Good Will Instrument GKP-2302 User manual

Programmable AC/DC Power Source
GKP-2302
USER MANUAL
GW INSTEK PART NO. 82KP-23020M01
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 Dist., New Taipei City 236, Taiwan.

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 Preface 
Thank you for purchasing our Programmable AC/DC Power Source GKP-2303.
For safe and correct use of the electrical product, please first read "Safety Precautions" on the
next page.
Alert symbols in this manual
This manual uses the following alert symbols. The instructions by these alert symbols shall be
carefully obeyed to ensure equipment operator's safety and prevent damage to equipment.
Equipment handling could result in death or serious injury. This symbol contains information to
avoid such risk.
Equipment handling could result in minor or moderate injury, or property damage. This symbol
contains information to avoid such risk.
This manual consists of the following chapters.
If it is the first time for you to use this product, start with "1. Outline."
1. Outline: Explains the overview, configuration, and features of this product.
2. Preparation before Use: Explains the preparations carried out before installation or
operation.
3. Basic operation: Explains the component names and basic operations.
4. Advanced Operation: Explains the operations more extensively.
5. Description of Screen and Menu: Explains the screen configuration and menu composition.
6. Remote Control: Explains the remote control via communication interface.
7. Options: Explains the available options.
8. Troubleshooting: Explains the remedies when an error message is displayed, or when a
failure is suspected.
9. Maintenance: Explains the methods of storage, repackaging, transportation, and
maintenance.
10. Specifications: Provides the list of specifications of functions and performance.
CAUTION
WARNING

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 Safety Precautions 
For safe use, ensure to obey the following warnings and considerations.
We are not responsible for damage resulting from failure to obey these warnings and
considerations.
This product is an insulation Class I device (with a protective conductor terminal) complying
with the JIS and IEC standards.
Ensure you obey the instructions in this instruction manual.
This instruction manual contains instructions for safe operation and use of this product.
Before using the product, please read this manual first.
All the warning items contained in this instruction manual are intended for preventing risks
that may lead to serious accidents. Ensure to obey them.
Ensure to ground.
This product uses a line filter, which may cause electric shock if the product is not grounded.
To prevent electric shock accidents, connect it to an earth ground so that ground resistance is
100or less.
Check the power supply voltage.
This product operates on the power supply voltage specified in " 2.4 Grounding and Power
Connections ". Before connecting the product to a power supply, make sure that the voltage of
distribution board conforms to the power supply voltage rating of the product.
If you notice anything strange
If this product produces smoke, unusual odor, or strange sound, immediately cut the power to
the product and stop using it.
Should you encounter any anomaly like above, immediately contact us or our agent. Never use
it until the repair is completed.
Do not use in a gaseous atmosphere.
This may pose a risk of explosion or other.
Do not remove the cover.
This product has high-voltage portions inside. Never remove the cover.
When inspection into the inside of the product is needed, never allow anybody to touch the
innards except our certified service engineers.
Do not modify the product.
Never modify the product. Modification to the product may pose a new risk. We may refuse the
repair of a modified product at fault.

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Prevention of electric shock by output voltage
The maximum output of this product is ± 440 V. Be careful to avoid electric shock. Directly
touching the output or changing the cable connection while the output is on may cause electric
shock.
This product weights over 18 kg.
Do not carry it alone, or you may suffer physical injury.
Safety symbols
The following shows the general definitions of the safety symbols used on the product main
unit and in the instruction manual.
Refer to the instruction manual
This notifies the user of potential hazards and indicates that he/she must refer to
the instruction manual.
Electric shock hazard
This indicates that an electric shock may occur under specific conditions.
Protection conductor terminal
This indicates that the terminal needs to be grounded in order to prevent electric
shock accidents.
Before operating the equipment, ensure to connect this terminal to an earth ground
by the "Electric Facilities Technical Standards Type D (100or less)" or a higher
standard.
Warning
This contains information to avoid risks in equipment handling that could
result in loss of life or bodily injury (e.g., electric shock).
Caution
This contains information to avoid damage to the equipment in equipment
handling.
Other symbols
Chassis
This indicates that the terminal (or external conductor for a connector) is connected
to the chassis.
Request about disposal
For environmental preservation, pay attention to the following when you dispose of this
product.
The backlight of the LCD contains mercury.
This product shall be disposed of through an appropriate industrial waste disposer.
CAUTION
WARNING

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Table of Contents
Page
Preface .................................................................................................................................................i
Safety Precautions ...............................................................................................................................ii
List of Figures.....................................................................................................................................ix
List of Tables ......................................................................................................................................xi
1. OUTLINE.......................................................................................................................................1
1.1 Overview ..............................................................................................................................2
1.2 Features ...............................................................................................................................2
2. PREPARATIONS BEFORE USE ........................................................................................................3
2.1 Check Before Use..................................................................................................................4
2.2 About Installation Environment .............................................................................................4
2.3 Precautions for Moving and Transportation ............................................................................6
2.4 Grounding and Power Connections ........................................................................................7
2.5 Output and System Cable Connection ..................................................................................11
2.6 How to Tilt Control Panel ....................................................................................................12
2.7 Simple Operation Check......................................................................................................13
2.8 Calibration..........................................................................................................................16
3. BASIC OPERATION ......................................................................................................................17
3.1 Component Name ..............................................................................................................18
3.1.1 Front ..........................................................................................................................18
3.1.2 Rear............................................................................................................................19
3.1.3 Control Panel ..............................................................................................................20
3.2 Power On/Off .....................................................................................................................21
3.2.1 Before Turning on the Power........................................................................................21
3.2.2 Power On....................................................................................................................21
3.2.3 Screen Display and Operations at Starting Up...............................................................21
3.2.4 The Settings Loaded after Startup ................................................................................22
3.2.5 Checking the Rated Power............................................................................................22
3.2.6 Power Off....................................................................................................................22
3.3 Basic Key Operations ..........................................................................................................23
3.3.1 Changing the Output Function (Continuous Output/Sequence/Simulation) ................23
3.3.2 Item Selection .............................................................................................................23
3.3.3 Using Soft-keys ...........................................................................................................24
3.3.4 Closing Windows.........................................................................................................25
3.3.5 Entering Values (Numerical Entry Box) .........................................................................26
3.3.6 Entering Strings (Character String Entry Box) ................................................................27
3.3.7 Using Shortcut Operations (SHIFT Key) .......................................................................27
3.4 Using the Continuous Function ...........................................................................................28

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3.4.1 Setting the AC/DC Mode and the Signal Source ............................................................28
3.4.2 Setting the Output Range ............................................................................................32
3.4.3 Setting Waveforms ......................................................................................................33
3.4.4 Setting the Output Voltage (Single-phase Output).........................................................35
3.4.5 Setting the Output Frequency ......................................................................................37
3.4.6 Setting the Output On/Off Phase .................................................................................37
3.4.7 Turning the Output On or Off ......................................................................................38
3.4.8 Using the Measurement Function ................................................................................38
3.4.9 Switching the Display Format (RMS/AVG/Peak) of the Measured Value .........................39
3.4.10 Enlarge Display Letters for the Measured Value.............................................................41
3.4.11 Clearing the Output Current Peak-hold Value ................................................................43
4. ADVANCED OPERATION .............................................................................................................47
4.1 Using the Limiter, Setting the Limiter ...................................................................................48
4.1.1 Use the Peak Current Limiter .......................................................................................48
4.1.2 Using the RMS Current Limiter ....................................................................................50
4.1.3 Using the Voltage Setting Range Limit ..........................................................................51
4.1.4 Using the Frequency Setting Range Limit ......................................................................53
4.1.5 About the Wattage Limiter ...........................................................................................54
4.2 Using the Sequence Function ..............................................................................................55
4.2.1 Basics .........................................................................................................................55
4.2.2 Sequence Function Parameters ....................................................................................57
4.2.3 Example of Output Using Sequence Function ...............................................................60
4.2.4 Process Flow in a Step .................................................................................................61
4.2.5 Edit a Sequence...........................................................................................................62
4.2.6 Load a Sequence .........................................................................................................64
4.2.7 Execute a Sequence .....................................................................................................67
4.2.8 Save a Sequence..........................................................................................................71
4.2.9 Clear/Rename Sequence ..............................................................................................75
4.2.10 Set so as the Sequence Function is Selected at Power-on...............................................79
4.2.11 Sequence Control by External Control ...........................................................................80
4.2.12 Screen Overview..........................................................................................................80
4.3 Using Power Fluctuation Testing (Simulation) Function ........................................................82
4.3.1 Basics .........................................................................................................................82
4.3.2 Simulation Function Parameters ..................................................................................83
4.3.3 Output Examples Using Simulation Function................................................................85
4.3.4 Process Flow in a Step .................................................................................................87
4.3.5 Editing Simulation.......................................................................................................88
4.3.6 Loading a Simulation...................................................................................................90
4.3.7 Executing Simulation ...................................................................................................94
4.3.8 Saving Simulation .......................................................................................................96
4.3.9 Clear/Rename Simulation ..........................................................................................100
4.3.10 Set so as the Simulation Function is Selected at Power-on...........................................104

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4.3.11 Simulation Control by External Control .......................................................................104
4.3.12 Screen Overview........................................................................................................105
4.4 Measuring Harmonic Current ............................................................................................106
4.4.1 Harmonic current......................................................................................................106
4.4.2 Basics .......................................................................................................................107
4.4.3 Measured Value Display Method ................................................................................107
4.5 Measuring Inrush Current .................................................................................................108
4.5.1 Inrush Current ..........................................................................................................108
4.5.2 Basics .......................................................................................................................109
4.5.3 Measurement Method ...............................................................................................109
4.5.4 Measurement Tips ....................................................................................................110
4.6 Using Clipped Sine Wave...................................................................................................110
4.7 Outputting Arbitrary Waveform..........................................................................................114
4.7.1 Basics .......................................................................................................................114
4.7.2 Arbitrary Waveform Creation Procedure ......................................................................114
4.7.3 Arbitrary Waveform Creation Example ........................................................................114
4.7.4 Transferring Arbitrary Waveform ................................................................................114
4.7.5 Outputting Arbitrary Waveform ..................................................................................118
4.8 Using Memory Function ....................................................................................................119
4.8.1 Basic Setting Memory................................................................................................120
4.8.2 Arbitrary Waveform Memory ......................................................................................128
4.8.3 Sequence Memory .....................................................................................................132
4.8.4 Simulation Memory ...................................................................................................133
4.9 Using USB Memory Function ............................................................................................134
4.10 Using Monitor Function ....................................................................................................135
4.11 Using Remote Sensing Function ........................................................................................137
4.12 Using AGC Function .........................................................................................................139
4.13 Using Autocal Function .....................................................................................................142
4.14 Adjusting DC Offset ..........................................................................................................146
4.15 Using as DC Power Supply ................................................................................................147
4.16 Setting Voltage using External DC Input Signal ...................................................................148
4.16.1 Using External Signal in AC-VCA Mode.......................................................................149
4.16.2 Using External Signal in DC-VCA Mode ......................................................................151
4.17 Control Using External Control Function ............................................................................152
4.18 Synchronizing the Output Frequency with the Power Line or the External Signal ...................157
4.19 Amplifying the External Signal Input .................................................................................158
4.20 Turning the Output On or Off Rapidly ................................................................................160
4.21 Enabling Automatic Output-On at Power-On......................................................................161
4.22 Using the Emission CO2Calculator ....................................................................................163
4.23 Power Unit Energization Setting (Using Under the Restricted Rated Power) .........................164
4.24 Key Lock ...........................................................................................................................167
4.25 Beep ................................................................................................................................167

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4.26 Changing the Background Color and the Contrast of the Screen ..........................................168
4.27 Restoring to the Factory Default Setting (Reset)..................................................................169
5. DESCRIPTION OF SCREEN AND MENU.....................................................................................173
5.1 Screen Configuration.........................................................................................................174
5.1.1 Status Icon................................................................................................................175
5.1.2 Measured Value Display Items ...................................................................................176
5.1.3 Output Setting Display Items .....................................................................................176
5.1.4 Warning and Error Display .........................................................................................177
5.2 Menu Composition ...........................................................................................................177
5.2.1 Menus of the Continuous Function ............................................................................177
5.2.2 Menus of the Sequence Function ...............................................................................178
5.2.3 Menus of the Simulation Function .............................................................................179
5.2.4 Menus of the Memory Function .................................................................................179
5.2.5 System Menus ..........................................................................................................180
6. REMOTE CONTROL...................................................................................................................181
6.1 Communication Interface ..................................................................................................182
6.1.1 USB ..........................................................................................................................182
6.1.2 RS232 .......................................................................................................................184
6.1.3 GPIB.........................................................................................................................186
6.2 Remote/Local State Switching ...........................................................................................188
6.2.1 Remote State ............................................................................................................188
6.2.2 Local State ................................................................................................................188
7. TROUBLESHOOTING ................................................................................................................189
7.1 Error Messages and Error Handling ...................................................................................190
7.1.1 Error Message Screen ................................................................................................190
7.1.2 If An Error Message is Displayed ................................................................................190
7.1.3 If An Error Occurs Repeatedly ....................................................................................191
7.1.4 Protection Operation Types .......................................................................................192
7.1.5 Error Message List ....................................................................................................193
7.2 When a Failure is Suspected ..............................................................................................196
8. MAINTENANCE.........................................................................................................................203
8.1 Preface .............................................................................................................................204
8.2 Daily Maintenance ............................................................................................................204
8.3 Storage, Repackaging, Transportation ................................................................................206
8.4 Checking Firmware Version ...............................................................................................206
9. SPECIFICATIONS .......................................................................................................................209
9.1 Output Function ...............................................................................................................210
9.2 Output Range ...................................................................................................................210
9.3 AC/DC Mode ....................................................................................................................210
9.4 Signal Source....................................................................................................................211
9.5 AC Output ........................................................................................................................212
9.6 DC Output........................................................................................................................213

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9.7 Output Voltage Stability ....................................................................................................214
9.8 Distortion of Output Voltage Waveform .............................................................................214
9.9 Power Input......................................................................................................................214
9.10 Withstand Voltage and Insulation Resistance .....................................................................215
9.11 Measurement Function .....................................................................................................215
9.12 Power Unit Energization Setting ........................................................................................217
9.13 Current Limiter .................................................................................................................218
9.14 Setting Range Limit Function.............................................................................................218
9.15 Remote Sensing................................................................................................................219
9.16 AGC .................................................................................................................................219
9.17 Autocal (Output Voltage Compensation)............................................................................220
9.18 Sequence..........................................................................................................................221
9.19 Simulation........................................................................................................................221
9.20 Clipped Sine Wave ............................................................................................................222
9.21 Arbitrary Wave ..................................................................................................................223
9.22 External Signal Input .........................................................................................................223
9.22.1 External Synchronous Signal Input (Signal Source SYNC only) .....................................223
9.22.2 Voltage Setting Signal Input (Signal Source VCA only).................................................223
9.22.3 External Signal Input (only EXT and ADD) ..................................................................224
9.23 General Function ..............................................................................................................224
9.24 Memory Function..............................................................................................................225
9.25 Self-diagnosis/Protection Function ....................................................................................226
9.26 External Control I/O ..........................................................................................................227
9.27 External Interface ..............................................................................................................227
9.28 USB Memory Interface ......................................................................................................228
9.29 Waveform Monitor Output ................................................................................................228
9.30 Safety and EMC ................................................................................................................229
9.31 Operation Environment.....................................................................................................229
9.32 Externals, Weight, and Terminal Block ................................................................................230
9.33 Option .............................................................................................................................230
9.34 Outline Dimensional Drawing ...........................................................................................231
Index...............................................................................................................................................232