

<6>

+7

-22

AC output range
When [+Vo limit] = +7 V (constant)
Vo(V)
20
10
0
-160 -140 -120 -100 -80 -60 -40 -20
0
20
-10
<3>
-20
<2>
-30
-40
<1>
-50
-60
-70
-80
-90
-100
-110
-120

Figure 8-9.

40

60

80

100 120 140 160

Io(%)
<6>
<5>
<4>
<3>
<2>
<1>

AC Output Range (When Positive Voltage Limiter Setting Is Fixed to +7 V)

8-19

BP4640/BP4650

Built-in
air filter

Front viewOperation panel
with adjustable
angle

Figure 8-10.

8-20
Side view
Swivel caster

Rear Fixed caster

Stopper (Adjuster foot type)Rear view

8.21
Drawing of External Dimensions

8.21 Drawing of External Dimensions

Drawing of External Dimension

BP4640/BP4650

9. INITIAL SETTING LIST
9.1

Initial Setting List ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 9-2

9-1

BP4640/BP4650

9.1

Initial Setting List

9.1 Initial Setting List
“” indicates the fact that the initial setting is applied. “-” indicates that the setting until now ismaintained.
Table 9-1.

Setting Memory(1/2)

Setting Item

Initial ValueAt Shipping

CV-INT

Backup value

Depends on
output on/off
setting at
power-on(Reset is possible
only when output
is off)OFF

Depends on
response
calibrator on/off
setting at
power-onDC voltage

0.00 V

Backup value

DC current

0.00 A

Backup valueSuperimposed AC voltage

0.0 Vp-p

Backup valueSuperimposed AC current

0.0 Ap-p

Backup value

Frequency

50.0 Hz

Backup value

Waveform

SINBackup value+ voltage limiter

62.0 V

Backup value voltage limiter62.0 V

Backup value

Backup value

Backup value

Operation mode
OutputOFF

Response calibrator+ current limiter current limiter

104 A (BP4640)
130 A (BP4650)
104 A (BP4640)
130 A (BP4650)

At Power-on

After Reset

INTERFACE

USBTMC

Backup value

USB488 ID

2

Backup value

KeylockOFFBackup value



Beep

ON



Backup value

Backup value

LCD contrast

55

LCD display color

BLUE



Backup value

Frequency unitHz

Backup valueTime unitsBackup value

Output on/off at power-onOFFBackup value

Response calibrator on/off at
power-onOFFBackup value

DISABLE

Backup valueExternal control input
enable/disable

9-2

BP4640/BP4650

9.1

Initial Setting List
(2/2)

Setting Item

Initial ValueAt Shipping

At Power-on

After Reset

2 (ARB1)







179







255







0







Operation event enable register

20482







Warning event enable register

1







Overload transition filter

0







Overload event enable register

1







OFF







Arbitrary waveform transmit/receive,
control memory specification
SRQ enable register
Standard event status enableregister
Operation transition filter

Header on/off

Table 9-2.
Setting ItemStore/Recall Memory (All Memories)
Initial ValueAt Shipping

At Power-on

After Clearing

Operation mode

CV-INT

Backup valueDC voltage

0.00 V

Backup value

DC current

0.00 A

Backup valueSuperimposed AC voltage

0.0 Vp-p

Backup valueSuperimposed AC current

0.0 Ap-p

Backup value

Frequency

50.0 Hz

Backup value

Waveform

SINBackup value+ voltage limiter

62.0 V

Backup value voltage limiter62.0 V

Backup value

Backup value

Backup value+ current limiter current limiter

104 A (BP4640)
130 A (BP4650)
104 A (BP4640)
130 A (BP4650)

Table 9-3.
Setting Item

Arbitrary Waveform Memory

Initial ValueAt Shipping

At Power-on

After Clearing

ARB1 to ARB8Sine wave dataBackup value

ARB9 to ARB12

Square wave dataBackup value

ARB13 to ARB16

Triangular waveBackup value

9-3

BP4640/BP4650

9.1
Table 9-4.
Setting Item

Initial Setting List

Sequence Memory (All Steps)

Initial ValueAt Shipping

At Power-on

After Reset

Step number specification

1







Step time

0.1000 sBackup valueDC voltage

0.00 V

Backup value

DC current

0.00 A

Backup valueDC voltage/current operation type

CONST



Backup valueSuperimposed AC voltage

0.0 Vp-p

Backup valueSuperimposed AC current

0.0 Ap-p

Backup value



CONST



Backup value

Backup value



CONST



Backup value



SIN



Backup value



CONST



Backup value



0, 0



Backup valueStep sync output operation type

CONST



Backup valueStep end phase

DISABLE

Backup valueStep termination

STOP



Backup valueSuperimposed AC voltage/ current
operation type
Frequency

50.0 Hz

Frequency operation type
Waveform
Waveform operation type
Step sync output

Jump step0Backup valueJump count1Backup valueBranch step 0

0 (invalid)Backup valueBranch step 1

0 (invalid)Backup value

9-4

BP4640/BP4650

ーーーー WARRANTY ーーーー
NF Corporation certifies that this product was thoroughly tested and inspected and found tomeet its published specifications when it was shipped from our factory. In the unlikely event thatyou experience an issue during use, please contact our company or agency of our company
from which you purchased the product.
All NF products are warranted against defects in materials and workmanship for a period of one
year from the date of shipment. During the warranty period, NF will repair the defective productwithout any charge for the parts and labor.
For repair service under warranty, the product must be returned to either NF or an agent
designated by NF. The Purchaser shall prepay all shipping cost, duties and taxes for the
product to NF from another country, and NF shall pay shipping charges to return the product tothe purchaser.
This warranty shall not apply when corresponding to following particulars.
A) Failure caused by improper handling or use of the product in a manner that does notconform with the provisions of the Instruction Manual.
B) Failure or damage caused by transport, dropping, or other handling of the product after
purchase.
C) Failure caused by repair, adjustment, or modification of the product by a company,
organization, or individual not approved by NF.
D) Failure caused by abnormal voltage or the influence of equipment connected to thisproduct.
E) Failure caused by the influence of supply parts from the customer.
F) Failure caused by such as corrosion that originate in the use of causticity gas, organic
solvent, and chemical.
G) Failure caused by the insect or small animal that invaded from the outside.
H) Failure or damage caused by fire, earthquakes, flood damage, lightning, war, or otheruncontrollable accident.
I) Failure caused by the reason that was not able to be foreseen by the science andtechnology level when shipped from our company.
J) Replacement and replenishment of consumables such as batteries.

NF Corporation

WABUN(DA00059420-004)

If there are any misplaced or missing pages, we will replace the manual.

Contact thesales representative.
NOTES:• Reproduction of the contents of this manual is forbidden by applicable laws.
• The contents of this manual may be revised without notice.
• Information provided in this manual is intended to be accurate and reliable. However,
we assume no responsibility for any damage regarding the contents of this manual.
• We assume no responsibility for influences resulting from the operations in thismanual.
Copyright 2017-2022, NF Corporation
BP4640 / BP4650 Instruction Manual

NF Corporation
6-3-20, Tsunashima Higashi, Kohoku-ku, Yokohama
223-8508 JAPAN
Phone +81-45-545-8128 Fax +81-45-545-8187

http://www.nfcorp.co.jp/

NF Corporation
6-3-20, Tsunashima-higashi, Kohoku-ku, Yokohama 223-8508 JAPAN