FREQUENCY RESPONSE ANALYZER

FRA5022
Instruction Manual

NF Corporation

DA00016981-006

FREQUENCY RESPONSE ANALYZER

FRA5022
Instruction Manual

Registered Trademarks
National Instruments is a registered trademark of National Instruments
Corporation in the United States.
Other company names and product names may be trademarks or registeredtrademarks of their respective companies.

――― Preface ―――
Thank you very much for purchasing our “FRA5022 FREQUENCY RESPONSEANALYZER”.
To ensure safe and proper use of this electric equipment, please read first“Safety Precautions”on the following pages.
● Caution Symbols Used in This Manual
The following caution symbols are used in this manual. Be sure to observe thesecaution symbols and their contents to ensure the safety of the user and avoid damage
to the equipment.
！

WARNING

This symbol indicates information for the avoidance of a hazard such as electric shockthat may endanger human life or cause injury during handling of the equipment.

！ CAUTION
This symbol indicates information for the avoidance of damage to the equipment during
handling.

● This manual has the following chapter organization.
If using this equipment for the first time, start from Chapter 1.
1. OUTLINEThis chapter describes the overview, specificities, applications, functions and simple
principle of operations of this product.
2. PREPARATIONS BEFORE USE
This chapter describes important preparation before installation and operation.
3. PANEL FEATURES AND BASIC OPERATIONSThis chapter describes the functions and simple operations available for each panel
screen part.
Read while operation the device.
4. ADVANCED OPERATIONSThis chapter describes even further the device operation.
5. REMOTE CONTROLThis chapter describes remote control through GPIB or USB.
6. TROUBLESHOOTINGThis chapter describes how to deal with error messages and troubles.
7. MAINTENANCE
This chapter describes storage, repacking, transportation as well as performance
testing.
8. SPECIFICATIONSThis chapter describes the product's specifications (functions and performance).

i

FRA5022

――― Safety Precautions ―――
To ensure safe use, be sure to observe the following warnings and cautions.
NF Corporation shall not be held liable for damages that arise from a failure to observe
these warnings and cautions.
This product is a Class I product (with protective conductor terminal) that conforms to the
JIS and IEC insulation standards.
● Be sure to observe the contents of this instruction manual.
This instruction manual contains information for the safe operation and use of thisproduct.
Be sure to read this information first before using this product.
All the warnings in the instruction manual must be heeded to prevent hazards that
may cause major accidents.
● Be sure to ground the product.
This product uses a line filter, which may cause electric shock if the product is not
grounded.
This product is automatically grounded when its three-pole power supply plug isconnected to a three-pole power outlet with a protective-ground contact.
● Check the power supply voltage.
This product operates on the power supply voltage indicated in “Grounding and Power
Supply Connection” in this instruction manual.
Prior to connecting the power supply, check that the voltage of the power supply
matches the rated power supply of the product.
● In case of suspected anomaly
If this product emits smoke, an abnormal smell, or abnormal noise, immediately power
it off and stop using it.
If such an anomaly occurs, prevent anyone from using this product until it has been
repaired, and immediately report the problem to NF Corporation or one of ourrepresentatives.
● Do not use this product when gas is present.
An explosion or other such hazard may result.
● Do not remove the cover.
This product contains high-voltage parts. Absolutely never remove its cover.
Even when the inside of this product needs to be inspected, do not touch the inside. Allsuch inspections are to be performed by service technicians designated by NF
Corporation.

ii

FRA5022

Safety Precautions● Do not modify this product.
Absolutely never modify this product, as this may cause new hazards and may
disqualify this product from repair in case of failure.
● Safety-related symbols
The general definitions of the safety-related symbols used on this product and in the
instruction manual are provided below.

！

Instruction Manual Reference SymbolThis symbol is displayed to alert the user to potential danger and referhim/her to the instruction manual.
Electric Shock Danger SymbolThis symbol indicates locations that present a risk of electric shock
under specific conditions.

！

WARNING

Warning SymbolThis symbol indicates information for the avoidance of a hazard
such as electric shock that may endanger human life or cause
injury during handling of the equipment.

！ CAUTION

Caution SymbolThis symbol indicates information for the avoidance of damage tothe equipment during handling.

● Other symbols
This symbol indicates the "on" position of the power switch.
This symbol indicates the "off" position of the power switch.
Shows when connected to the case.
Shows when connected to the ground.
● Note on Waste Processing
To protect the environment, ensure that this device is disposed of by anappropriate industrial waste processor. Also note the following:・This device includes lithium batteries.

iii

FRA5022

Contents
Page
1． OUTLINE ..................................................................................................................... 1-1
1.1

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

1.2

Applications ............................................................................................................ 1-2

1.3

List of Functions ..................................................................................................... 1-3

1.4

Principle of Operation ............................................................................................. 1-5

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

Checking Before Use .............................................................................................. 2-2

2.2

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

2.2.1

General Precautions for Intallation ................................................................... 2-3

2.2.2

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

2.2.3

Rack Mounting ................................................................................................. 2-4

2.3

Grounding and Power Supply Connection .............................................................. 2-9

2.4

Simplified Operation Check .................................................................................. 2-10

2.5

Calibration ............................................................................................................ 2-11

3． PANEL FEATURES AND BASIC OPERATIONS ........................................................... 3-1
3.1

Panel Component Names and Functions ............................................................... 3-2

3.2

Display at Power “ON” and Initial Settings .............................................................. 3-5

3.2.1

Check before Power “ON” ................................................................................ 3-5

3.2.2

Displays and Indications at Power “ON” ........................................................... 3-6

3.2.3

Initialization ...................................................................................................... 3-6

3.3

I/O Terminals .......................................................................................................... 3-9

3.3.1

Oscillator Output Terminal ................................................................................ 3-9

3.3.2

Analyzer Input Terminal .................................................................................. 3-10

3.3.3

Signal Terminal Isolation ................................................................................ 3-11

3.4

I/O Connection ..................................................................................................... 3-12

3.5

Basic Operations .................................................................................................. 3-13

3.5.1

Simplified Sweep Measurement ..................................................................... 3-13

3.5.2

Setup Screen, Measurement Screen Switchover ........................................... 3-14

3.5.3

Menu Screen Basic Operation ....................................................................... 3-15

3.5.4

System Menu Screen ..................................................................................... 3-17

3.5.5

Sweep Menu Screen ...................................................................................... 3-20

3.5.6

Spot Menu Screen.......................................................................................... 3-27

3.5.7

Sweep Measurement ..................................................................................... 3-30

3.5.8

Sweep Measurement Screen ......................................................................... 3-31

3.5.9

Spot Measurement ......................................................................................... 3-32

3.5.10Spot Measurement Screen ........................................................................... 3-33

3.5.11

Measured Values of Excessive Input ............................................................ 3-34

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FRA5022

Contents

4． ADVANCED OPERATIONS .......................................................................................... 4-1
4.1

Setup Screen .......................................................................................................... 4-2

4.1.1

Setup Screen Display ....................................................................................... 4-2

4.1.2

Sweep Setup Screen ....................................................................................... 4-2

4.1.3

Spot Setup Screen ........................................................................................... 4-3

4.1.4

Oscillator Setup Screen ................................................................................... 4-3

4.2

Settings Memory .................................................................................................... 4-4

4.2.1

Setting Memory Description ............................................................................. 4-4

4.2.2

Setting Memory Setup Items ............................................................................ 4-4

4.2.3

Setting Memory Operation ............................................................................... 4-5

4.3

Result Evaluation ................................................................................................... 4-6

4.3.1

Evaluation Range Setting ................................................................................. 4-6

4.3.2

Evaluation Display ........................................................................................... 4-6

4.4

Scan Measurement ................................................................................................ 4-7

4.4.1

Scan Related Setup Items................................................................................ 4-7

4.4.2

Scan Measurements Operation and Function .................................................. 4-7

4.5

Servo System Measurement .................................................................................. 4-9

4.6

Data Memory ........................................................................................................ 4-12

4.7

Equalizer .............................................................................................................. 4-13

4.8

Oscillator Output Terminal Change Rate Limit (SLOW) ........................................ 4-14

5． REMOTE CONTROL.................................................................................................... 5-1
5.1

Preparations Before Use ........................................................................................ 5-2

5.1.1

USB Preparations ............................................................................................ 5-2

5.1.2

GPIB Preparations ........................................................................................... 5-2

5.1.3

Remote Control Interface Selection.................................................................. 5-2

5.1.4

USB Device Identification ................................................................................. 5-3

5.1.5

GPIB Address Setting ...................................................................................... 5-3

5.1.6

Necessary Precautions When Using GPIB ....................................................... 5-3

5.2

Remote State Display and Cancellation .................................................................. 5-3

5.3

Command List ........................................................................................................ 5-4

5.4

Command Tree ....................................................................................................... 5-9

5.5

Command Explanation ......................................................................................... 5-10

5.5.1

Summary of Terms ......................................................................................... 5-10

5.5.2

Command Detailed Explanations ................................................................... 5-11

5.6

Status System ...................................................................................................... 5-33

5.6.1

Status System Overview ................................................................................ 5-33

5.6.2

Status Byte ..................................................................................................... 5-34

5.6.3

Standard Event Status .................................................................................... 5-35

5.6.4

Operation Status ............................................................................................ 5-37

5.6.5

Overload Status ............................................................................................. 5-39

5.7

Programming Cautions ......................................................................................... 5-40v

FRA5022

Contents

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

Error Messages ...................................................................................................... 6-2

6.1.1

Errors at Power-On .......................................................................................... 6-2

6.1.2

Error During Panel Operation ........................................................................... 6-3

6.1.3

Remote Control Errors ..................................................................................... 6-3

6.2

When Fault Symptoms are Observed ..................................................................... 6-4

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

Checking Version Number ...................................................................................... 7-3

7.5

Checking Isolation .................................................................................................. 7-3

7.6

Checking Oscillator Output Wave Form .................................................................. 7-3

7.7

Performance Testing ............................................................................................... 7-3

7.7.1

Frequency Accuracy Test ................................................................................. 7-4

7.7.2

Oscillator AC Amplitude Accuracy Test ............................................................. 7-4

7.7.3

Oscillator DC Bias Accuracy Test ..................................................................... 7-4

7.7.4

Ratio Accuracy Test.......................................................................................... 7-5

7.7.5

IMRR Test ........................................................................................................ 7-6

7.7.6

Dynamic Range Test ........................................................................................ 7-6

7.8

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

8． SPECIFICATIONS ........................................................................................................ 8-1
8.1

Oscillator ................................................................................................................ 8-2

8.2

Analyzer Input ........................................................................................................ 8-3

8.3

Analysis Processor ................................................................................................. 8-3

8.4

Measurement Processing ....................................................................................... 8-4

8.5

Display Part ............................................................................................................ 8-5

8.6

Settings Memory .................................................................................................... 8-5

8.7

Remote Control Interface ....................................................................................... 8-5

8.8

General Information ................................................................................................ 8-6

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FRA5022

Attached figures and tables

Figure 1-1

Page
Block Diagram ................................................................................................ 1-5

Figure 2-1

Size and dimensions of the rack-mount (mm-rack) ......................................... 2-5

Figure 2-2

Size and dimensions of the rack-mount (inch-rack) ........................................ 2-6

Figure 2-3

Mounting rack-mount adapter (mm-rack) ........................................................ 2-7

Figure 2-4

Mounting rack-mount adapter (inch-rack) ....................................................... 2-7

Figure 2-5

Removal of feet .............................................................................................. 2-8

Figure 3-1

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

Figure 3-2

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

Figure 3-3

Oscillator output terminal ................................................................................ 3-9

Figure 3-4

Analyzer input terminal ................................................................................. 3-10

Figure 3-5

Insulation voltages of input and output terminals .......................................... 3-11

Figure 3-6

Connection with the system under test (SUT) ............................................... 3-12

Figure 3-7

OSCILLATOR－CH1 internal connection ...................................................... 3-12

Figure 3-8

Setup screen, measurement screen switchover (description) ....................... 3-14

Figure 3-9

System menu screen .................................................................................... 3-17

Figure 3-10

Sweep menu screen ................................................................................... 3-20

Figure 3-11

Spot menu screen ....................................................................................... 3-27

Figure 3-12

Sweep measurement control keys .............................................................. 3-30

Figure 3-13

Sweep measurement screen ...................................................................... 3-31

Figure 3-14

Spot measurement control key ................................................................... 3-32

Figure 3-15

Spot measurement screen .......................................................................... 3-33

Figure 4-1

Setup key ....................................................................................................... 4-2

Figure 4-2

Sweep setup screen (ex.) ............................................................................... 4-2

Figure 4-3

Spot setup screen (ex.) ................................................................................... 4-3

Figure 4-4

Oscillator setup screen (ex.) ........................................................................... 4-3

Figure 4-5

Evaluation result display ................................................................................. 4-6

Figure 4-6

Scan measurement ......................................................................................... 4-7

Figure 4-7

Connection for servo system measurement .................................................... 4-9

Figure 4-8

Measurement voltage range magnification example ..................................... 4-11

Figure 4-9

Connection with equalizer ............................................................................. 4-13

vii

FRA5022

Figure 5-1

Command tree ................................................................................................ 5-9

Figure 5-2

Status system ............................................................................................... 5-33

Figure 5-3Standard event status structure .................................................................... 5-35

Figure 5-4

Operation status structure ............................................................................ 5-37

Figure 5-5Overload status structure .............................................................................. 5-39

Figure 8-1

External dimensions ....................................................................................... 8-8

Table 2-1

Package Contents ............................................................................................ 2-2

Table 3-1

Setting items and initial values ......................................................................... 3-7

Table 4-1

Setup items and screen handling ..................................................................... 4-4

Table 5-1

FRA5022 subsystem command list .................................................................. 5-4

Table 5-2

Common command list ..................................................................................... 5-7

Table 5-3

Status byte register definitions ....................................................................... 5-34

Table 5-4

Standard event status register contents ......................................................... 5-35

Table 5-5

Operation condition register contents ............................................................. 5-38

Table 5-6

Overload event register contents .................................................................... 5-39

viii

FRA5022

1． OUTLINE

1.1

Features ······················································ 1-2

1.2

Applications ·················································· 1-2

1.3

List of Functions ············································ 1-3

1.4

Principle of Operation ····································· 1-5

1-1

FRA5022

1.1 Features

1.1

Features“FRA5022 Frequency Response Analyzer” allows you to obtain the frequency response
characteristics (change of gain and phase vs frequency) of a system under test by
supplying sine wave signals to the system under test and by analyzing the response
signals.
 Oscillator frequency 0.1mHz to 100kHz
Covers the most suitable ranges to measure electrochemical impedance or analyze
mechanical system servo.
 2-channel simultaneous measurement
The 2-channel analyzer enables parallel signal reception, thus reducing themeasurement time at lower frequencies compared to devices that receive signals
sequentially via both channels.
 Input-Output isolation
The 2-channel analyzer input and the oscillator output are independently isolated
from the case, thus facilitating the signal supply to the system under test when inservo analysis.
 Graph display
It is possible to display the frequency characteristics on a color liquid crystal display
as Bode diagrams.
 Quick settings switchover
It is possible to switchover preset settings by pressing one button.
 Slim type
With a height of only 88mm (2U), the device fits conveniently in a system rack.
 Data display software
The supplied software allows you to easily export data to a personal computer, savedata in CSV format, and display data as various graphs.

1.2

Applications

 Servo systems
Measurement of servo characteristics of systems such as CD/DVD players, etc.
 Electronic circuits
Measurement of frequency characteristics of systems such as filters, amplifiers, etc.
 Acoustics
Measurement of frequency characteristics of systems such as speakers, microphones,etc.
 Vibration analysis
Measurement of resonance characteristics
 Electrochemicals
Metallic corrosion studies, battery performance measurement (electrochemical
impedance measurement)

1-2

FRA5022

1.3 List of Functions

1.3

List of Functions

Below is a tree listing of available functions.
Oscillator

SLOW
AC/DC ON
AC/DC OFFAC OFF
Frequency
AC amplitude
DC biasrms/peak switching

Sweep measurement

UP
DOWN
HOLD
STOP
Frequency scale
Maximum frequency
Minimum frequency
Frequency point
Automatic/Manual switching

Spot measurement

SPOT: switching to spot display
Repeat/Single switching
Phase display lower limit
Gain passing range upper limit
Gain passing range lower limit
Phase passing range upper limit
Phase passing range lower limit
Scan

Measurement settings

Measurement mode

CH2/CH1
CH2/OSC

Integration time
Integration cycle
Delay time
Data memory control

Display mode

A
B
A&B
A/B

Store to memory B

1-3

FRA5022

1.3 List of Functions

Graph display

Display format

GdB, P - F
G (linear), P - F
a - b (additional display of values)

Gain upper limit
Gain lower limit
Phase upper limit
Phase lower limit
Automatic scaling
Frequency axis magnification (MAG)Cursor
Cursor speed
Excessive input

CH1 detection levelCH2 detection level
Action on detection

Settings memory

Settings title
Settings lock
Settings initialization
Settings copy
One touch switching

SystemSelf calibration
Total initialization
Scan upper limit
Automatic scan
Error reset
Switch to LOCALInterface

Interface selection

1-4

OVER light up
BEEP
HOLD
OSC OFF

GPIB
USB

GPIB address
Serial No.

FRA5022

1.4 Principle of Operation

1.4

Principle of Operation“FRA5022 Frequency Response Analyzer” obtains the vector ratio V 2/V1 of the response
signal V1 and V2 by supplying a sine wave test signal V 0 from its internal oscillator to thesystem under test, more specifically, the gain G = | V2/V1 | and phase differential
P = ∠V2 - ∠V1 at a given frequency. Below are the block diagram and operation outlineof FRA5022.

LCD
Color Display

Panel
Key & Lamp

GPIB
USB

Main Processor

Isolator

Isolator

Isolator

Oscillator

Analyzer CH1

Analyzer CH2

SignalConditioner

D/A
Amplitude

DC BiasSub Processor∫

V2

SignalConditioner

A/D

Sin
Cos

Y

∫

A/D

Sub Processor
X
Y

Sin
Cos

∫

X

∫

Y

V0
X
V1
Signal vector

V0

V1

V2

System Under Test
Figure 1-1

Block Diagram Main Processor
According to the user’s operation, the main processor controls the oscillator andanalyzer to calculate, output, and display the vector ratio of the signals obtained by the
analyzer. By using the direct digital frequency synthesis method based on the reference
quarts-crystal resonator, the main processor generates accurately pitched digital sine
wave signals (Sin, Cos) to be used by the oscillator or analyzer.
 Oscillator
The FRA5022 oscillator converts digital sine signals to analog signals with D/A (Digital
to Analog) converters and filters. It also adds DC bias before output.
1-5

FRA5022

1.4 Principle of Operation
 Analyzer
The analyzer performs, via the signal conditioner, appropriate adjustments such as leveladjustment on the response signals from the system under test, and converts them todigital signals via the A/D (Analog to Digital) Converter. The subprocessor obtains thetwo orthogonal components of the signal (the signal vectors) by multiplication andintegration of the response signal with orthogonal reference signals (Sin, Cos). This
process allows to attenuate frequency components that do not match the signal
frequency and thus render possible accurate measurements even with considerable
noise.

1-6

FRA5022

2． PREPARATIONS BEFORE USE

2.1

Checking Before Use ······································ 2-2

2.2

Installation ···················································· 2-3

2.2.1

General Precautions for Intallation ················ 2-3

2.2.2

Installation Conditions ································ 2-3

2.2.3

Rack Mounting ········································· 2-4

2.3

Grounding and Power Supply Connection ··········· 2-9

2.4

Simplified Operation Check ···························· 2-10

2.5

Calibration ·················································· 2-11

2-1

FRA5022

2.1 Checking Before Use

2.1

Checking Before Use■ Safety check
Before using FRA5022, make sure you read “Safety Precautions”, located at the
beginning of this instruction manual and observe the required cautions.
Before turning the power on, read “2.3 Grounding and Power Supply Connection” andobserve the necessary cautions.

■ Unpacking
Check that the device has not been damaged during transit.
Before installing the device, make sure that the contents listed below in “Table 2-1
Package Contents” are supplied in the carton.
Table 2-1

Package Contents

FRA5022 Body ································································ 1
Instruction Manual ························································· 1Power Cord Set (3 Pole, 2m) ··············································· 1
CD-ROM ········································································ 1Contents

・ Data display software
・ LabVIEW driver・ Sample program

The data display software allows you to easily import the data from FRA5022 to apersonal computer, save data in CSV format, display data as various graphs, and set main
parameters.
Instructions for using the CD-ROM contents are not contained in this manual. For details
on the contents, please refer to the instruction manual separately available in the
CD-ROM. To view the CD-ROM contents, Adobe Acrobat Reader Ver.5 or later must be
installed on your computer.

！

WARNING
This device contains high-voltage parts. Never remove the cover.
The internal parts of this device must only be serviced by an engineer who
has a thorough understanding of risk prevention.

2-2

FRA5022

2.2 Installation

2.2

Installation

2.2.1 General Precautions for Intallation！ CAUTION

Take the following precautions to prevent damage to FRA5022.
・ FRA5022 is cooled by forced air-cooling. The air is inhaled from the bottom
front panal and is exhaled from the center of the rear panal. Do not block
the air inlet and outlet.
・ When installed with the real panel facing downward (in the uprightposition), FRA5022 sits unstably and easily topples down. Make sure thatthe device is intalled in the horizontal position (with the bottom panel
facing downward).

■ Handling of the panel and case
The front panel of FRA5022 is made of plastic. It can be damaged by sharp or hot tools.
When the case/panel surface needs cleaning, wipe with a soft cloth. To remove
persistent contamination, wipe with a soft cloth soaked with neutral detergent andwrung out. Do not use any organic solvents like thinner or benzene, or any chemicalcleaning cloth, as they may cause the surface finish to deteriorate, tarnish, or come off.

2.2.2 Installation Conditions
Install FRA5022 in a location that fills the following temperature and humidity
requirements.
Performance guarantee: +5 to +35℃, 5 to 85% RH (where absolute humidity is 1 to
25g/m3, non-condensing), Altitude:2000m or less
Operation: 0 to +40℃, 5 to 85% RH (where absolute humidity is 1 to 25g/m3,
non-condensing), Altitude:2000m or less
Storage: -10 to +50℃, 5 to 95% RH (where absolute humidity is 1 to 29g/m3,
non-condensing)
Do not install in locations such as:
・ location with direct sunlight or with a nearby source of heat・ location with significant amounts of dust, salt, metallic powders
・ location with significant amounts of corrosive gases, vapor, soot・ location exposed to excessive vibration
・ location close to a strong magnetic or electromagnetic field source
・ location close to a pulsing noise source
If measurement accuracy is important, perform warm-up for two hours or more and selfcalibration before measurement. It is recommended that self calibration be performed
again when the ambient temperature has varied by five degrees or more or when thedevice has been operated continuously for 24 hours or more.
Make sure that enough distance is allowed between the power cable and the signal cable.
Otherwise, measurements may vary greatly due to malfunction or noise.
2-3

FRA5022

2.2 Installation

2.2.3 Rack Mounting
FRA5022 can be mounted on a 19-inch IEC rack, an EIA specification rack or a JIS
standard rack by the use of a rack-mount adapter (optional).
First, mount the rack-mount adapter on the device as shown in “Fig. 2-3 Mounting
rack-mount adapter (mm-rack)” or “Fig. 2-4 Mounting rack-mount adapter (inch-rack)”, andthen, mount the device on the rack.

！ CAUTION

Take the following precautions when you mount the device on the rack: Support the FRA5022 by all means by installing some supports such asrails on the rack.
Otherwise, FRA5022 may fall, causing injury or damaging itself.
 Make sure that the rack is sufficiently air-cooled by providing appropriate
ventilation ports or cooling fans.
FRA5022 has air inlets at the bottom panel. When placing it on top of
another device, allow a clearance of 20mm or more under FRA5022.
Otherwise, performance degradation or damage may be incurred due tothe device temperature exceeding the specified level.

Remove the feet as shown in “Fig. 2-5 Removal of feet” when they interfere with the rail.

2-4

FRA5022

Figure 2-1

2-5

Surface treatment
Rack-mount adapter: Paint: Ultra Light Gray (Munsell 6. OPB9. 2/0. 1)

CautionWhen mounting on the rack, do not use only the rack-mount adapter.
Make sure that the rack uses L metal fittings or shelves to hold the body.

Rack mounting plane

Removable

2.2 Installation

Size and dimensions of the rack-mount (mm-rack)

FRA5022

Figure 2-2

2-6

Surface treatment
Rack-mount adapter: Paint: Ultra Light Gray (Munsell 6. OPB9. 2/0. 1)

CautionWhen mounting on the rack, do not use only the rack-mount adapter.
Make sure that the rack uses L metal fittings or shelves to hold the body.

Rack mounting plane

2.2 Installation

Size and dimensions of the rack-mount (inch-rack)

FRA5022

2.2 Installation

Rack-mount adapter mounting
procedure・ Remove the screws on the sides ofthe front panel (2 each).
・ Use the screws supplied with the
rack-mount adapter.

Figure2-3
2-3 Mounting
Mountingrack-mountrack-mountadapter
adapter(mm-rack)(mm-rack)
FigureFigure 2-4

Mounting rack-mount adapter (inch-rack)

2-7

FRA5022

2.2 Installation

Figure 2-5

Removal of feet

2-8

FRA5022

2.3 Grounding and Power Supply Connection

2.3

Grounding and Power Supply Connection■ Grounding！

WARNING
Take the following precautions to avoid risk of electric shock.
Before connecting the device for measurement, make sure the protective
grounding terminal is grounded.
The protective grounding terminal for FRA5022 is the grouding pin of thethree-pole power cord. Make sure you insert the power cord's plug into athree-pole power outlet with a protective grounding contact.

■ Power Supply！ CAUTION

To ensure that FRA5022 is not damaged, make sure to connect to the power
outlet after checking that the power voltage is within the specified range for
the FRA5022.
FRA5022 operates with the following commercial power supply.
Power voltage range: 100 to 230VAC±10％, not exceeding 250VAC
Power frequency range: 50/60Hz±2Hz
Maximum power consumption is 55VA.
Make sure that the power switch is set to OFF before connecting the power cord.
After powering off the device, make sure to wait for at least three seconds before
powering on again.
！

WARNING
This device contains high-voltage parts. Never remove the cover.

The power code set can be used for disconnecting the product from AC power line in case of
emergency.
！

WARNING
Maintain enough space around the inlet, to be able to remove the connectorof a power cord from the inlet. Use a power socket located at convenient
place with adequate space around so that the plug can be removed fromsocket.

2-9

FRA5022

2.4 Simplified Operation Check

2.4

Simplified Operation Check

Before an important measurement or after not having used the device for a long period oftime, it is recommended to check FRA5022 operation by following the procedure describedhere.
1. Plug the power cord into the AC outlet and turn the power switch on.
Wait until the initial messages disappear and the measurement screen is displayed.
2. Check the input/output isolation.
・Use the resistance meter of a tester or multimeter, etc., to measure the resistance
between the external conductor of each of OUTPUT OSCILLATOR, INPUT CH1,
INPUT CH2, and the grounding terminal on the left of the front panel. Check that theresistance is 10MΩ or more.
3. Initialize settings.
Left/Right cursor keys△▽

・Use the MENU key to display the menu screen, select <SYSTEM> tab with the.

・Use the Up/Down cursor keys

to select INITIALIZE all and press the key 1.

4. Connect FRA5022’s OUTPUT OSCILLATOR terminal to an oscilloscope with a
BNC-BNC cable, etc. Set the oscilloscope's parameters as below for example.
・Input impedance: 1MΩ

・Input sensitivity: 2V/DIV・Sweep speed: 0.2ms/DIV・Trigger level: 0V

5. Check the oscillator’s output waveform.
・Press the OSCILLATOR’s SETUP key to display the oscillator's setup screen.
・Use the Up/Down cursor keys to select OSC frequency and set the frequency to 2kHz
for example.
・Use the Up/Down cursor keys to select OSC ac amplitude and set the amplitude to
5Vrms for example.
・Check that a sine wave of the specified amplitude is output and the ON lamp
illuminates after pressing the ON AC/DC key.
6. Change the frequency or AC amplitude.
・Change the frequency to any value and check that the set frequency signal is output.
・Check that the AC amplitude is at the specifed value after pressing the ON AC/DC key
with the AC amplitude changed.
・Lastly, change the amplitude to 1Vrms and press the ON AC/DC key.
7. Branch the output from OUT OSCILLATOR of FRA5022 to the INPUT CH1 and INPUT
CH2 terminals.
Since the signal input/output is isolated from the case, connect the three signal ground
conductors together.

2-10

FRA5022

2.4 Simplified Operation Check
8. Make the sweep measuremnt settings.
・Press the MEASUREMENT SETUP key to display the sweep setup screen.
・With the Up/Down cursor keys, select SWEEP freq. max and set the maximum value
to 100kHz for example.
・With the Up/Down cursor keys, select SWEEP freq. min and set the minimum value to
10Hz for example.
9. Perform a sweep measurement and check that the general gain and phase are in theneighborhood of 0dB and 0deg respectively.
・Press the MEASUREMENT DOWN or UP key.
・After the sweep is complete, check the graph.

2.5

Calibration

Ensure that FRA5022 undergoes the test described in “7.7 Performance Testing” at least
once a year, depending on the use environment and use frequency.
It is recommended to conduct a performance test before using it for an importantmeasurement or test.
If the performance test does not produce satisfying results, NF Corporation will make thenecessary adjustment or calibration to restore performance.
If calibration is necessary, contact NF Corporation or one of our representatives.
You will be liable for the costs of calibration.

2-11

FRA5022

2-12

FRA5022

3． PANEL FEATURES AND BASICOPERATIONS

3.1

Panel Component Names and Functions ············ 3-2

3.2

Display at Power “ON” and Initial Settings ··········· 3-5

3.2.1

Check before Power “ON” ·························· 3-5

3.2.2

Displays and Indications at Power “ON” ········ 3-6

3.2.3

Initialization ············································· 3-6

3.3

I/O Terminals ················································ 3-9

3.3.1

Oscillator Output Terminal ·························· 3-9

3.3.2

Analyzer Input Terminal ··························· 3-10

3.3.3

Signal Terminal Isolation ·························· 3-11

3.4

I/O Connection ············································ 3-12

3.5

Basic Operations ········································· 3-13

3.5.1

Simplified Sweep Measurement ················ 3-13

3.5.2

Setup Screen, Measurement Screen Switchover···································································· 3-14
3.5.3

Menu Screen Basic Operation ·················· 3-15

3.5.4

System Menu Screen ······························ 3-17

3.5.5

Sweep Menu Screen ······························· 3-20

3.5.6

Spot Menu Screen ·································· 3-27

3.5.7

Sweep Measurement ······························ 3-30

3.5.8

Sweep Measurement Screen ···················· 3-31

3.5.9

Spot Measurement ································· 3-32

3.5.10Spot Measurement Screen ····················· 3-33

3.5.11

Measured Values of Excessive Input ········· 3-34

3-1

FRA5022

3.1 Panel Component Names and Functions

3.1

Panel Component Names and Functions

This section describes the names and functions of the components on the front and rear
panels of FRA5022.

3-2

FRA5022

3.1 Panel Component Names and Functions

On the Sweep measurement screen:
Left/Right cursor keys: The frequency
cursor moves left and right.
Up/Down cursor keys: The frequency
axis can be magnified/reduced.
With the MENU or SETUP setup screen:

Power supply switch

Left/Right cursor keys: When at MENU:

Pushing up turns the

moves across a number of screens.

power on, pushing

Up/Down cursor keys: Selects thedown turns it off.

parameters to setup.

Grounding terminal formeasurements
Connected to the case.
Necessary for shielding
the system under test or
for voltage clamp.

LCD Display
Displaysmeasurement
results or setup
screens.

Measurement control key

Register key

Cursor key

With the MENU or SETUP setup screen:Enter a numerical value, press ENTR tovalidate. When entering m (10 -3) or k (103)value, validate with the m or k key.
To enter a title, it is possible to usealphabetical letters by pressing the same key
multiple times. Move with the cursor key.
On the Sweep or Spot measurement screen:
By pressing numerical keys, contents arechanged automatically to the relevant setting
memory and it is possible to execute a
measurement with that setting.

DOWN: A sweep is executed from the maximum frequency to the minimum frequency.
HOLD: Sweep will stop at the frequency when the key is pressed.
UP: A sweep is executed from the minimum frequency to the maximum frequency.
By pressing any of the above 3 keys the screen shifts to the Sweep measurement
screen.
STOP: The sweep is stopped.
SPOT: Switches to Spot measurement and executes a measurement with the set
frequency.
SETUP: Displays the setup screen for frequently used measurements parameters.
By pressing it one more time the screen reverts to the measurement screen.

Internal oscillator output terminal

Menu key
By pressing this key, a setup screen to
setup all the parameters is displayed.
By pressing it one more time, switches
to a measurement screen that reflects
each setup screen.

Outputs a sine wave signal with thefollowing characteristics: frequency:
0.1mHz to 100kHz, Max 10Vpeak, up
to 100mA (When output is set to ON,
the ON lamp is turned on). Signal
ground is isolated from the case as
well as from CH1 and CH2 input.

Secondary functions (functions displayed below the key): depending on the context, some keys
perform as below.
LOCAL: Reverts from remote control to local control (not available if local lockout is set).
SCAN: With the Spot measurement screen: executes a measurement while automatically switchingfrom setting memory 0 to the set number.
pk/rms: When setting AC amplitude, it is possible to switch units in Vpeak (pk) or Vrms.
Figure 3-1

Remote lamp
Turned on during remote control through GPIB
or USB.

Oscillator control key

SLOW Lamp: Turned on when in slow output modification mode.
QUICK: Switches output speed from SLOW to QUICK.
ON AC/DC: Sets values to Output AC amplitude and DC bias.
OFF AC/DC: Sets Output AC amplitude and DC bias to zero.
OFF AC: Sets Output AC amplitude only to zero.
SETUP: Displays the setup screen for frequently used oscillator
parameters.
By pressing it one more time the screen reverts to theAnalyzer input terminals
measurement screen.
Maximum input voltage is ±10V,
signal ground is isolated fromother input channels as well asfrom case and oscillator output.
OVER lamps turns on when
input is excessive.

Front panel

3-3

FRA5022

3.1 Panel Component Names and Functions

HandleNomenclature plate

Certification label

GPIB connector

Cooling fan outlet

AUX connector

USB connector

Power inlet

Provides ±24V power to thesignal injector probe 5055.

Figure 3-2

3-4

Rear panel

FRA5022

3.2 Display at Power “ON” and Initial Settings

3.2

Display at Power “ON” and Initial Settings

3.2.1

Check before Power “ON”

FRA5022 operates with the following commercial power supplies.
Power voltage range: 100 to 230VAC±10％, not exceeding 250VAC
Power frequency range: 50/60Hz±2Hz
Maximum power consumption is 55VA.
！ CAUTION

Make sure to connect to the power socket after checking that the power
voltage is within the specified range for the FRA5022. Otherwise, FRA5022
may be damaged.

！

WARNING
Take the following precautions to avoid accidents due to electric shock.
Before connecting the device for measurement, make sure the protective
grounding terminal is grounded.
The protective grounding terminal for FRA5022 is as three-pole power cord
grounding pin.
Make sure you insert the power cord's plug into a three-pole power socketwith protective-ground contact.

Make sure that the power switch is set to OFF before connecting the power cord.
After turning the power off, make sure to wait for at least 3 seconds before turning it on
again.
！ CAUTION

Wait at least 3 seconds between each power activation/deactivation.
Turning the power on and off in a very short span of time may cause thedevice to not work properly.
Turn the power on according to the following procedure.
・ Make sure that the power switch is OFF (turned downward).
・ Connect the power cord to the power inlet at the back of the device.
・ Insert the power cord's plug to a three-pole power socket.
・ By switching the power switch upward the FRA5022 is turned on.
When the device is turned on the start screen is displayed and self calibration starts. Afterself calibration has ended it is possible to use FRA5022 for measurements.
Display at launch “3.2.2 Displays and Indications at Power “ON” ”
3-5

FRA5022

3.2 Display at Power “ON” and Initial Settings

3.2.2 Displays and Indications at Power “ON”
Take necessary steps before instrument usage/operation according to “2. PREPARATIONSBEFORE USE”.
Upon turning on the power switch, a sound is emitted and the device model name
“FRA5022” as well as version number are displayed. All the lamps are lit for a short spanof time. During this time, various checks, including memory self check are executed. Incase of problem, the following error messages are displayed.
・ROM ERROR:

Internal memory problem.

・SDRAM ERROR:

Internal memory problem.

・BACKUP MEMORY ERROR:

Battery backup contents are broken.
Either the backup battery is empty or there is aproblem with the memory. Parameters are
initialized and the device is launched.

 “6.1.1 Errors at Power-On”
Initialization contents
 “3.2.3 Initialization”
SpecificallyIf there are no battery backup errors, the settings in effect before the last power-off isrecalled.
If the above self check is successful, the following check is signal related check and selfcalibration. When the progress bar has reached 100% and the self calibration has
completed successfully a sound is emitted indicating that FRA5022 is ready for use.
To start the operation under the factory default settings, initialize all the settings byperforming the steps below.
・Use the Left/Right cursor keys
・Use the Up/Down cursor keys
Initialization contents△▽

・Press the MENU key to display the menu screen.
to select the <SYSTEM> tab.

to select INITIALIZE all and press the key 1.

 “3.2.3 Initialization”

3.2.3 Initialization
FRA5022 is reset to the factory default settings in the following cases:
・At the time of shipment from factory
・When the settings stored in memory are found corrupted upon powering on

“3.2.2 Displays and Indications at Power “ON” ”・After executing a total initialization

“3.5.4 System Menu Screen”

Initialized items, initialized contents■ Initialize all “Table 3-1 Setting items and initial values”

3-6

FRA5022

3.2 Display at Power “ON” and Initial Settings
Setting items and initial values (individual settings memory)
Initial values
Setting items
Setting range(factory values,
lost values)
Settings memory Memory selection
0 to 90
SETTING
memoryMax. 18
Title string TITLE
Empty string
characters
Settings change
Free/LockFree
lock
Oscillator
Frequency
0.10m to 100kHz
1kHz
OSC
frequency
AC amplitude
0.000 to 7.07Vrms
10mVrms
ac amplitude（to 10.00Vpeak）
DC bias dc bias
±10.00V
0.00V
Measurement
Measurement mode CH2/CH1 or
CH2/CH1
MEAS
mode
CH2/OSC
Integration time
0.01 to 999.99s
0.02s
integ. time
Integration cycle
1 to 999 cycles
1 cycleinteg. cycle
Delay time
0.00 to 999.99s
0.00s
delay time
Sweep
Frequency axis
log/linear
Log
SWEEP
freq. axis
Maximum
0.11m
frequency
100kHzto 100.00kHz
freq. max
Minimum
0.10m
frequency
1Hz
to 99.999kHz
freq. minFrequency points
3 to 1,000
100
pointsManual/Auto
Manual/AutoAutoman / auto
Measurement
Data memory
A (most recent
display
display mode
A, B, A&B, A/B
measured
DISP
data memory
value)
Coordinate axis
coordinates
・G dB, P - F
F: Frequency
・G , P - F
G dB, P - F
G: Gain・a - b
P: Phase
Graph Y-axis
scaling
Manual/Auto
Auto
scale
Graph gain display-179.9 to 180.0
max
60.0dBdB
gain max
Graph gain display-180.0 to 179.9
min-60.0dB
dB
gain minGraph phase-359.9 to 360.0
display max
180.0deg
degphase max
Graph phase-360.0 to 359.9
display min-180.0deg
deg
phase minSpot phase display
minimum value-360.0 to 0.0 deg-180.0deg
spot phase min
Table 3-1✓: set to initial values
3-7

Total
initialization
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓

✓

✓
✓
✓
✓
✓
✓

Blank: no change

FRA5022

3.2 Display at Power “ON” and Initial Settings

Table 3-1

Setting items and initial values

Setting range

Initial values(factory
values, lost
values)Total
initialization

0.01 to 19.99Vrms

19.99Vrms✓

0.01 to 19.99Vrms

19.99Vrms✓

・OVER lamp
lighting
・Alarm soundgenerated
・Sweep stop・Oscillator OFF

OVER lamp
lighting

Setting items
Excessive
input detection
OVER

Spot
measurement
SPOT

Detection level CH1
level ch1
Detection level CH2
level ch2
Response
response

Repeat measurement
REPEAT
Result evaluation gain
max
GO/NG G max
Result evaluation gainmin
GO/NG G min
Result evaluation phasemax
GO/NG P max
Result evaluation phasemin
GO/NG P min

ON✓±199.99dB

199.99dB✓±199.99dB-199.99dB✓±360.00deg

360.00deg✓±360.00deg-360.00deg✓

Oscillator
OSC
Interface
INTERFACE(measurement
screen)Output on/off

Blank: no change

Setting items and initial values

Setting items
Scanmeasurement
SCAN✓

ON/OFF✓: set to initial values

Table 3-1

Cont. (individual settings memory)

Cont. (system settings, others)

Setting range

Scan memory number
upper limit
limit
Automatic scan
man/auto
Slow on/off
slow on/off
Connection method
connect
GPIB address
address

0: Scan lock,1 to 9－－－Sweep/Spot

Initial values(factory values,
lost values)
0: Scan lock✓

Manual/AutoQuick only
/ Slow enable

Auto
Quick only

GPIB / USB
0 to 30

on/off✓: set to initial values

3-8

Total
initialization

✓
✓

GPIB
2
Sweep
off

Blank: no change

FRA5022

3.3 I/O Terminals

3.3

I/O Terminals

3.3.1 Oscillator Output Terminal
The main specifications for the oscillator's output OSCILLATOR are as bellow.
Maximum output voltage: ±10V/open, ±5V/50Ω
Output impedance: 50Ω, unbalanced
The voltage added to the load is changed according to the load
impedance.
Maximum output current: ±100mA
With short-circuited output and the DC bias 0V, theoutput amperage reaches this maximum allowable limit
when the AC amplitude is approximately 3.5Vrms(5Vpeak).
！ CAUTION

Do not connect to a load exceeding the maximum output current. Do not add
an external signal.
Otherwise, FRA5022 may be damaged.
A warning message may be displayed when the maximum output current isexceeded.
■ Output voltage limits
If the AC amplitude and the DC bias settings produce a composed voltage that exceeds±10V/ open, the output may be clipped.
■ Output when the power is turned off
When the device is powered off or waiting to be ready for measurement after power-on,
the output terminal is isolated from the internal oscillator, with a termination
resistance of 50Ω. When the device is powered on and then off, the output terminal
becomes open for a short duration.

！ CAUTION
Even when the power is off, do not apply an external signal.
Applying a voltage exceeding 5V can damage FRA5022.
OUTPUT
OSCILLATOR

50Ω

50Ω

Figure 3-3

Oscillator output terminal

When the oscillator is turned OFF by using the AC/DC key, the output voltage becomes 0V,
but the output terminal is not isolated from the internal parts.

3-9

FRA5022

3.3 I/O Terminals

3.3.2 Analyzer Input Terminal
The main specifications for the analyzer input CH1 and CH2 are as bellow.
Input impedance: 1MΩ, parallel 60pF
Measurement voltage range: ±10V
Non-destructive maximum input voltage: ±24V
！ CAUTION

Do not apply a signal that exceeds the non-destructive maximum input
voltage.
Otherwise, FRA5022 may be damaged.

■ Input when the power is turned off
When the device is powered off or waiting to be ready for measurement after power-on,
the input terminals as well as the external conductor (ground) are isolated from theinternal parts.
INPUT
CH1
CH2

1MΩ
from
OSCILLATOR
Figure 3-4

Analyzer input terminal■ CH1 input for CH2/OSC
When the measurement mode is set to CH2/OSC, CH1 input terminal is open.
The analyzer CH1 input is connected internally to the oscillator output.
■ Operation on excessive input
When the input signal exceeds the measurement range (±10V) or when the excessive
input voltage specifed for each channel is exceeded, the OVER lamp for the relevant
channel illuminates. Depending on the settings for operations with excessive input, asound may be generated. The OVER lamp or warning sound will not be automatically
cleared even after the excessive input is removed. Clear by pressing the ENTR/RESETERROR key.

3-10

FRA5022

3.3 I/O Terminals

3.3.3 Signal Terminal Isolation
Each of the oscillator output OSCILLATOR, analyzer input CH1 and CH2 are electricallyinsulated from the case.
The insulation voltage between all parts is 42Vpk.
OSCILLATOR, CH1,CH2 BNC connector
Other connector’s outerconductor (ground)
Other connector’s core
conductor (signal)
Case
Figure 3-5

42Vpk

42Vpk

42Vpk

42Vpk

42Vpk

42Vpk

Other connector’s outerconductor (ground)
Other connector’s core
conductor (signal)
Case

Insulation voltages of input and output terminals！ CAUTION

Do not connect the isolated parts to a signal that exceeds 42Vpk.
Otherwise, FRA5022 may be damaged.

3-11

FRA5022

3.4 I/O Connection

3.4

I/O Connection

The connection of the system under test to FRA5022 is described in the following figure.
The oscillator output OSCILLATOR sends a signal to the system under test and thetransfer function between A－B (gain or phase frequency response) is measured.

FRA5022INPUTCH1OUTPUT
OSCILLATOR

Driving
point
Groundpoint

Voltage clamp
Figure 3-6

H

INPUT
CH2

G
B

A

System under test
ShieldConnection with the system under test (SUT)

It is possible to use the FRA5022 front panel grounding terminal as the SUT's ground or
shield.
■ CH1 Input internal connection
When the oscillator output OSCILLATOR is used with the analyzer input CH1 it ispossible to make the connection inside FRA5022. When connecting internally, set themeasurement mode to CH2/OSC. Especially when the frequency is high, the error
compared to CH1 connector connection can become important.

FRA5022OUTPUT
OSCILLATOR

INPUT
CH1

A

INPUT
CH2

B

System under test

Figure 3-7

OSCILLATOR－CH1 internal connection

3-12

FRA5022

3.5 Basic Operations

3.5

Basic Operations

3.5.1

Simplified Sweep Measurement

This section describes simplified operations when first using FRA5022.
It describes as frequency sweep and a measurement of a system's frequency response.
Proceed according to the following procedure.
1) Initialization: executed to simplify understanding of the following steps.
2) Setting the measurement conditions
3) Sweep measurement4) Measured values reading■ Initialization
・Press the MENU/EXIT key to display the menu screen.
△▽

・Use the Left/Right cursor keys
・Use the Up/Down cursor keys

to move to the system menu <SYSTEM> screen.

to select INITIALIZE all.

・Press the key 1 to initialize.
■ Setting the measurement conditions△▽

・Use the Left/Right cursor keys

to move to the sweep setup <SWEEP> screen.

・Set the values as below for example.
AC Amplitude

OSC ac amplitude

1.00Vrms

Set the value with the ENTR key

DC biasOSC dc bias

0.00V

Set the value with the ENTR key

Integration time

MEAS integ. time

0.10s

Set the value with the ENTR key

Integration cycle

MEAS integ. cycle

1c

Set the value with the ENTR key

Frequency max

SWEEP freq. max

100.00kHz Set the value with the k key

Frequency min

SWEEP freq. min

10.000Hz

Automatic scaling

DISP scale

Auto

Set the value with the ENTR key

After measurement, the vertical scale isautomatically selected.
For the possible settings range, check the comments in the lower side of the screen.
・Press the ON AC/DC OSCILLATOR key to turn the oscillator's output on.
The oscillator's output voltage will not change by only modifying the setup value. It ischanged by this procedure.
■ Sweep measurement
・Press the Measurement DOWN or UP key.
The screen changes to Sweep measurement screen and the measured gain and phaseare displayed as a graph (Bode diagram).

・Use the Left/Right cursor keys△▽

■ Measured values reading
to move the graph's frequency data cursor(vertical line), the measured value at the position of the cursor is displayed as anumerical value.

3-13

FRA5022

3.5 Basic Operations

3.5.2 Setup Screen, Measurement Screen Switchover
It is possible to switch from the measurement condition setup screen to the measured data
display measurement screen mostly by using the MENU/EXIT key. When themeasurement screen is displayed, pressing the MENU/EXIT key will display the menu
screen. Pressing the MENU/EXIT key once again will return to the measurement screen.
It is possible to return to the measurement screen by pressing either of the DOWN, HOLD,
UP, STOP, SPOT key.
When only a partial change of the conditions is desired, press the SETUP key and aconvenient setup screen including frequently used parameters for sweep measurements,
spot measurements, oscillator settings is displayed.

Measurement screen

OSC
SETUP

MEAS SETUP

EXIT →

MEAS SETUP→EXIT

OSC SETUP

Spot setup screen(measurement screen)

EXIT

Systemmenu screen

CURSOR▽

Spot menu screen△

Sweep menu screen

EXIT →

EXIT
→

OSC
SETUP

MENU

MENU

EXIT →

Spot
measurement screen

Oscillator setup screen

Sweep setup screen

MENU

SPOT

MENU

MEAS SETUP
EXIT →

Sweep
measurement screen

OSC SETUP

POWER ON
(accept the previous status)

UP, DOWN,
HOLD (,STOP)

Setup screen
Figure 3-8

Setup screen, measurement screen switchover (description)

3-14

FRA5022

3.5 Basic Operations

3.5.3 Menu Screen Basic Operation
 Menu screen display:

MENU/EXIT key

 Menu screen switchover:

Left/Right cursor keys (CURSOR△▽

Basic operation of the settings is as follows.

 Setting items selection:

Up/Down cursor keys (CURSOR)

 Value setup or operation instruction:

Register key

 Return to the measurement screen:

MENU/EXIT key)■ Menu screen switchover
The menu screen has three sub-menus that are switchable with the Left/Right cursor
key.
 System menu screen:

Settings related to remote control and FRA5022 ingeneral Sweep menu screen:

Settings related to sweep measurements

 Spot menu screen:

Settings related to spot measurements■ Setting items selection
Lines for each setup item can be selected by using the Up/Down cursor key.
When the setup items are too numerous to be displayed on one page it is possible toscroll the screen.
The lower part of the screen displays settable ranges and other comments.

■ Setting values
To set values such as frequency, use the numerical keys (0 to 9), the decimal key (.),
the inverted key (+/-), and the ENTR key to validate a setting. To enter m (10 -3) or k(103) use the m or k key in place of the ENTR key.
Before using ENTR to confirm a value, it is possible to use the BS/LOCAL key(backspace key) to delete the previously entered character. If the cursor keys are used
to move to a different item before the value is validated, it will be deleted.
To set AC amplitude, use the +/- pk/rms keys to switch the unit between Vpeak and
Vrms.

■ Parameter selection
For setup items that give a choice of parameters, it is possible to select the parameterwith the numerical keys. The correspondence between the numbers and theparameters are indicated in the lower section of the screen. Use the indications toproceed with the selection. It is not necessary to use the ENTR key.

■ Operation instructions
It is possible to use a numerical key corresponding to an instruction to execute
operation instructions only once, such as writing measurement data to data memory B.
It is not necessary to use the ENTR key. The operation is executed by simply pressing
the numerical key.

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FRA5022

3.5 Basic Operations■ Title entry
It is possible to enter alphabetical or numerical characters in the TITLE setup it em.
Entry can be done with the numerical key, the decimal (comma) and the register key.
Pressing a key a number of times will display a list of corresponding alphabetical orother characters below that key. For example, pressing the key 7 a number of times
will produce the following display.
To enter multiple characters, use the right cursor key▽

7→S→T→U→7…
to move the input location to

the right.
Confirm the entry by pressing the ENTR key.

■ Error messages handling
When the set values exceed the possible range, an error message is displayed.
The message can be dismissed by pressing the ENTR/RESET ERROR key. Dismiss themessage after checking its contents.

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FRA5022

3.5 Basic Operations

3.5.4 System Menu Screen
Items that are common to FRA5022 as a whole, or remote control items can be setup in theThree sub-menus: switchable with the Left/Right cursor keys

Setup items:
select with the
Up/Down cursor
keys.

Selected items'
settings orsetting range isdisplayed.

△▽

System menu screen.

.

MENU <SYSTEM> <SWEEP> <SPOT>STORE data A-->B
CALIBRATIONSCAN limit
SCAN man/auto
OSC slow on/off
INTERFACE connect
INTERFACE address
Serial Number

▲

3
Auto
Quick only
GPIB
29087651

Set values▼

OSC slow on/off= Quick only0）Quick only 1)Slow enable
Figure 3-9■ Measurement data recording

Scrollbar:
when a setup item
cannot be fully
displayed on thescreen the position of
the item summary isthus displayed.

System menu screen

STORE data A-->B

Value range:

1) Execute

Description:

By pressing the 1 key, the most recent measurement data (datamemory A contents) is copied to data memory B.

■ Self calibration

CALIBRATION

Value range:

1) Execute, 9) Extend

Description:

By pressing the 1 key, a self calibration is executed.
Self calibration takes about 50 seconds. It is not possible to stop it
while it is being executed.
9) Extend is reserved for the function extensions. Currently is thesame function as 1) Execute.

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FRA5022

3.5 Basic Operations■ Scan upper limit

SCAN limit

Value range:0) Disable, 1 - 9

Description:0) Disable: Locks scan.
1 - 9: Scan range is from setting memory 0 to the number set.

Initial values: 0) Disable■ Automatic scan

SCAN auto/man

Value range:0) Auto1) Manual

Description:

Auto: Automatic scan
When in scan measurement, the measurements are made as spot by
automatically switching the setting memory in order, the result
evaluation for the multiple settings is made in batch.
Manual: Manual scan
When in scan measurement, the measurement is made once byswitching to the next setting memory and the result evaluation is
made.

Initial values: 0) Auto

Scan measurement details

 “4.4 Scan Measurement”■ Oscillator output terminal change rate limit

OSC slow on/off

Value range:0)Quick only

1) Slow enable

Description:

It is possible to limit the output terminal change rate not to damage
the system under test by the abrupt change of the output.
0) Quick only: Instruction for turning the output on/off immediately
turns the output on/off.
The SLOW lamp is off and the QUICK key is disabled.
1) Slow enable: When the change rate limit setting is enabled, theSLOW lamp illuminates and the AC amplitude and DC
bias of the output changes linearly within a duration of
up to 10 seconds.
Pressing the QUICK key is allowed only once, tolinearly change the output.

Initial values: 0) Quick only

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FRA5022

3.5 Basic Operations■ Remote control interface selection

INTERFACE connect

Value range:0) GPIB

1) USB

Description:

Sets to either GPIB or USB. It is not possible to use both at the sametime.

Initial values: 0) GPIB

The initialization will not modify the setting, it will stay
as originally.

■ GPIB address

INTERFACE address

Value range:

0 - 30Description:

Sets the FRA5022 address for the GPIB system.
Set a value that differs from the values assigned to other devices
connected to the same bus.

Initial values: 2

The initialization will not modify the GPIB address, it will stay
as originally.

■ Serial Number
Description:

Serial Number
Serial number for the FRA5022 model. This value cannot be modified.
The value is necessary to identify the device when a connection to
FRA5022 is made through USB.

■ Initialize all

INITIALIZE all

Value range:

1) Execute

Description:

By pressing the 1 key, all the settings related to measurement are
initialized.
Contents of data memory A and B are not erased.
Details…

“Table 3-1 Setting items and initial values”

The following setup item of the system menu screen is independent from the 10 setting
memories and kept by the backup battery even when the power is off it will not be erased.
・Scan upper limit:

SCAN limit

・Automatic scan:

SCAN man/auto

・Oscillator output terminal change rate limit:

OSC slow on/off

・Remote control interface selection:

INTERFACE connect

・GPIB address:

INTERFACE address

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FRA5022

3.5 Basic Operations

3.5.5 Sweep Menu Screen

Three sub-menus: select with the Left/Right cursor keys△▽

The Sweep Menu Screen allows you to set the items for sweep measurement.

.

MENU <SYSTEM> <SWEEP> <SPOT>

Setup items:
select with the
Up/Down cursor
keys.

CH2/CH1
0.10s
1
0.00s
Log
100.00kHz
10.000Hz100

MEAS mode
MEAS integ. time
MEAS integ. cycle
MEAS delay timeSWEEP freq. axis
SWEEP freq. max
SWEEP freq. min
SWEEP points

Displays theoptions available
for the selected
item.

▲

Setting value▼

SWEEP freq. axis
= Log
0）Log
1)Lin
Figure 3-10

■ Setting memory selection

Scrollbar:
Indicates theapproximate positionof the current item in
the window when theentire menu cannot
be fully displayed.

Sweep menu screen

SETTING memory

Value range:

0-9

Description:

FRA5022 can use 10 individual settings memories.
The settings in the sweep screen are not limited to changing thesettings of the actual measurements but can also be registered in thespecified setting memories.

Initial values: 0■ Setting memory title
Value range:

TITLE

Maximum 18 characters using the following:・Alphabet (upper case A to Z)
・Numerical characters (0 - 9) and decimal point
・Other characters_ (white space), -, +, (, ), /(the underscore above denotes white space.)
Description:

Title for each setting memory.
With each press of the numeric key, the number is switched to
Pressing the right cursor key▽

alphabets and symbols.
moves the input position to the right.

Initial values: Empty string

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FRA5022

3.5 Basic Operations■ Oscillator frequency
Value range:

OSC frequency

0.10mHz - 100.00kHz

Resolution: 5 digits, or 0.01mHz whicheveris the largest.

Description:

The oscillator frequency for spot measurements.
Upon establishing the frequency of spot measurement, the actual
output frequency changes immediately.
Even when the frequency is changed, the signal phase remains
consistent and the waveform is changed smoothly.

Initial values: 1kHz

■ Oscillator AC amplitude
Value range:

OSC ac amplitude

0.000 - 7.07Vrms

Resolution: 0.001 (＜1), 0.01 (≧1) Vrms

0.000 - 10.00Vpeak Resolution: 0.001 (＜1), 0.01 (≧1) Vpeak
Description:

The output AC amplitude of the oscillator. When the output terminalis open this is the value that is used.
Changes in this value will not be reflected until the Output ON
AC/DC key is pressed.

Initial values: 10mVrms■ Oscillator DC bias

OSC dc bias

Value range:-10.00V - +10.00V

Resolution: 0.01V

Description:

The output DC bias of the oscillator. When the output terminal isopen this is the value that is used.
Changes in this value will not be reflected until the Output ON
AC/DC key is pressed.

Initial values: 0V

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FRA5022

3.5 Basic Operations■ Measurement mode

MEAS mode

Value range:0) CH2/CH1

1) CH2/OSC

Description:

Selects the reference signal for frequency response (transfer function)measures.
With CH2/CH1, the change up to CH2 is measured with reference to
CH1 input.
When CH2/OSC, the change up to CH2 is measured with reference tothe oscillator output. CH1 input terminal is then separated from theinternal and is open.

Initial values: 0) CH2/CH1■ Integration time

MEAS integ. time

Value range:

0.01 - 999.99 s

Description:

Specifies the integration time for the signal. The longer, the lesssusceptible to noise is the measurement.
The actual integration time is the longer of the shortest signal cycle
duration equal or greater than this value or the integration cycle(s)separetely specified.

Initial values: 0.02s■ Integration cycle

MEAS integ. cycle

Value range:

1 - 999 cycles

Description:

Specifies the integration time for the signal as the signal cycle count.

Initial values: 1 cycle■ Delay time

MEAS delay time

Value range:

0.00 - 999.99 s

Description:

Delay time from the point when the frequency, amplitude, or DC bias
is modified to the point when the actual measurement using themodified values starts. When the system under test exhibits somelatency due to high order filters or the like, accurate measurement
cannot be obtained unless sufficient time is allowed before theresponse is stabilized.

Initial values: 0.00 s

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FRA5022

3.5 Basic Operations■ Frequency scale

SWEEP freq. axis

Value range:0) Log1) LinDescription:

When in frequency sweep it selects either the geometrical interval(Log) or the arithmetic interval (Lin). This will modify the frequency
axis display of the graph.

Initial values: 0) Log■ Frequency max

SWEEP freq. max

Value range:

0.11m - 100.00kHz

Description:

Maximum frequency when in frequency sweep.

Initial values: 100kHz■ Frequency min

SWEEP freq. min

Value range:

0.10m - 99.999kHz

Description:

Minimum frequency when in frequency sweep.

Initial values: 1Hz■ Frequency pointSWEEP points

Value range:

3 - 1000 points

Description:

The number of frequency (measurement) points to be used when in
frequency sweep.
Measurement is performed between the maximum and minimum
frequencies at the specified number of frequency points spaced equallyapart on the linear axis (Lin) or logarithmic axis (Log).
The measurement data can be stored in the memory for up to 1000
frequency points. Pressing UP/DOWN keys many times during sweep
measurement may use up the measurement data memory space andaborts the sweep measurement before it reaches the maximum or
minimum frequency.

Initial values: 100■ Automatic sweep

SWEEP man/auto

Value range:0) Auto1) Manual

Description:

Auto: Measures at all the specified frequency points by changing thefrequency automatically.
Manual: Measures at one point with each press of one of the
DOWN/HOLD/UP keys.

Initial values: 0) Auto

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FRA5022

3.5 Basic Operations■ Data memory display

DISP data memory

Value range:0) A 1) B

2) A&B

3) A/B

Description:

A: Displays the contents of data memory A (most recent measureddata).
B: Displays the contents of data memory B.
A&B: Displays the contents of data memory A and B.
A/B: Displays the vector ratio (magnitude ratio, phase difference).

Initial values: 0) A

■ Graph axis (measured value display format)
1) G, P-F

DISP coordinates

Value range:0) GdB, P-F

2) a-bDescription:

GdB, P-F: Displays the values Gain dB, Phase deg, Frequency Hz.
G,P-F: Displays the values Gain (linear), Phase deg, Frequency Hz.
a-b: Rectangular coordinate display.
Displays the gain as a complex number expression a+jb, where a is
the real part and b is the imaginary part.
Graphs are always displayed as a Bode diagram (GdB, P-F),
regardless of the above settings.

Initial values: 0) GdB, P-F

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FRA5022

3.5 Basic Operations■ Graph Y-axis automatic scaling

DISP scale

Value range:0) Auto1) Manual

Description:

Auto: After measurement, the vertical scale is automatically adjusted.
Manual: The display range for the Y-axis can be set manually.

Initial values: 0) Auto

■ Graph gain maximum value

DISP gain max

Value range:-179.9 to 180.0dB

Description:

Graph (Bode diagram) maximum value for the gain axis.

Initial values: 60.0dB■ Graph gain minimum value

DISP gain min

Value range:-180.0 to 179.9dB

Description:

Graph (Bode diagram) minimum value for the gain axis.

Initial values: -60.0dB■ Graph phase maximum value

DISP phase max

Value range:-359.9 to 360.0deg

Description:

Graph (Bode diagram) maximum value for the phase axis.

Initial values: 180.0deg■ Graph phase minimum value

DISP phase min

Value range:-360.0 to 359.9deg

Description:

Graph (Bode diagram) minimum value for the phase axis.

Initial values: -180.0deg
The phase value is displayed within a range from the set graph phase minimum value tothat value plus 359.99 deg.

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FRA5022

3.5 Basic Operations■ CH1 Excessive input detection level

OVER level ch1

Value range:

0.01 to 19.99Vrms

Description:

The excessive input detection level for CH1. Determined with the rms
value of the fundamental wave.

Initial values: 19.99Vrms■ CH2 Excessive input detection level

OVER level ch2

Value range:

0.01 to 19.99Vrms

Description:

The excessive input detection level for CH2. Determined with the rms
value of the fundamental wave.

Initial values: 19.99Vrms■ Operation with excessive input
1) Beep

OVER response

Value range:0) Lamp2) Hold3) OffDescription:

Set the response for detection of excessive input.
Lamp: Turns on the OVER lamp for the channel with excessive input.
Beep: An alarm sound is generated upon the illumination of the lamp.
Hold : Besides for the 2 above items. a sweep would also be aborted
and set to HOLD.
During a scan measurement, the scan would be stopped andwould remain at the last setting.
Off: Besides for the 3 above items, the AC and DC output of theoscillator would be turned off.

Initial values: 0) Lamp

■ Setting memory protection

SETTING lock

Value range:0) Free

1) Lock

Description:

To prevent mistaken settings it is possible to lock the settings.
Free: It is always possible to change the settings.
Lock: Setting is locked.

Initial values: 0) Free
■ Setting memory individual initialization

SETTING clear

Item name:1) Initialize

Description:

Initializes only the setting memory currently in use.
Other setting memories will not be initialized.

■ Setting memory contents copy

SETTING copy to

Value range:

0 to 9 : Setting memory number

Description:

Copies the contents of the currently displayed setting memory toanother setting memory.
If the displayed memory is locked, the copy target will become free.
If the target memory is locked the copy is not possible.

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FRA5022

3.5 Basic Operations

3.5.6 Spot Menu Screen

Three sub-menus: select with the Left/Right cursor keys

Setup items:
select with the
Up/Down cursor
keys.

Displays theoptions available
for the selected
item.

.

MENU <SYSTEM> <SWEEP> <SPOT>REPEAT on/off
MEAS mode
MEAS integ. time
MEAS integ. cycle
MEAS delay time
DISP data memory
DISP coordinates
DISP phase minOn
CH2/CH1
0.50s
2c
0.00s
A
GdB,P-F-180deg

MEAS delay time
= 0.050.00 to 999.99 s
Figure 3-11□△▽

The Spot Menu Screen allows you to set items for spot measurement.

▲

Setting value

Scrollbar:
Indicates theapproximate position▼of the current item in
the window when theentire menu cannot
be fully displayed.

Spot menu screen

The items marked with a solid white square mark are shared with the sweep
measurement screen. For the details, refer to the descriptions of the sweep
measurement screen.

□ Setting memory selection:

SETTING memory□ Setting memory title:

TITLE□ Oscillator frequency:

OSC frequency□ Oscillator AC amplitude:

OSC ac amplitude□ Oscillator DC bias:

OSC dc bias

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FRA5022

3.5 Basic Operations■ Repeat measurement

REPEAT on/off

Value range:0) On1) OffDescription:

Specifies whether the measurement is automatically in sequences or if
it is executed once only.
On: Automatic repeat measurement
Off: Manual single measurement. With each press of the SPOT key,
one measurement is performed.

Initial values: 0) On□ Measurement mode:

MEAS mode□ Integration time:

MEAS integ. time

□ Integration cycle:

MEAS integ. cycle□ Delay time:

MEAS delay time
It is possible to set a delay time even for a single spot measurement.

□ Data memory display:

DISP data memory

Under spot measurement, even if A&B are set only the latest
measured value A is displayed.
□ Graph axis (measured values display format):

DISP coordinates

Under spot measurement, the value display is fixed to “Frequency,
Gain dB, Phase”.
Even with “G, P-F” or “a, b” selected, Gain (linear) or a, b is not
displayed. It is possible to read the values from the remote control
interface.
■ Phase minimum value

DISP spot phase min

Value range:-360.0 to 0.0 deg

Description:

Sets the phase minimum value. The phase range is “minimum value”
to “minimum value+359.99 deg”.

□ CH1 Excessive input detection level:

OVER level ch1□ CH2 Excessive input detection level:

OVER level ch2□ Operation with excessive input:

OVER response

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FRA5022

3.5 Basic Operations■ Result evaluation Gain maximum value

SPOT GO/NG G max

Value range:-199.99 to 199.99

Description:

The result evaluation gain maximum value.

Initial values: 0

When maximum value ≦ minimum value, no evaluation is madeand the result is positive.

■ Result evaluation Gain minimum value

SPOT GO/NG G min

Value range:-199.99 to 199.99

Description:

The result evaluation gain minimum value.

Initial values: 0

When maximum value ≦ minimum value, no evaluation is madeand the result is positive.

■ Result evaluation Phase maximum value

SPOT GO/NG P max

Value range:-360.00 to 360.00

Description:

The result evaluation phase maximum value.

Initial values: 0

When maximum value ≦ minimum value, no evaluation is madeand the result is positive.

■ Result evaluation Phase minimum value

SPOT GO/NG P min

Value range:-360.00 to 360.00

Description:

The result evaluation phase minimum value.

Initial values: 0

When maximum value ≦ minimum value, no evaluation is madeand the result is positive.

Result evaluation details

 “4.3 Result Evaluation”□ Setting memory protection:

SETTING lock□ Setting memory individual initialization:

SETTING clear□ Setting memory contents copy:

SETTING copy to

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FRA5022

3.5 Basic Operations

3.5.7 Sweep Measurement
Sweep measurement measures gain and phase by sweeping the frequency.
The settings for measurements or display are made under the Sweep menu screen.
 “3.5.5 Sweep Menu Screen” The measurements results are displayed on the sweep measurement screen as Bodediagrams.
Sweep measurements are made by operating the four keys located on the
MEASUREMENT SWEEP part of the front panel. The operation related to each key isdescribed below. The UP key is disabled while the sweep is in the UP mode.
Sweep measurement control keys
MEASUREMENT
SWEEP
DOWN

HOLD

Figure 3-12

SPOT
UP

SETUP

STOP

EXIT

Sweep measurement control keys

DOWN

Performs a sweep from the maximum frequency to the minimum
freauency when the operation is in the STOP mode.
When HOLD or UP is active, a sweep is executed from the frequency fat that point to the minimum frequency.
If f ≦ minimum frequency or f ＞ maximum frequency the sweep is
executed from the maximum frequency.
A manual sweep performs a measurement only once toward the next
frequency point.

UP

Performs a sweep from the minimum frequency to the maximum
freauency when the operation is in the STOP mode.
When HOLD or DOWN is active, a sweep is executed from thefrequency f at that point to the maximum frequency. If f ≧ maximum
frequency or f ＜ minimum frequency the sweep is executed from theminimum frequency.
A manual sweep performs a measurement only once toward the next
frequency point.

HOLD

Stops frequency change. Fixes the frequency to the current point andperforms a measurement.
Even if f ＜ minimum frequency or f ＞ maximum frequency, ameasurement is performed at f.
In an automatic sweep, the measurement is repeated for thatfrequency.
In a manual sweep, the measurement is made only once at thatfrequency.

STOP

Stops sweep measurement. Retains the last frequency used.
When the total number of measured data has reached the maximum
data memory volume of 1000 point it becomes impossible to perform
further measurements and the sweep is stopped.

■ Operation upon pressing of MENU key or SETUP key
Preesing the MENU key or SETUP key displays the setup screen. While the setup
screen is displayed, sweep measurement is paused and no measurement is performed.
After the settings are changed, the previous measurement data will be displayed until
a new measurment is started.
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FRA5022

3.5 Basic Operations

3.5.8 Sweep Measurement Screen
The Sweep measurement screen displays the measured gain (dB) and phase (deg) as a
Bode diagram.
The settings for measurements or display are made under the Sweep menu screen.
 “3.5.5 Sweep Menu Screen” 
Blinks when ON
Frequency axis
magnification
rationUpper/lower end,
Gain max/min
Gain (dB)

Title
Setting memory
numberMAG x 1

Oscillator output
ON OFF status

9: TITLE

Measurement
mode
Data memory
display+10.0

Gain graph

GAIN-73.05dB

Frequency axis Log/Lin

G
2.2259E-04

Left/right end,

-120.0Frequency

Cursor

AC/DC CH2/CH1 A/B

4.7285kHz 123.45m Freq(Hz) LOG <STOP> 100.00k Frequency max/min+180.0Phase (deg)Upper/lower end,
Phase max/min

PHASE-0.05deg

Sweep measurement
statusPhase graph-180.0

OSC:123.45mHz

7.07Vrms +0.00Vdc

Frequency

DC biasAC amplitude

1c/0.10s

Integration cycle

Integration time

Current oscillator output(when output is open)
During measurement: latest measurement value the cursor (vertical axis) is not displayed.
When STOP: value for the cursor position
When the graph axis (measured values display format) settings are “G, P-F” or “a-b”, thefollowing values are displayed according to the settings.
Below Gain (dB): linear gain G or real value a of complex gain a + jb
Below Phase: imaginary value b of complex gain
Figure 3-13

Sweep measurement screen△▽■ Measured values reading
The sweep measurement screen allows you, during the STOP mode, to check the gain
and phase at each frequency by moving the frequency cursor (vertical line on thegraph) using the Left/Right cursor keys
. The cursor moving speed (the number ofpoints to move at one time) can be adjusted using the m key and k key in the range of×1/×2/×4/×10/×100. Pressing the m key increases the spead. Upon specifying themoving speed, the speed is displayed on the screen for a short duration.
■ Frequency axis magnification
When many frequency points are clustered and cannot be resolved, using the UP
cursor key
allows you to magnify the frequency axis near the cursor by 1×/2×/4×/8×/16×. Use the Up/Down cursor keys
(MAG) to magnify/reduce the display asneeded.

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FRA5022

3.5 Basic Operations

3.5.9 Spot Measurement
In spot measurement, the measurement is executed at one set frequency point and thenumerical values of the measured results are then displayed.
Spot measurements are made by operating the SPOT key located on the MEASUREMENT
part of the front panel.
SPOT key
MEASUREMENT
SWEEP
DOWN

HOLD

Figure 3-14

SPOT
UP

SETUP

STOP

EXIT

Spot measurement control key

The settings for measurements or display are made under the Spot menu screen.

 “3.5.6 Spot Menu Screen”
The main setup items are as bellow. For the possible settings range, check the commentsin the lower side of the screen.
・AC Amplitude:

OSC ac amplitude

・DC bias:

OSC dc bias

・Integration time:

MEAS integ. time・Integration cycle:

MEAS integ. cycle

・Phase minimum value:

DISP spot phase min

The phase value is displayed within a range from the set phase minimum
value to that value plus 359.99 deg.
It is independent from the sweep measurement graph phase minimum value.
・Repeat measurement:

REPEAT on/off

Allows to take sequential measures if set to ON, or to take measures one by
one by pressing the SPOT key if set to OFF. It is independent from the sweep
measurement automatic sweep (sequential measures when HOLD).
Sequential measures can be stopped by pressing the STOP key. To resume,press the SPOT key. During the measurement, the Repeat status at the top
left of the spot measure screen blinks.

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FRA5022

3.5 Basic Operations

3.5.10 Spot Measurement Screen
The Spot measurement screen displays the measured results as numerical values.
The settings for measurements or display are made under the Spot menu screen.

 “3.5.6 Spot Menu Screen”
Latest measurement value
The frequency, Gain dB and phase are displayed in numerical values.
The display format is fixed.
Measurement status
Repeat/Single/Scan
Blinks during themeasurement

Setting memory
numberRepeat2:TITLE

Frequency
Gain
Phase
Measurement
mode
Data memory
display
Delay time

Freq
Gain
Phase

Title

1.0000kHz-77.15dB-123.45deg

CH2/OSC
CH2
0.100mVrms
A/B (OSC) CH1
723.5mVrms
D: 0.10s
I:10c/ 1.00s
OSC:1.0000kHz
7.07Vrms+0.00Vdc
Frequency

AC amplitude

Amplitude RMS value
for each channel

Integration cycle /Integration time

DC biasCurrent oscillator output(when output is open)
Figure 3-15

Spot measurement screen

In the spot measurement mode, you can perform a GO/NG evaluation for gain (dB) andphase (deg).
 “4.3 Result Evaluation”■ About amplitude display
It is possible to monitor the signal's amplitude from FRA5022’s spot measurement
screen.
The amplitude measurement value is the RMS value of the measured frequency’s
fundamental wave (sine wave). In FRA, the noise components that differ from themeasured frequency are not measured. It is not possible to display RMS values
including noise or distortion like with a general voltmeter or peak values observed withan oscilloscope.
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FRA5022

3.5 Basic Operations

3.5.11 Measured Values of Excessive Input
When the input signal to the analyzer CH1 or CH2 exceeds the measurement range(±10V), the gain obtained will be displayed as the maximum value that can be displayedon FRA5022. Below are the actual values displayed:
・ Gain (dB):+199.99dB・ Phase:0.00deg

・ Gain (linear), a, b:+9.9999E+9

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FRA5022

4． ADVANCED OPERATIONS

4.1

Setup Screen ················································ 4-2

4.1.1

Setup Screen Display ································ 4-2

4.1.2

Sweep Setup Screen ································· 4-2

4.1.3

Spot Setup Screen ···································· 4-3

4.1.4

Oscillator Setup Screen ····························· 4-3

4.2

Settings Memory ············································ 4-4

4.2.1

Setting Memory Description ························ 4-4

4.2.2

Setting Memory Setup Items ······················· 4-4

4.2.3

Setting Memory Operation ·························· 4-5

4.3

Result Evaluation ··········································· 4-6

4.3.1

Evaluation Range Setting ··························· 4-6

4.3.2

Evaluation Display ···································· 4-6

4.4

Scan Measurement ········································ 4-7

4.4.1

Scan Related Setup Items ·························· 4-7

4.4.2

Scan Measurements Operation and Function·· 4-7

4.5

Servo System Measurement ···························· 4-9

4.6

Data Memory ·············································· 4-12

4.7

Equalizer ···················································· 4-13

4.8

Oscillator Output Terminal Change Rate Limit(SLOW) ····················································· 4-14

4-1

FRA5022

4.1 Setup Screen

4.1

Setup Screen

4.1.1 Setup Screen Display
When the Sweep measurement screen or the Spot measurement screen is displayed, it ispossible to display a summary setup screen of the most used setup items (Quick setup
screen) in the lower part of the monitor by pressing the MEASUREMENT or the
OSCILLATOR SETUP/EXIT key. By pressing it one more time the screen reverts to themeasurement screen.
MEASUREMENT
SWEEP
DOWN

HOLD

SPOT
UP

SETUP

STOP

EXIT

Displays either the sweep
setup screen or the spot
setup screen depending on
the displayed measurement
screen.

OSCILLATOR
SLOW

QUICK

ON

OFF

OFF

AC/DC

AC/DC

AC

SETUP
EXIT

Figure 4-1

Displays the oscillator
setup screen.

Setup key

4.1.2 Sweep Setup Screen
Pressing the MEASUREMENT SETUP/EXIT key during a sweep measurement displays asummary setup screen of the most used sweep measurement setup items.

MEAS integ. cycle
Setup value/
Input value
Setting range

SWEEP freq. max
SWEEP freq. min= 1.2345kHz
0.11m to 100.00k
Figure 4-2

Setup item:
switchover with the
Up/Down cursor key.

Sweep setup screen (ex.)

The setup items for the sweep setup screen are a sweep menu screen subset, as shown
below.
■ Integration time:

MEAS integ. time

■ Integration cycle:

MEAS integ. cycle■ Maximum frequency:

SWEEP freq. max■ Minimum frequency:

SWEEP freq. min■ Graph Y-axis automatic scaling:

DISP scale■ Graph gain maximum value:

DISP gain max■ Graph gain minimum value:

DISP gain min■ Graph phase maximum value:

DISP phase max■ Graph phase minimum value:

DISP phase min

4-2

FRA5022

4.1 Setup Screen

4.1.3 Spot Setup Screen
Pressing the MEASUREMENT SETUP/EXIT key during a spot measurement displays asummary setup screen of the most used spot measurement setup items.

REPEAT on/off
Setup value/
Input value
Setting range

MEAS integ. time
MEAS integ. cycle= 0.10s
0.01 to 999.99
Figure 4-3

Setup item:
switchover with the
Up/Down cursor
key.

Spot setup screen (ex.)

The setup items for the spot setup screen are a spot menu screen subset, as shown below.
■ Integration time:

MEAS integ. time

■ Integration cycle:

MEAS integ. cycle■ Repeat measurement:

REPEAT on/off

4.1.4 Oscillator Setup Screen
Pressing the OSCILLATOR SETUP/EXIT key during a sweep or a spot measurement
displays a summary setup screen of the most used oscillator setup items.

OSC dc bias
Setup item:
switchover with the
Up/Down cursor
key.

OSC frequency

Setup value/
Input value

OSC ac amplitude

Setting range= 1.2345kHz
0.10m to 100.00k
Figure 4-4

Oscillator setup screen (ex.)

The setup items for the oscillator setup screen are a sweep menu and spot menu screen
subset, as shown below.
■ Oscillator frequency:

OSC frequency■ Oscillator AC amplitude:

OSC ac amplitude■ Oscillator DC bias:

OSC dc bias

4-3

FRA5022

4.2 Settings Memory

4.2

Settings Memory

4.2.1 Setting Memory Description
FRA5022 can keep 10 settings groups in its setting memory. The memory contents isbacked up by the battery and is not erased when it has been turned off.
During a measurement, it is possible to press a numerical key (0 to 9) to select thecorresponding setting.

4.2.2 Setting Memory Setup Items

TITLE
OSC frequency
OSC ac amplitude
OSC dc bias
MEAS mode
MEAS integ. time
MEAS integ. cycle
MEAS delay timeSWEEP freq. axis
SWEEP freq. max
SWEEP freq. min
SWEEP points
SWEEP man/auto
REPEAT on/off
DISP data memory
DISP coordinates

✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓

DISP scale
DISP gain max
DISP gain min
DISP phase max
DISP phase min
DISP spot phase min
OVER level ch1
OVER level ch2
OVER response
SPOT GO/NG G max
SPOT GO/NG G min
SPOT GO/NG P max
SPOT GO/NG P min

✓
✓
✓
✓
✓

Setting items detailed contents

✓
✓

✓
✓
✓
✓
✓
✓
✓
✓

✓
✓
✓
✓
✓

✓
✓

✓

✓
✓

✓

✓

✓
✓
✓

Oscillator
setup

Title
Frequency
AC Amplitude
DC biasMeasurement mode
Integration time
Integration cycle
Delay time
Frequency axis
Maximum frequency
Minimum frequency
Frequency point
Automatic sweep
Repeat measurement
Data memory display
Graph axis measurement values display
formatGraph Y-axis automatic scaling
Graph gain maximum value
Graph gain minimum value
Graph phase maximum value
Graph phase minimum value
Spot phase minimum value
CH1 Excessive input detection voltage
CH2 Excessive input detection voltage
Operation with excessive input
Result evaluation Gain maximum value
Result evaluation Gain minimum value
Result evaluation Phase maximum value
Result evaluation Phase minimum value

Spot setup

Notation on screen

Spot menu

Setting items

Sweep setup

Sweep menu

The setup items for each setting memory are shown in the table below. The items
displayed per screen are limited.
Table 4-1 Setup items and screen handling

✓

✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓

 “3.5.5 Sweep Menu Screen”, “3.5.6 Spot Menu Screen”
4-4

FRA5022

4.2 Settings Memory

4.2.3 Setting Memory Operation
During a measurement, it is possible to press a numerical key (0 to 9) to select thecorresponding setting.
Regarding AC amplitude and DC bias, switching of setting memory will only change thesetting values. The OUTPUT OSCILLATOR terminal output voltage will not change until
the ON AC/DC key is pressed.
The following operations are possible under the sweep menu or spot menu screen.
■ Selecting setting memory

SETTING memory

Selects a setting memory among the 10 possible.
On the menu screen or setup screen, it is possible to modify the selected setting
memory directly.
■ Setting each item
Except for some, the setup items displayed on the sweep menu screen or spot menu
screen are a subset of the setting memory. The setting items displayed in common withthe sweep menu and spot menu are the items shared in the setting memory. Changing
these items on one menu will also change the corresponding items on the other.
■ Protecting setting mermory

SETTING lock

It is possible to lock a setting memory currently displayed. When locked, all thesettings, except those that are free, will be unavailable.
It is not possible to simultaneously lock or free all of the 10 setting memories.
■ Initializing each setting memory

SETTING clear

Reverts the setting memory contents to the initial values. Does not affect other setting
memories.
Initial values “Table 3-1 Setting items and initial values”

It is possible to revert all the setup items including the setting memories to their initialvalues under the SYSTEM menu screen.
Initialize all “3.5.4 System Menu Screen”■ Copying setting memory

INITIALIZE all

SETTING copy to

Copies the contents of the currently displayed setting memory to another setting
memory.
If the displayed memory is locked, the copy destination will be unlocked (free).
If the copy destination is locked, copying results in an error.

4-5

FRA5022

4.3 Result Evaluation

4.3

Result Evaluation

In spot measurements, it is possible to automatically evaluate whether the g ain (dB) andphase measured values fit within a specified range and to display the results.
Result evaluation cannot be performed on gain (linear) or complex gain a+jb.

4.3.1

Evaluation Range Setting

To execute the result evaluation, set the following setup items under the spot menu
screen.
If minimum value ≧ maximum value the evaluation will not be executed.
■ Result evaluation Gain maximum value

SPOT GO/NG G max■ Result evaluation Gain minimum value

SPOT GO/NG G min

Value range: -199.99 to +199.99 dB, resolution 0.01 dB■ Result evaluation Phase maximum value

SPOT GO/NG P max■ Result evaluation Phase minimum value

SPOT GO/NG P min

Value range: -360.00 to +360.00 deg, resolution 0.01 deg

4.3.2

Evaluation Display

Evaluation results are displayed on the spot measurement screen.
▲: OVER is displayed when measured value ＞ maximum value.
▼: UNDER is displayed when measured value ＜ minimum value.
▲▼ neither of both is displayed when minimum value ≦ measured value ≦maximum value.
When the evaluation result is either OVER or UNDER, the item name is displayed in red.

RepeatGain (dB)evaluation result
Phase evaluation result

2:TITLE

Freq 1.0000kHz▲Gain-77.15dB▼Phase -123.45deg
CH2/OSC
CH2
0.100mVrms
A/B(OSC) CH1
723.5mVrms
D: 0.10s
I:10c/ 1.00s
OSC:1.0000kHz
7.07Vrms+0.00Vdc
Figure 4-5

Evaluation result display

4-6

FRA5022

4.4 Scan Measurement

4.4

Scan Measurement

It is possible to execute measurements in spot measurement by sequentially switching thesetting memories.

4.4.1 Scan Related Setup Items
Scan upper limit: SCAN limit→ System menu screen
Automatic scan: SCAN auto/man→ System menu screen
Result evaluation: SPOT GO/NG G max / min, P max / min → Spot menu screen

4.4.2 Scan Measurements Operation and Function
Pressing the m/SCAN key when in spot measurement allows the following measurements
depending on the scan measurement auto/manual settings.
■ For auto scans
It is possible to execute a batch result evaluation of a number of settings.
Pressing the m/SCAN key will switch the setting memory from setting memory No. 0
up to the scan maximum and execute a measurement once for each setting. The scan
will stop when reaching its maximum. If the result evaluation gives “measured value＜ minimum value” or “measured value ＞ maximum value”, the scan will stop at thatpoint. When the scan stops, the spot measurement repeat setting is ignored and themeasurement is stopped too.
By pressing the k/▼ key, it is possible to have the reverse effect of pressing them/SCAN key and have the measurement be executed from the scan maximum down to
the setting memory No. 0. It is possible to interrupt a scan measurement by pressing
the STOP key during the measurement.
■ For manual scans
By pressing the m/SCAN key, it is possible to switch to the succeeding setting memory
number and execute a measurement.
Setting memory above or equal to the scan maximum limit will switch to setting
memory No. 0.
By pressing the k/▼ key, it is possible do the opposite of pressing m/SCAN key: toswitch to the preceding setting memory number and execute a measurement. Setting
memory above the scan maximum limit or setting memory No. 0. will be switched tothe scan maximum setting memory.
k/▼ key
Setting memory n: Scan maximumk/▼ key(m/SCAN key)k/▼ key(m/SCAN key)
Setting memory 2k/▼ key(m/SCAN key)
Setting memory 1k/▼ key(m/SCAN key)
Setting memory 0
m/SCAN キー

Figure 4-6

Scan measurement

4-7

FRA5022

4.4 Scan Measurement
During a scan measurement, the previous measurement value is retained in the display,even after the setting memory is switched, until a new measurement value is obtained.
If the oscillator AC amplitude or DC bias is modified by a setting memory switch during ascan measurement, the values will immediately be reflected in the output voltage. It is notnecessary to use the ON AC/DC key. The output change rate limit (SLOW) is ineffectual.
The output will be immediately change as if per QUICK, even if SLOW is set.
Even after a scan measurement is over, the oscillator's output will remain ON and the AC
amplitude and DC bias will remain at their last values.

4-8

FRA5022

4.5 Servo System Measurement

4.5

Servo System Measurement

It is possible to obtain the servo system loop gain Aβby inserting FRA5022 oscillator into
a control loop and to measure the signal’s V1 and V2 before and after.

SUT : System Under Test
A
Signal injection resistor

ResistorβV1V2MEAS mode = CH2/CH1FRA
CH1 OSCCH2Aβ= V2 / V1
（OSC：OSCILLATOR）

Figure 4-7！

Connection for servo system measurement

WARNINGWhen the control loop is cut, a significant output is generated. The system under
test may be damaged and users can be put at risks. Use a signal injection
resistor to ensure that even if the connection to FRA5022’s oscillator is cut thecontrol loop is not opened. Firmly fix the resistor to prevent it from coming away.

When the input signal level (AC amplitude, etc.) is too strong, a significant
output is generated. The system under test may be damaged and users can be
put at risks. Use a small signal level first and slowly increase it to ensure you
work in safe conditions.



The connection between FRA5022 and the system under test may generate
unexpected behavior like an oscillation. There is a few 100pF floating
capacitance (capacitance vs the case) for the analyzer ’s input or the oscillator’s
output, together with the connection cable stray capacitance, it is possible to put
the system under test into an unstable state.

！ CAUTION
FRA5022’s maximum output current is ±100mA.
If the influence on the system under test response is not too important, set theresistor for the input signal inserted to the circuit to at least 50Ω. During themeasurement, this resistor value in parallel with the oscillator ’s output resistanceof 50Ω will be inserted into the control loop. If a lower resistor value is inserted,
modify AC amplitude and DC bias so that the current does not exceed the
maximum output current. A combined peak value not exceeding ±5V is safe.

4-9

FRA5022

4.5 Servo System Measurement

When enforcing operation safety measures, it is possible that for small input signal level,
noise causes dispersion in the measurement. In such cases, it is possible to maintainmeasurement reliability and operation safety by splitting the frequency range and setting
the appropriate signal level for each range.
■ 5055 Signal injector/probe use
When connecting directly the system under test to FRA5022, the influence of themeasurement cable capacitance or of FRA5022’s input impedance can put the system
under test into an unstable state and its response can been seen as changing. In suchcases, it is possible to reduce the influence on the system under test by using aseparately sold 5055 Signal Injector/Probe. Details about 5055 conditions of use ormeasurement are found in the 5055 Instruction Manual.
5055 can get its power supply from FRA5022 rear panel’s AUX connector. 5055 comeswith 2 different FRA connection cables. Use the one that connects to the AUX
connector.
■ About handling of a floating system under test
When the system under test is not grounded, the signal ground electrical potential
varies. For it, the FRA5022’s insulation voltage exceeds, common mode noise is madeand may influence the measurement. In case of doubt, use an oscilloscope to check thesignal ground electrical potential.
High frequency fluctuation can be reduced by grounding the system under test througha bypass capacitor.

！

WARNING

FRA5022’s signal dialectic voltage is 42Vpk.
When there are risks that this range will be exceeded, ground directly or indirectly(with the use of an appropriate impedance) the signal ground of the system under
test, and use it within this range. It is possible to use a resistor or a varistor or
any voltage controlling element as the impedance element.

4-10

FRA5022

4.5 Servo System Measurement■ Measurement voltage range magnification
FRA5022’s internal oscillator has a dialectic voltage of 42Vpk against the case. It is thus
possible directly input a signal with an electric potential of up to about ±40V to thecircuit.
On the other side, the analyzer input voltage range is limited to ±10V. It is not possible tomeasure directly when a signal exceeds this range. Even in such cases, it is possible makemeasurement by means of other methods like attenuate a signal with an attenuator orshift the analyzer ground electric potential to an external circuit. In the case a signal isattenuated it becomes necessary to compensate the frequency response for thisattenuation.

“4.7 Equalizer”

C1 150pF
Signal input

4.7kΩ

±10V

FRA
CH1 or CH2
input

Signal input

FRA
CH1 or CH2
input

0 - 20V±20V±10V max
R1
R2

4.7kΩ

Coaxial cable
1m
Characteristic impedance
50Ω

When the signal source impedance is sufficiently low, if theparallel values of R 1 and R2 are set below a few kΩ, theerrors can be reduced.
When changing the attenuation ratio it is set to C 1 R1≒R2
C2. Here, C2 = cable capacitance + FRA input capacitance.
In the case of a 1m coaxial cable of 50Ω, C2 = about 150pF.
The higher the parallel values of R 1 and R2 and the higher
the frequency, the bigger will be the errors. Use
attenuation only after evaluating thoroughly the generalaccuracy.

Figure 4-8

10VPower for shift

Power for the shift can be a battery with
low internal resistance.
When the signal level difference is big,
split the shift power for CH1 and CH2 toprevent inter-channel interference.
Do not apply to locations where theoriginal voltage exceeds FRA5022’s
non-destructive maximum input voltage,±24V.

Measurement voltage range magnification example

4-11

FRA5022

4.6 Data Memory

4.6

Data Memory

FRA5022 has two measurement results storage memories (data memory A, data memory
B).
The latest measured data is always put to data memory A.
The following data memory operations are possible.
<System menu screen>■ Measurement data recording

STORE data A-->B

Copies the contents of data memory A to data memory B. The contents of data memory
A stays in place.
<Sweep Menu Screen, Spot Menu Screen>■ Data memory display

DISP data memory

It is possible to select a display method for the data in data memory.
A:

Displays the contents of data memory A.

B:

Displays the contents of data memory B.

A&B: Displays the contents of data memory A and B (when in graph display).
A/B:

Displays the vector ratio (magnitude ratio, phase difference).

4-12

FRA5022

4.7 Equalizer

4.7

Equalizer

It is possible to use the data memory display setting A/B as an equalizer function tocompensate for the errors due to the measurement’s peripheral circuits.
Remove the SUT (system under test), connect directly the actual measurement terminal
and measure the peripheral circuit response, store the data in data memory B. When you
measure SUT again, the data is stored in A. When setting the data memory display to A/B
in the sweep menu screen, the vector ratio (magnitude ratio, phase difference) between A
and B is obtained as SUT characteristics by subtracting the characteristics of theperipheral circuit from those of A.

SUT（OSC：OSCILLATOR）
Peripheral circuits

FRA

FRA
OSC CH1CH2

OSC CH1

B

A(1) Measurement of peripheral circuit
Figure 4-9CH2(2) Measurement of system under test

Connection with equalizer

The data memory display A/B displays the frequency range and frequency points of thedata memory A. In the frequency range where the data memory B has no data, no data isdisplayed. When the values in data memory B are not matching those in data memory A
with respect to frequency, the value of data memory B at the corresponding frequency isestimated by interpolating the values available in the vicinity of the relevant frequency
point. For easier understanding, it would be helpful to match the frequency range (upper
limit, lower limit) with the values at the frequency points obtained by performing
measurements on the peripheral circuit and the system under test.
The base data memory B should store clean data. Avoid using data with variance due tonoise, or data obtained by repeating UP/DOWN during sweep. Otherwise, the calculation
results of A/B may vary even if the data in the data memory A is consistent.
The analyzer input capacitance of FRA5022 has a slight voltage dependency. For thisreason, equalizing may not be effective in reducing errors when the signal source
impedance or frequency is high.

4-13

FRA5022

4.8 Oscillator Output Terminal Change Rate Limit (SLOW)

4.8

Oscillator Output Terminal Change Rate Limit (SLOW)In case the output changes abruptly due to shocks during a vibration test, etc., the system
under test can be damaged.
To prevent this, it is possible to slowly change FRA5022’s oscillator output voltage.

Left/Right cursor keys△▽

・Use the MENU key to display the menu screen, select <SYSTEM> tab with the.

・Use the Up/Down cursor keys
OSC slow on/off

to select OSC slow on/off and press the key 1.

0) Quick only

1) Slow enable

While the SLOW lamp is illuminating, the AC amplitude and DC bias of the output
changes linearly within a duration of up to 10 seconds.
To change the output immediately using the ON/OFF key, press the QUICK key to turn off
the SLOW lamp. After the output is changed immediately for only once, the SLOW lamp
illuminates again.
When Slow enable is selected for the output terminal change rate limit, the SLOW lamp
alternately turns ON/OFF with each press of the QUICK key. The AC amplitude range isfixed at a higher voltage range. This prevents any discontinuity in AC amplitude change
due to range switching. Note, however, that the AC amplitude accuracy deteriorates whenthe AC amplitude is set to less than 1Vpeak (0.707Vrms).
Switching the setting of “OSC slow on/off” may inevitably change the range. For thisreason, ensure that the output terminal change rate limit is set while the output of
FRA5022 is not in use.

4-14

FRA5022

5． REMOTE CONTROL

5.1

Preparations Before Use ································· 5-2

5.1.1

USB Preparations ····································· 5-2

5.1.2

GPIB Preparations ···································· 5-2

5.1.3

Remote Control Interface Selection ·············· 5-2

5.1.4

USB Device Identification ··························· 5-3

5.1.5

GPIB Address Setting ································ 5-3

5.1.6

Necessary Precautions When Using GPIB ····· 5-3

5.2

Remote State Display and Cancellation ·············· 5-3

5.3

Command List ··············································· 5-4

5.4

Command Tree ·············································· 5-9

5.5

Command Explanation ·································· 5-10

5.5.1

5.5.1.1

Subsystem Commands ······················· 5-10

5.5.1.2

Path Separator ·································· 5-10

5.5.1.3

Command Strings Simplification ··········· 5-10

5.5.1.4

Implicit Keywords······························· 5-11

5.5.2

5.6

Summary of Terms ·································· 5-10

Command Detailed Explanations ··············· 5-11

5.5.2.1

Common Commands ·························· 5-12

5.5.2.2

Subsystem Commands ······················· 5-15

Status System ············································· 5-32

5.6.1

Status System Overview ·························· 5-32

5.6.2

Status Byte ············································ 5-33

5.6.3

Standard Event Status ····························· 5-34

5.6.4

Operation Status ····································· 5-36

5.6.5

Overload Status ······································ 5-38

5.7

Programming Cautions ·································· 5-39

5-1

FRA5022

5.1 Preparations Before Use

5.1

Preparations Before Use

FRA5022 can be remote controlled by GPIB or USB-TMC (TMC: Test and Measurement
Class). By sending program messages from the controller it is possible to control thedevice similarly to panel operations and to receive measurement values or setting status
as response messages.
・ The interface assumes that GPIB or USB is used in a favorable environment. Avoid
using them in a noisy environment.

5.1.1

USB Preparations

Install the USB-TMC class driver to the controlling computer and connect with a USB
cable which is sold commercially. It is possible to download the driver install file from
National Instruments Corporation's web site. The driver installation process is described
below.
1) Go to the National Instruments Corporation web site and search for the VISA
Run-time Engine page.
2) From VISA Run-time Engine's page, download VISA Run-time Engine. User
registration is required. Download VISA Run-time Engine Ver3.3 or superior.
3) The downloaded file is a self extracting archive. Install after extraction.
4) After the process is correctly completed, the USB-TMC class driver is installed.
The above information is effective at the time of the creation of this instruction manual.
For more details, see the National Instruments Corporation's web site. The web site
address or provided services can be modified without prior notice.

5.1.2

GPIB Preparations

Install a GPIB card/controller board on the controlling computer and connect theboard/controller card to FRA5022 using a GPIB cable commercially available. For details,
see the operation manual of the GPIB card/controller board.

5.1.3

Remote Control Interface Selection

In FRA5022 it is possible to select GPIB or USB as remote control interface. It is notpossible to use GPIB and USB simultaneously. Select either one from the system menu
keys

△
▽

screen. First, press the MENU key to display the menu screen. Use the left/right cursor
to select the <SYSTEM> tab. Use the up/down cursor keys

to select thefollowing items and select either GPIB or USB.
Items:

INTERFACE connect

Value range:0) GPIB

1) USB

5-2

FRA5022

5.1 Preparations Before Use

5.1.4

USB Device Identification

FRA5022 is automatically identified by connecting it with UBS to the computer on which
USB-TMC class driver is installed. FRA5022 is identified internally by the following
parameters.
Vendor ID: 3402 (0x0D4A)
Indicates NF Corporation
Decimal (hexadecimal) notation
 Product ID: 15 (0x000F)
Indicates FRA5022
 Serial number: Device serial numberThis number is a unique number.
It is possible to check the serial number from the system menu screen.


Items: Serial Number

5.1.5

GPIB Address SettingWith GPIB the system devices are identified by a device- specific address. Each device
must be setup with a unique GPIB address. The GPIB address for FRA5022 can be set via
the system menu screen.
Items: INTERFACE address
Value range: 0 - 30

5.1.6






5.2

Necessary Precautions When Using GPIB
Manipulate the GPIB connector only when all the devices connected to the bus
have their power turned off.
When using GPIB, turn the power on for all the devices connected to the bus.
The number of devices connectable to the bus from GPIB, including the controller,
is 15.
Cable length has the following restrictions.
・total cable length ≦（2mnumber of devices or 20m, whichever is shorter)・length for 1 cable ≦ 4m
Each device must be setup with a unique GPIB address. Devices connected to thebus can be damaged if they are identified with the same address.

Remote State Display and Cancellation

FRA5022 can be operated in the remote state or local state.
In the local state, all the panel operations are enabled. Normally, the device is switched to
the remote state when it is operated via GPIB or USB. Once switched to the remote state,
the REMOTE lamp on the front panel illuminates, indicating that all the panel operations
are disabled except for swtching the device back to the local state.
Except when the device is in the local lockout state, pressing the BS/LOCAL key switches
the device back to the local state from the remote state. Setting the device to the local
lockout state via the controller allow you to prevent the device from being operated
inadvertently. When in the local lockout state, switching the device back to the local stateis possible only by sending a message from the controller but not by pressisng BS/LOCAL
key. Actually, this message involves operations of sending GTL command or resetting REN
line to False. Note that, when the GPIB cable is disconnected, the device returns to the
local state because REN line is reset to False. Also, when the USB cable is disconnected,
the device is reset to the local state.

5-3

FRA5022

5.3 Command List

5.3

Command List

FRA5022 commands are separated into the common commands defined by IEEE488.2 andsubsystem commands that reflect device-specific functions.
The FRA5022 subsystem commands are show in table 5-1. Common commands supported
by FRA5022 are shown in table 5-2. The meaning of codes used in table 5-1 and table 5-2
are explained below. It is possible to omit the keywords lower case parts.
・Commands that make inquiries are called queries and are ended with aquestion mark. In the command list table, queries are omitted for thefunctions that can make both settings and inquiries.

・

Keywords shown in square brackets ([ ]) are those that support omission(implicit keyword)・The vertical bar ( | ) indicates the possibility to select a keyword fromseveral keywords.
Table 5-1

FRA5022 subsystem command list 1/3

Function
Self calibration
Data display format
Data memory display
Copy to data memory B
Spot measurement phase minimum
Graph automatic scaling
Graph gain dB maximum value
Graph gain dB minimum value
Graph phase maximum value
Graph phase minimum value
Excessive input detection level
Processing excessive input
Measurement delay time
Integration cycle
Integration time
Measurement mode
Spot continuous measurement
Setting memory copy
Setting memory deletion (initialization)
Settings memory modification status
Settings memory title

CommandCALibration subsystem:CALibration[:ALL]?
DISPlay subsystem:DISPlay:COORdinates:DISPlay:DATA:MEMory:DISPlay:DATA:STORe:DISPlay:PHASe:MINimum:DISPlay:WINDow:SCALe:MODE:DISPlay:WINDow:TRACe:GAIN:MAXimum:DISPlay:WINDow:TRACe:GAIN:MINimum:DISPlay:WINDow:TRACe:PHASe:MAXimum:DISPlay:WINDow:TRACe:PHASe:MINimum
INPut subsystem:INPut{1|2}:VOLTage:OVERload[:LEVel]:INPut:VOLTage:OVERload:RESPonse
MEASure subsystem:MEASure:DELay[:TIME]:MEASure:INTegrate:CYCle:MEASure:INTegrate:TIME:MEASure:MODE:MEASure:SPOT:REPeat
MEMory subsystem:MEMory:COPY:MEMory:DELete:MEMory:STATe:MEMory:TITle

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FRA5022

5.3 Command List

Table 5-1

FRA5022 subsystem command list

Function

2/3

CommandSENSe subsystem

Sweep measurement data
readout
Sweep measurement points
readout
Spot measurement data readout
Spot gain evaluation maximum
Spot gain evaluation minimum
Spot phase evaluation
maximum
Spot phase evaluation minimum
Spot evaluation results readout
Oscillator frequency
Measurement operation
Sweep operation mode
Sweep frequency axis format
Sweep frequency points
Sweep maximum frequency
Sweep minimum frequency
Oscillator output SLOW status
Oscillator output variation
speed
Oscillator output ON OFF
Oscillator DC bias
Oscillator AC amplitude
AC amplitude unit

:SENSe:DATA:SWEep[:DATA]?
:SENSe:DATA:SWEep:POINt?
:SENSe:DATA:SPOT[:DATA]?
:SENSe:DATA:SPOT:LIMit:GAIN:MAXimum:SENSe:DATA:SPOT:LIMit:GAIN:MINimum:SENSe:DATA:SPOT:LIMit:PHASe:MAXimum:SENSe:DATA:SPOT:LIMit:PHASe:MINimum:SENSe:DATA:SPOT:LIMit:REPort?
SOURce subsystem[:SOURce]:FREQuency[:IMMediate][:SOURce]:SWEep:MEASure[:SOURce]:SWEep:MODE[:SOURce]:SWEep:SPACing[:TYPE][:SOURce]:SWEep:SPACing:POINt[:SOURce]:SWEep[:LEVel]:MAXimum[:SOURce]:SWEep[:LEVel]:MINimum[:SOURce]:VOLTage:SLOW:ENABle[:SOURce]:VOLTage:SLOW[:STATe][:SOURce]:VOLTage:OUTPut[:STATe][:SOURce]:VOLTage:OFFSet[:IMMediate][:SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude][:SOURce]:VOLTage:UNIT

5-5

FRA5022

5.3 Command List

Table 5-1

FRA5022 subsystem command list

Function
Operation condition register
Operation event enable register
Operation event register
Operation transition filter (1 → 0)
Operation transition filter (0 → 1)
Overload event enable register
Overload event register
Error contents query
Error dismissal

3/3

Command
STATus subsystem
STATus:OPERation:CONDition?
STATus:OPERation:ENABle
STATus:OPERation[:EVENt]?
STATus:OPERation:NTRansition
STATus:OPERation:PTRansition
STATus:OVERload:ENABle
STATus:OVERload[:EVENt]?
SYSTem subsystem
SYSTem:ERRor?
SYSTem:OVERload:RELease

5-6

FRA5022

5.3 Command List
Table 5-2
Name
*CLS Clear status command*ESE Standard event status enablecommand / query*ESR? Standard event status
register query*IDN? Identification query*OPC

Operation complete
command / query*RCL

Recall command*RST

Reset command*SAV

Save command

*SRE
*STB?
*TST?

Service request enablecommand/query
Status byte query
Self-test query*WAI

Wait to continue command

Common command list
Function
Clears status data
Sets/queries the standard event status enableregister.
Queries the standard event status register.
Queries the device identification information(model name etc).。
Sets standard event status register's OPC bit to
be set to 1 after all the overlapped commands
have been processed. When querying, returns 1
when all the processes are completed.
Switches the settings to the specified setting
memory contents.
Resets the device, sets output to OFF, reverts
the settings related to measurements to initialvalues.
Copies the current settings to the specified
setting memory.
Sets/queries the service request enable register.
Queries the status byte.
Queries the self diagnosis results.
*In FRA5022, 0 is always returned.
Waits until all the overlapped commands havebeen processed before executing latercommands.

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FRA5022

5.3 Command List

■ Input buffer
・It is possible to send commands up to the size of the input buffer (about 4000
characters) at once.
・Sent commands are stored in the input buffer, interpreted sequentially and executed inorder.
・If illegal commands are found at interpretation or at execution, an error is generated
and the later command are not processed.
・When interpretation and execution are completed, the input buffer is cleared and it ispossible to input next commands.

■ Device Clear
The device clear function (DCL, SDC) for interface allows you to:・ Clear the input buffer
・ Clear the output queue
・ Clear the waiting for overlapped command completion using *WAI, *OPC, or *OPC?

5-8

FRA5022

5.4 Command Tree

5.4

Command Tree

The FRA5022 subsystem command tree is shown on figure 5-1.
CALibration
DISPlay[ALL]
COORdinates
DATA
PHASe
WINDow

MEMorySTORe
MINimum
SCALe
TRACe

MODE
GAIN

MAXimum
MINimum
MAXimum
MINimum

PHASe
INPut{1|2}

VOLTage

OVERload

MEASureDELay
INTegrate[TIME]CYCle
TIME

MEMory

SENSe

MODE
SPOT
COPY
DELete
STATe
TITle
DATA

[LEVel]RESPonse

REPeatSWEep[DATA]POINt[DATA]
LIMit

SPOT

GAIN
PHASe

MAXimum
MINimum
MAXimum
MINimum

REPort[SOURce]

FREQuency
SWEep[IMMediate]
MEASureMODE
SPACing[TYPE]
POINt
MAXimum
MINimum
ENABle[STATe][STATe][IMMediate][IMMediate]

LEVel

VOLTage

STATusOPERation

OVERload
SYSTemERRor
OVERload

SLOW
OUTPutOFFSet[LEVel]UNIT
CONDition
ENABle[EVENt]NTRansition
PTRansition
ENABle[EVENt]
RELeaseFigure 5-1[AMPLitude]

Keywords shown in square
brackets ([ ]) are omissible.

Command tree

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FRA5022

5.5 Command Explanation

5.5

Command Explanation

5.5.1 Summary of Terms
Summary of terms used are explained below.

5.5.1.1 Subsystem Commands
Commands are divided into groups depending on their function. Subsystem commands arearranged in a hierarchy. The colon ( : ) is defined as the path separator.
5.5.1.2 Path Separator
The path separator ( : ) separates the current keyword from the keywords one level lower.
In a command string, each colon ( : ) indicates a displacement to the path one level below
the current path.
When the colon ( : ) is found at the beginning of a command string it means “to set thecurrent path to root”. It is possible to omit a heading colon ( : ).
:MEAS:DEL 999.99

↑ ↑

↑↑

(1) (2)(3) (4)(1) Set current path to root(2) MEASure subsystem command (MEASure is a root command)(3) MEASure subsystem attached DELay command(4) A space is required between the header and the parameters
By using a semi-colon ( ; ) to separate a command string it is possible to access a
subsystem command as the same level without changing the current path.

5.5.1.3 Command Strings Simplification
This operation manual displays the syntax of commands by using alphabet letters inupper or lower case to write commands (and a part of the parameters). The upper casestrings are the abbreviated (short) form. Omitting the lower case part or including thewhole string (long form) will be interpreted as the same command. It is not possible to use
a part of the lower case characters as the abbreviation.
Upper and lower case are used only as an expedient means to explicit the form that can beshortened but the device makes no distinction whatsoever between the two. It is possible
to use both simultaneously.
Ex.) :DISPlay:COORdinates?

→ :display:coordinates?
:DISP:coor?

Acceptable (lower case)Acceptable(mixed upper/lower case):DISPL:COOR?

Not Acceptable (wrong
intermediary abbreviatedform):DISP:COO?

Not Acceptable (omission
over-abbreviated)

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FRA5022

5.5 Command Explanation

5.5.1.4

Implicit Keywords

Keywords shown in square brackets ([ ]) indicate the implicit keywords and are omissible.
The device will handle the keyword exactly the same way whether the implicit keyword isabbreviated or not. The following examples show a device setting using both ways.
例） [:SOURce]:FREQuency:SWEep[:LEVel]:MAXimum→:SOUR:FREQ:SWE:LEV:MAX:FREQ:SWE:MAX

12.3kHz12.3kHz

5.5.2 Command Detailed Explanations
The function and syntax of all the commands shown in “Table 5-1 FRA5022 subsystemcommand list” and “Table 5-2 Common command list” are explained below.
【Meaning of symbols】
・Keywords shown in square brackets ([ ]) are those that support omission(implicit keywords)
・Curly braces ({ }) indicate parameters in the command string.
・The vertical bar ( | ) indicates possibilities to select a keyword from several
choices.
・Comparison marks (< >) indicate that a parameter such as numerical values andstrings needs to be set.
【Parameters data format】
SymbolFormat<NR1> Integer (numerical value)<NR2> Decimal point format without exponent(numerical value)<NR3> Decimal point format with exponent(numerical value)<CRD> Strings<SRD> Strings in double quotation marks
Logical value<bool>

Ex.
123
0.072
4.99E+06
ALL“No error”
1, ON etc.

In the case of settings,
・Numerical data are accepted in any format (round off to appropriate
value).
・Strings in quotation marks are accepted in single or double quotation
marks.
【N.B.】
・Both commands and queries are called commands here.
Queries are suffixed with “?”.
・Response messages to commands do not come with headers.
・When the data format of the response signal is string <CRD>, the response
signal is an abbreviation (short form).
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FRA5022

5.5 Command Explanation

5.5.2.1

Common Commands*CLS
Description:

Clears the following statuses.
Standard event status register
Operation event register
Overload event register・・・

Status byte

Note (see below)

Error queue
Parameters:

None

Example:*CLS
Note: The *CLS command does not directly clears the status byte register.
Except for the MAV bit and the RQS bit, the status byte is indirectly
cleared. It is possible to indirectly clear the MAV bit by clearing the
input buffer with a device clear. It is possible to clear the RQS bit byreading out the status with the serial pole.

*ESE<std_event_enable>

Description:

Sets/queries the standard event status enable register.

Parameters:<std_event_enable> register contents, format <NR1>, range 0 to
255
Details・・・ “5.6.3 Standard Event Status”

Example:*ESE 255

Response:<std_event_enable>

Query example:*ESE?

Response example:

255

*ESR?
Description:

Queries the standard event status register contents.
The query clears all the standard event status register bits to 0.

Parameters:

None

Response:

Register contents, format <NR1>, range 0 to 255
Details・・・ Query example:*ESR?

Response example:

128“5.6.3 Standard Event Status”*IDN?
Description:

Queries the model name etc.

Parameters:

None

Response:

Contents “name of manufacturer, model name, serial number,
firmware version” format <SRD>

Query example:*IDN?

Response example:“NF Corporation,FRA5022,9025257,Ver1.00”
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FRA5022

5.5 Command Explanation*OPC
Description:

Sets standard event status register's OPC bit (BIT0) to be set to 1
after all the overlapped commands have been processed.
Overlapped commands・・・ *WAI command explanations

Parameters:

None

Settings example:*OPC

Response:

Format <NR1>
Returns 1 if all the overlapped commands are completed. Even byrunning *OPC?, the standard event status register ’s OPC bit will
not be cleared. To clear this, use Device Clear, *CLS, or *RSTcommand.
*OPC?

Query example:(Example: Overlapped command; *OPC? <PMT>, where PMT refers to Program Message Terminator.)
Response example:*RCL

1<setting_memory>

Description:
Parameters:
Settings example:

Changes the measurement settings to the settings stored in theselected memory (recall).
<setting_memory> memory number, format <NR1>, range 0 to 9
*RCL 5*RST
Description:

Parameters:

Resets the device, sets the output to OFF, reverts the parameters
related to measurements to their initial values (total
initialization).
Details ・・・  “Table 3-1 Setting items andinitial values”
It is not possible to initialize to a specific display screen, even use
a command such as *RST.
None

Settings example:

*RST

*SAV

<setting_memory>

Description:

Copies the currently used settings to the specified setting memory(save).

Parameters:<setting_memory> memory number, format <NR1>, range 0 to 9

Settings example:*SAV 5*SRE<srq_enable>

Description:

Sets the service request enable register.

Parameters:<srq_enable> register contents, format <NR1>, range 0 to 255
Details

Example:*SRE 128

Response:<srq_enable>“5.6.1 Status System Overview”

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FRA5022

5.5 Command Explanation

Query example:

SRE?

Response example:

128

5-14

FRA5022

5.5 Command Explanation*STB?
Description:

Queries the status byte register contents.

Parameters:

None

Response:

Register contents, format <NR1>, range 0 to 255
Details・・・ Query example:*STB?

Response example:

128“5.6.2 Status Byte”*TST?
Description:

Queries the self diagnosis results.

Parameters:

None

Response:

In FRA5022, “0” is always returned

Query example:

TST?

Response example:0

format <NR1>*WAI
Description:

Waits until all the overlapped commands have been processed
before executing later commands. Refer to the explanations
below.

Parameters:

None

Example:*WAI■ Overlapped commands and sequential commands
An overlapped commands is a command that allows for succeeding commands to be
executed while it is being executed.
A sequential command is a command that does not allows for succeeding commands tobe executed while it is being executed.
The following commands are overlapped commands. Commands not listed below aresequential commands.
[:SOURce:]SWEep:MEASure
If you don't want to execute an order until an overlapped commands is executed, use
the *WAI command, the *OPC command or the *OPC? command.
Ex.) overlapped command 1; overlapped command 2; *WAI; sequential command<PMT>
Here: PMT is Program Message Terminator
The waiting caused by the *WAI can be canceled with device clear.
Do not use *WAI for repeat measurement. If a spot measurement command is sentwith repeat setting, the command will be executed during repeat measurement.
Therefore, if the subsequent commands are kept waiting by *WAI, they will be waiting
forever and not be executed.

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FRA5022

5.5 Command Explanation

5.5.2.2

Subsystem Commands:CALibration[:ALL]?
Description:

Executes self calibration.

Parameters:

None

Response:

format <NR1>, range 0/1

Example:CAL?

Response example:

0

Note:

Do not send another command before the self calibration iscomplete. Self calibration takes approximately 50 seconds.
Create a control program that will not raise a timeout and send
the subsequent commands before the response message ofcompleted self calibration is received. If another command issent before the self calibration is complete, some malfunction
may follow. In case of any malfunction, sending the device clear
command will restore the normal operation.

:DISPlay:COORdinates

0: no errors, 1: error<coordinates>:DISPlay:COORdinates?
Description:

Sets/queries the graph display and other data display format.

Parameters:<coordinates>graph axis (measurement value display format)

format <NR1>, range 0/1/2
Settings example:

DISP:COOR 0

Response:<coordinates>

Query example:

DISP:COOR?

Response example:

0:DISPlay:DATA:MEMory

0: GdB, P-F, 1：G, P-F, 2: a, b

sets the data display format to GdB, P-F.

<data_memory>:DISPlay:DATA:MEMory?
Description:

Sets/queries the data memory display.

Parameters:<data_memory>data memory

format <NR1>, range 0/1/2/3
Settings example:

DISP:DATA:MEM 0

Response:<data_memory>

Query example:

DISP:DATA:MEM?

Response example:

0

0: A, 1: B, 2: A&B, 3: A/B:DISPlay:DATA:STORe
Description:

Copies the latest measurement data (data memory A contents)
to data memory B.

Parameters:

None

Example:

DISP:DATA:STOR
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FRA5022

5.5 Command Explanation:DISPlay:PHASe:MINimum<spot_phase_min>:DISPlay:PHASe:MINimum?
Description:

Sets/queries the spot measurement phase minimum value.

Parameters:<spot_phase_min> phase minimum, format <NR2>,
range -360.0 to 0.0 [unit deg]

Settings example:

DISP:PHAS:MIN -180.0

Response:<spot_phase_min>

Query example:

DISP:PHAS:MIN?

Response example:-180.0:DISPlay:WINDow:SCALe:MODE<scale>:DISPlay:WINDow:SCALe:MODE?
Description:

Sets/queries the graph display range automatic/manual value.

Parameters:<scale> display range, format <NR1>,
range 0/1

0: Auto, 1: Manual

Settings example:

DISP:WIND:SCAL:MODE 0

Response:<scale>Query example:

DISP:WIND:SCAL:MODE?

Response example:

0:DISPlay:WINDow:TRACe:GAIN:MAXimum<gain_max>:DISPlay:WINDow:TRACe:GAIN:MAXimum?
Description:

Sets/queries the graph gain dB maximum value.

Parameters:<gain_max> dB maximum, format <NR2>,
range -179.9 to 180.0 [unit dB]

Settings example:

DISP:WIND:TRAC:GAIN:MAX 120.0

Response:<gain_max>

Query example:

DISP:WIND:TRAC:GAIN:MAX?

Response example:

120.0:DISPlay:WINDow:TRACe:GAIN:MINimum<gain_min>:DISPlay:WINDow:TRACe:GAIN:MINimum?
Description:

Sets/queries the graph gain dB minimum value.

Parameters:<gain_min> dB minimum, format <NR2>,
range -180.0 to 179.9 [unit dB]

Settings example:

DISP:WIND:TRAC:GAIN:MIN -120.0

Response:<gain_min>

Query example:

DISP:WIND:TRAC:GAIN:MIN?

Response example:-120.0

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FRA5022

5.5 Command Explanation:DISPlay:WINDow:TRACe:PHASe:MAXimum<phase_max>:DISPlay:WINDow:TRACe:PHASe:MAXimum?
Description:

Sets/queries the graph phase maximum value.

Parameters:<phase_max> phase maximum, format <NR2>,
range -359.9 to 360.0 [unit deg]

Settings example:

DISP:WIND:TRAC:PHAS:MAX 180.0

Response:<phase_max>

Query example:

DISP:WIND:TRAC:PHAS:MAX?

Response example:

180.0:DISPlay:WINDow:TRACe:PHASe:MINimum<phase_min>:DISPlay:WINDow:TRACe:PHASe:MINimum?
Description:

Sets/queries the graph phase minimum value.

Parameters:<phase_min> phase minimum, format <NR2>,
range -360.0 to 359.9 [unit deg]

Settings example:

DISP:WIND:TRAC:PHAS:MIN -180.0

Response:<phase_min>

Query example:

DISP:WIND:TRAC:PHAS:MIN?

Response example:-180.0■ Frequency axis magnification ratio (MAG)It is not possible to set a Bode diagram frequency axis magnification ratio with theremote control interface.
■ Cursor displacement speed
It is not possible to set the cursor displacement speed with the remote c ontrol
interface.

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FRA5022

5.5 Command Explanation:INPut[1|2]:VOLTage:OVERload[:LEVel]<over_level>:INPut[1|2]:VOLTage:OVERload[:LEVel]?
Description:

Sets/queries the excessive input detection level.
Command prefix: with CH1: INPut1, with CH2: INPut2.
When the channel specification is abbreviated to INPut: thevalue is set to CH1.

Parameters:<over_level> detection level, format <NR2>, range 0.01 to 19.99[unit Vrms]

Settings example:

INP1:VOLT:OVER 3.00
sets the excessive input detection level for CH1 to 3.00Vrms

Response:<over_level>

Query example:

INP1:VOLT:OVER?

Response example:

3.00:INPut:VOLTage:OVERload:RESPonse<over_response>:INPut:VOLTage:OVERload:RESPonse?
Description:

Sets/queries the process when excessive input is detected.

Parameters:<over_response> response
format <NR1>,
range 0/1/2/3

0: Lamp, 1: Beep. 2: Hold, 3: Off

Settings example:

INP:VOLT:OVER:RESP 1

Response:<over_response>

Query example:

INP:VOLT:OVER:RESP?

Response example:

1

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FRA5022

5.5 Command Explanation:MEASure:DELay[:TIME]<delay>:MEASure:DELay[:TIME]?
Description:

Sets/queries the measurement delay time.

Parameters:<delay> measurement delay time, format <NR2>,
range 0.00 to 999.99

Settings example:

MEAS:DEL 999.99

Response:<delay>Query example:

MEAS:DEL?

Response example:

999.99:MEASure:INTegrate:CYCle[unit s]<integ_cycle>:MEASure:INTegrate:CYCle?
Description:

Sets/queries the integration cycle.

Parameters:<integ_cycle> integration cycle, format <NR1>,
range 1 to 999[unit cycle]

Settings example:

MEAS:INT:CYC 999

Response:<integ_cycle>

Query example:

MEAS:INT:CYC?

Response example:

999:MEASure:INTegrate:TIME<integ_time>:MEASure:INTegrate:TIME?
Description:

Sets/queries the integration time.

Parameters:<integ_time> integration time, format <NR2>,
range 0.01 to 999.99[unit s]Settings example:

MEAS:INT:TIME 999.99

Response:<integ_time>

Query example:

MEAS:INT:TIME?

Response example:

999.99:MEASure:MODE<mode>:MEASure:MODE?
Description:

Sets/queries the measurement mode.

Parameters:<mode> measurement mode, format <NR1>,
range 0/1

0: CH2/CH1,

Settings example:

MEAS:MODE 0

Response:<mode>

Query example:

MEAS:MODE?

Response example:

0

5-20

1: CH2/OSC

FRA5022

5.5 Command Explanation:MEASure:SPOT:REPeat<spot_repeat>:MEASure:SPOT:REPeat?
Description:

Sets/queries the spot measurement repeat value.

Parameters:<spot_repeat> repeat set
format <bool>, range OFF | 0: single / ON | 1: repeat

Settings example:

MEAS:SPOT:REP ON

Response:<spot_repeat>, format <NR1>, range 0/1

Query example:

MEAS:SPOT:REP?

Response example:

1

0: single, 1: repeat■ Scan measurement
It is not possible to conduct the operations related to scan measurement with theremote control interface.

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FRA5022

5.5 Command Explanation:MEMory:COPY{<source>, <destination>}

Description:

Copies contents between setting memories.

Parameters:<source>, <destination>

copy source memory number, copy

target memory number
format <NR1>, <NR1>,
Example:range 0 to 9 (copy source, copy target)

MEM:COPY 0,1:MEMory:DELete<setting_memory>

Description:

Clears the specified setting memory contents to the initialvalues.

Parameters:<setting_memory> memory number, format <NR1>, range 0 to 9

Example:MEM:DEL 0:MEMory:STATe<setting_memory>, <lock>:MEMory:STATe?

<setting_memory>

Description:

Sets/queries the setting memory modification status.

Parameters:<setting_memory> memory number: format <NR1>, range 0 to 9
<lock> modification status: format <NR1>, range 0/1
0: Free, 1: Lock

Settings example:

MEM:STAT 0,0 Allows modifications to setting memory No.0

Response:<lock>

Query example:

MEM:STAT? 3 Queries modification status of setting memory
No.3

Response example:

0:MEMory:TITle<setting_memory>, <title>:MEMory:TITle?

<setting_memory>

Description:

Sets/queries the setting memory title.

Parameters:<setting_memory> memory number: <NR1> 0 to 9
<title> title: <SRD> string of one-byte
18 characters or less

The allowed characters are the same as those allowed when
inputting from the panel.
Lower case characters can be used during the setting but they
will be converted to upper case characters.
Settings example:

MEM:TIT 1, “TEST(1-2)”

Response:<title>Query example:

MEM:TIT? 1

Response example:“TEST(1-2)”

5-22

FRA5022

5.5 Command Explanation:SENSe:DATA:SPOT[:DATA]?
Description:

Outputs a spot measurement result according to the graph axis
setting (measured value display format).

Parameters:

None

Response:

When: frequency, gain (dB), phaseformat <NR3>, <NR2>, <NR2>
When: frequency, gain (linear), phaseformat <NR3>, <NR3>, <NR2>
When: frequency, a (real part), b (imaginary part)
format <NR3>, <NR3>, <NR3>

Response example:

SENS:DATA:SPOT?
12.345E+03,-118.62,45.54:SENSe:DATA:SPOT:LIMit:GAIN:MAXimum<gain_upper_limit>:SENSe:DATA:SPOT:LIMit:GAIN:MAXimum?
Description:

Sets/queries the spot measurement gain evaluation upper limit.

Parameters:<gain_upper_limit>

Gain evaluation upper limit

format <NR2>, range -199.99 to 199.99[unit dB]

Settings example:

SENS:DATA:SPOT:LIM:GAIN:MAX 120.00

Response:<gain_upper_limit>

Query example:

SENS:DATA:SPOT:LIM:GAIN:MAX?

Response example:

120.00

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FRA5022

5.5 Command Explanation:SENSe:DATA:SPOT:LIMit:GAIN:MINimum<gain_lower_limit>:SENSe:DATA:SPOT:LIMit:GAIN:MINimum?
Description:
Parameters:
Settings example:
Response:
Query example:
Response example:

Sets/queries the spot measurement gain evaluation lower limit.
<gain_lower_limit> gain evaluation lower limit
format <NR2>, range -199.99 to 199.99 [unit dB]
SENS:DATA:SPOT:LIM:GAIN:MIN -120.00<gain_lower_limit>
SENS:DATA:SPOT:LIM:GAIN:MIN?
-120.00:SENSe:DATA:SPOT:LIMit:PHASe:MAXimum<phase_upper_limit>:SENSe:DATA:SPOT:LIMit:PHASe:MAXimum?
Description:
Parameters:
Settings example:
Response:
Query example:
Response example:

Sets/queries the spot measurement phase evaluation upper
limit.
<phase_upper_limit> phase evaluation upper limit
format <NR2>, range -360.00 to 360.00 [unit deg]
SENS:DATA:SPOT:LIM:PHAS:MAX 120.00<phase_upper_limit>
SENS:DATA:SPOT:LIM:PHAS:MAX?
120.00:SENSe:DATA:SPOT:LIMit:PHASe:MINimum<phase_lower_limit>:SENSe:DATA:SPOT:LIMit:PHASe:MINimum?
Description:
Parameters:
Settings example:
Response:
Query example:
Response example:

Sets/queries the spot measurement phase evaluation lower
limit.
<phase_lower_limit> phase evaluation lower limit
format <NR2>, range -360.00 to 360.00 [unit deg]
SENS:DATA:SPOT:LIM:PHAS:MIN -120.00<phase_lower_limit>
SENS:DATA:SPOT:LIM:PHAS:MIN?
-120.00

SENSe:DATA:SPOT:LIMit:REPort?
Description:
Parameters:
Response:

Query example:
Response example:

Queries the spot measurement evaluation result.
None<gain_class>,<phase_class> gain evaluation result,phase evaluation result
format <NR1>, <NR1>
range -1/0/1-1: NG if less than the lower limit/ 0: GO /1: NG if more thanthe upper limit
SENS:DATA:SPOT:LIM:REP?
0,0

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FRA5022

5.5 Command Explanation:SENSe:DATA:SWEep[:DATA]?
Description:

Outputs all the sweep measurement results according to thegraph axis (measured value display format).
The data is output as multiple groups as follows according todata memory display settings.
A:

All the data in data memory A

A/B:

Data corresponding to A's measurement
frequency points within the range ofoverlapping sweep frequencies between data
memory A and B

A&B:

All of B data output after all of data A is output

B:

All the data in data memory B

Parameters:

None

Response:

When displaying frequency, gain dB, phase:format <NR3>, <NR2>, <NR2>
When displaying frequency, gain (linear), phase:format <NR3>, <NR3>, <NR2>
When displaying frequency, a (real part), b (imaginary part):
format <NR3>, <NR3>, <NR3>

Query example:

SENS:DATA:SWE?

Response example:

12.345E+03,-118.62,45.54, ・・・
Outputs the data for all the measurement points delimited withcomma (,):SENSe:DATA:SWEep:POINt?
Description:

Outputs measurement points for the sweep measurement
results of the displayed data memory.
A:

Measurement points of data memory A

A/B:

Measurement points of memory A with respect
to the frequency range common to data
momories A and B

A&B:

Measurement points of data memory A followedby those of data memory B

B:

Measurement points of data memory B

Parameters:

None

Response:

When displaying A, A/B, B<NR1>

When displaying A&B<NR1>, <NR1>

For details of each value, refer to the description above.
Query example:

SENS:DATA:SWE:POIN?

Response example:

1000

When displaying A, A/B, B

1000, 1000

When displaying A&B

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FRA5022

5.5 Command Explanation■ About frequency settings
It is possible to use k (kilo 10 3) and m (mili 10 -3) as suffix multipliers for the oscillator
frequency as well as sweep measurement maximum and minimum frequency. It is also
possible to use Hz as a suffix unit.
Ex. FREQ:SWE:MAX 100kHz[:SOURce]:FREQuency[:IMMediate]<freq_current>[:SOURce]:FREQuency[:IMMediate]?
Description:

Sets/queries the oscillator frequency.

Parameters:<freq_current>

Oscillator frequency

format <NR3>, range 0.10E-03 to 100.00E+03
Settings example:

FREQ 1000

Response:<freq_current>

Query example:

FREQ?

Response example:

1.0000E+03[:SOURce]:SWEep:MEASure[unit Hz]<measure_operation>[:SOURce]:SWEep:MEASure?
Description:

Queries sweep/spot measurement operation instruction andstatus.

Parameters:<measure_operation> Measurement operation
format <CRD>, range STOP | HOLD | SPOT | UP | DOWN

Settings example:

SWE:MEAS UP

Response:<measure_operation>

Query example:

SWE:MEAS?

Response example:

UP[:SOURce]:SWEep:MODE<operation_mode>[:SOURce]:SWEep:MODE?
Description:

Sets/queries the sweep operation mode.

Parameters:<operation_mode>

operation mode, format <CRD>,
range AUTO | MANual

Settings example:

SWE:MODE AUTO

Response:<operation_mode>

Query example:

SWE:MODE?

Response example:

AUTO

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FRA5022

5.5 Command Explanation[:SOURce]:SWEep:SPACing[:TYPE]<freq_spacing>[:SOURce]:SWEep:SPACing[:TYPE]?
Description:
Parameters:
Settings example:
Response:
Query example:
Response example:

Sets/queries the sweep measurement frequency axis format.
<freq_spacing> frequency axis format, format <CRD>,
range LINear | LOGarithmic
SWE:SPAC LIN<freq_spacing> The response is in short form (LIN | LOG).
SWE:SPAC?
LIN[:SOURce]:SWEep:SPACing:POINt<freq_points>[:SOURce]:SWEep:SPACing:POINt?
Description:

Parameters:
Settings example:
Response:
Query example:
Response example:

Sets/queries the sweep measurement frequency points(measurement points).
The measurement occurs a number of time specified frequency
point at regular intervals on either linearly (Lin) or
logarithmically (Log) axis between the minimum and the
maximum frequency.
<freq_points> frequency points, format <NR1>, range 3 to 1000
SWE:SPAC:POIN 1000
<freq_points>
SWE:SPAC:POIN?
1000[:SOURce]:SWEep[:LEVel]:MAXimum<freq_max>[:SOURce]:SWEep[:LEVel]:MAXimum?
Description:
Parameters:
Settings example:
Response:
Query example:
Response example:

Sets/queries the sweep measurement maximum frequency.
<freq_max> maximum frequency, format <NR3>,
range 0.11E-03 to 100.00E+03 [unit Hz]
SWE:MAX 100kHz<freq_max>
SWE:MAX?
100.00E+03[:SOURce]:SWEep[:LEVel]:MINimum<freq_min>[:SOURce]:SWEep[:LEVel]:MINimum?
Description:
Parameters:
Settings example:
Response:
Query example:
Response example:

Sets/queries the sweep measurement minimum frequency.
<freq_min> minimum frequency, format <NR3>,
range 0.10E-3 to 99.999E+03 [unit Hz]
SWE:MIN 0.0001<freq_min>
SWE:MIN?
0.10E-03

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FRA5022

5.5 Command Explanation[:SOURce]:VOLTage:SLOW:ENABle<slow_enable>[:SOURce]:VOLTage:SLOW:ENABle?
Description:

Sets/queries the oscillator SLOW output status.

Parameters:<slow_enable> SLOW status
format <NR1>, range 0/1

Settings example:

VOLT:SLOW:ENAB 1

Response:<slow_enable>

Query example:

VOLT:SLOW:ENAB?

Response example:

1[:SOURce]:VOLTage:SLOW[:STATe]

0: Quick only

1: Slow enable<change_speed>[:SOURce]:VOLTage:SLOW[:STATe]?
Description:

Sets/queries the oscillator output variation speed.

Parameters:<change_speed>

variation speed, format <bool>,
range OFF | 0

OFF | 0 : Quick
VOLT:SLOW ON

Response:<change_speed>, format <NR1>,
range 0/1
VOLT:SLOW?

Response example:

1[:SOURce]:VOLTage:OUTPut[:STATe]

ON | 1

ON | 1 : Slow

Settings example:

Query example:/

0: Quick

1: Slow<output_state>[:SOURce]:VOLTage:OUTPut[:STATe]?
Description:

Sets/queries the oscillator ON/OFF.

Parameters:<output_state>

output status, format <NR1>, range 0 | 1 | 2

0: AC/DC OFF,

1: AC OFF,

2: AC/DC ON

Each value corresponds to the ON AC/DC key on the panel.
Set to 1 puts AC to OFF and keeps DC in its previous state
Settings example:

VOLT:OUTP 0

Response:<output_state>

Query example:

VOLT:OUTP?

Response example:0

displays status according to each operation.

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FRA5022

5.5 Command Explanation[:SOURce]:VOLTage:OFFSet[:IMMediate]<dc_offset>[:SOURce]:VOLTage:OFFSet[:IMMediate]?
Description:

Sets/queries the oscillator DC bias.

Parameters:<dc_offset>

DC bias, format <NR2>,
range -10.00 to 10.00 [unit V]

Settings example:

VOLT:OFFS 10.00

Response:<dc_offset>

Query example:

VOLT:OFFS?

Response example:

10.00[:SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude]<amplitude>[VRMS|VPK][:SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude]?
Description:

Sets/queries the oscillator AC amplitude.
The set value is interpreted as a value of the unit set in
VOLTage:UNIT.
When a suffix is used for this value (VRMS|VPK),
VOLTage:UNIT becomes irrelevant and the unit is interpreted
as being the suffix.

Parameters:<amplitude> AC amplitude : <NR2>

0.000 to 7.07 [unit Vrms] |0.000 to 10.00 [unit Vpk]

Settings example:

VOLT 7.07

Response:<amplitude>

Query example:

VOLT?

Response example:

7.07[:SOURce]:VOLTage:UNIT

Other examples) VOLT 10VPK, VOLT 1VRMS<amplitude_unit>[:SOURce]:VOLTage:UNIT?
Description:

Sets/queries the oscillator AC amplitude display unit andresponse unit.

Parameters:<amplitude_unit>

AC amplitude unit, format <CRD>,
range VRMS | VPK

Settings example:

VOLT:UNIT VRMS

Response:<amplitude_unit>

Query example:

VOLT:UNIT?

Response example:

VRMS

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FRA5022

5.5 Command Explanation■ About the setting range to the status system 16 bit register
The MSB (most significant bit) of the status system 16 bit register is always set to 0.
It is possible to set it to any value up to 65535 with a command but the target register
will be set to have its MSB cleared to 0. Therefore, the response message to the querywill have a value 32767 or less.

STATus:OPERation:CONDition?
Description:

Queries operation condition register (OPCR).

Parameters:

None

Response:

Register contents, format <NR1>, range 0 to 32767
Details・・・ “5.6.4 Operation Status”

Query example:

STAT:OPER:COND?

Response example:

0

STATus:OPERation:ENABle<opee>STATus:OPERation:ENABle?
Description:

Sets/queries the operation event enable register (OPEE).

Parameters:<opee> register contents, format <NR1>, range 0 to 65535
Details・・・ “5.6.4 Operation Status”

Settings example:

STAT:OPER:ENAB 0

Response:<opee>

Query example:

STAT:OPER:ENAB?

Response example:

0

STATus:OPERation[:EVENt]?
Description:

Queries the operation event register (OPER).

Parameters:

None

Response:

Register contents, format <NR1>, range 0 to 32767
Details・・・ Query example:

STAT:OPER?

Response example:

0“5.6.4 Operation Status”

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FRA5022

5.5 Command Explanation

STATus:OPERation:NTRansition<transition_neg>

STATus:OPERation:NTRansition?
STATus:OPERation:PTRansition<transition_pos>

STATus:OPERation:PTRansition?
Description:

Sets/queries the operation transition filter.
Depending on the filter settings, each bit will be set to OPER as
described below.

NTR
PTR
0
0
0
1
1
0
1
1
Parameters:

OPER
OPER is not set to 1 even if OPCR is modified
OPER is set to 1 if OPCR is modified from 0 to 1
OPER is set to 1 if OPCR is modified from 1 to 0
OPER is set to 1 if OPCR is modified<transition_neg> negative transition filter, format <NR1>,
range 0 to 65535<transition_pos> positive transition filter, format <NR1>,
range 0 to 65535
Details・・・ “5.6.4 Operation Status”

Settings example:

STAT:OPER:NTR 32767

Settings example:

STAT:OPER:PTR 0

Response:<transition_neg>

Response:<transition_pos>

Query example:

STAT:OPER:NTR?

Query example:

STAT:OPER:PTR?

Response example:0

Response example: 32767
STATus:OVERload:ENABle<ovee>STATus:OVERload:ENABle?
Description:

Sets/queries the overload event enable register (OVEE).

Parameters:<ovee> register contents, format <NR1>, range 0 to 65535

Settings example:

STAT:OVER:ENAB 0

Response:<ovee>

Query example:

STAT:OVER:ENAB?

Response example: 0
STATus:OVERload [:EVENt]?
Description:

Queries the overload event register (OVER).

Parameters:

None

Response:

register contents, format <NR1>, range 0 to 32767
Details・・・ Query example:“5.6.5 Overload Status”

STAT:OVER?

Response example: 0

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FRA5022

5.5 Command Explanation

SYSTem:ERRor?
Description:

Queries the error status

Parameters:

None

Response:

Error number, error message
Error number: format <NR1>, range -32768 to +32767
Error message: format <SRD>
Details・・・ Query example:“6.1.3 Remote Control Errors”

SYST:ERR?

Response example: 0,”No error”
SYSTem:OVERload:RELease
Description:

Releases the error just like RESET ERROR key from the front
panel.
Example of released error・Input signal exceeds measurement possible voltage range
・User set excessive input detection level is exceeded
・Output overload

Parameters:

None

Example:SYST:OVER:REL

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FRA5022

5.6 Status System

5.6

Status System

5.6.1

Status System Overview

The status system for FRA5022 is shown on figure 5-2.

Operation status
Operation condition register

Positive/negativetransition filter

Standard event status

Overload status

Operation event register

Standard event status register

Overload event register

Operation event
enable register

Standard even status
enable register

Overload event
enable register

Logical OR

Logical OR

Logical OR
Output queue
Summary00

RQS

Service request
generation

OPE MSS ESB MAV QUE 2

0

1 OVE

Status byte register

Logical OR

＆
＆
＆
＆
＆
＆
＆

7

6

Figure 5-2

5

4

3

2

1

0

Service request enable register

Status system

5-33

FRA5022

5.6 Status System

5.6.2

Status Byte

The status byte register definitions are shown in table 5-3. Each status byte register bit
becomes valid when the corresponding service request enable register bit is set t o 1. Whenat least one such bit is set to 1, a service request is generated. It is possible to readout thestatus byte with a serial poll or a *STB? query.
Table 5-3
Bit
OPE 7

Weight
128

RQS
/
MSS

6

64

ESB

5

32

MAV

4

16

QUE
－
－
OVE

3
2
1
0

8
4
2
1

Status byte register definitions

Condition to set to 1
When any valid bit of theoperation event register is set to1.
When SRQ is sent

When any valid bit of thestandard event status register is
set to 1.
When the response to the queryis ready to be output.
－－－
When any valid bit of theoverload event register is set to1.

Condition to set to 0
When all of the valid bits of theoperation event register are set
to 0.
RQS: When SRQ is cleared by aserial poll, etc.
MSS: When all of the sourcesummary bits are cleared
to 0.
When all the valid bits of thestandard event status registerare set to 0.
When all of the responses havebeen output and there remains
none to be output.
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
When all of the valid bits of theoverload event register are set
to 0.

■ About verifying status when querying
Normally, once a query command is sent, all you have to do is wait for the response
message. There is no need to check the MAV bit of the status byte.
■ Related commands/queries*STB?
Queries the contents of the status byte.
Bit 6 of the response is MSS (Master Summary Status).
Bit 6 of the serial poll is RQS (Request Service).
*SRE / *SRE?
Sets/queries the service request enable register.
Set to 0 to clear the enable register to 0.
Cannot be cleared by any other commnad.
Cleared to 0 upon powering on.
The parameter value of the setting message or response message to each register isthe sum of the weight of all the bits having 1 as the value.

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FRA5022

5.6.3Standard Event Status

The standard event status structure is shown on figure 5-3. Details about status areshown in table 5-4. When the standard event status enable register bits are set to 1, thecorresponding standard event status register bits become valid. When at least one such bit
is set to 1, the status bit register ESB bit is set to 1.
&
7
6
5
4
3
2
1
0

7
6
5
4
3
2
1
0

Logical OR

Power on (PON)
Always at 0 (unused URQ)
Command error (CME)
Execution error (EXE)
Always at 0 (unused DDE)
Query error (QYE)
Always at 0 (unused RQC)
Operation complete (OPC)&: logical AND

ESR (Standard event status register)Standard event
status summary

ESE (Standard event status enable register)Status byte ESB (bit 5)

Figure 5-3

Table 5-4
Bit
PON 7

Weight
128

URQ

6

64

CME

5

32

EXE

4

16

DDE

3

8

QYE

2

4

RQC

1

2

OPC

0

1

Standard event status structureStandard event status register contents
Contents

Power onSet to 1 when the power is on. If set to 0 by a register readout,
remains at 0 until the power is turned on again.
User request
Always at 0 (unused)
Command error
Set to 1 when there is a syntax error in program code.
Execution error
Set to 1 when parameters are set beyond possible range values orwhen settings are contradictory.
Device dependent error
Always at 0 (unused)
Query error
Set to 1 when a readout has been attempted on an empty response
message output buffer or when the response message output
buffer data has been lost.
Request control
Always at 0 (unused)
Operation complete
Set to 1 when the all the overlapped command process have been
completed.

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FRA5022

5.3 プログラムメッセージ個別説明■ Related commands / queries*ESR?
Queries the contents of the standard event status register.
Cleared to 0 upon query. Can be cleard also by *CLS command.
Cleared to 0 upon powering on. However the PON bit is set to 1.
*ESE / *ESE?
Sets/queries the standard event status enable register.
Set to 0 to clear the enable register to 0.
Cannot be cleared by any other command.
Cleared to 0 upon powering on.
The parameter value of the setting message or response message to each register is thesum of the weight of all the bits having 1 as the value.

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FRA5022

5.3 プログラムメッセージ個別説明

5.6.4

Operation Status

The operation status structure is shown on figure 5-4.
As can be seen on table 5-5, the operation condition register displays FRA5022’s status.
When a positive transition filter register bit is set to 1, the corresponding state changes
from 0 to 1 and the operation event register bit is set to 1. When a negative transition
filter register bit is set to 1, and the state has changed from 1 to 0, the operation event
register bit is set to 1. It is possible to detect both modifications: 0→1, 1→0.
When the operation event enable register bits are set to 1, the corresponding operation
event register bits become valid. When at least one such bit is set to 1, the status byte
OPE bit is set to 1.
OPCR (Operation condition register)
PTR (Positive transition filter)

Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Running spot measurement (SPOT)
Running manual sweep measurement (MSW)
Running automatic sweep measurement (ASW)
Hold status (HOLD)
Oscillator SLOW (SLOW)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Running calibration (CAL)

15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0

15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0

15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0

15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0

15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0

Transition filter

Logical OR

NTR (Negative transition filter)

OPER (Operation event register)

Operation status summary

OPEE (Operation event enable register)Status byte OPE (bit 7)

Figure 5-4

Operation status structure

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FRA5022

5.3 プログラムメッセージ個別説明

Table 5-5
Bit
SPOT 12Weight
4096

MSW

11

2048

ASW 10HOLD 9SLOW 8CAL
0
Other －

1024
512
256
1
－

Operation condition register contents

Contents (when standard status 1)
During spot measurement
Single: At each measurement, set to 1 when the measurement
starts, and cleared to 0 when the measurement ends.
Repeat: Remains 1 during a repeat measurement.
Not cleared to 0 at each measurement.
In manual sweep measurement: running measurement at one
point
Running automatic sweep measurement
Hold state
Changing output voltage SLOW
Running self calibration
Always at 0 (unused)■ Related commands / queries
STATus:OPERation:CONDition?
Queries the operation condition register contents.
The condition register content is not cleared to 0 even if queried.
Always indicates the status of FRA5022.
STATus:OPERation:NTRansition / STATus:OPERation:NTRansition?
Sets/queries the negative transition filter register.
STATus:OPERation:PTRansition / STATus:OPERation:PTRansition?
Sets/queries the positive transition filter register.
Set to 0 to clear these filter registers to 0.
Cannot be cleared by any other command.
Cleared to 0 upon powering on.
STATus:OPERation[:EVENt]?
Queries operation event register.
The event register is cleared to 0 if queried.
The event register can also be cleared with a *CLS command.
Cleared to 0 upon powering on.
STATus:OPERation:ENABle / STATus:OPERation:ENABle?
Sets/queries the operation event enable register.
Set to 0 to clear the enable register to 0.
Cannot be cleared by any other commnad.
Cleared to 0 upon powering on.
A parameter of each register setting message or response message takes a value that adds
up the weight of all bits set to 1.

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FRA5022

5.3 プログラムメッセージ個別説明

5.6.5

Overload Status

The overload status structure is shown on figure 5-5.
As can be seen on table 5-6, the overload event register displays FRA5022’s input/output
status.
When the overload event enable register bits are set to 1, the corresponding overload
event register bits become valid. When at least one such bit is set to 1, the status byte

Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
CH2 excessive input (CH2)
CH1 excessive input (CH1)
Output excessive input (OUTP)

15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0

15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0

Logical OR

OVE bit is set to 1.

OVER (Overload event register)

Overload event
status summary

OVEE (Overload event enable register)Status byte OVE (bit 0)

Figure 5-5
Table 5-6
Bit
CH2
CH1
OUTP

2
1
0

Weight
4
2
1

Other

－

－

Overload status structure

Overload event register contents

Contents (when standard status 1)
Excessive input detected in CH2 (OVER lamp lit)
Excessive input detected in CH1 (OVER lamp lit)
The oscillator output current has largely exceeded the allowable
range
Always at 0 (unused)

5-39

FRA5022

5.3 プログラムメッセージ個別説明■ Related commands / queries
STATus:OVERload:ENABle / STATus:OVERload:ENABle?
Sets/queries the overload event enable register.
Set to 0 to clear the enable register to 0.
Cannot be cleared by any other commnad.
Cleared to 0 upon powering on.
STATus:OVERload [:EVENt]?
Queries overload event register.
An overload event can not be cleared to 0 only if the status that caused its
generation has been released.
The event register is cleared to 0 if queried.
The event register can also be cleared with a *CLS command.
Cleared to 0 upon powering on.
A parameter of each register setting message or response message takes a value that adds
up the weight of all bits set to 1.

5.7

Programming Cautions■ Cautions when sending commands
When you send a command, line feed LF (0AH) is required at the end of the sent string
as the program message terminator. A command sent without LF may not work
properly. Normally, commands sent from the controller computer are automaticallyfollowed by LF or END. However, some drivers may not work properly unless you
specify separately that LF or END should follow the command. In some cases, line feed
may be referred to as new line, but they have the same binary code.

5-40

FRA5022

6． TROUBLESHOOTING

6.1

Error Messages ············································· 6-2

6.1.1

Errors at Power-On ··································· 6-2

6.1.2

Error During Panel Operation ······················ 6-3

6.1.3

Remote Control Errors ······························· 6-3

6.2

When Fault Symptoms are Observed ················· 6-4

6-1

FRA5022

6.1 Error Messages

6.1

Error Messages

Self-diagnosis is performed when the power is turned on. If an error is detected, an error
message is displayed in the lower part of the start screen. Similarly, when improper
values are being set via the remote control interface, an error message is displayed. Error
messages are also displayed when your operation via the front panel has some
restrictions.
Error messages and their causes are described below, together with required actions.
Some other messages may be displayed depending on the situation.

6.1.1

Errors at Power-On
Error messages

Cause

Required action

ROM ERROR

Internal ROM error

Turn the power off, wait for atleast 3 seconds and turn the
SDRAM ERRORInternal SDRAM error
power on again. If the error
BACKUP MEMORY Battery backup contents aremessage persists after turning
ERROR
broken.
the power on several times, it
・Backup battery is empty
will be necessary to make・Backup memory fault
repairs. Contact NF
・Temporary internal data error Corporation or one of ourdue to power-off, etc. while
representatives.
operating on the memory
ANALYZER ERROR Analyzer malfunction
CALIBLATION
ERROR

Self calibration error
Problem with the signal
measurement system in theoscillator or the analyzer.

When an error message is displayed, check “Installation Conditions” in “2.2 Installation” andverify that all the operation conditions are met.
When ROM or SDRAM error is detected, further operation is not possible.
When battery backup contents are broken, the device starts after settings andmeasurement data memory are initialized. When that happens, the line after the above
error message indicates which memory category has been initialized.
STn: Settings memory n = 0..9

NS: Settings not indicated on the left

SA: Data memory A for sweep measurements

SB: Data memory B for sweep measurements

PA: Data memory A for spot measurements

PB: Data memory B for spot measurements

When signal system error during analyzer self check or self calibration is found, error
messages are displayed and further operation is not possible.

6-2

FRA5022

6.1 Error Messages

6.1.2

Error During Panel Operation

Main error messages displayed during panel operation are as bellow.
Error messages
Error cause
Execution error
Error when executing the instruction command(no detailed classification)
Data out of range
The set value is beyond the possible range
Max and min have been reversed when setting a
Invalid param(max<=min)graph display range, etc.
The oscillator output voltage peak value is too
OSC AC+DC > +/-10.5V
high. A normal signal cannot be output
A measurement was going to be executed with
OSC ac output = off
AC amplitude set to 0
OSC is on
Self calibration cannot be executed because theoscillator’s output is on
Parameter is locked
A setting was going to be modified while thesetup item was locked.
Free the setup item and correct the setting.
OSC Overload
The oscillator output is in overload state

6.1.3

Remote Control Errors

Errornumber
0-100

Error messages“No error”<Syntax error>“Command error”-101“Invalid character”-102“Syntax error”<Execution error>-200“Execution error”-222“Data out of range”-350“Too many errors”-370＜FRA5022 specific error＞“Invalid parameter (max<=min)”-371“OSC ad+dc > +/- 10.5V”-372“OSC ac output = off”

-373

“OSC is on”-374“Buffer overflow”-375“Parameter is locked”-376“OSC Overload”

Error cause
No error
Illegal command input (no detailed
classification)
An invalid character was included in thecommand
Input of undefined command or parameter
Error when executing a command (nodetailed classification)
The set command parameter is beyond thepossible range
Error queue overflow, new errors will not
be maintained
Max and min have been reversed whensetting a graph display range, etc.
The oscillator output voltage peak value is
too high. A normal signal cannot be output
A measurement was going to be executedwith AC amplitude set to 0
Self calibration cannot be executed
because the oscillator’s output is on
Input buffer (about 4,000 characters) or
output buffer (about 80,000 characters)
overflow.
A setting was going to be modified while
the setup item was locked.
The oscillator output is in overload state

6-3

FRA5022

6.2 When Fault Symptoms are Observed

6.2

When Fault Symptoms are Observed

If you found a malfunction, try the following actions. If the problem persists, contact NF
Corporation or one of our representatives.
Contents
Possible cause
Power supply
The power supply used iscannot be turned on not in conformance withthe specified ratings
Self calibration
The operation is noterrornormal due to external
noise, etc.
Panel operation
The device is in thedoes not work
remote control state.
Keys have been
deteriorated
Impossible to set
Setting memory isprotected (Lock)AC amplitude is
The ON AC/DC key is notwrongpressedThe measured
values vary largely.

The units selected (Vrmsor Vpeak) are incorrect.
The load impedance islow; the signal voltage isdivided between the 50Ω
output impedance and theload (impedance).
The oscillator is off
The drive signal level issmaller than the set value
Noise is too big or thesignal is too small
The connecting cable tothe oscillator is damaged

Solution
Use a power supply in conformancewith the specified ratings. Firmly
insert the power cord.
Power off and then on. Relocate thedevice to a better environment.
Press the BS/LOCAL key to reset thedevice to the LOCAL control state.
Contact NF Corporation or one of ourrepresentatives for repair.
Clear protection (select “Free”) on themenu screen.
Press the OSCILLATOR ON AC/DC
key. Setting the value only will not
modify the output.
Select Vrms and Vpeak correctly using
the “+/-pk/rms” keys.
Increase the voltage according to theload impedance.

The device does not Total initialization of theoperate as described settings has not beenin the Instruction
executed
ManualRemote control does GPIB/USB selection is
not work
invalid.

Press the OSCILLATOR ON AC/DC
key. Setting the value only will not
modify the output.
Raise the AC amplitude or lengthen the
integration time.
Check the signal wave on an
oscilloscope or the voltage monitor
display in the spot measurement
screen.
Change the data memory display to A
via the menu screen. The latest
measurement data is stored in the data
memory A.
Select the reference from either of OSC
or CH1 connector input depending on
the actual connection.
Check the signal wave on an
oscilloscope or the voltage monitor
display in the spot measurement
screen.
Most of the descriptions contained inthis manual presuppose that thesettings have already been initialized.
Perform total initialization.
Select either of GPIB or USB via thesystem menu screen.

6-4

FRA5022

The measured value Data memory display isis wrong
set to A/B, or to B
(different from theestimate)
The measurement mode
selected (CH2/OSC or
CH2/CH1) is incorrect.
The connecting cables toCH1 and CH2 aredamaged.

7． MAINTENANCE

7.1 Introduction ····················································· 7-2
7.2 Daily Maintenance ············································ 7-2
7.3 Storage, Repacking, and Transportation ··············· 7-2
7.4 Checking Version Number ································· 7-3
7.5 Checking Isolation ············································ 7-3
7.6 Checking Oscillator Output Wave Form ················ 7-3
7.7 Performance Testing ········································· 7-3
7.7.1 Frequency Accuracy Test ······························ 7-4
7.7.2 Oscillator AC Amplitude Accuracy Test ············ 7-4
7.7.3 Oscillator DC Bias Accuracy Test ··················· 7-4
7.7.4 Ratio Accuracy Test ····································· 7-5
7.7.5 IMRR Test ················································· 7-6
7.7.6 Dynamic Range Test···································· 7-6
7.8 Calibration ······················································ 7-7

7-1

FRA5022

7.1 Introduction

7.1

Introduction

The following maintenance is essential for using the device under the best condition.
・Operation inspection: Check if the device operates properly.
・Performance testing: Check if the device respects the rated values.
・Adjustment, calibration: If the rated values are not satisfying, NF Corporation will
make the necessary adjustment or calibration to restore
performance.
・Damage repairs: When performance cannot be restored by the adjustment orcalibration, NF Corporation will identify the cause and location of
the damage and will execute repairs.
This instruction manual describes how to easily proceed with a performance testing.
For more accurate inspections, adjustments, calibration or repairs, contact NF
Corporation or one of our representatives.
A performance testing requires the following measuring instruments.
・ Oscilloscope:

Frequency band: 10MHz or more・ Frequency counter:

Accuracy: within ±510-6

・ AC voltmeter:

Accuracy: within ±0.2%, True RMS
Frequency band: 100kHz or more・ DC voltmeter:

Accuracy: within ±0.1%

・ Resistance meter (tester):

Measurement range: 10MΩ or more

7.2

Daily MaintenanceInstall FRA5022 in a location that fills the installation requirements.
Installation conditions

“Installation Conditions” in “2.2 Installation”

When the case/panel surface needs cleaning, wipe with a soft cloth. To remove persistentcontamination, wipe with a soft cloth soaked with neutral detergent and wrung out.
Do not use any organic solvents like thinner 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

Store FRA5022 in a location that fills the installation requirements.
Installation conditions

“2.2.2 Installation Conditions”

When repacking is necessary, for transportation for example, use a case that is ofsufficient size and strength, use filling that can stand the weight of the device and makesure the device is sufficiently protected.
Make sure the device will not stand shocks during transportation.

7-2

FRA5022

7.4 Checking Version Number

7.4

Checking Version Number

The version number of your FRA5022 is displayed after power-on for a few seconds at thecenter of the screen under the model name. The version number can be retrieved by using
the query “*IDN?”.
About commands
 “5. REMOTE CONTROL”

7.5

Checking Isolation

In FRA50022, each of the oscillator output or analyzer inputs are separetely isolated fromthe case.
By using a resistance meter (including tester or multimeter, etc), check that the resistance
between each of the external conductors of BNC connectors on the front panel and thegrounding terminal on the left bottom of the front panel is 10MΩ or more. Also check theresistance between the BNC connectors in the same manner.

7.6

Checking Oscillator Output Wave Form

Connection: OUTPUT OSCILLATOR → oscilloscope input (input impedance 1MΩ)Settings: After initializing the settings, press the ON AC/DC key with Frequency 1kHz
and Amplitude 7.07Vrms.
Measurement: Measure the oscilloscope wave form.
Evaluation: Correct if it is a 20Vp-p sine wave. Check that there is no distortion ornoise.

7.7

Performance Testing

Performance testing is conducted as part of preventive maintenance to prevent
performance degradation of the FRA5022.
FRA5022 performance testing is also conducted as part of acceptance inspection, periodic
inspection, performance verification after repair, and so forth.
If the result of a performance testing does not meet the specifications, calibration or repair
is required. Contact NF Corporation or one of our representatives.
The performance testing should be conducted in the following conditions.
・Power voltage: 100 to 230V±10％ (250V or less)・Ambient temperature: 23±5℃
・Ambient humidity: 20 to 70%RH, non-condensing
・Warm up: 30 min or more
Take the following precautions when you conduct a performance testing.
・When the use of a coaxial cable is required, use a cable with the following
characteristics: characteristic impedance 50Ω, thickness RG-58A/U or more, length
1m or less. BNC connectors at both ends.
・When 50Ω termination is specified, set the connected measuring instrument input to50Ω. For a measuring instrument that cannot be set to 50Ω, install a feed throughterminator of 50Ω to the measuring instrument input to terminate it.
・The setting options for each test item are the items that can be changed after thedevice is initialized and powered on. First, perform “INITIALIZE all” (total
initialization) via the system menu screen.
 “3.5.4 System Menu Screen”

7-3

FRA5022

7.7 Performance Testing

7.7.1 Frequency Accuracy Test
Connection: OUTPUT OSCILLATOR → Frequency counter input
Settings: After initializing the settings, press the ON AC/DC key with Frequency
100kHz and Amplitude 1Vrms/open.
Measurement: Measure the frequency with the frequency counter.
Evaluation: Correct if ±50ppm (99.9950kHz to 100.0050kHz)

7.7.2 Oscillator AC Amplitude Accuracy Test
Connection: OUTPUT OSCILLATOR → AC voltmeter input
Settings: After initialization the settings, set frequency and AC amplitude Vrms/open
according to the following table.
Press the ON AC/DC key to reflect the changes in output.
Measurement: Measure the output voltage with the AC voltmeter.
Evaluation: Correct if within the bellow specification range.
AC amplitudesettingSpecification (1kHz)±(2% of set value +7mVrms)

Specification (100kHz)±(4% of set value +21mVrms)

7.07Vrms

6.9216 - 7.2184 Vrms

6.7662 - 7.3738 Vrms

3.0Vrms

2.933 - 3.067 Vrms

2.859 - 3.141 Vrms

1.5Vrms

1.463 - 1.537 Vrms

1.419 - 1.581 Vrms

0.7Vrms

0.679 - 0.721 Vrms

0.651 - 0.749 Vrms

0.3Vrms

0.287 - 0.313 Vrms

0.267 - 0.333 Vrms

0.15Vrms

0.140 - 0.160 Vrms

0.123 - 0.177 Vrms

0Vrms

0.000 - 0.007 Vrms

0.000 - 0.021 Vrms

7.7.3 Oscillator DC Bias Accuracy Test
Connection: OUTPUT OSCILLATOR → DC voltmeter input
Settings: After initialization the settings, set AC amplitude to 0 Vrms and DC bias
(V/open) according to the following table.
Press the ON AC/DC key to reflect the changes in output.
Measurement: Measure the voltage with the DC voltmeter.
Evaluation: Correct if within the bellow specification range.
DC biassetting

SPECIFICATIONS±(0.5% of the set absolute value +30mV)+10V+9.920V - +10.080V+5V+4.945V - +5.055V+1V+0.965V - +1.035V

0V-0.030V - +0.030V-1V-1.035V - -0.965V-5V-5.055V - -4.945V-10V-10.080V - -9.920V

7-4

FRA5022

7.7 Performance Testing

7.7.4 Ratio Accuracy Test
Connection: OUTPUT OSCILLATOR → INPUT CH1, CH2 parallel
Separate the oscillator output in two by using a T shape divider and connect
each end to the analyzer's CH1 and CH2.
Use a BNC-BNC coaxial cable with a response impedance of 50Ω and alength of 1m.
Settings: After initialization the settings,
Minimum frequency: 10Hz, Maximum frequency: 100kHz, Frequency points:
100
Integration cycle: 1, Integration time: 0.10s
AC amplitude: 7.07, 1, 100m, 10m Vrms/open
After each modification of amplitude press the ON AC/DC key to reflect thechanges in output.
Measurement: For each AC amplitude, press the DOWN or UP key and execute a sweep
measurement.
Evaluation: Correct if within the following range.
With Frequency ≦ 20kHz Gain 0±0.05dB / Phase 0±0.3°
With Frequency ＞ 20kHz Gain 0±0.15dB / Phase 0±1°

7-5

FRA5022

7.7 Performance Testing

7.7.5 IMRR Test
Connection: OUTPUT OSCILLATOR→ INPUT CH2 and CH1 core conductor and outer conductor together(when testing CH1)
→ INPUT CH1 and CH2 core conductor and outer conductor together(when testing CH2)
Separate the oscillator output in two by using a T shape divider.
Short circuit the input connector core conductor and external conductor of
the channel under test and send a signal between the case and the input
connector. Input a drive signal to the other channels.
Settings: After initialization the settings, Frequency: 60Hz, Integration time: 10s
AC amplitude 7.07Vrms, press the ON AC/DC key to reflect the changes in
output.
Measurement: Press the SPOT key and execute a spot measurement of CH2/CH1.
Evaluation: Correct if tested CH1 gain ＞ 120dB, tested CH2 gain ＜ -120dB.
To measure a very small signal in IMRR or dynamic range tests, it isnecessary to repeat the measurement a few times until the value stabilizes.
This behavior is correct.
Example of CH1 IMRR test

FRA

Input short circuit
OSCILLATOR

CH1

CH2

Signal ground
Coaxial cable

7.7.6 Dynamic Range Test
Connection: OUTPUT OSCILLATOR → INPUT CH2 CH1 input is short circuited(when testing CH1)OUTPUT OSCILLATOR → INPUT CH1 CH2 input is short circuited(when testing CH2)
Settings: After initialization the settings,
Minimum frequency: 10Hz, Maximum frequency: 100kHz, Frequency points:
40, integration time 10s, AC amplitude 7.07Vrms, press the ON AC/DC key toreflect the changes in output.
Measurement: Press the DOWN or UP key and execute a sweep measurement of
CH2/CH1. When there is a lot of electromagnetic interferences a set
frequency may not fit the specified range. Keep the noise source at a
distance and conduct the tests.
Evaluation: Correct if tested CH1 gain ＞ 120dB, tested CH2 gain ＜ -120dB.
Example of CH1 dynamic range test

FRA

Input short circuit
OSCILLATOR

CH1

CH2

Coaxial cable
7-6

FRA5022

7.8 Calibration

7.8

Calibration

If the performance test does not produce satisfying results, NF Corporation will make thenecessary adjustment or calibration to restore performance.
If calibration is necessary, contact NF Corporation or one of our representatives.
You will be liable for the costs of adjustment and calibration outside the warranty period.

7-7

FRA5022

7-8

FRA5022

8． SPECIFICATIONS

8.1 Oscillator ······················································ 8-2
8.2 Analyzer Input ·············································· 8-3
8.3 Analysis Processor ······································· 8-3
8.4 Measurement Processing ······························· 8-4
8.5 Display Part ·················································· 8-5
8.6 Settings Memory ············································ 8-5
8.7 Remote Control Interface ································· 8-5
8.8 General Information ········································ 8-6

Values without accuracy (range) are typical values.

8-1

FRA5022

8.1 Oscillator

8.1

Oscillator

 Output waveform: Sine wave
 Frequency
Setting range: 0.1mHz to 100kHz
Setting resolution: 5 digits, or 0.01mHz whichever is the largest.
Accuracy: ±50ppm
 AC Amplitude
It is possible to set AC amplitude in Vrms or in Vpeak.
Setting range: 0 to 7.07Vrms or 0 to 10Vpeak
Setting resolution:
0.01Vrms (amplitude ≧ 1Vrms), 0.001Vrms (amplitude ＜ 1Vrms)
Or 0.01Vpeak (amplitude ≧ 1Vpeak), 0.001Vpeak (amplitude ＜ 1Vpeak)
Accuracy: ± (2％ of set value + 7mVrms or 10mVpeak)
When 10Hz ≦ frequency ≦ 20kHz± (4％ of set value + 21mVrms or 30mVpeak)
When 20kHz ＜ frequency
In either cases, the output is open and there is no output change rate
limit
Vpeak is converted from Vrms measured on a sine wave
 DC bias
Setting range: -10V to +10V
Setting resolution: 0.01V
Accuracy: ± (0.5％ of the set absolute value +30mV + 2% of AC amplitude
Vpeak)
When output is open
 Max output (AC + DC)
Voltage: ±10V (when output open)
Current: ±100mA
 Distortion factor: 0.3％ or less (10Hz ≦ frequency ≦ 10kHz)
1％ or less (10kHz ＜ frequency ≦ 100kHz)
With amplitude setting 10Vpeak, DC bias 0V, load 50Ω, band
500kHz Output impedance: 50Ω, unbalanced
 Output control: AC/DC both on, AC/DC both off, AC only off
It is possible to limit the output variation rate to output both AC/DC
with a slow variation
 Isolation
Insulation voltage: 42Vpk or 30Vrms, DC to 100kHz continuously
From/to one another among oscillator output (signal, ground),analyzer channel input (signal, ground), and the caseCase-to-oscillator electrostatic capacitance: 250pF or less

8-2

FRA5022

8.2 Analyzer Input

8.2

Analyzer Input

 Channel number: 2
 Input impedance: 1MΩ, parallel 60pF
 Frequency range: 0.1mHz to 100kHz (same as oscillator)
 Input voltage
Measurement range: ±10V
Maximum non-destructive input: ±24V
 Excessive input detection level

Detected by fundamental wave amplitude

Setting range: 0.01 to 19.99Vrms
Setting resolution: 0.01Vrms
Processing method: OVER lamp on / warning sound generation / sweep abort /oscillator off
 Measurement range: Automatic switching IMRR: 120dB or more, with 1Hz to 60Hz, signal source impedance ≦ 1ΩAttenuation when signal ground potential variations (vs case) interfere withthe signal
 Dynamic range: 120dB or more
When 1Hz to 100kHz, integration time ≧ 10s and ≧ 100 cycles
Signal magnitude ratio when the one channel is at 10Vpeak and theother channel is terminated with a signal source impedance 1Ω or less
 Isolation
Insulation voltage: 42Vpk or 30Vrms, DC to 100kHz continuously
Analyzer channel input (signal, ground), oscillator output(signal, ground), to/from the caseCase-to-analyzer electrostatic capacitance: 300pF or less8.3

Analysis Processor

 Measurement mode: CH2/CH1, CH2/OSC
 Integration time

The smallest cycle equal or greater than the longer of thefollowing.

Cycle setting range: 1 to 999 cycles
Time setting range: 0.01 to 999.99s
 Ratio accuracy: Gain ±0.05dB (±0.5％) / Phase ±0.3deg
Gain ±0.15dB (±1.5％) / Phase ±1deg

When 0.1Hz to 20kHz
Outside the above ranges

When measurement mode CH2/CH1, input signal level ≧ 10mVrms,
after 30min warm up, and after self calibration is completed

8-3

FRA5022

8.4 Measurement Processing

8.4

Measurement Processing Measurement mode
Sweep: Measures while sweeping between the minimum and maximum
frequencies and displays as graph.
Spot: Measures at a specified frequency, displays the results as numerical values.
Scan: Measures at up to ten frequency points by shifting sequentially among the
spot settings automatically or manually.
 Sweep control
Frequency scale: Linear/Log
Sweep operation: UP (min → max)
DOWN (max → min)
HOLD (holds sweep)
STOP (stops measurement)
Automatic/Manual switching
Automatic: moves automatically to the next frequency point
Manual: moves manually one point at a time to the next
frequency point Delay time

Delay between the point when the user changes the frequency
and the point when the actual signal measurement starts.

Setting range: 0.00 to 999.99s

8-4

FRA5022

8.5 Display Part

8.5

Display Part Display elements: 3.5 inches color LCD. Resolution 320240 dots
 Graph displays
Graph format: Bode diagram (gain, phase vs frequency, split display)
Gain axis: dB fixed. It is possible to display numerical values of linear values atthe cursor point.
Frequency scale: Linear, or log. Follows the sweep settings.
Graph display settings range
Gain: ±180.0dB
Phase: ±360.0deg
Rectangular coordinates display: It is possible to display numerical values for thea + j b values at the cursor point
 Spot display:
Frequency, gain (dB fixed), phase, amplitude (fundamental wave RMS value)
displayed as numerical values
It is possible to evaluate result based on gain dB and phase range setting
 Measured values numerical display
Gain: When dB

Range ±199.99dB, resolution 0.01dB

When linear

Range 0, ±(1.0000E-9 to 9.9999E+9),
resolution 5 digits

Phase: Range arbitrary 360 deg within ±360.00deg, resolution 0.01deg
a, b: Range 0, ±(1.0000E-9 to 9.9999E+9), resolution 5 digits
Amplitude: Range 0.000m to 19.99Vrms
Resolution 4 digits. Until 0.001mVrms.
 Measured data memory
Memory number: 2 (A: latest measured values, B: registered values at anarbitrary point in time)
Recorded point number: Max. 1000 points (for each memory) Memory display mode: A, B, A&B (overlap display), A/B (vector ratio)
For spot measurements, A&B display is not possible.

8.6

Settings Memory
Memory number: 10. It is possible to directly switchover with the numeric
keypad.

8.7

Remote Control Interface

 GPIB: IEEE 488.1, IEEE 488.2
 USB: USB-TMC, USB1.1 full speed

8-5

FRA5022

8.8 General Information

8.8

General Information

 Power for 5055: The AUX connectors on the rear panel provide +24V/-24V
 Memory backup: Even with the power off settings and measured data are conserved
Battery life: 3 years (when exhausted, non-free exchange) Power Supply
Voltage range: AC100V to 230V±10%, but 250V or lessFrequency range: 50/60Hz±2Hz
Power consumption: 55VA max
Over voltage category:Ⅱ
 Environmental conditions
Altitude: 2000m or lessTemperature/humidity range
Performance guarantee
Temperature: +5 to +35℃
Humidity: 5 to 85%RH Absolute humidity 1 to 25 g/m 3,
non-condensing.
Operation
Temperature: 0 to +40℃
Humidity: 5 to 85%RH Absolute humidity 1 to 25 g/m 3,
non-condensing.
Storage
Temperature: -10 to +50℃
Humidity: 5 to 95%RH Absolute humidity 1 to 29 g/m 3,
non-condensing.
%RH

Storage
保管条件 condition

90

Performance
guarantee
性能保証

80
70
60

Operation
動作保証 guarantee

50
40
30
20
10
0
10

0

10

8-6

20

30

40

50 C

FRA5022

8.8 General Information
 Warm up time:

30 min. Accuracy specification apply after warm up.

 Pollution degree:

2 (indoor use)

 Safety regulations:

EN 61010-1
EN 61010-2-030

 EMC:EN 61326-1 (Group1, Class A)
EN 61000-3-2
EN 61000-3-3

 RoHS:

Directive 2011/65/EU

 External dimensions:

434(W) 88(H) 403(D) mm, not counting protuberances.

 Weight:

About 6.8kg (not counting supplied parts)

Complements: Optional or related products are subject to modification or discontinuation
without notice.
For orders, contact NF Corporation or one of our representatives.

8-7

FRA5022

Rear panel figure
Surface treatment
Front panel: Plastic sheet
Ultra light gray (Munsell 6PB9.2/0.1)
Rear panel: Munsell 8.5PB2.6/0.2
Cover: Light gray leather tone (Munsell 6PB7.6/1.2 leather tone)
Bottom cover: Unichrome plated (trivalent)

8.8 General Information

Figure 8-1

External dimensions

8-8

FRA5022

WARRANTYNF Corpoation certifies that this instrument was thoroughly tested and inspected and found tomeet its published specifications when it was shipped from our factory.
All NF Corpoation products are warranted against defects in materials and workmanship for aperiod of one year from the date of shipment. During the warranty period of, NF Corpoation will,at its option, either will repair the defective product without any charge for the parts and labor, or
either repair or replace products which prove to be defective. For repair service under warranty, theproduct must be returned to a service center designated by NF Corpoation. Purchaser shallprepay all shipping cost, duties, and taxes for the product to NF Corpoation from another country,
and NF Corpoation shall pay shipping charge to return the product to purchaser.
This warranty shall not apply to any defect, failure or damage caused by improper use, improper orinadequate maintenance and care or modified by purchaser or personnel other than NF
representatives.

NF CORPORATION

If there are any misplaced or missing pages, we will replace the manual.

Contact thesales representative.

NOTES
 Reproduction of the contents of this manual is forbidden by applicable laws.
 The contents of this manual may be revised without notice.
 Information provided in this manual is intended to be accurate and reliable. However,
we assume no responsibility for any damage regarding the contents of this manual.
 We assume no responsibility for influences resulting from the operations in thismanual.

FRA5022 Instruction Manual

NF Corporation
6-3-20, Tsunashima Higashi, Kohoku-ku, Yokohama
223-8508 JAPAN
Phone +81-45-545-8128 Fax +81-45-545-8187
http://www.nfcorp.co.jp/© Copyright 2007-2022, NF Corporation

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

NF Corporation
横浜市港北区綱島東6-3-20〒223-8508
TEL 045(545)8111(代)
6-3-20, Tsunashima Higashi,
Kohoku-ku,
Yokohama
223-8508 JAPAN