GW Instek APS-1102A User manual

Programmable AC/DC Power Source
APS-1102A
USER MANUAL
GW INSTEK PART NO. 82PS-1102AM01
ISO-9001 CERTIFIED
MANUFACTURER

This manual contains proprietary information, which is protected by copyrights. All rights are
reserved. No part of this manual may be photocopied, reproduced or translated to another
language without prior written consent of Good Will company.
The information in this manual was correct at the time of printing. However, Good Will continues to
improve products and reserves the rights to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan.

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i
Preface 
Thank you for purchasing the APS-1102A programmable AC/DC power source.
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 these caution symbols
and their contents to ensure the safety of the user and avoid damage to the equipment.
This mark 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.
This mark indicates information for the avoidance of damage to the equipment during handling.
This manual has the following chapter organization.
If reading this manual for the first time, start from 1. OVERVIEW.
1. OVERVIEW
Briefly describes and explains the features, applications, and functions as well as brief
operation principles of the APS-1102A.
2. PREPARATIONS BEFORE USE
Describes various cautions regarding preparations to be made before using the APS-1102A,
ranging from installation to connection of the power supply.
3. PANEL AND BASIC OPERATIONS
Describes the functions and actions of the panel controls and their basic operations. Read
this chapter while operating the APS-1102A.
4. ADVANCED OPERATION EXAMPLE
Describes how to use advanced functions.
5. MENUS
Explains the LCD screen configuration and setting items of each menu.
6. REMOTE INTERFACE
Describes the commands for controlling the APS-1102A via the USB interface or RS232
interface.
7. TROUBLESHOOTING
Describes error messages and handlings when problems occur.
8. MAINTENANCE
Describes basic operation tests and daily maintenance procedures.
9. SPECIFICATIONS
Lists the specifications (functions and performance) of the APS-1102A.
！
CAUTION
！
WARNING

APS-1102A
ii
Safety Precautions 
To ensure safe use, be sure to observe the following warnings and cautions.
GW Instek shall not be held liable for damages that arise from a failure to observe these warnings and
cautions.
This product is a Class 1 product (with protective conductor terminal) that conforms to the JIS and IEC
insulation standards.
Be sure to observe the contents of this instruction manual.
This instruction manual contains information for the safe operation and use of this product.
Be sure to read this information first before using this product.
All the warnings in the instruction manual must be heeded to prevent hazards that may cause major
accidents.
Be sure to ground the product.
This product uses a line filter and must be grounded to avoid the risk of electric shock.
To prevent electric shock, be sure to safely implement grounding according to Japanese Standard
for Electrical Equipment Technology D (100 or lower) or higher.
The APS-1102A is automatically grounded when the 3-prong power plug is connected to a 3-prong
power outlet with a protective grounding contact.
This product does not come with a 3-prong to 2-prong conversion adapter. When using a separately
sold 3-prong to 2-prong conversion adapter, be sure to connect the grounding wire of the adapter to
the grounding terminal next to the outlet.
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, do not use this product until it has been repaired, and immediately report
the problem to the location of purchase (either GW Instek or our agent).
Do not use this product when gas is present.
An explosion or other such hazard may result.
Do not remove the cover.
This product contains high-voltage parts. Absolutely never remove its cover.
Even when the inside of this product needs to be inspected, do not touch the inside. All such
inspections are to be performed by service technicians designated by GW Instek.
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.

APS-1102A
iii
！
！
！
Prevention of electrical shock due to output voltage
The maximum output voltage of the APS-1102A is 440 V.
Operate carefully the APS-1102A to avoid electrical shock.
Directly touching the output or changing cable connections while output is on may cause electrical
shock.
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 Symbol
This symbol is displayed to alert the user to potential danger and refer
him/her to the instruction manual.
Electric Shock Danger Symbol
This symbol indicates locations that present a risk of electric shock under
specific conditions.
Protective Ground-Terminal Symbol
This symbol identifies a pin that must be grounded to avoid electric shock.
Before operating the device, be sure to safely implement grounding
according to Japanese Standard for Electrical Equipment Technology D
(Type 3, 100 Ω or lower) or higher.
Warning Symbol
This symbol indicates information for avoiding danger to human life or bodily
injury while handling this product.
Caution Symbol
This symbol indicates information for preventing damage to the product
when handling it.
Other symbols
This symbol indicates the “on” position of the power switch.
This symbol indicates the “off” position of the power switch.
This symbol indicates that the external conductor of the connector is connected to
the case.
This symbol indicates that the external conductor of the connector is connected to
the signal ground.
Waste disposal
To help ensure environmental protection, please note the following precautions regarding disposal
of this product.
<1> This product contains a lithium battery.
<2> The LCD backlight unit contains mercury.
<3> Use a professional industrial waste contractor to dispose of this product.
CAUTION
WARNING

APS-1102A
iv
Contents
page
Preface ................................................................................................................i
Safety Precautions ..............................................................................................ii
1. OVERVIEW ........................................................................................................ 1-1
1.1 General.........................................................................................................1-2
1.2 Features........................................................................................................1-2
1.3 Applications...................................................................................................1-3
1.4 List of Functions............................................................................................ 1-5
1.5 Operation Principles...................................................................................... 1-7
2. PREPARATIONS BEFORE USE ......................................................................... 2-1
2.1 Checking Before Use..................................................................................... 2-2
2.2 Installation Environment ................................................................................ 2-3
2.3 Grounding and Power Supply Connection .....................................................2-6
2.4 Simple Operation Checks.............................................................................. 2-8
2.5 Calibration................................................................................................... 2-10
3. PANEL AND BASIC OPERATIONS..................................................................... 3-1
3.1 Panel Components and Operations ............................................................... 3-2
3.1.1 Operation panel........................................................................................ 3-2
3.1.2 Front panel............................................................................................... 3-3
3.1.3 Rear panel ...............................................................................................3-4
3.2 Display and Initial Settings at Power-on ........................................................ 3-5
3.3 I/O Terminals................................................................................................. 3-8
3.3.1 Output terminals (front and rear) .............................................................. 3-8
3.3.2 RS232 connector.....................................................................................3-11
3.3.3 USB connector....................................................................................... 3-12
3.3.4 External control I/O ................................................................................ 3-13
3.3.5 External signal input/external sync signal input terminal......................... 3-15
3.4 Main Operation Example ............................................................................. 3-16
3.4.1 Power on/off........................................................................................... 3-17
3.4.2 Setting output mode ............................................................................... 3-19
3.4.3 Setting output voltage range................................................................... 3-21
3.4.4 Setting waveform ................................................................................... 3-23
3.4.5 Setting output voltage ............................................................................ 3-24
3.4.6 Setting output frequency ........................................................................ 3-26
3.4.7 Using limiter functions............................................................................ 3-28
3.4.8 Output on/off .......................................................................................... 3-32
3.4.9 Using measurement functions ................................................................ 3-33
3.5 Output Characteristics................................................................................. 3-36
4. ADVANCED OPERATION EXAMPLE.................................................................. 4-1
4.1 Use as a DC Power Source........................................................................... 4-2
4.1.1 Connecting output terminal to load during DC output................................ 4-2

Contents
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4.1.2 Selecting an output mode (AC+DC-INT mode) ......................................... 4-3
4.1.3 Setting the output voltage range...............................................................4-5
4.1.4 Setting the output voltage......................................................................... 4-7
4.1.5 Setting output frequency of superimposed AC .......................................... 4-9
4.1.6 Setting superimposed AC waveform....................................................... 4-10
4.1.7 Using the measurement function .............................................................4-11
4.2 Measurement of Inrush Current................................................................... 4-15
4.2.1 Inrush current......................................................................................... 4-15
4.2.2 Set phase at output on ........................................................................... 4-16
4.2.3 Set measurement display to peak value ................................................. 4-17
4.2.4 Reset the peak current hold value .......................................................... 4-18
4.3 Measurement of Harmonic Current.............................................................. 4-20
4.4 Using the Sequence Function...................................................................... 4-22
4.4.1 Sequence operations ............................................................................. 4-22
4.4.2 Sequence settings.................................................................................. 4-29
4.4.3 Programming sequences........................................................................ 4-31
4.4.4 Control of sequence operations.............................................................. 4-37
4.4.5 Clear sequence memory......................................................................... 4-39
4.4.6 Example of sequence operation settings ................................................ 4-40
4.4.7 Execution of sequence operations.......................................................... 4-44
4.5 Control Using External Control I/O Connector ............................................. 4-48
4.6 Output of Arbitrary Waveforms..................................................................... 4-49
4.7 Synchronize the Output with External Signal ............................................... 4-51
4.7.1 External signal synchronization .............................................................. 4-52
4.7.2 Line synchronization .............................................................................. 4-54
4.8 Using Memory Functions............................................................................. 4-55
4.9 Amplification of External Signal ................................................................... 4-58
4.10 Adding External Signals and Internal Signals .............................................. 4-62
5. MENUS .............................................................................................................. 5-1
5.1 Screen Configuration..................................................................................... 5-3
5.1.1 Status icons..............................................................................................5-5
5.1.2 Warnings and error messages..................................................................5-6
5.1.3 Sequence display.....................................................................................5-6
5.2 Basic Operations...........................................................................................5-7
5.2.1 Menus...................................................................................................... 5-7
5.2.2 Navigating the menu tree ....................................................................... 5-12
5.2.3 Numerical value input operations ........................................................... 5-13
5.2.4 Selection and input operations that require confirmation ........................ 5-13
5.2.5 EXEC input ............................................................................................ 5-14
5.2.6 Shortcut keys ......................................................................................... 5-14
5.3 SET Menu ................................................................................................... 5-15
5.3.1 Output mode setting............................................................................... 5-16
5.3.2 Output voltage range setting .................................................................. 5-17
5.3.3 Setting output voltage ............................................................................ 5-18
5.3.4 Setting output frequency ........................................................................ 5-19

Contents
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5.3.5 Output initial phase settings ................................................................... 5-19
5.3.6 Waveform settings.................................................................................. 5-20
5.3.7 Peak current limiter settings ................................................................... 5-21
5.3.8 RMS current limiter settings ................................................................... 5-22
5.4 MEASURE Screen....................................................................................... 5-23
5.4.1 Output voltage measurement ................................................................. 5-24
5.4.2 Output current measurement.................................................................. 5-25
5.4.3 Output power measurement ................................................................... 5-26
5.4.4 Load power factor measurement ............................................................ 5-26
5.4.5 Load crest factor measurement .............................................................. 5-27
5.4.6 Output harmonic current measurement .................................................. 5-27
5.4.7 External synchronization frequency measurement.................................. 5-27
5.5 MISC Menu ................................................................................................. 5-28
5.5.1 Sequence (SEQUENCE) ........................................................................ 5-28
5.5.2 Memory (MEMORY) ............................................................................... 5-32
5.5.3 Remote (REMOTE) ................................................................................ 5-33
5.5.4 System (SYSTEM) ................................................................................. 5-34
5.5.5 Setting range limiter (LIMIT)................................................................... 5-35
5.5.6 Selection of measurement display (MEASURE)...................................... 5-36
5.5.7 Reset of peak current hold value............................................................ 5-36
5.5.8 Output on/off .......................................................................................... 5-37
5.5.9 Adjusting DC offset ................................................................................ 5-38
5.6 System Menu .............................................................................................. 5-40
5.6.1 Keylock .................................................................................................. 5-42
5.6.2 Beep sound............................................................................................ 5-43
5.6.3 LCD contrast adjustment........................................................................ 5-44
5.6.4 LCD display color setting........................................................................ 5-45
5.6.5 Time unit setting..................................................................................... 5-46
5.6.6 Output on/off setting at power-on ........................................................... 5-47
5.6.7 External control input enable/disable setting .......................................... 5-48
5.6.8 Reset function........................................................................................ 5-49
5.6.9 System information ................................................................................ 5-49
6. REMOTE INTERFACE........................................................................................ 6-1
6.1 Remote Interface...........................................................................................6-2
6.1.1 USB ......................................................................................................... 6-2
6.1.2 RS232......................................................................................................6-4
6.2 Command List ............................................................................................... 6-7
6.3 Command Descriptions ............................................................................... 6-13
6.3.1 Overview of Programming Language...................................................... 6-13
6.3.2 Detailed command descriptions.............................................................. 6-18
6.4 Command Tree............................................................................................ 6-49
6.5 Status System ............................................................................................. 6-50
6.5.1 Status byte............................................................................................. 6-51
6.5.2 Standard event status............................................................................. 6-52
6.5.3 Operation status..................................................................................... 6-54

Contents
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vii
6.5.4 Warning status ....................................................................................... 6-55
6.6 Error Message List ...................................................................................... 6-56
6.7 Programming example................................................................................. 6-57
6.8 Programming Precautions ........................................................................... 6-57
6.9 Notes on Remote Control ............................................................................ 6-57
7. TROUBLESHOOTING ........................................................................................ 7-1
7.1 Protection Function ....................................................................................... 7-2
7.2 Error Messages and Error Handling...............................................................7-4
7.2.1 Error at power-on ..................................................................................... 7-5
7.2.2 Protection function-related errors ............................................................. 7-6
7.2.3 Panel operation errors..............................................................................7-7
7.2.4 Warning messages................................................................................... 7-9
7.2.5 Remote-related external control errors ....................................................7-11
7.3 When Failure Is Suspected.......................................................................... 7-12
8. MAINTENANCE.................................................................................................. 8-1
8.1 Introduction ................................................................................................... 8-2
8.2 Routine Maintenance..................................................................................... 8-2
8.3 Storage, Repackaging, and Transportation....................................................8-4
8.4 Checking the Version Number ....................................................................... 8-5
8.5 Backup Battery.............................................................................................. 8-7
9. SPECIFICATIONS .............................................................................................. 9-1
9.1 Output...........................................................................................................9-2
9.2 Current Limiter .............................................................................................. 9-6
9.3 Setting Range Limits ..................................................................................... 9-6
9.4 Signal Sources..............................................................................................9-7
9.5 Measurement Functions ................................................................................ 9-8
9.6 Sequence Function ......................................................................................9-11
9.7 Arbitrary Waveform Memory .......................................................................... 9-12
9.8 Setting Memory ........................................................................................... 9-12
9.9 Protection Functions.................................................................................... 9-12
9.10 General....................................................................................................... 9-13
9.11 External Control I/O..................................................................................... 9-14
9.12 External Interface........................................................................................ 9-15
9.13 Power Input................................................................................................. 9-15
9.14 Withstand Voltage and Insulation Resistance .............................................. 9-16
9.15 Safety and EMC .......................................................................................... 9-16
9.16 Ambient Temperature Range, Ambient Humidity Range, Etc........................ 9-17
9.17 External Dimensions and Weight................................................................. 9-18

Figures
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Figures
page
Figure 1-1. Block Diagram............................................................................................... 1-7
Figure 2-1. Ambient Temperature and Humidity Ranges.................................................. 2-4
Figure 2-2. Power Source Inlet........................................................................................ 2-7
Figure 2-3. Operation Check........................................................................................... 2-9
Figure 3-1. APS-1102A Operation Panel ......................................................................... 3-2
Figure 3-2. APS-1102A Front Panel................................................................................. 3-3
Figure 3-3. APS-1102A Rear Panel .................................................................................3-4
Figure 3-4. Output Outlets (Front) ...................................................................................3-8
Figure 3-5. Output Terminals (Rear)................................................................................3-9
Figure 3-6. Connection to Output Terminals .................................................................. 3-10
Figure 3-7. RS232 Connector.........................................................................................3-11
Figure 3-8. USB Connector ........................................................................................... 3-12
Figure 3-9. External Control I/O Connector ................................................................... 3-13
Figure 3-10. EXT SIG IN/EXT SYNC IN Terminal .......................................................... 3-15
Figure 3-11. POWER Switch ......................................................................................... 3-17
Figure 3-12. Example of Main Operations Screen (in AC-INT Mode)............................. 3-18
Figure 3-13. Example of Measured Value Window (AC-INT Mode)................................ 3-33
Figure 3-14. Output Voltage(AC) vs. Output Current Characteristics ............................. 3-36
Figure 3-15. Output Voltage(AC) vs. Output Current Characteristics ............................. 3-36
Figure 3-16. Output Voltage(DC) vs. Output Current Characteristics ............................. 3-37
Figure 3-17. Output Voltage(DC) vs. Output Current Characteristics............................. 3-37
Figure 4-1. Connection of Block Diode............................................................................4-3
Figure 4-2. Connection of Backflow Diode.......................................................................4-3
Figure 4-3. Example of Measured Value Window (During AC+DC Mode) .......................4-11
Figure 4-4. Example of Harmonic Measurement Window Display .................................. 4-21
Figure 4-5. Example of Basic Step Transitions .............................................................. 4-25
Figure 4-6. Block Diagram of Sequence Mode Transitions ............................................ 4-25
Figure 4-7. Example of Sequence Operation from Hold Mode to <Start>....................... 4-26
Figure 4-8. Example of Sequence Operation at <Branch>............................................. 4-26
Figure 4-9. Loop Specification Method and Step Transition Example............................. 4-27
Figure 4-10. Example of Step Synchronized Output ...................................................... 4-28
Figure 4-11. Sequence Operation during Wait for Phase 0°........................................... 4-28
Figure 4-12. Sequence Shortcut Keys........................................................................... 4-38
Figure 4-13. Step Transition Example (during AC+DC-INT mode) ................................. 4-40
Figure 4-14. LCD Screen During Sequence Execution .................................................. 4-47
Figure 4-15. Synchronized TTL Signal .......................................................................... 4-51
Figure 4-16. Example of Settings from Memory............................................................. 4-55
Figure 5-1. LCD Screen (When Normal)..........................................................................5-3

Figures
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ix
Figure 5-2. LCD Screen (When Warning Is Displayed)....................................................5-3
Figure 5-3. Menu Tree..................................................................................................... 5-7
Figure 5-4. Modification Box ......................................................................................... 5-13
Figure 5-5. Selection Box.............................................................................................. 5-13
Figure 5-6. EXEC Box................................................................................................... 5-14
Figure 5-7. Block Diagram of Signal Sources ................................................................ 5-17
Figure 6-1. Binary Block Data ....................................................................................... 6-14
Figure 6-2. Partial Command Tree ................................................................................ 6-15
Figure 6-3. Command Tree ........................................................................................... 6-49
Figure 6-4. Status System............................................................................................. 6-50
Figure 6-5. Standard Event Status Register................................................................... 6-52
Figure 6-6. Operation Status ......................................................................................... 6-54
Figure 6-7. Warning Status............................................................................................ 6-55
Figure 7-1. Screen Display When Self Fault Check Errors Have Occurred ...................... 7-5
Figure 7-2. Screen Display When Protection Function-Related Error Has Occurred........7-6
Figure 7-3. Screen Display When Panel Operation Error Has Occurred ..........................7-7
Figure 7-4. Screen Display When Warning Has Occurred ............................................... 7-9
Figure 8-1. Air Filter Cleaning Steps................................................................................ 8-3
Figure 8-2. SYSTEM INFORMATION Screen .................................................................. 8-6
Figure 9-1. Temperature and Humidity Ranges ............................................................. 9-17
Figure 9-2. External Dimensions ................................................................................... 9-19

Tables
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x
Tables
page
Table 1-1. List of Functions (1/2)..................................................................................... 1-5
Table1-2. List of Functions (2/2)...................................................................................... 1-6
Table2-1. Panel Settings for Operation Check................................................................. 2-9
Table3-1. Settings in Memory (1/3).................................................................................. 3-5
Table3-2. Settings in Memory (2/3).................................................................................. 3-6
Table3-3. Settings in Memory (3/3).................................................................................. 3-7
Table3-4. Specification of RS232 interface.....................................................................3-11
Table3-5. Specification of USB interface ....................................................................... 3-12
Table3-6. External Control I/O Connectors .................................................................... 3-14
Table3-7. Output Mode List ........................................................................................... 3-19
Table3-8. List of Setting Ranges for Various Output Voltage Range .............................. 3-21
Table3-9. Waveform List................................................................................................ 3-23
Table3-10. Output Voltage Settings ............................................................................... 3-24
Table3-11. Output Frequency Setting ............................................................................ 3-26
Table3-12. Current Limiter Setting Ranges.................................................................... 3-28
Table3-13. Voltage and Frequency Setting Range Limiter ............................................. 3-30
Table4-1. Panel Settings When Using APS-1102A as a DC Power Source ......................4-2
Table4-2. Setting Range Options for Various Output Voltage Ranges.............................. 4-5
Table4-3. Output Voltage Setting Ranges When AC+DC Mode Is Selected ..................... 4-7
Table4-4. Step Execution Parameters ........................................................................... 4-23
Table4-5. Step Transition Parameters ........................................................................... 4-24
Table4-6. Sequence Modes........................................................................................... 4-25
Table4-7. Sequence Control.......................................................................................... 4-26
Table4-8. Setting Items in PROGRAM Screen (1/3) ...................................................... 4-32
Table4-9. Setting Items in PROGRAM Screen (2/3) ...................................................... 4-33
Table4-10. Setting Items in PROGRAM Screen (3/3)..................................................... 4-34
Table4-11. Items in CONTROL Selection Box................................................................ 4-37
Table4-12. Program Settings......................................................................................... 4-40
Table4-13. Functions of External Control I/O Connector................................................ 4-48
Table4-14. Menu Items in MEMORY Screen.................................................................. 4-55
Table4-15. External Input Gain Setting Range............................................................... 4-58
Table5-1. Status Icons List .............................................................................................. 5-5
Table5-2. Sequence Display............................................................................................ 5-6
Table5-3. Items in SET Menu .......................................................................................... 5-8
Table5-4. Items in MISC Menu ........................................................................................ 5-9
Table5-5. Items in SEQUENCE Menu............................................................................ 5-10
Table5-6. Items in MEMORY Menu ............................................................................... 5-10
Table5-7. Items in REMOTE Menu .................................................................................5-11

Tables
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xi
Table5-8. Items in SYSTEM Menu..................................................................................5-11
Table5-9. Items in LIMIT Menu.......................................................................................5-11
Table5-10. Shortcut Keys.............................................................................................. 5-14
Table5-11. SET Menu Items and Output Modes............................................................. 5-15
Table5-12. Output Modes.............................................................................................. 5-16
Table5-13. Output Voltage Settings ............................................................................... 5-18
Table5-14. Output Frequency Setting ............................................................................ 5-19
Table5-15. Output Initial Phase Settings ....................................................................... 5-19
Table5-16. Peak Current Limiter Setting Range............................................................. 5-21
Table5-17. RMS Current Limiter Setting Range............................................................. 5-22
Table5-18. Display Items in MEASURE Screen ............................................................. 5-23
Table5-19. Items in CONTROL Selection Box ............................................................... 5-28
Table5-20. PROGRAM Screen Items (1/3) .................................................................... 5-29
Table5-21. PROGRAM Screen Items (2/3) .................................................................... 5-30
Table5-22. PROGRAM Screen Items (3/3) .................................................................... 5-31
Table5-23. Setting Range Limit (LIMIT)......................................................................... 5-35
Table5-24. Setting range of DC offset adjustment value ................................................ 5-38
Table6-1. Command List (SOURce Subsystem)(1/2).......................................................6-7
Table6-2. Command List (SOURce Subsystem)(2/2).......................................................6-8
Table6-3. Command List (MEASure Subsystem) ............................................................. 6-8
Table6-4. Command List (DISPlay Subsystem) ............................................................... 6-8
Table6-5. Command List (STATus Subsystem)................................................................ 6-9
Table6-6. Command List (OUTPut Subsystem) ...............................................................6-9
Table6-7. Command List (INPut Subsystem) ................................................................... 6-9
Table6-8. Command List (TRACe Subsystem) ................................................................ 6-9
Table6-9. Command List (SYSTem Subsystem) ............................................................ 6-10
Table6-10. Command List (PROGram Subsystem)........................................................ 6-10
Table6-11. Common Command List (Common Commands and Queries)........................6-11
Table6-12. Numerical Value Data Format ...................................................................... 6-14
Table6-13. Character Data Format ................................................................................ 6-14
Table6-14. Status Byte Register Definitions................................................................... 6-51
Table6-15. Standard Event Status Register Definitions.................................................. 6-53
Table6-16. Error Message List ....................................................................................... 6-56
Table7-1. Protection Function.......................................................................................... 7-3
Table7-2. Self Fault Check Messages ............................................................................. 7-5
Table7-3. Protection Function-Related Errors..................................................................7-6
Table7-4. Panel Operation Errors (1/2)............................................................................7-7
Table7-5. Panel Operation Errors (2/2)............................................................................7-8
Table7-6. Warning Messages (1/2).................................................................................. 7-9
Table7-7. Warning Messages (2/2)................................................................................ 7-10
Table7-8. Remote Error Message List ............................................................................7-11

Tables
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xii
Table7-9. When Failure Is Suspected (Problem when Switching Power on/off).............. 7-12
Table7-10. When Failure Is Suspected (Problem During Key Operation) ....................... 7-12
Table7-11. When Failure Is Suspected
(Problem Related to Output Voltage or Output Voltage Range Setting)........ 7-13
Table7-12. When Failure Is Suspected (Problem Related to Frequency Setting) ........... 7-13
Table7-13. When Failure Is Suspected (Problem Related to Output Error) .................... 7-14
Table7-14. When Failure Is Suspected (Problem Related to Measurement Functions) .. 7-15
Table7-15. When Failure Is Suspected (Problem Related to Sequence Function) ......... 7-15
Table7-16. When Failure Is Suspected (Problem Related to Memory Function)............. 7-15
Table7-17. When Failure Is Suspected
(Problem Related to Limiter Setting Range Limit)........................................ 7-16
Table7-18. When Failure Is Suspected (Other Problems) .............................................. 7-16

Tables
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xiii

1OVERVIEW
APS-1102A
1-1
1. OVERVIEW
1.1 General ............................................................................ 1-2
1.2 Features........................................................................... 1-2
1.3 Applications...................................................................... 1-3
1.4 List of Functions............................................................... 1-5
1.5 Operation Principles ......................................................... 1-7

APS-1102A User Manual
APS-1102A
1-2
1.1 General
The APS-1102A programmable AC/DC power source is a power source that can output AC and DC
power, features a compact design for convenient desktop use, and provides a wealth of measurement
functions.
Rated output voltage is 100 Varmus (100 V range) or 200 Vrms (200 V range), with maximum output
capacity of 1 kVA (during AC 200 V input).
It also features eight output modes, with DC output, external input amplification, and line-synchronized
output.
The APS-1102A can be controlled remotely from an external computer via USB or RS232 interface. The
accompanying software supports use of the following functions.
Panel operations
Sequence editing and execution
Arbitrary waveform editing and transfer
Data logger (by capturing measured values)
Worldwide power supply input is supported. Input power factor control function minimizes power supply
input current.
1.2 Features
Control panel with large LCD screen
Settings and measured values are displayed on a large, easy-to-read backlit screen.
Various output modes
Output modes include two operation modes: alternate current (AC) and direct current (AC+DC), each
of which can be combined with four signal source modes: internal (INT), external (EXT), internal +
external (ADD), and external synchronization (SYNC) for a total of eight modes. In the AC mode, DC
component is removed.
Various measurement functions
The APS-1102A is equipped with the following measurement functions.
Voltage (RMS value, average DC value, peak value)
Current (RMS value, average DC value, peak value, peak hold value)
Power (effective, reactive, apparent)
Frequency (only in the external synchronization mode)
Load power factor
Load crest factor

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APS-1102A
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Harmonic current (up to 40th harmonic, 50 Hz/60 Hz fundamental only)
Note: This measurement does not conform to the IEC or other standard.
Enables AC-superimposed DC output
When in the AC+DC mode, an AC wave (sine wave, square wave, or arbitrary waveform) can be
superimposed on the DC output.
Also supports capacitor input load (up to crest factor 4 is supported)
Enables peak current output of up to four times as large as the maximum current (RMS value).
Can be used as an external input amplifier
When “internal + external” is selected, an internal signal source can be added to the external signal
input.
Sequence function
When using an internal signal source, output parameters (output voltage, output frequency, etc.) can be
successively and rapidly changed or swept. In addition, output of specified patterns can be provided
by program in advance.
Output current limiter function, voltage and frequency upper limit and lower limit
setting functions
The output current is limited within the maximum values that have been set independently for positive
and negative. As for the output voltage and the output frequency, their setting ranges can be
adjustable.
USB interface (USBTMC), RS232 interface are standard equipped
USB interface and RS232 interface are provided for external control, such as from a personal
computer.
Output outlets equipped on front panel (universal type)
Various types of power plugs from around the world can be connected.
Supports worldwide range input power line voltages
Input power factor control (PFC) function for 90 VAC to 250 VAC helps minimize input power line
current.
1.3 Applications
Research, development, and testing of various small-capacity built-in power
source units
Research, development, and testing of various compact consumer electronics
devices
Testing of battery-powered modules

APS-1102A User Manual
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As power source for testing characteristics of relays and switches
As power source for tests included in inspection lines for various devices