LOW NOISE DC VOLTAGE SOURCE

LP6016-01P
INSTRUCTION MANUALNF Corporation

DA00072660-002

LOW NOISE DC VOLTAGE SOURCE

LP6016-01P
INSTRUCTION MANUAL

----- Preface ----Thank you for purchasing the "LP6016-01P LOW NOISE DC VOLTAGE SOURCE".
For safe and correct use of this product, please read the following "Safety Precautions" section before
attempting to use this product.
■ Marks and symbols
For safe operation and prevent damage to this product, please note the following marks and symbols
that are used in this manual.

WARNING
This mark indicates information for preventing the possibility of death or serious
personal injury from electrical shock or other hazards or damage to this product whenusing or handling it.
!

CAUTION
This mark indicates information for preventing the possibility of injury to the user or
damage to this product when handling it.

■ The chapter structure of this manual is described below.
If you are using this product for the first time, begin reading from Chapter 1.
1.

OutlineThis chapter gives an overview and describes the features and simple operation principles of thisproduct.

2.

Preparation before use
This chapter describes important preparation before installation and operation.

3.

Explanations of the panel
This chapter explains the names and functions of each part on the panel. Please read it while
operating this product.

4.

Operation procedure
This chapter explains the functions and operating procedure of each part on the panel. Please
read it while operating this product.

5.

Remote control
This chapter explains remote control with each interface.

6.

TroubleshootingThis chapter describes how to handle error messages and cases in which you think the product ismalfunctioning.

7.

MaintenanceThis chapter explains maintenance, repacking, transportation, and performance-testing methods.

8.

Specifications
This chapter describes the product specifications (functions and performance).

9.

Typical data
This chapter describes the typical data of the major specification items.
I

LP6016-01P

----- Safety Precautions ----For safe use of this product, be sure to comply with the following warnings and cautions.
NF Corporation shall not be held liable for damages that arise from failure to obey these warnings
and cautions.
This product is a Class I equipment (with protective conductor terminal) that conforms to the JIS andIEC standards.
■ Ensure that you comply with the instructions in this instruction manualThis instruction manual contains information for the safe operation and use of this product.
Please read this manual before using this product.
All the warning items contained in this instruction manual are intended for preventing risks that
may lead to serious accidents. Ensure that you comply with them.
■ Ensure that this product is grounded
There is risk of electrical shock if this product is not grounded.
To prevent electrical shock accidents, connect this product to an earth ground so that groundresistance is 100 Ω or less.
This product is automatically grounded by connecting a 3-pole power plug to a power outlet with aprotective ground contact.
This product does not come with a 3-pole to 2-pole conversion adapter.
If you must use a 3-pole to 2-pole conversion adapter, be sure to connect the ground line of theadapter to a suitable ground near the power outlet.
■ Check the power supply voltage
This product operates on the power supply voltage described in "2.3 Grounding and Power
Connections".
This product has a power-supply-voltage-select function. Before connecting to the outlet, checkthat the set power supply voltage matches the voltage of the outlet.
■ Observe the rating of the fuse
Failure to do so may cause fire or other accidents. Use a fuse with the rating specified in "2.3
Grounding and Power Connections".
When replacing the fuse, be sure to disconnect the power plug from the outlet.
■ If you notice something wrong
If smoke, an unusual odor, or sound comes from this product, immediately remove the power cordfrom the outlet and cease use.
If any such abnormality occurs, take measures to prevent the use of this product and promptly
contact NF Corporation or an authorized agent. Never use it until the repair is completed.

II

LP6016-01P

Safety Precautions■ Do not use in an explosive atmosphereThis may cause an explosion.
■ Do not open the case of this productTo prevent exposure to high voltages, never open the case of this product.
Even when inspection inside of this product is needed, only service engineers certified by NF
Corporation should touch the inside.
■ Do not modify this product
Never modify this product in any way. Modification might create new risks. NF Corporation may
refuse to service the product if it has an unauthorized modification.
■ Do not expose this product to water
When this product is used under wet conditions, it may cause an electric shock or fire.
If this product becomes wet, immediately disconnect the power plug from the outlet and contact
NF Corporation or an authorized agent.
■ If lightning occurs nearby, turn off the power switch and disconnect the power plug
Lightning strikes may cause electric shock, fire, or product malfunction.
■ Safety-related symbols
The marks and codes defined below are used in this manual or on this product to indicate safety
information or instructions.

！

Instruction manual reference symbolThis notifies the user of a potential hazard and indicates that the user mustrefer to the instruction manual.
Electric shock danger symbolThis indicates a location that presents a risk of electric shock under
specific conditions.

！ WARNING

Warning symbolThis contains information to avoid risks when handling this product that
could result in the death or serious injury of the user.

！ CAUTION

Caution symbolThis contains information to avoid risks when handling this product that
could result in minor or moderate injury of the user or damage to property.

III

LP6016-01P

Safety Precautions■ Other symbols
Indicates the "ON" position of the power switch.
Indicates the "OFF" position of the power switch.
Indicates that it is connected to the product enclosure (ground).
Indicates that it is connected to the output common (COM).
42Vpk

Indicates that it is isolated from the product enclosure (ground).
However, safe operation of this product requires that the potential difference
from the ground is restricted to 42 Vpk or less.

■Regarding disposal
Pay attention to the following contents when disposing of this product for environmental
conservation.
a) Dispose this product through a dealer handling industrial waste.
b) This product does not contain batteries.
c) This product does not contain mercury.

IV

LP6016-01P

Contents
Page
1.

Outline ..................................................................................................................... 1-1

1.1

Overview .................................................................................................................. 1-2

1.2

Features................................................................................................................... 1-2

1.3

Operation principles ................................................................................................. 1-2

1.4

Block diagram .......................................................................................................... 1-3

2.

Preparation before use ............................................................................................ 2-1

2.1

Checking before use ................................................................................................ 2-2

2.2

Installation ............................................................................................................... 2-3

2.2.1

General cautions ...................................................................................................... 2-3

2.2.2

Installation environment ........................................................................................... 2-3

2.2.3

Rack mounting ......................................................................................................... 2-4

2.3

Grounding and Power Connections........................................................................ 2-13

2.4

Quick operation check ........................................................................................... 2-16

2.4.1

Check operation at power on ................................................................................. 2-16

2.4.2

Check the output voltage ....................................................................................... 2-17

3.

Explanations of the panel ......................................................................................... 3-1

3.1

Name of each part of the panels .............................................................................. 3-2

3.1.1

Front panel............................................................................................................... 3-2

3.1.2

Rear panel ............................................................................................................... 3-2

3.2

Function of each part of the panels .......................................................................... 3-3

3.2.1

Front panel............................................................................................................... 3-3

3.2.2

Rear panel ............................................................................................................... 3-4

4.

Operation procedure ................................................................................................ 4-1

4.1

Display and operation for powering up ..................................................................... 4-2

4.1.1

What to check before turning the power on .............................................................. 4-2

4.1.2

Turning power on and off ......................................................................................... 4-2

4.1.3

Setting at power on .................................................................................................. 4-2

4.1.4

Startup behavior and display .................................................................................... 4-2

4.1.5

Warm-up time .......................................................................................................... 4-2

4.2

The list of panel operations and functions ................................................................ 4-3

4.2.1

Basic panel operation and display examples ........................................................... 4-4

4.2.2

Setting the output voltage (VOLTAGE) ..................................................................... 4-7

4.2.3

Setting the limit voltage (LIMIT) ............................................................................... 4-8

4.2.4

Setting of the remote control (INTERFACE) ............................................................. 4-9

4.2.5

Others (UTILITY) ................................................................................................... 4-17

4.3

Operations no included in the menu tree ............................................................... 4-24

4.3.1

Switching the output on and off .............................................................................. 4-24

4.3.2

Switching from remote control state to local operation state .................................. 4-24

4.3.3

Initialization of the LCD setting .............................................................................. 4-24

4.4

Connection notes ................................................................................................... 4-25

4.4.1

Output connection .................................................................................................. 4-25
V

LP6016-01P

Contents
4.4.2

Current-monitor connection .................................................................................... 4-25

5.

Remote control ........................................................................................................ 5-1

5.1

Preparations before remote control .......................................................................... 5-2

5.1.1

Select the remote control interface .......................................................................... 5-2

5.1.2

USB interface ........................................................................................................... 5-2

5.1.3

RS-232 interface ...................................................................................................... 5-4

5.1.4

LAN interface ........................................................................................................... 5-6

5.1.5

Precautions for remote control ................................................................................. 5-8

5.2

Changing of remote control and local operation states ............................................ 5-8

5.3

Commands .............................................................................................................. 5-9

5.3.1

Parameter Formats .................................................................................................. 5-9

5.3.2

Symbols ................................................................................................................... 5-9

5.3.3

Input format.............................................................................................................. 5-9

5.4

Command explanations ......................................................................................... 5-10

5.4.1

Switch output on/off ............................................................................................... 5-10

5.4.2

Output voltage (Voltage) ........................................................................................ 5-11

5.4.3

Limit voltage (LIMIT) .............................................................................................. 5-11

5.4.4

Output mode (Vout MODE) .................................................................................... 5-12

5.4.5

Voltage setting mode (Vset MODE) ....................................................................... 5-12

5.4.6

The output state at startup (POW ON Vout) ........................................................... 5-13

5.4.7

Brightness of the LCD (LCD LIGHT) ...................................................................... 5-14

5.4.8

Contrast of the LCD (LCD CONTRAST)................................................................. 5-14

5.4.9

Query the abnormal state....................................................................................... 5-15

5.4.10

Query the error queue ............................................................................................ 5-15

5.4.11

Clear the error queue ............................................................................................. 5-15

5.4.12

Query the product information ................................................................................ 5-16

5.4.13

Reset (Initialize) ..................................................................................................... 5-16

5.4.14

Switching from remote control state to local operation state .................................. 5-16

6.

Troubleshooting ....................................................................................................... 6-1

6.1

Error messages........................................................................................................ 6-2

6.2

Quick diagnosis ....................................................................................................... 6-6

7.

Maintenance ............................................................................................................ 7-1

7.1

Introduction .............................................................................................................. 7-2

7.2

Daily maintenance ................................................................................................... 7-2

7.3

Storage, repacking, and transportation .................................................................... 7-2

7.4

Check the firmware version number ......................................................................... 7-3

7.5

Performance testing ................................................................................................. 7-4

7.5.1

Introduction .............................................................................................................. 7-4

7.5.2

Testing output voltage setting accuracy ................................................................... 7-5

7.5.3

Testing line regulation .............................................................................................. 7-6

7.5.4

Testing load regulation ............................................................................................. 7-7

7.5.5

Testing current-monitor accuracy ............................................................................. 7-8
VI

LP6016-01P

Contents
7.6

Calibration ............................................................................................................... 7-9

8.

Specifications ........................................................................................................... 8-1

8.1

Regulator type ......................................................................................................... 8-2

8.2

Output characteristics .............................................................................................. 8-2

8.3

Limit function of setting output voltage ..................................................................... 8-3

8.4

Current monitor ........................................................................................................ 8-3

8.5

Power supply ........................................................................................................... 8-3

8.6

Interface for remote control ...................................................................................... 8-4

8.7

Others ...................................................................................................................... 8-4

8.7.1

Output common terminal (COM) .............................................................................. 8-4

8.7.2

Enclosure terminal (CHASSIS) ................................................................................ 8-4

8.7.3

Insulation resistance ................................................................................................ 8-4

8.7.4

Withstanding voltage ................................................................................................ 8-4

8.7.5

Protection function ................................................................................................... 8-5

8.7.6

Setting of power on .................................................................................................. 8-5

8.7.7

Environmental conditions ......................................................................................... 8-5

8.7.8

Dimensions and weight ............................................................................................ 8-5

8.7.9Standards ................................................................................................................ 8-5

8.8External dimensions ................................................................................................. 8-6

9.

Typical data.............................................................................................................. 9-1

9.1

Typical data.............................................................................................................. 9-2

9.2

Output noise voltage density frequency characteristics ............................................ 9-2

9.3

Time stability ............................................................................................................ 9-3

9.4

Temperature coefficients .......................................................................................... 9-4

VII

LP6016-01P

Figures
Page
Figure 1-1 Block diagram ....................................................................................................... 1-3
Figure 2-1 Assembly diagram of rack mounting kit (EIA for 1 unit) ......................................... 2-5
Figure 2-2 Assembly diagram of rack mounting kit(EIA for 2 units) ..................................... 2-6

Figure 2-3 Assembly diagram of rack mounting kit (JIS for 1 unit) ......................................... 2-7
Figure 2-4 Assembly digagram of rack mounting kit (JIS for 2 units) ...................................... 2-8
Figure 2-5 Dimensions of rack mounting kit (EIA for 1 unit) ................................................... 2-9
Figure 2-6 Dimensions of rack mounting kit (EIA for 2 units) ................................................ 2-10
Figure 2-7 Dimensions of rack mounting kit (JIS for 1 unit) .................................................. 2-11
Figure 2-8 Dimensions of rack mounting kit (JIS for 2 units) ................................................ 2-12
Figure 2-9 Appearance of fuse holder and direction of fuse insertion ................................... 2-15
Figure 2-10 LCD example at startup .................................................................................... 2-16
Figure 2-11 Initial display of LCD example ........................................................................... 2-16
Figure 2-12 Connection when checking output voltage ........................................................ 2-17
Figure 3-1 Front panel ........................................................................................................... 3-2
Figure 3-2 Rear panel ............................................................................................................ 3-2
Figure 4-1 Display example at startup.................................................................................... 4-2
Figure 4-2 Initial display of LCD example ............................................................................... 4-2
Figure 4-3 Panel operation menu tree.................................................................................... 4-3
Figure 4-4 Cursor display example-1 ..................................................................................... 4-4
Figure 4-5 Cursor display example-2 ..................................................................................... 4-4
Figure 4-6 Initial display example........................................................................................... 4-4
Figure 4-7 Top menu display example ................................................................................... 4-5
Figure 4-8 Display example of output voltage setting menu ................................................... 4-5
Figure 4-9 Display example when setting the V2 limit voltage................................................ 4-6
Figure 4-10 Display example when setting the V2 limit voltage (when press up key) ............. 4-6
Figure 4-11 Display example when setting the V2 limit voltage (when press down key) ........ 4-6
Figure 4-12 Display example when setting the V2 limit voltage (when press left key) ............ 4-6
Figure 4-13 Display example when setting the V2 limit voltage (when press right key) .......... 4-6
Figure 4-14 Display example when setting the V1 output voltage .......................................... 4-7
Figure 4-15 Display example when setting the limit voltage ................................................... 4-8
Figure 4-16 Display example of setting the remote control .................................................... 4-9
Figure 4-17 Display example after selecting USB .................................................................. 4-9
Figure 4-18 Example to indicate VENDOR ID ........................................................................ 4-9
Figure 4-19 Example to indicate PRODUCT ID .................................................................... 4-10
Figure 4-20 Display example after selecting RS-232 ........................................................... 4-11
Figure 4-21 Display example when setting the baud rate ..................................................... 4-11
Figure 4-22 Display example when setting the parity ........................................................... 4-12
Figure 4-23 Display example when setting the handshake .................................................. 4-12
Figure 4-24 Display example when setting the terminator .................................................... 4-13
Figure 4-25 Display example after selecting LAN ................................................................ 4-14
Figure 4-26 Display example when updating settings .......................................................... 4-14
VIII

LP6016-01P

Figures
Figure 4-27 Example to indicate the MAC address .............................................................. 4-14
Figure 4-28 Display example when setting the IP address ................................................... 4-15
Figure 4-29 Display example when setting subnet mask...................................................... 4-15
Figure 4-30 Display example when setting default gateway ................................................. 4-15
Figure 4-31 Display example when updating settings .......................................................... 4-15
Figure 4-32 Example to indicate the port number ................................................................ 4-16
Figure 4-33 Display example of UTILITY menu-1 ................................................................ 4-17
Figure 4-34 Display example of UTILITY menu-2 ................................................................ 4-17
Figure 4-35 Display example when setting “Vout MODE”..................................................... 4-17
Figure 4-36 Display example when setting “Vset MODE”..................................................... 4-18
Figure 4-37 Display example when setting “POW ON Vout” ................................................ 4-19
Figure 4-38 Display example when setting “LCD LIGHT” ..................................................... 4-19
Figure 4-39 Display example when setting “LCD CONTRAST” ............................................ 4-20
Figure 4-40 Display example of “INITIALIZE” menu ............................................................. 4-21
Figure 4-41 Example to indicate the product information (model) ........................................ 4-22
Figure 4-42 Example to indicate the product information (serial number) ............................ 4-22
Figure 4-43 Example to indicate the firmware version.......................................................... 4-22
Figure 4-44 Example to indicate the last calibration date ..................................................... 4-23
Figure 5-1 Pin assignment of RS-232 connector .................................................................... 5-4
Figure 5-2 Display example during remote control ................................................................. 5-8
Figure 6-1 Display example of error message ........................................................................ 6-2
Figure 7-1 Display example at startup.................................................................................... 7-3
Figure 7-2 Display example of firmware version .................................................................... 7-3
Figure 7-3 Diagram of connection when testing voltage setting accuracy .............................. 7-5
Figure 7-4 Diagram of connection when testing line regulation .............................................. 7-6
Figure 7-5 Diagram of connection when testing load regulation ............................................. 7-7
Figure 7-6 Diagram of connection when testing current-monitor accruacy ............................. 7-8
Figure 8-1 External dimensions ............................................................................................. 8-6
Figure 9-1 Output noise voltage density frequency characteristics ........................................ 9-2
Figure 9-2 Time stability ......................................................................................................... 9-3
Figure 9-3 Temperature coefficients ....................................................................................... 9-4

IX

LP6016-01P

Tables
Page
Table 4-1 Settings after initialization .................................................................................... 4-21
Table 4-2 LCD settings after initialization ............................................................................. 4-24
Table 5-1 RS-232 pin assignment .......................................................................................... 5-4
Table 5-2 The header list of commands ............................................................................... 5-10
Table 6-1 General error list .................................................................................................... 6-2
Table 6-2 Error list of panel operation .................................................................................... 6-3
Table 6-3 Error list of internal memory ................................................................................... 6-4
Table 6-4 Error list of remote control ...................................................................................... 6-5
Table 6-5 Serious error list ..................................................................................................... 6-5
Table 6-6 Troubleshooting ...................................................................................................... 6-6
Table 7-1 Measurement instrument list .................................................................................. 7-4
Table 7-2 Judgement for voltage setting accuracy ................................................................. 7-5
Table 7-3 Judgement for line regulation ................................................................................. 7-6
Table 7-4 Judgement for load regulation ................................................................................ 7-7
Table 7-5 Judgement for current-monitor accuracy ................................................................ 7-8
Table 8-1 Fuse rating ............................................................................................................. 8-3

X

LP6016-01P

1. Outline

1.1

Overview .................................................................................................................. 1-2

1.2

Features................................................................................................................... 1-2

1.3

Operation principles ................................................................................................. 1-2

1.4

Block diagram .......................................................................................................... 1-3

1-1

LP6016-01P

1.1 Overview

1.1

Overview“LP6016-01P” is a LOW NOISE DC VOLTAGE SOURCE that achieves output noise of 10 μVrms

or lower (Bandwidth: 10 Hz to 20 MHz) and output voltage stability of ±10 ppm/C.
It has two voltage outputs. Each output voltage can be adjusted in the range of 0 to +16.1 V bymanual operation or remote PC control. The maximum output current is 100 mA.

1.2

Features(1) The output noise is ultra low with 10 μVrms or lower (Bandwidth: 10 Hz to 20 MHz).
(2) The output voltage stability is ±10 ppm/C or lower.
(3) High accuracy voltage setting with ± ( 0.03 % of setting + 250 μV) is available.
(4) Three types of remote interfaces are selectable (USB, RS-232, and LAN). And measurement
system can be configured.
(5) The output section is isolated from the chassis (±42 Vpk) to prevent GND loop generation.
(6) The power supply voltage can be selected from AC 100, 120, 220, and 240 V by using the
VOLTAGE SELECTOR switch on the rear panel.
(7) The output current can be measured using current-monitor outputs.

1.3

Operation principles
This product is constructed with an analog system using a power transformer, series regulator, andso on, so switching noise does not exist. It consists of a voltage reference and amplifier circuit with
low noise and high stability, and the output voltage is controlled by changing the reference voltage
with the D/A converter.
Although it includes a digital circuit, such as an D/A converter, and a circuit of remote control,
insulation and shield are designed so that noise caused by them are not superimposed on the output.

1-2

LP6016-01P

1.4 Block diagram

1.4

Block diagram

Figure 1-1 Block diagram

1-3

LP6016-01P

2. Preparation before use

2.1

Checking before use ................................................................................................ 2-2

2.2

Installation ............................................................................................................... 2-3

2.2.1

General cautions ...................................................................................................... 2-3

2.2.2

Installation environment ........................................................................................... 2-3

2.2.3

Rack mounting ......................................................................................................... 2-4

2.3

Grounding and Power Connections........................................................................ 2-13

2.4

Quick operation check ........................................................................................... 2-16

2.4.1

Check operation at power on ................................................................................. 2-16

2.4.2

Check the output voltage ....................................................................................... 2-17

2-1

LP6016-01P

2.1 Checking before use

2.1

Checking before use■ Safety check
To ensure safe use, read the following sections of this instruction manual.
● "Safety Precautions" (at the beginning of this instruction manual)● "2.3 Grounding and Power Connections"■ Check the appearance and accessories
If there is an abnormal appearance (scratches, dents, etc.) on the outside of the cardboard box,

check whether this product is affected when removing the product from the box.
When you have removed the contents from the packing box, check their condition.
If you find a scratch on this product or an accessory is missing, contact NF Corporation or an
authorized agent.
● Appearance check
Check that there are no scratches or dents on the panel surfaces, connectors, etc.
● Product configuration check
The following shows the product configuration. Check that the quantities are correct
and there are no scratches.
● LP6016-01P Main unit ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 1● Accessories
Instruction manual ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 1
Power cord set (2 m, 3-pole) ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 1
Fuse (spare) ····················································································· 1● Options
PA-001-3089: BNC - Binding post conversion adaptor
PA-001-3230: Rack mount kit (EIA, for 1 unit)
PA-001-3090: Rack mount kit (EIA, for 2 units)
PA-001-3231: Rack mount kit (JIS, for 1 unit)
PA-001-3091: Rack mount kit (JIS, for 2 units)

WARNINGTo prevent exposure to high voltages, never open the case of this product.
Even when inspection inside this product is needed, only service engineers certified by NF
Corporation should touch the inside.

2-2

LP6016-01P

2.2 Installation

2.2

Installation

2.2.1

General cautions● If you use it with the back side down or side down, it may fall over. Be sure to install it so that
all four rubber feet on the bottom come into contact with a flat surface such as a desk.
● If this product is used in a residential area, it may generate electromagnetic fields and affectother equipment. To prevent interference with reception of radio and television broadcasting,ensure appropriate measures to reduce electromagnetic radiation.
● Avoid using this product in environments where there is strong radio-frequency
electromagnetic radiation. When using this product in such environments, the noise
performance of this product may temporarily worsen.
2.2.2

Installation environment● Place this product in a location that satisfies the following conditions.
Operation: 0 to +50 °C, 5 to 85 %RH (absolute humidity 1 to 25 g/m3, nocondensation)
Storage: -10 to +60 °C, 5 to 95 %RH (absolute humidity 1 to 29 g/m3, nocondensation)● Place the product in a location at an altitude of 2000 m or less.

！ CAUTIONS

Avoid installation in the following locations.
● Where there is flammable gas
There is a risk of explosion. Never install or use it in such a location.
● Outdoors, where exposed to direct sunlight or near fire or a heat source.
The performance may not be sufficient or failure may occur.
● Where there are corrosive gases and vapors, a large amount of dust and particles, salty air, oily
smoke, metal powder, etc.
Corrosion or malfunction may occur.
● Where there is a large amount of vibration.
Malfunction or failure may occur.
● Near an electromagnetic field source, high-voltage equipment, power line, or pulse noise
source.
Malfunction or failure may occur.

2-3

LP6016-01P

2.2 Installation

2.2.3

Rack mounting

This product can be installed in an IEC or EIA standard rack, or a JIS standard rack by using theappropriate optional rack mounting kit. Rack mounting kits are available for millimeter racks (JIS)and inch racks (EIA).
First, assemble the rack mounting kit as shown in Figure 2-1 to Figure 2-8 then install the productin the rack.

WARNING
When mounting this product in a rack, be sure to use a rack rail or other means and support the
product. Failure to do so, may result in injury to yourself or damage to this product due to it falling.

！ CAUTIONSProvide sufficient ventilation holes in the rack or air cooling with a cooling fan.
If the ambient temperature exceeds the specification, performance may decrease and output may
stop due to overheat protection.

2-4

LP6016-01P

2.2 Installation

Remove the rubber feet and screws at the bottom.
4 places

No.
1
2
3

Item
L-shaped bracket
Spacer bracket
Countersunk screw (M3×8)

Remove the round seals.
4 places

Quantity
1
14

Figure 2-1 Assembly diagram of rack mounting kit (EIA for 1 unit)

2-5

LP6016-01P

2.2 Installation

4 places
Remove the round seals.
8 places
Remove the rubber feet and screws at the bottom.
8 places

No.
1
2
3
4
5

Item
L-shaped bracket-1
L-shaped bracket-2
Connection fitting
Countersunk screw (M3×8)
Countersunk screw (M3×6)

Figure 2-2 Assembly diagram of rack mounting kit

2-6

Quantity
111
44(EIA for 2 units)

LP6016-01P

2.2 Installation

Remove the rubber feet and screws at the bottom.
4 places

No.
1
2
3
4

Item
L-shaped bracket
Spacer bracket-1
Spacer bracket-2
Countersunk screw (M3×8)

Remove the round seals.
4 places

Quantity1118

Figure 2-3 Assembly diagram of rack mounting kit (JIS for 1 unit)

2-7

LP6016-01P

2.2 Installation

4 places
Remove the round seals.
8 places
Remove the rubber feet and screws at the bottom.
8 places

No.
1
2
3
4
5
6

Item
L-shaped bracket-1
L-shaped bracket-2
Spacer bracket
Connection fitting
Countersunk screw (M3×8)
Countersunk screw (M3×6)

Quantity
1
1
1
1
8
4

Figure 2-4 Assembly digagram of rack mounting kit (JIS for 2 units)

2-8

LP6016-01P

2.2 Installation

Detail A

Figure 2-5 Dimensions of rack mounting kit (EIA for 1 unit)

2-9

LP6016-01P

2.2 Installation

Detail A

Figure 2-6 Dimensions of rack mounting kit (EIA for 2 units)

2-10

LP6016-01P

2.2 Installation

Detail A

Figure 2-7 Dimensions of rack mounting kit (JIS for 1 unit)

2-11

LP6016-01P

2.2 Installation

Detail A

Figure 2-8 Dimensions of rack mounting kit (JIS for 2 units)

2-12

LP6016-01P

2.3 Grounding and Power Connections

2.3

Grounding and Power Connections■ Ensure that this product is groundedThis product is automatically grounded by connecting a 3-pole power plug to a power

outlet with a protective ground contact.
This product does not come with a 3-pole to 2-pole conversion adapter.
If you must use a 3-pole to 2-pole conversion adapter, be sure to connect the ground lineof the adapter to a suitable ground near the power outlet.

WARNING
There is risk of electrical shock if this product is not grounded.
To prevent electrical shock, connect it to an earth ground so that ground resistance is 100 Ω orless.
■ Power supply specifications
Voltage range: AC 100, 120, 220 or 240 V ±10 %, not to exceed AC 250 V.
Frequency range: 50/60 Hz ±2 Hz
Power consumption: 28 VA or lower
Overvoltage category: II■ How to switch the power supply voltage
This product has a power supply voltage selector switch on the rear panel.
Check that the voltage of the outlet matches the voltage set with the power supply
voltage selector switch.
To select the power supply voltage, disconnect the power cord then slowly turn theselector switch with a coin-driver.

！ CAUTIONS

To prevent the power supply voltage selector switch from being in a half-way position, set theswitch to the position to where it clicks.

2-13

LP6016-01P

2.3 Grounding and Power Connections■ Connecting the power supply
1) Confirm that the power supply voltage to which this product is connected is within
the specified voltage range of this product.
2) Set the power switch on the rear panel to the off position.
3) Insert the power cord into the power inlet that is on the rear panel.
4) Plug the power cord into a ground-protected power outlet.

！ CAUTIONS

The power cord set that comes with this product is intended for use only with this product.
The power cord set should not be used with any other product or for any other purpose.
When connecting this product to the power supply, be sure to use only the power cord that isprovided with this product.
■ In an emergency, the power cord can be used to disconnect this product from thepower supply.

WARNING
Confirm that there is sufficient space around the power inlet of this product to ensure that thepower cord can be removed easily.
Alternatively, plug the power cord into a power outlet that is easily accessible and has sufficientspace around it to allow easy removal of the power plug.

2-14

LP6016-01P

2.3 Grounding and Power Connections■ Observe the rating of the power fuse.
The following shows the ratings of the power fuse of this product.
100/120 V: Time lag 0.4 A, Rated voltage 250 V, ϕ 5.2 × 20 mm
220/240 V: Time lag 0.2 A, Rated voltage 250 V, ϕ 5.2 × 20 mm■ Replace the fuse
To replace the fuse, disconnect the power cord then turn the fuse holder on the rear panel
counterclockwise with a screwdriver and pull it out. Replace the old fuse with a new one, insert thefuse holder, and turn it clockwise with a screwdriver to lock it.

Fuse holder - front

Fuse holder - side

Fuse

Figure 2-9 Appearance of fuse holder and direction of fuse insertionWARNING
There is risk of fire or other accidents. Use a fuse of the same rating when replacing the old fuse.
Before replacing the fuse, be sure to disconnect the power plug from the outlet.

2-15

LP6016-01P

2.4 Quick operation check

2.4

Quick operation check
When using this product for the first time or when using it again after a long time, we recommend

checking the operation with the following procedure.
Refer to “3. Explanations of the panel” and “4. Operation procedure” for panel operation andvarious setting methods during operation check.
2.4.1

Check operation at power onWith only the power cord connected to this product, turn on the power switch on the rear panel.
The internal check at startup starts automatically, and a message is displayed on the LCD during

this check (about 3 seconds), as shown in Figure 2-10.

Figure 2-10 LCD example at startup
When the internal check is completed, a message is displayed on the LCD, as shown in Figure2-11. Check that an error message, "OHP" or "OCP", is not displayed on the LCD.
If such an error message is displayed, refer to “6.1 Error messages” and take appropriate action.

Figure 2-11 Initial display of LCD example

2-16

LP6016-01P

2.4 Quick operation check

2.4.2

Check the output voltage

For checking the output voltage, use a DC voltmeter (such as a multimeter).
In this example, check by setting both output voltages to +10.0000 V. Depending on the output
voltage to be used, set the voltage to be checked.
Connect the devices as shown in Figure 2-12. Set both output voltages to +10.0000 V and turn on
the output.
Check that the orange LED indicating that the output state is ON is lit. Also check that the voltages
measured by the DC voltmeter are about +10 V.

Figure 2-12 Connection when checking output voltage(When checking on the V2 side, connect with the broken line.)

2-17

LP6016-01P

3. Explanations of the panel

3.1

Name of each part of the panels .............................................................................. 3-2

3.1.1

Front panel............................................................................................................... 3-2

3.1.2

Rear panel ............................................................................................................... 3-2

3.2

Function of each part of the panels .......................................................................... 3-3

3.2.1

Front panel............................................................................................................... 3-3

3.2.2

Rear panel ............................................................................................................... 3-4

3-1

LP6016-01P

3.1 Name of each part of the panels

3.1

Name of each part of the panels
This section explains the names, functions, and outline of the operation of the front and rear panels.

3.1.1

Front panel5) Output common terminal

3) Current-monitor terminals
1) LCD

2) “LOCAL” key4) Voltage tracking status indicator (LED)7) Output opearation keys
6) Menu operation keys8) Output terminals

9) Output status indicators (LED)10) Output coupled status indicator (LED)

Figure 3-1 Front panel
3.1.2

Rear panel
14) Fuse holder

12) Certification label
11) Enclosure terminal

13) Power supply voltage selector

15) Power switch18) RS-232 connector17) Identification label

Figure 3-2 Rear panel
3-216) Power inlet

20) LAN connector

19) USB connector

LP6016-01P

3.2 Function of each part of the panels

3.2

Function of each part of the panels

3.2.1

Front panel

1) LCD
This displays setting menus, errors, and so on.
2) “LOCAL” key (LOCAL)
This is a key to switch from remote control state to panel operation.
3) Current-monitor terminals (V1 I MONITOR, V2 I MONITOR)
They can be used to measure output current. They output voltage with conversion gain of
1 V/100 mA.
There are two BNC receptacle connectors (V1 and V2), and their output impedance is about 1 kΩ.
Ex: When the output current is 100 mA, the output of a current-monitor terminal is 1 V.
4) Voltage tracking status indicator (LED, VOLT TRACKING)
This is a green LED indicating that the voltage setting mode (Vset MODE) is "TRACKING".
5) Output common terminal (COM)This is connected to the output common (COM) and corresponds to the banana plug of ϕ 4 mm.
Wire of ϕ 2.5 mm or less can also be connected.
6) Menu operation keys
These keys are used to make settings. There are seven keys: up, down, left, right, MENU, EXIT,
and ENTER.
7) Output operation keys (V1 OUTPUT ON/OFF, V2 OUTPUT ON/OFF)
They are the keys (V1 and V2) to switch output on and off. They switch on and off each time they
are pressed.
8) Output terminals (V1 OUTPUT, V2 OUTPUT)
There are two BNC receptacle connectors (V1 and V2) to output voltage.
9) Output status indicators (LED, V1 OUTPUT, V2 OUTPUT)
They are two orange LEDs indicating the output is on. There are two: V1 and V2.
10) Output coupled status indicator (LED, ON/OFF COUPLED)This is a green LED indicating that the output mode (Vout MODE) is "COUPLED".

3-3

LP6016-01P

3.2 Function of each part of the panels

3.2.2

Rear panel11) Enclosure terminal (CHASSIS)
This is connected to the enclosure (CHASSIS) and corresponds to the banana plug of ϕ 4 mm. Wireof ϕ 2.5 mm or less can also be connected.
12) Certification label
This is a label indicating the passing of inspection at NF Corporation.
13) Power supply voltage selector (VOLTAGE SELECTOR)
This is a rotary switch that switches the setting of the power supply voltage. Switch with thecoin-driver according to the power supply voltage. To prevent the power supply voltage selector
switch from being in a half-way position, set the switch to the position to where it clicks.
14) Fuse holder (FUSE)
This holder stores a fuse that protects this product.
When replacing fuses, follow the rating and do it in the proper manner. For details, see "2.3
Grounding and Power Connections".
15) Power switch (POWER)
This is a switch to switch power supply on and off.
16) Power inlet (~LINE)
This is an inlet for connecting the power supply. Supply the voltage set by the power supply
voltage selector. Furthermore, the center pole of the 3-pole plug is a protective ground terminal. Be
sure to ground it.
17) Identification label
This label shows the model and serial number of this product.
18) RS-232 connector (RS-232)
This is used for remote control.
Use a crossover cable to connect this product to the controller. For details, refer to "Connection" onpage 5-4.
19) USB connector (USB)This is a USB 2.0 Type B compliant connector used for remote control.
To connect this product to the controller, use the connection cable for the USB 2.0 Type B
connector. For details, refer to "Connection" on page 5-2.
20) LAN connector (LAN)This is a LAN connector used for remote control.
Use a CAT 5e or later compliant cable to connect this product to the controller. For details, refer to"Connection" on page 5-6.

3-4

LP6016-01P

Memo page

3-5

LP6016-01P

4. Operation procedure

4.1

Display and operation for powering up ..................................................................... 4-2

4.1.1

What to check before turning the power on .............................................................. 4-2

4.1.2

Turning power on and off ......................................................................................... 4-2

4.1.3

Setting at power on .................................................................................................. 4-2

4.1.4

Startup behavior and display .................................................................................... 4-2

4.1.5

Warm-up time .......................................................................................................... 4-2

4.2

The list of panel operations and functions ................................................................ 4-3

4.2.1

Basic panel operation and display examples ........................................................... 4-4

4.2.2

Setting the output voltage (VOLTAGE) ..................................................................... 4-7

4.2.3

Setting the limit voltage (LIMIT) ............................................................................... 4-8

4.2.4

Setting of the remote control (INTERFACE) ............................................................. 4-9

4.2.5

Others (UTILITY) ................................................................................................... 4-17

4.3

Operations no included in the menu tree ............................................................... 4-24

4.3.1

Switching the output on and off .............................................................................. 4-24

4.3.2

Switching from remote control state to local operation state .................................. 4-24

4.3.3

Initialization of the LCD setting .............................................................................. 4-24

4.4

Connection notes ................................................................................................... 4-25

4.4.1

Output connection .................................................................................................. 4-25

4.4.2

Current-monitor connection .................................................................................... 4-25

4-1

LP6016-01P

4.1 Display and operation for powering up

4.1

Display and operation for powering up

4.1.1

What to check before turning the power on

Before turning the power on, read "2.3 Grounding and Power Connections" and check thisproduct’s grounding and power supply voltage.
4.1.2

Turning power on and off

This product can be switched on and off by operating the power switch on the rear panel.
4.1.3

Setting at power on

The setting state when this product is started will be that when last powered off. However, only theoutputs state is set by "Power on setting (POW ON Vout)". For "Setting at power on (POW ON
Vout)", refer to "The output state at startup (POW ON Vout)" on page 4-19.
4.1.4

Startup behavior and display
The internal check at startup starts automatically, and during this check (about 3 seconds) a

message is displayed on the LCD, as shown in Figure 4-1.

Figure 4-1 Display example at startup
When the internal check is completed, a message is displayed on the LCD, as shown in Figure
4-2. Check that an error message, "OHP" or "OCP", is not displayed on the LCD.
If such an error message is displayed, refer to “6.1 Error messages” and take appropriate action.

Figure 4-2 Initial display of LCD example
4.1.5

Warm-up time
The warm-up time for this product is 60 minutes. To satisfy the specifications of "voltage setting

accuracy" and "current-monitor accuracy", always warm up.

4-2

LP6016-01P

4.2 The list of panel operations and functions

4.2

The list of panel operations and functions
This section explains the panel operations and functions of this product.
The panel operation menu tree is shown in Figure 4-3.

Initial display
Top menu

VOLTAGE

V1
V2

LIMIT

V1
V2

INTERFACEUSB

VENDOR ID
PRODUCT ID

RS-232BAUD RATEPARITYHANDSHAKETERMINATORLAN

MAC ADDRESSNETWORKIP ADDRESSSUBNET MASKDEFAULT GATEWAYPORT NUMBERUTILITY

Vout MODE
Vset MODEPOW ON VoutLCD LIGHTLCD CONTRAST
INITIALIZE
INFORMATIONFW VERSIONCAL DATE
Figure 4-3 Panel operation menu tree

4-3

LP6016-01P

4.2 The list of panel operations and functions

4.2.1

Basic panel operation and display examples

This section shows basic panel operation and display examples using menu operation keys.
There are seven menu operation keys (up, down, left, right, MENU, EXIT, ENTER) used when
making settings.
● Cursor and selection symbol• The " " symbol displayed when selecting a menu item has the role of a cursor. You can move itusing the up and down keys. In the example shown in Figure 4-4, it is displayed in front of "RS 232".
• The " " symbol displayed when selecting a menu item indicates the current setting state. In theexample shown in Figure 4-4, it is displayed in front of "USB".
• The "_" symbol (underscore) displayed when setting the value indicates the setting digit. In theexample shown in Figure 4-5, it is displayed under the first digit after the decimal place in thebottom row.

Figure 4-4 Cursor display example-1

Figure 4-5 Cursor display example-2● Initial display
This is displayed after starting up this product and internal check. Even when pressing the EXIT
key at the top menu or when setting initialization is executed, this initial screen is also displayed.
A display example is shown in Figure 4-6, and the voltage settings of the V1 and V2 outputs are
displayed.
The voltage cannot be set on this screen.

Figure 4-6 Initial display example

4-4

LP6016-01P

4.2 The list of panel operations and functions● MenuWhen pressing the MENU key, the top menu shown in Figure 4-7 is displayed.
The menu tree is shown in Figure 4-3. By pressing the ENTER key, transitions to the right or lower
section of the tree. By pressing the EXIT key, transitions to the left or upper section of the tree.
For example, press the ENTER key in the state shown in Figure 4-7, the menu shifts to the output
voltage setting menu shown in Figure 4-8.
Also, press the EXIT key in the state shown in Figure 4-8, which will shift to the top menu shownin Figure 4-7.

Figure 4-7 Top menu display example

Figure 4-8 Display example of output voltage setting menu

4-5

LP6016-01P

4.2 The list of panel operations and functions● Value setting operation
Values, such as voltage, are set using the up, down, left, and right keys.
Press the left and right keys to select the digit to be modified, then press the up and down keys tochange the number of the digit.
You can also continuously change the value or digit to be set by pressing and holding any of the 4keys.
By operating the up and down keys, the value changing carries-up and down.
Ex: When setting the V2 limit voltage
Figure 4-9 shows an example display when setting the V2 limit voltage. From this state, Figure
4-10 to Figure 4-13 show the shift when pressing the up, down, left, and right keys, respectively.

Figure 4-9 Display example when setting the V2 limit voltage

Figure 4-10 Display example when setting the V2 limit voltage (when press up key)

Figure 4-11 Display example when setting the V2 limit voltage (when press down key)

Figure 4-12 Display example when setting the V2 limit voltage (when press left key)

Figure 4-13 Display example when setting the V2 limit voltage (when press right key)

4-6

LP6016-01P

4.2 The list of panel operations and functions

4.2.2

Setting the output voltage (VOLTAGE)

This is a function to set the output voltage. There are two output voltages: V1 and V2.
The V1 and V2 output voltages can be set independently or symmetrically.
￫Refer to "Voltage setting mode (Vset MODE)" on page 4-18.
A display example at this function is shown in Figure 4-14.
The setting range is 0.0000 to +16.1000 V, and the setting resolution is 0.0005 V.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "VOLTAGE" and press the ENTER key.
3) Use the up key to move the cursor to "V1" or “V2” and press the ENTER key.
4) Use the up, down, left, and right keys to set the output voltage.
* The setting voltage change is immediately reflected to the output voltage.
* The output voltage cannot be set to a value exceeding the limit voltage.
Ex: If the V1 limit voltage is set to “+10.0000 V”, the V1 output voltage cannot be set to“+10.0100 V”.
* When press the EXIT key, the output voltage resets to the previous value before the change.
5) Press the ENTER key to finish the output voltage setting.

Figure 4-14 Display example when setting the V1 output voltage

4-7

LP6016-01P

4.2 The list of panel operations and functions

4.2.3

Setting the limit voltage (LIMIT)This is a function to set the limit voltage. There are two voltages: V1 and V2.
By setting the limit voltage, it becomes impossible to set the output voltage to exceed it.
This is also a function to limit the setting so that overvoltage is not applied to the load due tooperation mistakes.
A display example of this function is shown in Figure 4-15.
The setting range is +0.0005 to +16.1000 V, and the setting resolution is 0.0005 V.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "LIMIT" and press the ENTER key.
3) Use the up key to move the cursor to "V1" or “V2” and press the ENTER key.
4) Use the up, down, left, and right keys to set the limit voltage and press the ENTER key.
* When press the EXIT key, the limit voltage resets to the previous value.
* You cannot enter the "LIMIT" menu while either output is on. Turn off both outputs before
setting the limit voltage.
* The limit voltage cannot be set to a value less than the output voltage.
Ex: If the V1 output voltage is set to “+12.3450 V”, the V1 limit voltage cannot be set to“+12.0000 V”.

Figure 4-15 Display example when setting the limit voltage

4-8

LP6016-01P

4.2 The list of panel operations and functions

4.2.4

Setting of the remote control (INTERFACE)

This is a function to set the interface and parameters to operate with remote control. A display
example is shown in Figure 4-16.
USB, RS-232, or LAN can be selected as the interface.

Figure 4-16 Display example of setting the remote control● Select USB interface (USB)The remote control interface is set to USB. A display example is shown in Figure 4-17.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "USB" and press the ENTER key.

Figure 4-17 Display example after selecting USB◆ Indicate vendor ID (VENDOR ID)
This is a function to indicate the vendor ID for USB control. A display example is shown in Figure
4-18.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "USB" and press the ENTER key.
4) Use the up and down keys to move the cursor to "VENDOR ID" and press the ENTER key.

Figure 4-18 Example to indicate VENDOR ID

4-9

LP6016-01P

4.2 The list of panel operations and functions◆ Indicate product ID (PRODUCT ID)
This is a function to indicate the product ID for USB control. A display example is shown in Figure
4-19.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "USB" and press the ENTER key.
4) Use the up and down keys to move the cursor to "PRODUCT ID" and press the ENTER key.

Figure 4-19 Example to indicate PRODUCT ID

4-10

LP6016-01P

4.2 The list of panel operations and functions● Select RS-232 interface (RS-232)
The remote control interface is set to RS-232. A display example is shown in Figure 4-20.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "RS-232" and press the ENTER key.

Figure 4-20 Display example after selecting RS-232◆ Select baud rate (BAUD RATE)This is a function to select the baud rate for RS-232 control. A display example is shown in Figure
4-21.
Select the baud rate from 4 choices: 9600, 19200, 38400 , or 57600 bps.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "RS-232" and press the ENTER key.
4) Use the up and down keys to move the cursor to "BAUD RATE" and press the ENTER key.
5) Use the up and down keys to select the baud rate and press the ENTER key.
* When press the EXIT key or MENU key without pressing the ENTER key, the baud rate backs
to the previous selection.

Figure 4-21 Display example when setting the baud rate

4-11

LP6016-01P

4.2 The list of panel operations and functions◆ Select parity (PARITY)
This is a function to select the parity for RS-232 control. A display example is shown in Figure
4-22.
Select the parity from 3 choices: NONE, ODD, or EVEN.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "RS-232" and press the ENTER key.
4) Use the up and down keys to move the cursor to "PARITY" and press the ENTER key.
5) Use the up and down keys to select the parity and press the ENTER key.
* When press the EXIT key or MENU key without pressing the ENTER key, the parity backs tothe previous selection.

Figure 4-22 Display example when setting the parity◆ Select handshake (HANDSHAKE)
This is a function to select the handshake for RS-232 control. A display example is shown in Figure
4-23.
Select the handshake from 3 choices: NONE, SOFTWARE, or HARDWARE.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "RS-232" and press the ENTER key.
4) Use the up and down keys to move the cursor to "HANDSHAKE" and press the ENTER key.
5) Use the up and down keys to select the handshake and press the ENTER key.
* When press the EXIT key or MENU key without pressing the ENTER key, the handshakebacks to the previous selection.

Figure 4-23 Display example when setting the handshake

4-12

LP6016-01P

4.2 The list of panel operations and functions◆ Select terminator (TERMINATOR)
This is a function to select the terminator for RS-232 control. A display example is shown in Figure
4-24.
Select the terminator from 3 choices: CR, LF, or CR LF.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "RS-232" and press the ENTER key.
4) Use the up and down keys to move the cursor to "TERMINATOR" and press the ENTER key.
5) Use the up and down keys to select the terminator and press the ENTER key.
* When press the EXIT key or MENU key without pressing the ENTER key, the terminatorbacks to the previous selection.

Figure 4-24 Display example when setting the terminator

4-13

LP6016-01P

4.2 The list of panel operations and functions● Select LAN interface (LAN)The remote control interface is set to LAN. A display example is shown in Figure 4-25.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "LAN" and press the ENTER key.
* After selecting the LAN interface, this product does not accept any operations for about 10
seconds to update settings. At this time, the LCD shows the message in Figure 4-26.

Figure 4-25 Display example after selecting LAN

Figure 4-26 Display example when updating settings◆ Indicate MAC address (MAC ADDRESS)This is a function to indicate the MAC address for LAN control. A display example is shown in
Figure 4-27.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "LAN" and press the ENTER key.
4) Use the up and down keys to move the cursor to "MAC ADDRESS" and press the ENTER key.

Figure 4-27 Example to indicate the MAC address

4-14

LP6016-01P

4.2 The list of panel operations and functions◆ Setting the network parameters (NW SET)This is a function to set three types of network parameters: IP address, subnet mask, and default
gateway for LAN control. Display examples are shown in Figure 4-28 to Figure 4-30.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "LAN" and press the ENTER key.
4) Use the up and down keys to move the cursor to "NW SET" and press the ENTER key. It thenchanges to the “IP ADDRESS” menu.
5) Use the up, down, left, and right keys to set "IP ADDRESS" and press the ENTER key. It thenchanges to the “SUBNET MASK” menu.
6) Use the up, down, left, and right keys to set "SUBNET MASK” and press the ENTER key. Itthen changes to the “DEF GATEWAY” menu.
7) Use the up, down, left, and right keys to set "DEF GATEWAY” and press the ENTER key. The
three setting are then confirmed.
* After setting “NW SET”, this product does not accept any operations for about 10 seconds to
update settings. At this time, the LCD shows the message in Figure 4-31.

Figure 4-28 Display example when setting the IP address

Figure 4-29 Display example when setting subnet mask

Figure 4-30 Display example when setting default gateway

Figure 4-31 Display example when updating settings

4-15

LP6016-01P

4.2 The list of panel operations and functions◆ Indicate port number (PORT NUMBER)
This is a function to indicate the port number for LAN control. A display example is shown in
Figure 4-32.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "INTERFACE" and press the ENTER key.
3) Use the up and down keys to move the cursor to "LAN" and press the ENTER key.
4) Use the up and down keys to move the cursor to "PORT NUMBER" and press the ENTER key.

Figure 4-32 Example to indicate the port number

4-16

LP6016-01P

4.2 The list of panel operations and functions

4.2.5

Others (UTILITY)This includes menu items not included in the above menus. Display examples are shown in Figure
4-33 and Figure 4-34.
There are 9 items: Vout MODE, Vset Mode, POW ON Vout, LCD LIGHT, LCD CONTRAST,INITIALIZE, INFORMATION, FW VERSION, and CAL DATE.

Figure 4-33 Display example of UTILITY menu-1

Figure 4-34 Display example of UTILITY menu-2● Output mode (Vout MODE)
The states of the V1 and V2 outputs can be switched independently or coupled. They can be set inthe "Vout MODE" menu. A display example is shown in Figure 4-35.
• INDEP：

Independent control. Pressing the "V1 OUTPUT ON/OFF" key turns on and off
the V1 voltage output, and pressing the "V2 OUTPUT ON/OFF" key turns on andoff the V2 voltage output.

• COUPLED：

Coupled control. By pressing the V1 OUTPUT ON/OFF key or V2 OUTPUT
ON/OFF key, both the V1 and V2 outputs turn on and off.

[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "Vout MODE" and press the ENTER key.
4) Use the up and down keys to move the cursor to select and press the ENTER key.
* You cannot enter the "Vout MODE" menu while either output is on. Turn off both outputs
before setting “Vout MODE”.

Figure 4-35 Display example when setting “Vout MODE”

4-17

LP6016-01P

4.2 The list of panel operations and functions● Voltage setting mode (Vset MODE)
The V1 and V2 output voltages can be set independently or symmetrically. They can be set in the"Vset MODE" menu. A display example is shown in Figure 4-36.
• INDEP:

Independent control. The V1 and V2 output voltages can be set independently.

• TRACKING:

Tracking control. The V1 and V2 output voltages can be set symmetrically so thatthe absolute values of them match.

[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "Vset MODE" and press the ENTER key.
4) Use the up and down keys to move the cursor to select and press the ENTER key.
* You cannot enter the "Vset MODE" menu while either output is on. Turn off both outputs
before setting “Vset MODE”.
* When the value of the V1 and V2 output voltages do not match, changing the voltage setting
mode from independent to tracking sets the output voltage to match the lower one.
Ex: When the V1 output voltage is +10.0000 V and the V2 one is +12.0000 V, changing thevoltage setting mode from independent to tracking sets the V2 output voltage to +10.0000 V.

Figure 4-36 Display example when setting “Vset MODE”

4-18

LP6016-01P

4.2 The list of panel operations and functions● The output state at startup (POW ON Vout)
The state of outputs, on or off at startup, is selectable. It can be set in the "POW ON Vout" menu. A
display example is shown in Figure 4-37.
• ON:

Both V1 and V2 outputs are on at startup.

• OFF:

Both V1 and V2 outputs are off at startup.

• LAST STATE:At startup, both V1 and V2 outputs are the same as the last operation state.

[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "POW ON Vout" and press the ENTER key.
4) Use the up and down keys to move the cursor to select and press the ENTER key.

Figure 4-37 Display example when setting “POW ON Vout”● Brightness of the LCD (LCD LIGHT)
The brightness of the LCD is adjustable in 4 levels. This can be set in the "LCD LIGHT" menu. A
display example is shown in Figure 4-38.
When set to LEVEL 0, the backlight is turned off. The brightness increases as the level number
increases, and the maximum brightness is LEVEL 3.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "LCD LIGHT" and press the ENTER key.
4) Use the up and down keys to select the level number and press the ENTER key.

Figure 4-38 Display example when setting “LCD LIGHT”

4-19

LP6016-01P

4.2 The list of panel operations and functions● Contrast of the LCD (LCD CONTRAST)
The contrast of the LCD is adjustable in 8 levels. This can be set in the "LCD CONTRAST" menu.
A display example is shown in Figure 4-39.
LEVEL 0 is the lowest contrast. The contrast increases as the level number increases, and thehighest contrast is LEVEL 7.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "LCD CONTRAST" and press the ENTER
key.
4) Use the up and down keys to select the level number and press the ENTER key.

Figure 4-39 Display example when setting “LCD CONTRAST”

4-20

LP6016-01P

4.2 The list of panel operations and functions● Setting initialization (INITIALIZE)This is a function to initialize the settings. However, the settings of remote control and LCD are notinitialized. A display example is shown in Figure 4-40.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "INITIALIZE" and press the ENTER key.
4) Use the up and down keys to move the cursor to "EXECUTE" and press the ENTER key.
After setting initialization is complete, the LCD returns to the initial display.
* When press the ENTER key with the cursor on "CANCEL", initialization does not execute.
* When press the EXIT key, initialization does not execute.
* You cannot enter the "INTIALIZE" menu while either output is on. Turn off both outputs before
initialization.
* The settings after initialization are as listed in Table 4-1.
Table 4-1 Settings after initialization
The state of the V1 voltage output
The state of the V2 voltage output
V1 output voltage
V2 output voltage
V1 limit voltage
V2 limit voltage
Interface
Baud rate
ParityHandshake
Setting of
remote control
Terminator
IP address
Subnet mask
Default gateway
Output mode (VoutMODE)
Voltage setting mode (Vset mode)
The output state at startup (POW ON Vout)
Brightness of LCD (LCD LIGHT)
Contrast of LCD (LCD CONTRAST)

OFF
OFF+00.0000 V+00.0000 V+16.1000 V+16.1000 V
Not initialized
Not initialized
Not initialized
Not initialized
Not initialized
Not initialized
Not initialized
Not initialized
INDEP (Independent control)
INDEP (Independent control)
OFF (Always off at startup)
Not initialized
Not initialized

Figure 4-40 Display example of “INITIALIZE” menu

4-21

LP6016-01P

4.2 The list of panel operations and functions● Indicate the product information (INFORMATION)
This is a function to indicate the model name of this product and serial number. Display examples
are shown in Figure 4-41 toFigure 4-42.
Use the up and down keys to change the display to model or serial number.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "INFORMATION" and press the ENTER key.
4) Use the up and down keys to change the display to model or serial number.

Figure 4-41 Example to indicate the product information (model)

Figure 4-42 Example to indicate the product information (serial number)● Indicate the firmware version (FW VERSION)
This is a function to indicate the firmware version. A display example is shown in Figure 4-43.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "FW VERSION" and press the ENTER key.

Figure 4-43 Example to indicate the firmware version

4-22

LP6016-01P

4.2 The list of panel operations and functions● Indicate the last calibration date (CAL DATE)This is a function to indicate the last date that this product was calibrated by NF Corporation or ourservice engineers. A display example is shown in Figure 4-44.
[Panel operation procedure]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "CAL DATE" and press the ENTER key.

Figure 4-44 Example to indicate the last calibration date

4-23

LP6016-01P

4.3 Operations no included in the menu tree

4.3

Operations no included in the menu tree

4.3.1

Switching the output on and off

The V1 and V2 outputs can be switched independently or coupled.
￫Refer to "Output mode (Vout MODE)" on page 4-17.
● Switching the V1 output on and off
Pressing the V1 OUTPUT ON/OFF key switches the V1 output on and off.
● Switching the V2 output on and off
Pressing the V2 OUTPUT ON/OFF key switches the V2 output on and off.
[Precautions in use]
The relays switching the outputs on and off are the life span parts. Again and again
switching the outputs on and off may damage the relays. In particular, under conditionsof use that switching the outputs on and off frequently, failure may occur even within
the warranty period of this product. So, please avoid such usage.
4.3.2

Switching from remote control state to local operation state

When operating with remote control, this product enters the state in which local operation (panel
operation) is not accepted, and "REMOTE" is displayed on the LCD.
When press the LOCAL key, "REMOTE" on the LCD disappears and this product enters the statein which local operation (panel operation) can be accepted.
4.3.3

Initialization of the LCD settingThis is the operation to initialize the brightness and contrast settings (LCD LIGHT, LCD
CONTRAST) of the LCD. Keep pressing the MENU key for more than 3 seconds to execute. Table
4-2 lists the settings after initialization.
Table 4-2 LCD settings after initialization
LCD LIGHT
LEVEL 3 (brightest)(LCD brightness)
LCD CONTRASTLEVEL 7 (highest)

4-24

LP6016-01P

4.4 Connection notes

4.4

Connection notes

4.4.1

Output connection

Although this product can supply low noise DC voltage, its performance may not be optimal
depending on the connection method. Follow the precautions below and make the appropriate
connections.
1) Connect using a coaxial cable.
When connecting with a non-shielded cable, external noise may affect this product.
2) Connect using a cable of about 2 m or less in length.
When using an unnecessarily long cable, even the coaxial cable may be affected by external
noise. Load regulation may deteriorate depending on the wiring resistance of the cable. Connect
using an appropriate length.
3) The contact shape and dimensions of the BNC connector are regulated by IEC or JIS standards.
Use connectors conforming to these standards. If using connectors that are non-compliant, theoutput terminal will become damaged, deteriorating performance.
4.4.2

Current-monitor connection

The current-monitor terminal of this product should be connected to a high input impedance circuit
such as DC voltage measurement input of a digital multimeter. Since the output impedance of thecurrent-monitor terminal is 1 kΩ, the error increases when connected to a circuit with low input
impedance.
Check the input impedance of the circuit to connect before connecting.
Also, the output common and current-monitor common are connected. When the current-monitor
terminal is connected to a grounded terminal such as an oscilloscope, its common will also begrounded.

4-25

LP6016-01P

5. Remote control

5.1

Preparations before remote control .......................................................................... 5-2

5.1.1

Select the remote control interface .......................................................................... 5-2

5.1.2

USB interface ........................................................................................................... 5-2

5.1.3

RS-232 interface ...................................................................................................... 5-4

5.1.4

LAN interface ........................................................................................................... 5-6

5.1.5

Precautions for remote control ................................................................................. 5-8

5.2

Changing of remote control and local operation states ............................................ 5-8

5.3

Commands .............................................................................................................. 5-9

5.3.1

Parameter Formats .................................................................................................. 5-9

5.3.2

Symbols ................................................................................................................... 5-9

5.3.3

Input format.............................................................................................................. 5-9

5.4

Command explanations ......................................................................................... 5-10

5.4.1

Switch output on/off ............................................................................................... 5-10

5.4.2

Output voltage (Voltage) ........................................................................................ 5-11

5.4.3

Limit voltage (LIMIT) .............................................................................................. 5-11

5.4.4

Output mode (Vout MODE) .................................................................................... 5-12

5.4.5

Voltage setting mode (Vset MODE) ....................................................................... 5-12

5.4.6

The output state at startup (POW ON Vout) ........................................................... 5-13

5.4.7

Brightness of the LCD (LCD LIGHT) ...................................................................... 5-14

5.4.8

Contrast of the LCD (LCD CONTRAST)................................................................. 5-14

5.4.9

Query the abnormal state....................................................................................... 5-15

5.4.10

Query the error queue ............................................................................................ 5-15

5.4.11

Clear the error queue ............................................................................................. 5-15

5.4.12

Query the product information ................................................................................ 5-16

5.4.13

Reset (Initialize) ..................................................................................................... 5-16

5.4.14

Switching from remote control state to local operation state .................................. 5-16

5-1

LP6016-01P

5.1 Preparations before remote control

5.1

Preparations before remote control
This product can be remotely controlled via the USB, RS-232, and LAN interfaces.
With remote control, you can control this product and monitor the protection status the same aswith panel operation.
The connectors of each interface are on the rear panel.
5.1.1

Select the remote control interface

Select USB, RS-232, or LAN as the remote control interface. The interfaces cannot be used at thesame time.
5.1.2

USB interface● Controller
When using the USB interface, use a controller (e.g., PC) equipped with a USB port.
Install the USB CDC driver on the controller.
USB CDC: Universal Serial Bus Communication Device ClassThe USB CDC driver dedicated to this product can be downloaded from our website.
http://www.nfcorp.co.jp/english/index.html● Preparation of this productSelect "USB" at the interface setting of this product.
For the operation procedure, refer to "Select USB interface (USB)" on page 4-9.
● Connection
The USB interface connector of this product is USB 2.0 Type B. Use a cable that is suitable for theUSB 2.0 Type B connector to connect this product to the controller.
Also, connect using cables of the maximum length (5 m) or less specified in the standard.

5-2

LP6016-01P

5.1 Preparations before remote control● Parameters
Set so that the parameters match between this product and the controller. In case of mismatch,problems or errors may occur.
◆ Message terminator
Both program and response message terminators are "LF". This cannot be changed.
◆ Vendor ID
The vendor ID of this product is "0x0D4A". This can also be confirmed with the function
indicating vendor ID.
For the operation procedure, refer to "Indicate vendor ID (VENDOR ID)" on page 4-9.
◆ Product ID
The product ID of this product is "0x64". This can also be confirmed with the function indicatingproduct ID.
For the operation procedure, refer to "Indicate product ID (PRODUCT ID)" on page 4-10.
◆ Serial number
The serial number is unique to the product. This can be confirmed with the function indicatingproduct information or the identification label on the rear panel.
For the operation procedure, refer to "Indicate the product information (INFORMATION" on page
4-22.
● Identification of USB devices
Connect this product to the USB port of a PC using a USB cable.
When using a PC with a USB CDC driver installed, it is recognized automatically.
This product is identified by the vendor ID, product ID, and serial number. This information can be
confirmed from the procedure above.
Use this information when manually identifying this product, i.e., when this product can not berecognized automatically.
● Precautions• When connecting via a USB hub, this product may not operate properly.
• When connecting with a cable exceeding the maximum length (5 m) specified in the standard, thisproduct may not operate properly.
• To avoid malfunction caused by radiated electromagnetic field noise, be sure to use a shieldedcable.

5-3

LP6016-01P

5.1 Preparations before remote control

5.1.3

RS-232 interface● Controller
When using the RS-232 interface, use a controller (e.g., PC) equipped with an RS-232 port.
● Preparation of this productSelect "RS-232" at the interface setting of this product.
For the operation procedure, refer to "Select RS-232 interface (RS-232)" on page 4-11.
Also, set the following parameters.
• Baud rate: for this operation procedure, refer to “Select baud rate (BAUD RATE)” on page 4-11.
• Parity: for this operation procedure, refer to “Select parity (PARITY)” on page 4-12.
• Handshake: for this operation procedure, refer to “Select handshake (HANDSHAKE)” on page
4-12.
• Terminator: for this operation procedure, refer to “Select terminator (TERMINATOR)” on page
4-13.
● Connection
The RS-232 interface connector of this product is a male D-SUB connector (9 pins). The pin
assignment of the connector is shown in Figure 5-1, and the pin assignment is listed in Table 5-1.
Use a crossover cable to connect this product with the controller.
Also, connect using cables with the maximum length (15 m) or less specified in the standard.
Table 5-1 RS-232 pin assignmentPIN
FUNCTIONNUMBER
1
No Connection (Not used, open)
1 2 3 4 5
2
RxD
3
TxD
4
No Connection (Not used, open)
5
GND
6
No Connection (Not used, open)
7RTS
6 7 8 98CTS
9No Connection (Not used, open)
Figure 5-1 Pin assignment of RS-232 connector

5-4

LP6016-01P

5.1 Preparations before remote control● Parameters
Set so that the parameters match between this product and the controller. In case of mismatch,problems or errors may occur.
◆ Baud rate
Select from 4 types: 9600, 19200, 38400, or 57600 bps.
◆ Data length
Data length is 8 bits. This cannot be changed.
◆ Stop bit length
Both program and response stop bit lengths are 1 bit. This cannot be changed.
◆ Parity
Select from 3 types: NONE, ODD, or EVEN.
◆ Handshake
Select from 3 types: NONE, SOFTWARE, or HARDWARE.
◆ Message terminator
Select from 3 types: CR, LF, or CR LF.
● Precautions• Multiple devices cannot be connected simultaneously to one RS-232 port.
• When connecting with a cable exceeding the maximum length (15 m) specified in the standard,
this product may not operate properly.
• To avoid malfunction caused by radiated electromagnetic field noise, be sure to use a shieldedcable.
• With the handshake set to “NONE”, the communication may not be executed correctly. Use
handshake as much as possible.
• With the handshake set to “HARDWARE”, use the cable with the RTS and CTS signals linked.

5-5

LP6016-01P

5.1 Preparations before remote control

5.1.4

LAN interface

This interface only supports TCP/IP.
It does not correspond to the IP address automatically assigned by DHCP. When connecting to the
network, contact the administrator and set the IP address, subnet mask, and default gateway.
● Controller
When using the LAN interface, use a controller (e.g., PC) equipped with a LAN port.
● Preparation of this productSelect "LAN" at the interface setting of this product.
For the operation procedure, refer to "Select LAN interface (LAN)" on page 4-14.
Also, set the parameters listed below.
For this operation procedure, refer to "Setting the network parameters (NW SET)" on page 4-15.
• IP address• Subnet mask
• Default gateway● Connection
When connecting to the network, use a straight cable. When connecting to a PC directly, use acrossover cable.
However, when using a hub or connecting a PC that can automatically recognize straight andcrossover, you can use either.
Use cables compliant with CAT 5e or later. When using a cable of a previous standard,
communication speed may be slow or electromagnetic interference to peripheral devices may occur.
● Parameters
Set so that the parameters match between this product and the controller. In case of mismatch,problems or errors may occur.
◆ MAC address
The MAC address is unique to each product and cannot be changed. It can also be confirmed withthe function indicating the MAC address.
For the operation procedure, refer to “Indicate MAC address (MAC ADDRESS)” on page 4-14.

5-6

LP6016-01P

5.1 Preparations before remote control◆ IP address
An IP address is a numerical label assigned to each device connected to a computer network thatuses the Internet Protocol for communication. It can be set.
For the operation procedure, refer to “Setting the network parameters (NW SET)” on page 4-15.
◆ Subnet mask
Subnet mask separates the network address and host address of the IP address. It can be set.
For the operation procedure, refer to “Setting the network parameters (NW SET)” on page 4-15.
◆ Default gateway
Default gateway is the address of the gateway (router) used implicitly when accessing an external
network. It can be set.
For the operation procedure, refer to “Setting the network parameters (NW SET)” on page 4-15.
◆ Port number
The port number of this product is “10001” and cannot be changed. It can be confirmed with thefunction indicating port number.
For the operation procedure, refer to “Indicate port number (PORT NUMBER)” on page 4-16.
◆ Message terminator
Both program and response message terminators are "LF". This cannot be changed.
● Precautions• Use cables compliant with CAT 5e or later.
• To avoid malfunction caused by radiated electromagnetic field noise, be sure to use a shieldedcable.
• Avoid unnecessarily stretching the connecting cable. As the length becomes longer, it is easier toaccept external noise.
• This product does not correspond to the IP address automatically assigned by DHCP. Whenconnecting to the network, contact the administrator and set the IP address, subnet mask, anddefault gateway. Misconfiguration may interfere with communication on the connected network.

5-7

LP6016-01P

5.1 Preparations before remote control

5.1.5

Precautions for remote control● Input buffer• This product stores the received commands in the input buffer first then interprets and executes
them.
• The input buffer size is 512 bytes. Do not send program messages continuously as this size is
exceeded. Program messages exceeding the input buffer size are ignored.
• When receiving a command that is non-compliant with the specifications, an error occurs and anerror message is displayed. For error messages, refer to "6.1 Error messages".
• When sending program messages continuously, in order not to exceed the input buffer size, pleaseleave a transmission interval of the program messages that is longer than 50 msec.
● Output buffer
The output buffer size is 512 bytes.
● Message terminator
When sending a command from the controller, be sure to attach a message terminator to the end of
the message string. It dose not work properly without a message terminator.
● Error queue
Errors related to remote control are held in the error queue which can hold up to 20 errors. When it
exceeds 20, old errors are deleted in order.
For errors related to remote control, refer to Table 6-4 in Section 6.1.

5.2

Changing of remote control and local operation states
This product has two states: remote control (remote state) and local operation.
In the local operation state, all panel operations are possible.
In the remote control state, however, this product cannot accept any panel operations except the

LOCAL key. Also, as shown in Figure 5-2, "REMOTE" is displayed on the LCD.

Figure 5-2 Display example during remote control

5-8

LP6016-01P

5.3 Commands

5.3

Commands
The remote control command of this product consists of a header of 3 to 5 characters and 0 to 2

parameters. One space is necessary between a header and first parameter
5.3.1

Parameter Formats

Unless otherwise the parameter format is not defined on each section, integer format (NR1) can beused for setting selection, and integer format (NR1) and real number formats (NR2, NR3) can beused for numerical setting.
● NR1: Integer format• This is a format not including a decimal point and the position of the decimal point is interpreted
as the end of the last digit.
• "+" or "-" can be used (when positive, "+" can be omitted).
Ex: +1234, -98, 67● NR2: Real number format (fixed-point number format)• This is a format including a decimal point, and its decimal point position is indicated with "."(period).
• When the digit before the decimal point is omitted, the integer part is interpreted as "0" (zero).
• "+" or "-" can be used (when positive, "+" can be omitted).
Ex: +98.76, -12.0, 4.3● NR3: Real number format (Exponential format)• This consists of a mantissa with a decimal point and an exponent indicating 10n. The position of
the decimal point is "." (period), and the boundary between the mantissa and exponent isindicated by "E".
• When the digit before the decimal point is omitted, the integer part is interpreted as "0" (zero).
• "+" or "-" can be used (when positive, "+" can be omitted).
• A sign can be attached to each mantissa and exponent.
Ex: +0.123E4, -56.0E-7, 8.9E-1
5.3.2

Symbols• The vertical bar (|) means selecting one from several words.
• “xx”, “yy”, “zz”, and “aa” mean parameter 1, 2, 3 and 4 respectively.
5.3.3

Input format

Commands can be uppercase or lowercase. Also, uppercase and lowercase may be mixed. However,
half-width characters are only valid; double-byte characters cannot be used.

5-9

LP6016-01P

5.4 Command explanations

5.4

Command explanations
The header list of commands for this product is shown in Table 5-2.
Table 5-2 The header list of commands
Function
Switch output on/off
Output voltage (Voltage)
Limit voltage (LIMIT)
Output mode (Vout MODE)
Voltage setting mode (Vset MODE)
The output state at startup (POW ON Vout)
Brightness of the LCD (LCD LIGHT)
Contrast of the LCD (LCD CONTRAST)
Query the abnormal state
Query the error queue
Clear the error queue
Query the product information
Reset (Initialize)
Switching from remote control state to local
operation state

5.4.1

Set/Query
Both
Both
Both
Both
Both
Both
Both
Both
Query only
Query only
Set only
Query only
Set only

Header
OUT
VLT
LMV
OMD
VMD
POS
LBD
LCD
PST?
ERQ?
EQC
*IDN?
*RST

Page
5-10
5-11
5-11
5-12
5-12
5-13
5-14
5-14
5-15
5-15
5-15
5-16
5-16

Set only

GTL

5-16

Switch output on/off● Set
Command:

OUT xx,yy

Parameter 1:

1|2 (NR1)
1: V1 output, 2: V2 output

Parameter 2:

0|1 (NR1)
0: OFF, 1: ON

Command Ex:

OUT 2,1
Switch V2 output to on.

● Query
Command:

OUT? xxParameter 1:

1|2 (NR1)
1: V1 output, 2: V2 output

Return value:yy

Parameter 2:

0|1 (NR1)
0: OFF, 1: ON

Command Ex:

OUT? 1
Query whether V1 output is on or off.

Return value Ex:

1
The V1 output is on.

5-10

LP6016-01P

5.4 Command explanations

5.4.2

Output voltage (Voltage)● Set
Command:

VLT xx,yy

Parameter 1:

1|2 (NR1)
1: V1 output, 2: V2 output

Parameter 2:

Voltage (NR2, NR3)
Setting range: 0.0000 to +16.1000
Setting resolution: 0.0005

Command Ex:

VLT 1,+1.2345
Set the V1 output voltage to +1.2345 V.

Precaution:

It cannot be set to exceed the limit voltage.

● Query
Command:

VLT? xxParameter 1:

1|2 (NR1)
1: V1 output, 2: V2 output

Return value:yy

Parameter 2:

Voltage (NR2, NR3)

Command Ex:

VLT? 2
Query V2 output voltage.

Return value Ex:+9.8765
The V2 output voltage is +9.8765 V.

5.4.3

Limit voltage (LIMIT)● Set
Command:

LMV xx,yy

Parameter 1:

1|2 (NR1)
1: V1 output, 2: V2 output

Parameter 2:

Limit voltage (NR2, NR3)
Setting range: +0.0005 to +16.1000
Setting resolution: 0.0005

Command Ex:

LMV 1,+1.2345
Set the V1 limit voltage to +1.2345 V.

Precaution:

It cannot be set to be less than the output voltage.

5-11

LP6016-01P

5.4 Command explanations● Query
Command:

LMV? xxParameter 1:

1|2 (NR1)
1: V1 output, 2: V2 output

Return value:yy

Parameter 2:

Limit voltage (NR2, NR3)

Command Ex:

LMV? 2
Query V2 limit voltage.

Return value Ex:+9.8765
The V2 limit voltage is +9.8765 V.

5.4.4

Output mode (Vout MODE)● Set
Command:

OMD xxParameter 1:0|1 (NR1)
0: Independently control (INDEP), 1: Coupled control (COUPLED)

Command Ex:

OMD 1
Set the output mode to coupled control (COUPLED).

● Query
Command:OMD?

Parameter:

No needReturn value:xx

Parameter 1:0|1 (NR1)
0: Independently control (INDEP), 1: Coupled control (COUPLED)

Command Ex:

OMD?
Query output mode.

Return value Ex:0
Output mode is independently controlled (INDEP).

5.4.5

Voltage setting mode (Vset MODE)● Set
Command:

VMD xxParameter 1:0|1 (NR1)
0: Independently control (INDEP), 1: Tracking control (TRACKING)Command Ex:

VMD 1
Set the voltage setting mode to tracking control (TRACKING).

5-12

LP6016-01P

5.4 Command explanations● Query
Command:

VMD?

Parameter:

No needReturn value:xx

Parameter 1:0|1 (NR1)
0: Independently control (INDEP), 1: Tracking control (TRACKING)Command Ex:

VMD?
Query voltage setting mode.

Return value Ex:

0
Voltage setting mode is independently controlled (INDEP).

5.4.6

The output state at startup (POW ON Vout)● Set
Command:Parameter 1:

POS xx0|1|2 (NR1)
0: Both V1 and V2 outputs are off at startup (OFF).
1: Both V1 and V2 outputs are on at startup (ON).
2: At startup, both V1 and V2 outputs are the same as last operation (LAST
STATE).

Command Ex:

POS 1
Set the output state at startup to “Both V1 and V2 outputs are on at startup(ON).”.

● Query
Command:POS?

Parameter:

No needReturn value:xx

Parameter 1:

0|1|2 (NR1)
0: Both V1 and V2 outputs are off at startup (OFF).
1: Both V1 and V2 outputs are on at startup (ON).
2: At startup, both V1 and V2 outputs are the same as last operation (LAST
STATE).

Command Ex:

POS?
Query output state at startup.

Return value Ex:

0
The output state at startup is “Both V1 and V2 outputs are off at startup(OFF).”.

5-13

LP6016-01P

5.4 Command explanations

5.4.7

Brightness of the LCD (LCD LIGHT)● Set
Command:Parameter 1:

LBD xx0 to 3 (NR1)
0: The backlight of the LCD is off.
1 to 3: The brightness increases as the value increases.

Command Ex:

LBD 3
Set the brightness of the LCD to maximum.

● Query
Command:

LBD?

Parameter:

No needReturn value:xx

Parameter 1:

0 to 3 (NR1)
0: The backlight of the LCD is off.
1 to 3: The brightness increases as the value increases.

Command Ex:

LBD?
Query the brightness of the LCD.

Return value Ex:

0
The backlight of the LCD is off.

5.4.8

Contrast of the LCD (LCD CONTRAST)● Set
Command:Parameter 1:

LCD xx0 to 7 (NR1)
The contrast increases as the value increases.

Command Ex:

LCD 7
Set the contrast of the LCD to maximum.

● Query
Command:

LCD?

Parameter:

No needReturn value:xx

Parameter 1:

0 to 7 (NR1)
0: The backlight of the LCD is off.
The contrast increases as the value increases.

Command Ex:

LCD?
Query the contrast of the LCD.

Return value Ex:

0
The contrast of the LCD is minimum.

5-14

LP6016-01P

5.4 Command explanations

5.4.9

Query the abnormal state

Command:PST?

Parameter:

No needReturn value:xx

Parameter 1:

0 to 63 (NR1)Each state is weighted as follows. This value of parameter 1 is sum of them.
1: The V1 output current exceeds the rating and overcurrent protection is
working (E102)
2: The V2 output current exceeds the rating and overcurrent protection is
working (E103)
4: Overheat protection is working (E104)
8: Calibration data are broken (E303)
16: Setting data are broken (E304, E305)
32: Hardware error (E901, E902, E903)

Command Ex:

PST?
Query the abnormal condition.

Return value Ex:

3
Both V1 and V2 output currents exceed the rating and protection is working.

5.4.10 Query the error queue
Command:ERQ?

Parameter:

No needReturn value:xx,yy (String)Parameter 1:

Error number (Refer to “6.1 Error messages”)

Parameter 2:

Error message (“6.1 Error messages”)*When the error queue is empty, the return is the value shown in thefollowing "Return value Ex2".

Command Ex:

ERQ?
Reads the oldest error held in the error queue.
Refer to “Error queue” on page 5-8.

Return value Ex 1:

ERROR501,Command error

Return value Ex 2:

ERROR0,No error

5.4.11 Clear the error queue
Command:

EQC

Parameter:

No needReturn value:

Nothing

Explanation:

Clear entire error queue.

5-15

LP6016-01P

5.4 Command explanations

5.4.12 Query the product information
Command:*IDN?

Parameter:

No needReturn value:xx,yy,zz,aa (String)Parameter 1:

Vendor nameParameter 2:

Model nameParameter 3:

Serial number

Parameter 4:

Firmware version

Command Ex:*IDN?
Query the product information.

Return value Ex:

NF Corporation,LP6016-01P,1234567,1.00

5.4.13 Reset (Initialize)
Command:*RSTParameter:

No needReturn value:

Nothing

Explanation:

It is the same function as “INITIALIZE” of the panel operation.
For details, refer to “Setting initialization (INITIALIZE)” on page 4-21.

Precaution:

It cannot be executed while either output is on.

5.4.14 Switching from remote control state to local operation state
Command:GTLParameter:

No needReturn value:

Nothing

Explanation:

It is the same function as pressing the LOCAL key.
For details, refer to Sections 4.3.2 and 5.2.

5-16

LP6016-01P

Memo page

5-17

LP6016-01P

6. Troubleshooting

6.1

Error messages........................................................................................................ 6-2

6.2

Quick diagnosis ....................................................................................................... 6-6

6-1

LP6016-01P

6.1 Error messages

6.1

Error messages
This product displays error messages on the LCD when there are errors in the internal check at

startup, panel operation, or remote control operation.
A display example of an error message is shown in Figure 6-1.

Figure 6-1 Display example of error message
Error messages that are not listed in this instruction manual may be displayed due to firmware
update etc. If there are other manuals provided, refer to them as well.
Table 6-1 General error list
No.
E101
E102
E103

E104

E105

Message
OCP3(Displayed at lower left of
LCD)

OCP1
(Displayed at lower left of
LCD)

OCP2
(Displayed at lower left of
LCD)

OHP
(Displayed at lower left of
LCD)

AC line error
Can’t operate

Explanation
Indicates that both V1 and V2
output currents exceed therating.
Indicates that the V1 output
current exceeds the rating.
Indicates that the V2 output
current exceeds the rating.
Indicates that the internal
temperature exceeds a certain
value and overheat protection
is in operation.
When this error occurs, theoutputs are turned off andcannot be turned on until the
problem is solved.
Indicates that the power
supply voltage is lower.
When this error occurs, thisproduct does not work
properly.

6-2

Solution
Check and reduce the loads
that connected to both V1 andV2 outputs.
Check and reduce the loadthat connected to the V1
output.
Check and reduce the loadthat connected to the V2
output.
It is highly probable that theambient temperature or
output current rating has been
exceeded.
Check and improve theconditions of use; otherwise,
carry out forced coolingusing, e.g., fans.
Make the settings of thepower supply voltage selector
on the rear panel and thepower supply voltage match.
Then reboot the product.

LP6016-01P

6.1 Error messages
Table 6-2 Error list of panel operation
No.

Message

E201

Setting error
V1 over LIMIT

E202

Setting error
V2 over LIMIT

E203

Setting error
LIMIT under V1

E204

Setting error
LIMIT under V2

E205

Invalid input
Turn off output

E206

Invalid input
Turn off output

E207

Invalid input
Turn off output

E208

Invalid input
Turn off output

E209

Invalid input
Exit this menu

E210

Invalid input
Clear error

E211

Setting error
Out of Range

Explanation
This error occurs when trying
to set the V1 output voltage
to exceed its limit voltage.
This error occurs when trying
to set the V2 output voltage
to exceed its limit voltage.
This error occurs when trying
to set the limit voltage to lessthan the voltage setting of theV1 output.
This error occurs when trying
to set the limit voltage to lessthan the voltage setting of theV2 output.
This error occurs when trying
to set "Vout MODE" while
output is on.
This error occurs when trying
to set "Vset MODE" while
output is on.
This error occurs when trying
to set the limit voltage while
output is on.
This error occurs when trying
to initialize while output ison.
This error occurs when trying
to turn the output on in "Vout
MODE" or "Vset MODE" orsetting the limit voltage.
This error occurs when trying
to turn on output while E104,
E105, or E303 is present.
This error occurs when trying
to set the output voltage orlimit voltage outside therange.

6-3

Solution
Check the limit voltage of theV1 output.
Check the limit voltage of theV2 output.
Check the V1 output voltage.

Check the V2 output voltage.

Turn off both V1 and V2
outputs before setting it.
Turn off both V1 and V2
outputs before setting it.
Turn off both V1 and V2
outputs before setting it.
Turn off both V1 and V2
outputs before setting it.
Operate after leaving thesemenus.
Address each error and reboot
this product.
Check the setting ranges
referred to in Sections 8.2 and
8.3.

LP6016-01P

6.1 Error messages
Table 6-3 Error list of internal memory
No.

Message

E303

Memory error
Can’t operate

E304

Memory error
Initialized

E305

Memory error
Initialized

Explanation
This error occurs whenimportant internal data arebroken.
This error occurs when thesetting data related to theremote control are broken.
When this error occurs,settings related to the remotecontrol are initialized.
This error occurs whensetting data, except for the
remote control, are broken.
When this error occurs,settings, except to the remotecontrol, are initialized.

6-4

Solution
The product is out of order.
Contact NF Corporation or an
authorized agent.
The product can be usednormally after resetting.

The product can be usednormally after resetting.

LP6016-01P

6.1 Error messages
Table 6-4 Error list of remote control
No.

Message

E501

Command error

E502

E503

Syntax error

Parameter error

Explanation
This error occurs when
receiving an undefinedcommand.
This error occurs in thefollowing cases such as when"?" is attached to the set only
command, when "?" is not
attached to the query only
command, and when there isan excess or lack of "space".
This error occurs when theparameters of the command
are out of range or theparameters include incorrectcharacters.

Solution
Check whether the commandis correct.
Check whether the commandis correct.

Check whether the parameters
are correct.

*Refer to "5.3 Commands" for the commands and parameters.
Table 6-5 Serious error list
No.

Message

E901

Unknown error
Can’t operate

E902

Internal error
Can’t operate

E903

Internal error
Can’t operate

E904

Software error
Can’t operate

Explanation
This error occurs when an
unexpected problem with the
hardware occurred.
This error occurs when a fatal
problem with the V1 output
occurred.
This error occurs when a fatal
problem with the V2 output
occurred.
This error occurs when a fatal
problem with the software
occurred.

6-5

Solution
The product is out of order.
Contact NF Corporation or an
authorized agent.
The product is out of order.
Contact NF Corporation or an
authorized agent.
The product is out of order.
Contact NF Corporation or an
authorized agent.
The product is out of order.
Contact NF Corporation or an
authorized agent.

LP6016-01P

6.2 Quick diagnosis

6.2

Quick diagnosis
When operation is believed to be abnormal, check Table 6-6 first. If there is no related description

or the problem cannot be solved by executing a "Solution", contact NF Corporation or an authorized
agent.
Table 6-6 Troubleshooting
ProblemCannot power on

Possible cause
The power cord is not correctly
inserted.
The settings of the power supply
voltage selector and power supply
voltage do not match.
Fuse is expired.

The output voltage Overloaded
is abnormal(“OCP” is indicated on the LCD)
Current-monitor terminal is
The output of theconnected to the small impedances.
current monitor
is abnormal
Cannot operatewith the panel

Cannot operatewith the remotecontrolThis product is set to the remotecontrol state (remote mode).
Remote control setting and selectedinterface do not match controller.
The connection cable is not inserted
correctly.
The connection cable isnon-compliant with the standards.
Ex: The cable is too longThis product is connected to thecontroller via a hub, repeater, or etc.
The output is connected to the load
by using an unshielded cable.

The output noiseis large

The connection cable is too long.
(more than 2 m)
When this product is exposed to
disturbance such as a strong
electromagnetic radiation.

6-6

Solution
Insert the power cord securely.
Make the setting of the voltage
selector on the rear panel and thepower supply voltage match.
Replace the fuse.
(Refer to "2.3 Grounding and Power
Connections”.)
Maximum output current is 100 mA.
Check the output load.
Check the impedance connected tothis product.
When this is small, the output
voltage is divided and it looks
small.
Press the "LOCAL" key on the front
panel to switch to the panel
operation state (local mode).
Check the setting related to theremote control.
Connect the cable securely.
Use a cable that is compliant withthe standard.
(Refer to "5.1 Preparations before
remote control”.)
Connect this product and controller
one on one.
Unshielded cables are easily
affected by external noise.
Use a shielded cable such as a
coaxial cable.
Even shielded cables, such as
coaxial ones, are affected byexternal noise when too long.
Use cables that are short as possible.
Remove the disturbance.

LP6016-01P

Memo page

6-7

LP6016-01P

7. Maintenance

7.1

Introduction .............................................................................................................. 7-2

7.2

Daily maintenance ................................................................................................... 7-2

7.3

Storage, repacking, and transportation .................................................................... 7-2

7.4

Check the firmware version number ......................................................................... 7-3

7.5

Performance testing ................................................................................................. 7-4

7.5.1

Introduction .............................................................................................................. 7-4

7.5.2

Testing output voltage setting accuracy ................................................................... 7-5

7.5.3

Testing line regulation .............................................................................................. 7-6

7.5.4

Testing load regulation ............................................................................................. 7-7

7.5.5

Testing current-monitor accuracy ............................................................................. 7-8

7.6

Calibration ............................................................................................................... 7-9

7-1

LP6016-01P

7.1 Introduction

7.1

Introduction
The following maintenance items are essential for using this product under the best conditions.
• Quick operation check:

Check if this product operates properly.

• Performance testing:

Check if the specifications are satisfied.

• Calibration, adjustment:

If this product is not in compliance with the specifications, NF
Corporation will make the necessary adjustment or calibration to
restore performance.

• Malfunction, repairs:

When performance cannot be restored by calibration or adjustment,
NF Corporation will identify the cause and location of the damageand execute repairs.

This instruction manual describes the procedures of quick operation check and performance
testing.
For calibration, adjustment, or repair, contact NF Corporation or an authorized agent.

WARNINGTo prevent exposure to high voltages, never open the case of this product.
Even when inspection inside this product is needed, only service engineers certified by NF
Corporation should touch the inside.

7.2

Daily maintenanceIf the surface of the panel or other parts becomes dirty, wipe it with a soft cloth. To remove

persistent contamination, wipe with a soft cloth soaked with neutral detergent and wrung out. Do not
use any organic solvents such as thinners or benzene, or any chemical cleaning cloth, as they may
cause the surface finish to deteriorate, tarnish, or come off.

7.3

Storage, repacking, and transportation
This product should be stored in a location that satisfies the storage conditions (refer to “2.2.2

Installation environment”).
When repacking this product for transportation, use a box that is sufficiently strong and large
enough to provide a surplus of space. To fully protect this product, fill the box with packing material
that can withstand its weight.
Make sure that the package is handled with care to avoid strong shocks during transport.

7-2

LP6016-01P

7.4 Check the firmware version

7.4

Check the firmware version number
Due to product upgrades, the firmware version of each product may differ even if they are of thesame model. Operation of the product may differ due to difference in versions. If any anomaly isfound, inform NF Corporation of the problem along with the version number.
The latest firmware information is published on our website.
You can check the firmware version number using the startup display (Figure 7-1) or the following
procedure.
[Procedure checking firmware version number]
1) Press the MENU key to enter the top menu.
2) Use the up and down keys to move the cursor to "UTILITY" and press the ENTER key.
3) Use the up and down keys to move the cursor to "FW VERSION" and press the ENTER key.
4) Then the LCD displays the message shown in Figure 7-2. The firmware version number isdisplayed in the bottom row.

Figure 7-1 Display example at startup

Figure 7-2 Display example of firmware version

7-3

LP6016-01P

7.5 Performance testing

7.5

Performance testing

7.5.1

Introduction

Performance tests are conducted to check that there is no abnormality of this product.
Testing is done for acceptance inspection, periodic inspections, and whenever it is necessary tocheck performance, such as after repair.
This section describes a test that can be conducted with general measurement instruments.
Calibration is available at charge and can be requested from NF Corporation or an authorized
agent.
If the performance test indicates that this product does not comply with the specifications,re-adjustment or repair is required. In such a case, contact NF Corporation or an authorized agent.
● Test conditions
This product should be tested under the following conditions.
・ Temperature

23 C ± 5 C・ Humidity

20 to 70 %RH, no condensation

・ Warm-up

60 minutes or more・ Other

Before the test, initialize the settings.
Setting Initialization is to execute "INITIALIZE" for panel operation or"*RST" for remote control operation.

● Measurement instruments
The required measurement instruments are listed in Table 7-1.
Table 7-1 Measurement instrument list
Name
Digital multimeter-1
Digital multimeter-2
AC power supply
DC electronic load
or load resistor

Required specifications
Input impedance: 1 MΩ or more.
DC voltage measurement accuracy:± 0.005 % or better for 0 to 10 V
DC current measurement accuracy:± 0.1 % or better for 0 to 100 mA
28-VA output possible with AC 90 to
110 V, 50 or 60 Hz.
100-mA output possible with 10 V.
100 Ω, 3 W or more
(The lower the temperature coefficient,
the better)

7-4

Ex:
Keithley 2000
NF DM2561A
Keithley 2000
NF DM2561A
NF EC750SA
NF EC1000SANF DL3000 series-

LP6016-01P

7.5 Performance testing

7.5.2

Testing output voltage setting accuracy

The following is how to test for V1 output voltage as well as V2 output voltage.
• Connect the two devices as shown in Figure 7-3.
• Set the V1 output voltage to + 10.0000 V and turn on the output.
• Measure the DC voltage with the digital multimeter-1.
• Refer to Table 7-2 and check that specification "± ( 0.03 % of setting + 250 μV)" is satisfied.
• Also test by setting the output voltage to 0.0000 V.

Figure 7-3 Diagram of connection when testing voltage setting accuracy(For measurement on the V2 side, make the connection shown with the broken line.)
Table 7-2 Judgement for voltage setting accuracy
Outputpolarity
V1
V2

Setting voltage

Passing range

Measured voltage

0.0000 V+ 10.0000 V
0.0000 V+ 10.0000 V- 0.25 to + 0.25 mV+ 9.99675 to + 10.00325 V- 0.25 to + 0.25 mV+ 9.99675 to + 10.00325 V__ __. __ __ __ mV__ __ __. __ __ __ __ __V__ __. __ __ __ mV__ __ __. __ __ __ __ __V

7-5

LP6016-01P

7.5 Performance testing

7.5.3

Testing line regulation

The following is how to test for V1 output voltage as well as V2 output voltage.
• Connect the devices as shown in Figure 7-4.
• Set the voltage of the AC power supply to AC 100 V.
* The frequency may be either 50 or 60 Hz.
• Set the V1 output voltage of LP6016-01P to + 10.0000 V and turn on the output.
• Measure the DC voltage with the digital multimeter-1, which is defined as “V100[V]”.
• Measure the DC voltage also with AC 90 and 110 V, which is defined as “V90[V]” and “V110[V]”,respectively.
• Line regulation is calculated by “V90 - V100” or “V110 - V100”.
• Refer to Table 7-3 and check that specification "± 0.1 mV" is satisfied.

Figure 7-4 Diagram of connection when testing line regulation(For measurement on the V2 side, make the connection shown with the broken line.)
Table 7-3 Judgement for line regulation
Output polarity

V1

V2

Item
V90
V100
V110
V90 - V100
V110 - V100
V90
V100
V110
V90 - V100
V110 - V100

Passing range- 0.1 to + 0.1 mV- 0.1 to + 0.1 mV

7-6

Measured voltage__ __ __. __ __ __ __ __ V__ __ __. __ __ __ __ __ V__ __ __. __ __ __ __ __ V__ __. __ __ mV__ __. __ __ mV__ __ __. __ __ __ __ __ V__ __ __. __ __ __ __ __ V__ __ __. __ __ __ __ __ V__ __. __ __ mV__ __. __ __ mV

LP6016-01P

7.5 Performance testing

7.5.4

Testing load regulation

The following is how to test for V1 output voltage as well as V2 output voltage.
• Connect the devices as shown in Figure 7-5.
Set the DC electronic load to 100 mA or use a load resistor of 100 Ω.
• Set the V1 output voltage of LP6016-01P to + 10.0000 V and turn on the output.
• Measure the DC voltage with the digital multimeter-1.
The measured voltage when the load is connected is defined as V100[V].
The measured voltage when the load is not connected is defined as V0[V].
• Load regulation is calculated by “V100 - V0”.
• Refer to Table 7-4 and check that specification "± 5 mV" is satisfied.
[Caution] The load resistor (100 Ω) produces high temperature.
Be careful not to place it on melty vinyl or paper that may burn. Do not touch the load
resistor directly.

Figure 7-5 Diagram of connection when testing load regulation(For measurement on the V2 side, make the connection shown with the broken line.)
Table 7-4 Judgement for load regulation
Output polarity
V1

V2

Item
V0
V100
V100 - V0
V0
V100
V100 - V0

Passing range- 5 to + 5 mV
- 5 to + 5 mV

7-7

Measured voltage__ __ __. __ __ __ __ __ V__ __ __. __ __ __ __ __ V__ __. __ __ mV__ __ __. __ __ __ __ __ V__ __ __. __ __ __ __ __ V__ __. __ __ mV

LP6016-01P

7.5 Performance testing

7.5.5

Testing current-monitor accuracy

The following shows how to test for current-monitor accuracy.
• Connect the devices as shown in Figure 7-6.
• Set both V1 and V2 output voltages of LP6016-01P to + 10.0000 V and turn on the outputs.
• Measure the DC voltage with the digital multimeter-1, which is defined as “VM[V]”.
Measure the DC current with the digital multimeter-2, which is defined as “Io[A]”.
• Current-monitor accuracy is calculated by {Io - (0.1 × VM)} / Io × 100.
• Refer to Table 7-5 and check that specification "± (1 % + 1.5 mA)" is satisfied.

Figure 7-6 Diagram of connection when testing current-monitor accruacy(For measurement on the V2 side, make the connection shown with the broken line.)
Table 7-5 Judgement for current-monitor accuracy
Output polarity
V1

V2

Item
VM
IO
{Io - (0.1 × VM)} / Io × 100
VM
IO{Io - (0.1 × VM)} / Io × 100

7-8

Passing range- 2.5 to + 2.5%
- 2.5 to + 2.5%

Measured voltage__ __ __. __ __ __ __ __ V__ __. __ __ __ __ __ A__ __. __ __ %__ __ __. __ __ __ __ __ V__ __. __ __ __ __ __ A__ __. __ __ %LP6016-01P

7.6 Calibration

7.6

Calibration
Although this product depends on the use environment or frequency of use, conduct "7.5

Performance testing" at least once a year. Also, when using it for important measurements and tests,
it is recommended to test before use.
Calibration is available at charge and can be requested from NF Corporation or an authorized
agent.
If the performance test indicates that this product does not satisfy the specifications, re-adjustment
or repair is required. In such a case, contact NF Corporation or an authorized agent.

7-9

LP6016-01P

8. Specifications

8.1

Regulator type ......................................................................................................... 8-2

8.2

Output characteristics .............................................................................................. 8-2

8.3

Limit function of setting output voltage ..................................................................... 8-3

8.4

Current monitor ........................................................................................................ 8-3

8.5

Power supply ........................................................................................................... 8-3

8.6

Interface for remote control ...................................................................................... 8-4

8.7

Others ...................................................................................................................... 8-4

8.7.1

Output common terminal (COM) .............................................................................. 8-4

8.7.2

Enclosure terminal (CHASSIS) ................................................................................ 8-4

8.7.3

Insulation resistance ................................................................................................ 8-4

8.7.4

Withstanding voltage ................................................................................................ 8-4

8.7.5

Protection function ................................................................................................... 8-5

8.7.6

Setting of power on .................................................................................................. 8-5

8.7.7

Environmental conditions ......................................................................................... 8-5

8.7.8

Dimensions and weight ............................................................................................ 8-5

8.7.9Standards ................................................................................................................ 8-5

8.8External dimensions ................................................................................................. 8-6

8-1

LP6016-01P

8.1 Regulator type

8.1

Regulator type
Series regulator

8.2

Output characteristics
Output terminal

BNC receptacle connector

V1 and V2

Voltage range

0.000 0 to + 16.100 0 V

V1 OUTPUT

0.000 0 to + 16.100 0 V

V2 OUTPUT

Setting resolution

500 μV

Setting method

By manual operation or remote PC control.
V1 and V2 output voltages can be tracked depending on the setting.
(When tracked, LED of "VOLT TRACKING" lights up.)

Setting accuracy± ( 0.03 % of setting + 250 μV)

23 C ± 5 C, no load.

The monotonicity is guaranteed(when temperature and output current are constant).
Temperature coefficient ± 10 ppm/C (typical)
Maximum current

100 mA

Output Voltage ≧ 1V
0 to 50 C

100 mA

Output Voltage ＜ 1V
0 to 40 C

90 mA

Output Voltage ＜ 1V
40 to 50 C

Settling time

100 msBoth rise and fall，no load

Line regulation

Within ±0.1 mV

For supply voltage ±10 %Load regulation

Within ±5 mV

Load 0 mA reference
for 0 to 100 mA

Ripple noise

10 μVrms or lower (typical)

Bandwidth 10 Hz to 20 MHz
Output current 0 to 100 mA

Time drift±40 ppm (typical)

8 hours after 60-minute warm-up
Output voltage +16.1000 V

Output ON/OFF

By manual operation or remote PC control.
V1 and V2 outputs ON/OFF can be coupled, that is switched at the sametime, depending on the setting.
(When coupled, LED of "ON / OFF COUPLED" lights up.)

Output common

The output common (COM) and enclosure (chassis) are isolated.

8-2

LP6016-01P

8.3 Limit function of setting output voltage

8.3

Limit function of setting output voltage
Function

This is a function to prevent erroneous excessive voltage from being
applied. The output voltage exceeding the limit voltage cannot be set.

Setting range
Setting resolution

8.4+ 0.000 5 to + 16.100 0 V

V1 OUTPUT+ 0.000 5 to + 16.100 0 V

V2 OUTPUT

500 μV

Current monitor
Output signal *8-1

Voltage outputs with conversion gain of 1 V/100 mA.

Output terminal *8-2

BNC receptacle connector

Output impedance

1 kΩAccuracy± (1 % + 1.5 mA)

23 C ± 5 C

± (1 % + 2 mA)

0 to 50 C

V1 and V2

In current equivalent, no load
*8-1: Built in low pass filter of about 300 Hz.
*8-2: The common of the voltage outputs and current monitors are the same (COM).

8.5

Power supply
Voltage

AC 100/120/220/240 V ±10 %However, must not exceed AC 250 V.
Select using “VOLTAGE SELECTOR” switch on rear panel

Frequency

50 /60 Hz ± 2 Hz

Power consumption

28 VA or lower

Overvoltage category

II

Fuse

Use the rated fuses listed in Table 8-1.

Table 8-1 Fuse rating
Power supply voltage
100 V
120 V
220 V
240 V

Rated current

Rated voltage

Remark

250 V

Time-lag type
ϕ 5.2 × 20 mm

0.4 A
0.2 A

8-3

LP6016-01P

8.6 Interface for remote control

8.6Interface for remote control
USB

USB2.0 full speed, device class CDC

RS-232Connector: D-sub 9pin, male
Baud rate: Select from 4 types:
9600, 19200, 38400, or 57600 bps
Parity: Select from 3 types:
NONE, ODD, or EVEN
Handshake: Select from 3 types:
NONE, SOFTWARE, or HARDWARE
Program and response message terminator: Select from 3 types:
CR, LF, or CR LF
Data length: 8 bits
Stop bit: 1 bit

LAN

10BASE-T/100BASE-TX, TCP/IP

8.7

Others8.7.1

Output common terminal (COM)This terminal is connected to the output common (COM) and corresponds to the banana plug of ϕ 4
mm. Wire of ϕ 2.5 mm or less can also be connected.
8.7.2

Enclosure terminal (CHASSIS)

This terminal is connected to the enclosure (CHASSIS) and corresponds to the banana plug of ϕ 4
mm. Wire of ϕ 2.5 mm or less can also be connected.
8.7.3

Insulation resistance

Between all power inputs and chassis

50 MΩ or more (with DC 500 V)

Between all power inputs and outputs

50 MΩ or more (with DC 500 V)

Between output common (COM) and chassis

10 MΩ

8.7.4

Withstanding voltage

Between all power inputs and outputs/chassis

AC 1500 V for 1 minuteBetween output common (COM) and chassis± 42 Vpk (DC + AC peak)

8-4

LP6016-01P

8.7 Others

8.7.5

Protection function

Over current protection

Drooping characteristic (about 150 mA, self recovery type)

Over current indication"OCP" is displayed and flashes (when output current exceeds
about 100 mA)

Over heat protection

Outputs are turned off when an internal temperature exceeds thethresholdOver heat indication
8.7.6"OHP" is displayed and flashes

Setting of power on

At power-on, each setting condition will be the same as that when powered off last time.
However, only the output ON/OFF state is selectable by the following setting.
Always ON, Always OFF, Last state
8.7.7

Environmental conditions

Altitude2000 m or lower

Operating temperature range

0 to +50 C

Operating humidity range

5 to 85 %RH, absolute humidity 1 to 25 g/m3, non-condensation

Storage temperature range-10 to +60 C

Storage humidity range

5 to 95 %RH, absolute humidity 1 to 29 g/m3, non-condensation

Cooling method

Natural convection cooling

Pollution degree

2 (indoor use)

Warm-up time

60 minutes

8.7.8

Dimensions and weight

Dimensions (W×H×D)

215 × 86 × 330 mm (without protrusions)

WeightApprox. 3.5 kg (without accessories)

8.7.9

Standards

RoHS

Directive 2011/65/EU

EMC *8-3

EN 61326-1
EN 61000-3-2
EN 61000-3-3

Safety *8-3

EN 61010-1*8-3: Only models with CE marking on the rear panel

8-5

LP6016-01P

8.8 External dimensions

8.8

External dimensions

Figure 8-1 External dimensions
8-6

LP6016-01P

Memo page

8-7

LP6016-01P

9. Typical data

9.1

Typical data.............................................................................................................. 9-2

9.2

Output noise voltage density frequency characteristics ............................................ 9-2

9.3

Time stability ............................................................................................................ 9-3

9.4

Temperature coefficients .......................................................................................... 9-4

9-1

LP6016-01P

9.1 Typical data

9.1

Typical data
Representative performance of this product is described for reference. For individual products, theperformance may not reach this data, but we confirm that all products comply with the specifications
by conducting strict shipping tests.

Output noise voltage density frequency characteristics
The output noise voltage density frequency characteristics are shown in Figure 9-1.
Conditions: +16.1000 V, 100 mA

1μLP6016-01P

Hz ]Output-noise voltage density [V /9.2

Background
100n

10n

1n

100p
10

100

1k

10k

100k

1M

10M

Frequency [Hz]Figure 9-1 Output noise voltage density frequency characteristics

9-2

LP6016-01P

9.3 Time stability

Time stability
The time stability of the output voltage after 60 minutes of warm-up is shown in Figure 9-2.

800

50

640

40

480

30

320

20

160

10

0

0

-160

-10

-320

-20

-480

-30

-640

-40

-800

Voltage variation [ppm]Conditions: +16.1000 V, 100 mA, ambient temperature within 23 C ± 3 C

Voltage variation [μV]

9.3

-50
0

20

40

60

80

100

120

140

160

180

200

Time [h]Figure 9-2 Time stability

9-3

LP6016-01P

9.4 Temperature coefficients

9.4

Temperature coefficients
The temperature coefficients of the output voltage are shown in Figure 9-3. The vertical axes in the

figures are the normalized values at ambient temperature (23 C).
Conditions: +16.1000 V, no load

Voltage variation [mV]

-10 ppm/C+10 ppm/C

Temperature [C]
Figure 9-3 Temperature coefficients

9-4

LP6016-01P

Memo page

9-5

LP6016-01P

WARRANTYNF Corporation certifies that this product was thoroughly tested and inspected and found tocomply with its published specifications when it was shipped from our factory. In the unlikely
event that you experience an issue during use, please contact our company or an authorized
agency from which you purchased the product.
All NF Corporation products are warranted against defects in materials and workmanship for aperiod of one year from the date of shipment. During the warranty period, NF Corporation will
repair the defective product without any charge for the parts and labor.
For repair service under warranty, the product must be returned to either NF Corporation or an
authorized agent. The Purchaser shall prepay all shipping costs, duties, and taxes for the
product to NF Corporation from another country, and NF Corporation shall pay shipping
charges to return the product to the purchaser.
This warranty shall not apply when corresponding to the 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 Coroporation.
D) Failure caused by abnormal voltage or the effect of equipment connected to thisproduct.
E) Failure caused by the effect of supply parts from the customer.
F) Failure caused by such as corrosion from the use of caustic gases, organic solvents,
and chemicals.
G) Failure caused by insects or small animal that invaded from the outside.
H) Failure or damage caused by fire, earthquakes, flood damage, lightning, war, or otheruncontrollable events.
I) Failure caused by unforseen reasons due to the limits of the technology when shippedfrom our company.
J) Replacement and replenishment of consumables such as batteries.

NF Corporation

Request for Repair
When a failure occurred and the product was found to be defective or you have any
uncertainty, please contact NF Corporation or an authorized agent.
In such a case, let us know the model name (or product name), serial number (SERIAL No.
given on the nomenclature plate), and symptoms and operating conditions in as much detail as
possible.
Though we will make efforts to reduce the repair period, when five or more years have passed
since you purchased the product, it may take time due to, for instance, repair parts being out ofstock.
Also, if the production of repair parts is discontinued, the product is seriously damaged, or the
product is modified, we may decline the repair.

If there are any misplaced or missing pages, we will replace the manual.
Contact a sales 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 this manual.
Copyright 2019-2022, NF Corporation

LP6016-01P INSTRUCTION MANUALNF Corporation
6-3-20, Tsunashima Higashi, Kohoku-ku, Yokohama
223-8508 Japan
Phone: +81-45-545-8111 Fax: +81-45-545-8191

http://www.nfcorp.co.jp/

NF Corporation
6-3-20, Tsunashima-Higashi, Kohoku-ku, Yokohama 223-8508 JAPAN