GW Instek PSU Series User Manual
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GW Instek PSU Series User Manual

Programmable dc power supply
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Programmable DC Power Supply
PSU Series
USER MANUAL
ISO-9001 CERTIFIED MANUFACTURER

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  • Page 1 Programmable DC Power Supply PSU Series USER MANUAL ISO-9001 CERTIFIED MANUFACTURER...
  • Page 2 This manual contains proprietary information, which is protected by copyright. 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.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Table of Contents SAFETY INSTRUCTIONS ..........5 GETTING STARTED ............9 PSU Series Overview..........10 Appearance .............. 15 Theory of Operation ..........23 OPERATION ..............34 Set Up ..............36 Basic Operation ............49 Parallel / Series Operation ........67 Test Scripts ..............
  • Page 4 PSU Series User Manual PSU Dimensions ............ 207 Certificate Of Compliance ........209 INDEX ................210...

  • Page 5: Safety Instructions

    SAFETY INSTRUCTIONS AFETY INSTRUCTIONS This chapter contains important safety instructions that you must follow during operation and storage. Read the following before any operation to insure your safety and to keep the instrument in the best possible condition. Safety Symbols These safety symbols may appear in this manual or on the instrument.
  • Page 6 PSU Series User Manual Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Safety Guidelines Do not place any heavy object on the PSU.
  • Page 7 SAFETY INSTRUCTIONS Disconnect the power cord before cleaning. Cleaning the PSU  Use a soft cloth dampened in a solution of mild  detergent and water. Do not spray any liquid. Do not use chemicals containing harsh material  such as benzene, toluene, xylene, and acetone. Location: Indoor, no direct sunlight, dust free, Operation ...
  • Page 8 PSU Series User Manual Power cord for the United Kingdom When using the power supply in the United Kingdom, make sure the power cord meets the following safety instructions. NOTE: This lead/appliance must only be wired by competent persons WARNING: THIS APPLIANCE MUST BE EARTHED...

  • Page 9: Getting Started

    Main Features ................... 11 Accessories ..................12 Appearance .............. 15 PSU Series Front Panel ..............15 PSU Series Display and Operation Panel ........18 Rear Panel ..................20 Theory of Operation ..........23 Operating Area Description ............23 CC and CV Mode ................24 Slew Rate ...................

  • Page 10: Psu Series Overview

    PSU Series User Manual PSU Series Overview Series lineup The PSU series consists of 15 models, covering a number of different current, voltage and power capacities: Model name Voltage Rating Current Rating Power PSU 6-200 200A 1200W PSU 8-180 180A 1440W PSU 12.5-120...

  • Page 11: Main Features

    GETTING STARTED Main Features High power density: 1500W in 1U Performance  Universal input voltage 85~265Vac, continuous  operation. Output voltage up to 600V, current up to 200A.  Active power factor correction. Features  Parallel master/slave operation with active ...

  • Page 12: Accessories

    PSU Series User Manual Accessories Before using the PSU power supply unit, check the package contents to make sure all the standard accessories are included. Standard Part number Description Qty. Accessories Output terminal cover Analog connector plug kit Output terminal M8 bolt set...
  • Page 13 GETTING STARTED Optional Part number Description Accessories PSU-01C Cable for 2 units of PSU-Series in parallel mode connection PSU-01B Bus Bar for 2 units of PSU-Series in parallel mode connection PSU-01A Joins a vertical stack of 2 PSU units together. 2U-sized handles x2, joining plates x2.
  • Page 14 PSU Series User Manual GRM-001 Rack-mount slides (General Devices P/N: C-300-S-116-RH-LH) GTL-246 USB Cable 2.0-A-B Type, Approx. 1.2M GPW-001 Power Cord SJT 12AWG/3C, 3m MAX Length, 105 ºC, RNB5-5*3P UL/CSA type GPW-002 Power Cord H05W-F 1.5mm /3C, 3m MAX Length, 105 ºC, RNB5-5*3P VDE...

  • Page 15: Appearance

    GETTING STARTED Appearance PSU Series Front Panel Display Area Voltage Current DC Power Supply 0 - 40 V / 0 - 38A PSU 40-38 VOLTAGE CURRENT Shift Lock/ Local PROT Function Test Output : Long Push Unlock ALM_CLR 9 10 12 13 Used to turn the power on/off.
  • Page 16 PSU Series User Manual Used to lock all front panel Lock/Local Lock/Local buttons other than the Output Button Button or it switches to local Unlock mode. (Long push) Used to unlock the Unlock front panel buttons. Button Used to set and display OVP, OCP...
  • Page 17 GETTING STARTED Used to enable the functions that 11. Shift Button Shift are written in blue characters below certain buttons. Used to turn the output on or off. 12. Output Output Button Lights in green when the output is 13. Output ON...

  • Page 18: Psu Series Display And Operation Panel

    PSU Series User Manual PSU Series Display and Operation Panel Display Area VOLTAGE CURRENT Displays the voltage or the parameter number of a 14. Voltage Function parameter. Meter Displays the current or the value of a Function 15. Current parameter.
  • Page 19 GETTING STARTED Lights up when CC Slew Rate Priority is enabled. 24. ISR LED Lights in green when the memory value are being 25. M1 LED recalled or saved. Lights in green when the memory value are being 26. M2 LED recalled or saved.

  • Page 20: Rear Panel

    PSU Series User Manual Rear Panel ISOLATED PROGRAMMING 4 – 20mA ISOLATED PROGRAMMING 0 – 5V / 0 – 10V 6-60V models: PSU 6-200, 8-180, 12.5-120, 15-100, 20-76, 30-50, 40-38, 50-30, 60-25 DC OUTPUT RS485 / 232 ANALOG PROGRAMMING 240V...
  • Page 21 GETTING STARTED RS 485 / 232 Ethernet port for controlling the PSU remotely. RS 485 / 232 Two different types of cables can Remote-IN be used for RS232 or RS485-based remote control. PSU-232: RS232 cable with DB9 connector kit. PSU-485: RS485 cable with DB9 connector kit.
  • Page 22 PSU Series User Manual Connectors for grounding the output (two 10. Ground positions, shown in red). Screw 240V 47 63Hz 2000VA MAX. AC INPUT...

  • Page 23: Theory Of Operation

    Below is a comparison of the operating areas of each power supply. PSU Series Operating Area (6-80V models) PSU 80-19 PSU 60-25 PSU 50-30 PSU 40-38...

  • Page 24: Cc And Cv Mode

    PSU Series User Manual PSU Series Operating Area (100-600V models) PSU 600-2.6 PSU 400-3.8 PSU 300-5 PSU 150-10 PSU 100-15 Current (A) CC and CV Mode When the power supply is operating in constant CC and CV mode Description current mode (CC) a constant current will be supplied to the load.
  • Page 25 GETTING STARTED resistance (R ) and the critical resistance (R ). The critical resistance is determined by V . The power supply will operate in CV mode when the load resistance is greater than the critical resistance. This means that the voltage output will be equal to the V voltage but the current will be less than I...

  • Page 26: Slew Rate

    PSU Series User Manual Slew Rate The PSU has selectable slew rates for CC and CV Theory mode. This gives the PSU power supply the ability to limit the current/voltage draw of the power supply. Slew rate settings are divided into High Speed Priority and Slew Rate Priority.

  • Page 27: Internal Resistance

    GETTING STARTED be potentially hazardous. In addition, bleed resistors also allow for smoother voltage regulation of the power supply as the bleed resistor acts as a minimum voltage load. The bleed resistance can be turned on or off using the configuration settings. By default the bleed resistance is on.

  • Page 28: Alarms

    PSU Series User Manual PSU 100-15 0.000 ~ 6.667Ω PSU 150-10 0.00 ~ 15.00Ω PSU 300-5 0.00 ~ 60.00Ω PSU 400-3.8 0.0 ~ 105.3Ω PSU 600-2.6 0.0 ~ 230.8Ω Alarms The PSU power supplies have a number of protection features.

  • Page 29: Considerations

    RPMs drop to an abnormally low level. Force Shutdown is not activated as a result of the Shutdown PSU series detecting an error. It is a function that is used to turn the output off through the application of a signal from the rear-panel analog control connector when an abnormal condition occurs.
  • Page 30 PSU Series User Manual ammeter only indicates mean current values, which means for pulsed current loads, the actual current can exceed the indicated value. For pulsed loads, the current limit must be increased, or a power supply with a greater capacity must be chosen.

  • Page 31: Grounding

    GETTING STARTED When the power supply is connected to a load Reverse Current: such as a battery, reverse current may flow back to Accumulative energy. the power supply. To prevent damage to the power supply, use a reverse-current-protection diode in series between the power supply and load.
  • Page 32 PSU Series User Manual Analog connector Ext-V Load Ext-R ≥ ) Insulation capacity isolation voltage of power supply If the insulation capacity of the load and load cables WARNING are not greater than the isolation voltage of the power supply, electric shock may occur.
  • Page 33 GETTING STARTED Ground Example of grounded output terminals For models PSU 6-200, 8-180, 12.5-120, 15-100, 20-76, 30-50, 40-38, 50-30, 60-25 Ground For models PSU 80-19, 100-15, 150-10, 300-5, 400-3.8, 600-2.6...
  • Page 34 PSU Series User Manual PERATION Set Up ..............36 Line Voltage Connection ..............36 Power Up ................... 38 Wire Gauge Considerations ............39 Output Terminals ................40 Using the Output Terminal Cover ..........42 Using the Rack Mount Kit ............. 43 How to Use the Instrument ............

  • Page 35: Operation

    OPERATION Load Test Script from USB ............88 Run Test Script ................. 89 Export Test Script to USB ............. 90 Remove Test Script ................. 91...

  • Page 36: Set Up

    PSU Series User Manual Set Up Line Voltage Connection The PSU power supplies use a universal power Background input that can be used with 100 and 240 Vac systems. To connect or replace the power cord (user supplied, specification below), use the...
  • Page 37 OPERATION 2. Unscrew the power cord protective sheath. 3. Remove the 2 screws holding the power cord cover and remove. 4. Remove the AC power cord wires with a flat head screwdriver. GND: Green or Green and Yellow L: Black or Brown 2-M3x6L N: White or Blue Pan Head Screw...

  • Page 38: Power Up

    PSU Series User Manual Power Up 1. Connect the power cord to the Steps Page 36 universal power input. 2. Press the POWER switch on. 3. The power supply will show the Power On settings (Pon) at start up. If no Power On...

  • Page 39: Wire Gauge Considerations

    OPERATION Wire Gauge Considerations Before connecting the output terminals to a load, Background the wire gauge of the cables should be considered. It is essential that the current capacity of the load cables is adequate. The rating of the cables must equal or exceed the maximum current rated output of the instrument.

  • Page 40: Output Terminals

    PSU Series User Manual the sense leads may be necessary in high noise environments. Where shielding is used, connect the shield to the chassis via the rear panel ground screw. Even if noise is not a concern, the load and...
  • Page 41 OPERATION 3. If necessary, connect the chassis Page 31 ground terminal to either the positive or negative terminal. See the grounding chapter for details. 4. Choose a suitable wire gauge and Page 39 crimping terminal for the load cables. 5. Connect the positive load cable to the positive output terminal and the negative cable to the negative output terminal.

  • Page 42: Using The Output Terminal Cover

    PSU Series User Manual Using the Output Terminal Cover 1. Partially unscrew the 2 screws beside the Steps terminals. 2. Line-up the notches in the cover with the 2 screws. 3. Tighten the screws to secure the cover over the terminals.

  • Page 43: Using The Rack Mount Kit

    OPERATION Using the Rack Mount Kit The PSU series are designed to be directly Background mounted into 19 inch 1U rack mounts. The PSU can be installed using the sliding mounts (GW Part number: GRM-001). See the GRM-001 manual for installation instructions.
  • Page 44 PSU Series User Manual Use the Voltage knob to set a voltage of 10.05 Example volts. 1. Repeatedly press the Voltage knob until the least significant digit is Voltage highlighted. This will allow the voltage to be edited in 0.01 volt steps.

  • Page 45: Reset To Factory Default Settings

    OPERATION Reset to Factory Default Settings The F-88 configuration setting allows the PSU to Background be reset back to the factory default settings. See page 194 for the default factory settings. 1. Press the Function key. The Function Steps Function key will light up.

  • Page 46: View System Version And Build Date

    PSU Series User Manual View System Version and Build Date The F-89 configuration setting allows you to view Background the PSU version number, build date, keyboard version, analog-control version, kernel build, test command version and test command build date. 1. Press the Function key. The...
  • Page 47 OPERATION C-XX: Kernel Build On-Year. (1/2) D-XX: Kernel Build On-Year. (2/2) E -XX: Kernel Build On-Month. F-XX: Kernel Build On-Day. G-XX: Test Command Version. (1/2) H-XX: Test Command Version. (2/2) I-XX: Test Command Build On-Year. (1/2) J-XX: Test Command Build On-Year. (2/2) K-XX: Test Command Build On-Month.
  • Page 48 PSU Series User Manual A-02: Analog FPGA Version. B-41: Analog FPGA Version. Kernel Version: 2013/01/22 Example C-20: Kernel Build On-Year. D-13: Kernel Build On-Year. E-01: Kernel Build On-Month. F-22: Kernel Build On-Day. Test Command Version: V01:00, 2013/06/01 Example G-01: Test Command Version.

  • Page 49: Basic Operation

    OPERATION Basic Operation This section describes the basic operations required to operate the power supply. Setting OVP/OCP/UVL → from page 49  C.V. priority mode → from page 52  C.C. priority mode → from page 56  Panel lock → page 59 ...
  • Page 50 PSU Series User Manual VOLTAGE CURRENT Example: OVP alarm Before setting the protection settings: Ensure the load is not connected.  Ensure the output is turned off.  You can use the Function settings (F-13 and F-14) to Note apply limits to the voltage and current settings, respectively.
  • Page 51 OPERATION 2. The OVP protection function will be displayed on the voltage display and the setting will be displayed on the current display. VOLTAGE CURRENT Protection Protection function setting 3. Use the Voltage knob to select a Choose a Voltage protection function.

  • Page 52: Set To C.v. Priority Mode

    PSU Series User Manual 5. Press PROT again to exit. The PROT PROT key light will turn off. The OVP, OCP or UVL protection can Clear PROT be cleared after it has been tripped by OVP/OCP/UVL protection holding the ALM_CLR button for 3 ALM_CLR seconds.
  • Page 53 OPERATION 3. Rotate the Voltage knob to change Voltage the F setting to F-03 (V-I Mode Slew Rate Select). 4. Use the Current knob to set the F-03 Current setting. Set F-03 to 0 (CV High Speed Priority) or 2 (CV Slew Rate Priority). 0 = CV High Speed Priority F-03 2 = CV Slew Rate Priority...
  • Page 54 PSU Series User Manual F-04 / F-05 0.001V~0.060V/msec (PSU 6-200) 0.001V~0.080V/msec (PSU 8-180) 0.001V~0.125V/msec (PSU 12.5-120) 0.001V~0.150V/msec (PSU 15-100) 0.001V~0.200V/msec (PSU 20-76) 0.001V~0.300V/msec (PSU 30-50) 0.001V~0.400V/msec (PSU 40-38) 0.001V~0.500V/msec (PSU 50-30) 0.001V~0.600V/msec (PSU 60-25) 0.001V~0.800V/msec (PSU 80-19) 0.001V~1.000V/msec (PSU 100-15) 0.001V~1.500V/msec (PSU 150-10)
  • Page 55 OPERATION CV will become illuminated (center) VOLTAGE CURRENT Only the voltage level can be altered when the output Note is on. The current level can only be changed by pressing the Set key. For more information on the Normal Function Settings, see page 101.

  • Page 56: Set To C.c. Priority Mode

    PSU Series User Manual Set to C.C. Priority Mode When setting the power supply to constant current mode, a voltage limit must also be set to determine the crossover point. When the voltage exceeds the crossover point, the mode switches to C.V.
  • Page 57 OPERATION 1 = CC High Speed Priority F-03 3 = CC Slew Rate Priority 5. Press the Voltage knob to save the configuration setting. ConF will be Voltage displayed when it is configuring. VOLTAGE CURRENT ISR indicator for CC Slew Rate Priority (F-03=3) 6.
  • Page 58 PSU Series User Manual 8. Use the Voltage knob to set the Voltage voltage limit (crossover point). 9. Use the Current knob to set the Current current. Notice the Set key becomes illuminated when setting Note the current or voltage. If the Voltage or Current knobs are unresponsive, press the Set key first.

  • Page 59: Panel Lock

    OPERATION Panel Lock The panel lock feature prevents settings from being changed accidentally. When activated, the Lock/Local key will become illuminated and all keys and knobs except the Lock/Local key and Output key (if active) will be disabled. If the instrument is remotely controlled via the USB/LAN interface, the panel lock is automatically enabled.

  • Page 60: Recall Setup

    PSU Series User Manual 13. When the setup is saved the unit will beep, the setup will be saved and the memory number will be shown on the display. VOLTAGE CURRENT Saved setup Recall Setup The PSU has 3 dedicated keys (M1, M2, M3) to recall setups.

  • Page 61: Voltage Sense

    OPERATION Voltage Sense The PSU power supplies can be operated using local or remote voltage sense. By default the PSU ships configured for local sense. Remote Sense Connector The Remote Sense connector includes a detachable plug to facilitate making the sense connections. The remote sense connector also has a safety cover.

  • Page 62: Remote Sense Cover

    PSU Series User Manual Remote Sense Cover Ensure the output is off before handling the remote WARNING sense connector. Use sense cables with a voltage rating exceeding the isolation voltage of the power supply. Never connect sensing cables when the output is on.

  • Page 63: Local Sense

    OPERATION Local Sense When using local sense, the sensing terminals are connected to the local sense terminals (via the local sense connections) and thus do not compensate for any possible voltage drop that is seen on the load cables. Local sense is only recommended when the voltage drop is of no consequence or for load-current applications.
  • Page 64 PSU Series User Manual Ensure the output is off before connecting any sense WARNING cables. Use sense cables with a voltage rating exceeding the isolation voltage of the power supply. Never connect sensing cables when the output is on. Electric shock or damage to the power supply could result.
  • Page 65 OPERATION Page 61 PSU #1 Load Output Input Output Input PSU #2 Output Output 2. Operate the instrument as normal. Page 68 See the Parallel Operation chapter for details. Serial PSU Units 1. a. Connect the 1 S+ terminal to the positive potential of the load.
  • Page 66 PSU Series User Manual Page 61 PSU #1 Load Output Input Output Input PSU #2 Output Output 2. Operate the instrument as normal. Page 77 See the Serial Operation chapter for details. To help to minimize the oscillation due to the...

  • Page 67: Parallel / Series Operation

    Parallel / Series Operation This section describes the basic operations required to operate the power supply in series or parallel. Operating the PSU series in parallel increases the total current output of the power supply units. When used in series, the total output voltage of the power supplies can be increased.

  • Page 68: Master-Slave Parallel Overview

    PSU Series User Manual Master-Slave Parallel Overview When connecting the PSU power supplies in Background parallel, up to 4 units can be used in parallel and all units must be of the same model with similar output settings. To use the power supplies in parallel, units must be used in a “master-slave”...
  • Page 69 OPERATION Ext-V Ext-R Master VMON IMON Slave Load Slave Slave Display Limitations Only the master unit will display the voltage  and current. OVP/ OCP/UVL Slave units follow the settings of the master  when OVP/OCP/UVL is tripped on the master unit.
  • Page 70 PSU Series User Manual Parallel Calibration The parallel calibration function can be used to  offset cables losses. External Voltage and Resistance Control Voltage/Resistance controlled remote control  can only be used with the master unit. The full scale current (in parallel) is equivalent ...

  • Page 71: Master-Slave Parallel Connection

    OPERATION PSU 30-50 100A 150A 200A PSU 40-38 114A 152A PSU 50-30 120A PSU 60-25 100A PSU 80-19 PSU 100-15 100V 100V 100V 100V PSU 150-10 150V 150V 150V 150V PSU 300-5 300V 300V 300V 300V PSU 400-3.8 400V 400V 400V 400V 3.8A...
  • Page 72 PSU Series User Manual MASTER SLAVE #1 PRL OUT+ PRL IN+ A COM PRL IN- Status COM1 A COM OUT ON Status OUT ON/OFF CONT Current SUM Current Sum Alarm Status Alarm_Status Shut_Down Shut_Down A COM OUT ON Status Status COM1...
  • Page 73 OPERATION After the power supplies are connected in  parallel, if you want to use the analog connector Note to control the power supplies, you must disassemble the cable of the master and then wire it yourself for control. Pin signal diagram is as shown below. MASTER EXT-V/R CV CONT A COM...
  • Page 74 PSU Series User Manual Example with Load Master negative terminal Output Input connected to Output Input ground Ground Slave #1 Output Output Ground Slave #2 Output Output Ground 1. Ensure the power is off on all power supplies. Steps 2. Choose a master and a slave unit(s).

  • Page 75: Master-Slave Parallel Operation

    OPERATION Master-Slave Parallel Operation Before using the power supplies in parallel, the Master-Slave master and slave units need to be configured. Configuration 1. Configure the OVP, OCP and ULV Steps Page 49 settings for the master unit. 2. For each unit, hold the Function key while turning the power on to enter the power on configuration settings.
  • Page 76 PSU Series User Manual Only operate the power supplies in parallel if the Master-Slave units are configured correctly. Operation 1. Turn on the master and slave units. The slave Steps unit(s) will show a blank display. Master unit VOLTAGE CURRENT...

  • Page 77: Master-Slave Parallel Calibration

    OPERATION Master-Slave Parallel Calibration The F-16 function setting can be used to calibrate Master-Slave the output of PSU units connected in parallel. Configuration If you feel the accuracy is not good enough when you measure the accuracy in parallel mode, the parallel calibration can be used to get better measurement accuracy.
  • Page 78 PSU Series User Manual 5. On the master unit, set F-16 (Auto Page 104 Calibration Parallel Control) to 2 to turn on the parallel calibration. Calibration will begin immediately. 6. Whilst calibration is being performed, WAIT will be displayed on the master screen.

  • Page 79: Master-Slave Series Overview

    OPERATION Master-Slave Series Overview When connecting PSU power supplies in series, up Background to 2 units can be used in series and all units must be of the same model. When operated in series, the power supplies can be used to increase the voltage output or setup the power supplies to output both positive and negative polarities.
  • Page 80 PSU Series User Manual Remote monitoring Voltage monitoring (VMON) and current  monitoring (IMON) should be performed on both units. The VMON voltage represents the voltage of  that particular unit. Remote Sense Please see the voltage sense chapter for details, ...

  • Page 81: Series Connection

    OPERATION Series Connection If using the PSU in series, please be aware that each unit acts independently and thus there are no special communication buses for serial connections. Series Connection Load Unit #1 to increase Output Input Voltage Output Output Input Ground Unit #2...

  • Page 82: Series Operation

    PSU Series User Manual The output reference ground (COMMON) can be Note grounded at the power supply side instead of the load, depending on the requirements. Local sensing should be used in this configuration. When connecting the units in series, diodes should be...
  • Page 83 OPERATION 2. For each unit, hold the Function key while turning the power on to enter the power on configuration settings. Voltage Current DC Power Supply PSU 40-38 0 - 40V / 0 - 38A VOLTAGE CURRENT Lock/Local PROT Function Test Shift Output...
  • Page 84 PSU Series User Manual 2. Operation of both units is the same Page 49 as for a single unit. Each unit will only draw as much power as is programmed. Please see the basic operation chapter for details. 3. Press the Output key on Output each unit to begin.

  • Page 85: Test Scripts

    The PSU test function can store ten test scripts in memory. Each test script is programmed in a scripting language. For more information on how to create test scripts, please contact GW Instek. Test script file format→ from page 86 ...

  • Page 86: Test Script File Format

    PSU Series User Manual Test Script File Format The test files are saved in *.tst file format. Background Each file is saved as tXXX.tst, where XXX is the save file number 001~010. Test Script Settings Runs the chosen test script from the internal Test Run memory.

  • Page 87: Setting The Test Script Settings

    OPERATION Setting the Test Script Settings The test script settings (T-01~T-10) are set with the Steps Test key. 1. Press the Test key. The Test key TEST will light up. 2. The display will show T-01 on the left and the memory no.

  • Page 88: Load Test Script From Usb

    PSU Series User Manual 4. Rotate the Current knob to choose a Current memory number. (Excluding T-05) 1~10 Range 5. Press the Voltage knob to complete the setting. Voltage Press the Test key again to exit the Test Exit TEST settings.

  • Page 89: Run Test Script

    OPERATION 2. Turn on the power. MS ON (Mass Storage) will be displayed on the screen after a few seconds if the USB drive is recognized. Conversely, MS OFF will be displayed if removed. VOLTAGE CURRENT If the USB drive is not recognized, check to see that Note the function settings for F-20 = 1 (page 104).

  • Page 90: Export Test Script To Usb

    PSU Series User Manual 2. Configure T-01 (Run Test) to 1~10 Page 87 (save memory slot no. to run) T-01 range 1~10 3. The test script will automatically start to run. Error messages: If you try to run a test script from an Note empty memory location “Err 003”...

  • Page 91: Remove Test Script

    OPERATION 2. Turn on the power. MS (Mass Storage) will be displayed on the screen after a few seconds if the USB drive is recognized. VOLTAGE CURRENT If the USB drive is not recognized, check to see that Note the function settings for F-20 = 1 (page 103). If not, reinsert the USB flash drive.
  • Page 92 PSU Series User Manual 2. The test script will be removed from the internal memory. OK will be displayed when completed. Error messages: If you try to remove a test script from Note an empty memory location “Err 003” will be displayed on the display.

  • Page 93: Configuration

    CONFIGURATION ONFIGURATION Configuration Overview ........... 94 Configuration Table ................ 94 Normal Function Settings ............101 Interface Configuration Settings ..........104 USB / GPIB Settings ............104 LAN Settings ..............105 UART Settings ..............107 System Settings ................108 Power On Configuration Settings ..........109 Trigger Input and Output Configuration Settings ....

  • Page 94: Configuration Overview

    PSU Series User Manual Configuration Overview Configuration of the PSU power supplies is divided into five different configuration settings: Normal Function, USB/GPIB, LAN, UART, System Configuration Settings, Power ON Configuration, Trigger Input/Output Configuration Settings and Special Function Settings. Power ON Configuration differs from the other settings in that the settings used with Power ON Configuration settings can only be set during power up.
  • Page 95 CONFIGURATION 0.001~0.600V/msec (PSU 60-25) 0.001~0.800V/msec (PSU 80-19) 0.001~1.000V/msec (PSU 100-15) 0.001~1.500V/msec (PSU 150-10) 0.001~1.500V/msec (PSU 300-5) 0.001~2.000V/msec (PSU 400-3.8) 0.001~2.400V/msec (PSU 600-2.6) 0.001~0.060V/msec (PSU 6-200) 0.001~0.080V/msec (PSU 8-180) 0.001~0.125V/msec (PSU 12.5-120) 0.001~0.150V/msec (PSU 15-100) 0.001~0.200V/msec (PSU 20-76) 0.001~0.300V/msec (PSU 30-50) 0.001~0.400V/msec (PSU 40-38) Falling voltage slew rate F-05 0.001~0.500V/msec (PSU 50-30)
  • Page 96 PSU Series User Manual 0.001~2.000A/msec (PSU 6-200) 0.001~1.800A/msec (PSU 8-180) 0.001~1.200A/msec (PSU 12.5-120) 0.001~1.000A/msec (PSU 15-100) 0.001~0.760A/msec (PSU 20-76) 0.001~0.500A/msec (PSU 30-50) 0.001~0.380A/msec (PSU 40-38) Falling current slew rate F-07 0.001~0.300A/msec (PSU 50-30) 0.001~0.250A/msec (PSU 60-25) 0.001~0.190A/msec (PSU 80-19) 0.001~0.150A/msec (PSU 100-15) 0.001~0.100A/msec (PSU 150-10)
  • Page 97 0 = Disable GPIB, 1 = Enable GPIB Show GPIB available F-25 0 = No GPIB, 1 = GPIB is available status 0 = GW Instek, 1 = TDK GEN, 2 = SCPI Emulation F-26 Agilent 5700, 3 = Kikusui PWX, 4 = AMREL SPS...
  • Page 98 PSU Series User Manual Subnet Mask-4 F-46 0~255 Gateway-1 F-47 0~255 Gateway-2 F-48 0~255 Gateway-3 F-49 0~255 Gateway-4 F-50 0~255 DNS address -1 F-51 0~255 DNS address -2 F-52 0~255 DNS address-3 F-53 0~255 DNS address-4 F-54 0~255 Socket Server...
  • Page 99 CONFIGURATION 0, 1 = Version 2, 3, 4, 5 = Build date (YYYYMMDD) 6, 7 = Keyboard CPLD 8, 9 = Analog Board CPLD A, B = Analog Board FPGA C, D, E, F = Kernel Build Show Version F-89 (YYYYMMDD) G, H = Test Command Version I, J, K, L = Test Command Build...
  • Page 100 PSU Series User Manual External Output Control F-98 0 = OFF, 1 = ON Function Trigger Input and Output Configuration Settings Trigger Input Pulse 0~60ms. 0 = trigger controlled by F100 Width trigger level. 0 = None 1 = Output ON/OFF (refer to F103)

  • Page 101: Normal Function Settings

    CONFIGURATION Normal Function Settings Delays turning the output on for a designated Output ON Delay amount of time. The Delay indicator will light Time when the Delay time is not 0. The Output ON Delay Time setting has a maximum deviation (error) of 20ms.
  • Page 102 PSU Series User Manual Selects High Speed Priority or Slew Rate Priority V-I Mode for CV or CC mode. The voltage or current slew rate can only be edited if CC/CV Slew Rate Priority is selected. The ISR indicator will be lit for CC Slew Rate Priority and the VSR indicator will be lit for CV Slew Rate Priority.
  • Page 103 CONFIGURATION Sets the internal resistance of the power supply. Internal Resistance F-08 0.000Ω ~ X.XXXΩ Settings (Where X.XXX = Rating Voltage / Rating Current) Bleeder control turns ON/OFF the bleeder resistor. Bleeder Control Bleeder resistors discharge the filter capacitors after power is turned off as a safety measure. F-09 0 = OFF, 1 = ON, 2 = AUTO Buzzer ON/OFF Turns the buzzer sound on or off.

  • Page 104: Interface Configuration Settings

    PSU Series User Manual This function performs offset calibration for Auto Calibration parallel control. There must be a short between Parallel Control each unit before starting the calibration. See page 77 for details. F-16 0 = Disable, 1 = Enable, 2 =...

  • Page 105: Lan Settings

    Parameter 2, 3 and 4 are only supported as use stand alone. 0 = GW INSTEK, 1 = TDK GEN, F-26 2 = Agilent N5700, 3 = Kikusui PWX, 4 = AMREL SPS LAN Settings Displays the MAC address in 6 parts.
  • Page 106 PSU Series User Manual Sets the default IP address. IP address 1~4 splits IP Address-1~4 the IP address into four sections. (F-39 : F-40 : F-41 : F-42) (0~255 : 0~255 : 0~255 : 0~255) Subnet Mask 1~4 Sets the subnet mask. The subnet mask is split into four parts.

  • Page 107: Uart Settings

    CONFIGURATION UART Settings Sets the UART mode or disables UART. UART Mode F-70 0 = Disable UART, 1 = RS232, 2= RS485 4W, 3 = RS485 2W UART Baud Rate Sets the UART baud rate. F-71 0 = 1200, 1 = 2400, 2 = 4800, 3 = 9600, 4 = 19200, 5 = 38400, 6 = 57600, 7 = 115200 Sets the number of data bits.

  • Page 108: System Settings

    PSU Series User Manual Sets the master/slave/display-information UART Multi-Drop parameters of a unit when using Multi-Drop control remote control, see page 170 for details. F-77 0 = Disable, 1 = Master, 2 = Slave, 3 = Display Information Displays the Multi-Drop status on the master unit...

  • Page 109: Power On Configuration Settings

    CONFIGURATION E-XX = Kernel build month F-XX = Kernel build day G-XX = Test command version (1/2) H-XX = Test command version (2/2) I-XX = Test command build year (1/2) J-XX = Test command build year (2/2) K-XX = Test command build month L-XX = Test command build day M-XX = Reserved (1/2) N-XX = Reserved (2/2)
  • Page 110 PSU Series User Manual 2 = Control by external resistor - rising 3 = Control by external resistor- falling 4 = Control by isolated board Sets the power supply to turn the output on or off Output Status at power up.

  • Page 111: Trigger Input And Output Configuration Settings

    CONFIGURATION Trigger Input and Output Configuration Settings Sets the trigger input width in milliseconds. If the Trigger Input width is set to 0 then the input trigger is controlled Width by the input active level. F100 0 ~ 60ms. 0 = trigger controlled by trigger level.

  • Page 112: Special Function

    PSU Series User Manual Trigger output pulse width. A setting of 0 will Trigger Output output the active level. Pulse Width F120 0 ~ 60ms. 0 = output active level Sets the active level of the output trigger if the Trigger Output trigger output pulse width (F120) = 0.
  • Page 113 CONFIGURATION Function setting F-89 (Show Version) can only be Note viewed, not edited. Configuration settings F-90~ F-98 cannot be edited in the Normal Function settings. Use the Power On Configuration settings. See page 114 for details. 1. Press the Function key. The Steps Function function key will light up.

  • Page 114: Setting Power On Configuration Settings

    PSU Series User Manual Setting Power On Configuration Settings The Power On Configuration settings can only be Background changed during power up to prevent the configuration settings being inadvertently changed. Ensure the load is not connected.  Ensure the power supply is off.
  • Page 115 CONFIGURATION VOLTAGE CURRENT Cycle the power to save and exit the configuration Exit settings.

  • Page 116: Analog Control

    PSU Series User Manual NALOG CONTROL The Analog Control chapter describes how to control the voltage or current output using an external voltage or resistance, monitor the voltage or current output as well as remotely turning off the output or shutting down the power supply.

  • Page 117: Analog Remote Control Overview

    Like the analog connector, it can also be used to monitor the current and voltage output as well. Use GW Instek part number PSU-ISO-V for voltage control and monitoring, and use PSU-ISO-I for current control and monitoring.
  • Page 118 PSU Series User Manual Analog Control Connector Overview The Analog Control Connector is a 25 pin Overview connector that can be used with the ARC (analog remote control) kit for wiring connections. The connector is used for all analog remote control. The pins used determine what remote control mode is used.
  • Page 119 ANALOG CONTROL Alarm Clear 10 Alarm clear line. Alarms are cleared when a low level TTL signal is applied. A COM 11 This is the common line for the external signal pins 7 to 10, 12, 13, 19, 21, 22, 24, and 25. It is connected internally to the negative output.
  • Page 120 PSU Series User Manual EXT-V/R CV 22 This line uses an external voltage or resistance to CONT control the output voltage. External voltage control (F-90: 1); External resistor control (F-90: 2, F-90: 3). 0 to 5V or 0 to 5kΩ; 0 % to 100 % of the rated output voltage (F-97: 0).

  • Page 121: External Voltage Control Of Voltage Output

    ANALOG CONTROL External Voltage Control of Voltage Output External voltage control of the voltage output is Background accomplished using the analog control connector on the rear panel. There are two external voltage control ranges, 0~5V and 0~10V, depending on the F-97 configuration.
  • Page 122 PSU Series User Manual If the wire shield needs to be grounded at the Connection- alt. voltage source (EXT-V), then the shield cannot also shielding be grounded at the negative (-) terminal output of the PSU power supply. This would short the output.

  • Page 123: External Voltage Control Of Current Output

    ANALOG CONTROL The input impedance for external voltage control is Note 1MΩ. Use a stable voltage supply for the external voltage control. CV and CC Slew Rate Priority are disabled for V-I mode Note (F-03) when using external voltage control. See the normal function settings on page 101.
  • Page 124 PSU Series User Manual When connecting the external voltage source to the Connection connectors, use shielded or twisted paired wiring. EXT-V ＋ Analog connector － 2 core shielded wire or twisted Output pair Terminal Pin23 → EXT-V (-)  Pin21 → EXT-V (+) ...

  • Page 125: External Resistance Control Of Voltage Output

    ANALOG CONTROL 2. Set the F-91 power on Page 114 configuration setting to 1 (CC control – Ext voltage). Be sure to cycle the power after the power on  configuration has been set. 3. Press the Function key and confirm Function the new configuration settings (F-91=1).
  • Page 126 PSU Series User Manual There are two external resistance control ranges, 0~5kΩ and 0~10kΩ, depending on the F-97 configuration. See page 110 for details. The output voltage (0 to full scale) can be controlled with the external resistance rising 0kΩ~5kΩ/0kΩ~10kΩ or falling 5kΩ~0kΩ/10kΩ~0kΩ.
  • Page 127 ANALOG CONTROL EXT-R Connection Analog connector 2 core shielded wire or twisted Output pair Terminal Pin22 → EXT-R  Pin23 → EXT-R  Wire shield → negative (-) output terminal  1. Connect the external resistance according to the Steps connection diagrams above.

  • Page 128: External Resistance Control Of Current Output

    PSU Series User Manual CV and CC Slew Rate Priority are disabled for V-I mode Note (F-03) when using external resistance control. See the normal function settings on page 101. External Resistance Control of Current Output External resistance control of the current output is...
  • Page 129 ANALOG CONTROL The falling resistance configuration is recommended Note for safety reasons. In the event that the cables become accidentaly disconnected, the current output will drop to zero (high Ω). Under similar circumstances using the rising configuration, an unexpectedly high current would be output.

  • Page 130: External Control Of Output

    PSU Series User Manual 4. Press the Output key. The Output current can now be controlled with the External resistance. Ensure the resistor(s) and cables used exceed the Note isolation voltage of the power supply. For example: insulation tubes with a withstand voltage higher than the power supply can be used.
  • Page 131 ANALOG CONTROL Switch Connection Analog connector 2 core shielded wire or twisted Output pair Terminal Pin19 → Switch  Pin20 → Switch  Wire shield → negative (-) output terminal  1. Connect the external switch according to the Steps connection diagrams above.
  • Page 132 PSU Series User Manual When using a switch over long distances, please use a Note switch relay to extend the line from the coil side of the relay. Switch Relay Line Analog connector extension If a single switch control is to be used for multiple...

  • Page 133: External Control Of Shutdown

    ANALOG CONTROL External control of Shutdown The output of the power supplies can be Background configured to shut down via an external switch. The voltage across pins 7 and 20 are internally pulled to +5V ±5% @ 500uA with 10kΩ pull-up resistor.
  • Page 134 PSU Series User Manual When using a switch over long distances, please use a Note switch relay to extend the line from the coil side of the relay. Switch Relay Line Analog connector extension If a single switch control is to be used for multiple Output units, please isolate each instrument.

  • Page 135: Remote Monitoring

    ANALOG CONTROL Remote Monitoring The PSU power supplies have remote monitoring support for current and voltage output. They also support monitoring of operation and alarm status. External monitoring of output voltage and current → from page  External monitoring of operation mode and alarm status → from ...
  • Page 136 PSU Series User Manual 1. Press the Function key and confirm Function the new configuration settings (F-96 = 0 or 1). 2. An external DMM can now be used to monitor the voltage or current output. VMON Connection V MON Analog →...

  • Page 137: External Operation And Status Monitoring

    ANALOG CONTROL External Operation and Status Monitoring The analog control connector can also be used to Background monitor the status operation and alarm status of the instrument. The pins are isolated from the power supply internal circuitry by photo couplers. Status Com1 (Pin 1) and Status Com2 (Pin 5) are photo coupler emitter outputs, whilst pins 2~3, 14~17 are photo coupler collector outputs.
  • Page 138 PSU Series User Manual Timing diagrams Below are 4 example timing diagrams covering a number of scenarios. Note that pins 14~16 are all active low. The diagram below shows the timing diagram CV MODE: when the output is turned on when the PSU is set Output turned on to CV mode.
  • Page 139 ANALOG CONTROL The diagram below shows the timing diagram CC MODE: when the output is turned on when the PSU is set Output turned on to CC mode. CV status CC status Output status The diagram below shows the output status lines CC MODE: when the output is turned off in CC mode.

  • Page 140: External Trigger In/Out

    PSU Series User Manual External Trigger In/Out Pin 4 is used for the external trigger input and pin Background 17 is used as the trigger output. Pin 5 is the common for both pins. The trigger input can be configured to perform an...
  • Page 141 ANALOG CONTROL Schematic 4 (TRIG IN) 5 (Status COM2) 330R 17 (TRIG OUT)

  • Page 142: Isolated Analog Control Option

    PSU Series User Manual Isolated Analog Control Option The PSU power supplies can use the isolated analog connector for external control and remote monitoring. Isolated analog control option specifications → 143  Isolated analog control option overview → 144 ...

  • Page 143: Isolated Analog Control Option Specifications

    ANALOG CONTROL Isolated Analog Control Option Specifications 0~5V / 0~10V Option (PSU-ISO-V) External voltage control Accuracy and linearity: ±1% of output voltage rated output voltage Accuracy and linearity: ±1% of External voltage control output current rated output current 100ppm/ºC of rated voltage or Temperature coefficient ppm/ºC current, after a 30 minute warm- Programming input...

  • Page 144: Isolated Analog Control Option Overview

    PSU Series User Manual Isolated Analog Control Option Overview The Isolated Analog Connectors are 8 pin sockets Overview that are optically isolated from the power supply, allowing inputs with ground references that differ to the power supply. The isolated options include either an isolated voltage (0~5V/0~10V) interface or an isolated current (4~20mA) interface.

  • Page 145: Isolated External Voltage Control Of Voltage Output

    ANALOG CONTROL Isolated External Voltage Control of Voltage Output Voltage control of the voltage output uses the Background isolated voltage option (PSU-ISO-V). A voltage of 0~5V or 0~10V is used to control the full scale voltage of the instrument, where: For 0~5V: Output voltage = full scale voltage ×...
  • Page 146 PSU Series User Manual If the wire shield needs to be grounded at the Connection- alt. voltage source (EXT-V), then it can be connected as shielding shown below. EXT-V Isolated ＋ Voltage － Option Output 2 core shielded wire or twisted...

  • Page 147: Isolated External Voltage Control Of Current Output

    ANALOG CONTROL 5. Press the Output key. The Output voltage can now be controlled with the isolated external voltage control. The input impedance for isolated external voltage Note control is 1MΩ. Use a stable voltage supply for the external voltage control.
  • Page 148 PSU Series User Manual When connecting the external voltage source to the Connection isolated voltage option, use shielded or twisted paired wiring. EXT-V Isolated ＋ Voltage － Option 1or8 2 core shielded Output wire or twisted Terminal pair Pin4(GND_ISO) → EXT-V (-) ...
  • Page 149 ANALOG CONTROL 2. Set the F-91 power on Page 114 configuration setting to 4 (Control by Isolated Board). 3. Set the F-97 power on Page 114 configuration setting to 0 (0~5V control range) or 1 (0~10V control range). Be sure to cycle the power after the power on ...

  • Page 150: Isolated External Current Control Of Voltage Output

    PSU Series User Manual Isolated External Current Control of Voltage Output Current control of the voltage output uses the Background isolated current option (PSU-ISO-I). A current of 4~20mA is used to control the full scale voltage of the instrument, where: Output voltage = full scale voltage ×...
  • Page 151 ANALOG CONTROL If the wire shield needs to be grounded at the Connection- alt. current source (EXT-I), then it can be connected as shielding shown below. EXT-I Isolated Current Option Output 2 core shielded wire or twisted Terminal pair Pin4(GND_ISO) → EXT-I (-) ...

  • Page 152: Isolated External Current Control Of Current Output

    PSU Series User Manual Use a stable current supply for the external current Note control. CV and CC Slew Rate Priority are disabled for V-I mode Note (F-03) when using external current control. See the normal function settings on page 101.
  • Page 153 ANALOG CONTROL If the wire shield needs to be grounded at the Connection- alt. current source (EXT-I), then it can be connected as shielding shown below. EXT-I Isolated Current Option Output 2 core shielded wire or twisted Terminal pair Pin4(GND_ISO) → EXT-I (-) ...

  • Page 154: Isolated External Voltage And Current Monitoring

    PSU Series User Manual Use a stable current source for the external current Note control. CV and CC Slew Rate Priority are disabled for V-I mode Note (F-03) when using external voltage control. See the normal function settings on page 101.
  • Page 155 ANALOG CONTROL VMON Isolated Connection Voltage V MON Current 0→10V Option 0→5V Output 4mA→ 20mA Terminal Pin6 (+VMON_ISO) → Pos (+)  Pin5 (GND_ISO) → Neg (-)  IMON Connection Isolated Voltage I MON Current 0→10V Option 0→5V Output 4mA→ 20mA Terminal Pin7(+IMON_ISO) →...
  • Page 156 PSU Series User Manual 4. Press the Function key and confirm Function the new configuration settings (F-96=0 or 1). 5. The current or voltage output can now be monitored using the isolated voltage or current option. The monitor outputs are strictly DC and should not be...

  • Page 157: Communication Interface

    OMMUNICATION INTERFACE This chapter describes basic configuration of IEEE488.2 based remote control. For a command list, refer to the programming manual, downloadable from GW Instek website, www.gwinstek.com Interface Configuration ...........158 USB Remote Interface ..............158 Configuration..............158 Function Check ..............159 GPIB Remote Interface ..............

  • Page 158: Interface Configuration

    PSU Series User Manual Interface Configuration USB Remote Interface Configuration PC side connector Type A, host Configuration Rear panel Type B, slave PSU side connector 1.1/2.0 (full speed/high speed) Speed CDC (communications device USB Class class) 1. Connect the USB cable to the rear Steps panel USB B port.

  • Page 159: Function Check

    Serial number, and Firmware version in the following format. GW-INSTEK,PSU40-38,TW123456,T0.01.12345678 Manufacturer: GW-INSTEK Model number : PSU40-38 Serial number : TW123456 Firmware version : T0.01.12345678 For further details, please see the programming Note manual, available on the GW Instek web site @ www.gwinstek.com.

  • Page 160: Gpib Remote Interface

    PSU Series User Manual GPIB Remote Interface Configuration To use GPIB, the optional GPIB option (GW Instek part number: PSU-GPIB) must be installed. This is a factory installed option and cannot be installed by the end-user. Only one GPIB address can be used at a time.

  • Page 161: Gpib Function Check

    COMMUNICATION INTERFACE 7. The RMT indicator will turn on when a remote connection has been established. VOLTAGE CURRENT RMT indicator Maximum 15 devices altogether, 20m cable  length, 2m between each device GPIB constraints Unique address assigned to each device ...
  • Page 162 PSU Series User Manual 2. From the Configuration panel access; My System>Devices and Interfaces>GPIB 3. Press Scan for Instruments. 4. Select the device (GPIB address of PSU) that now appears in the System>Devices and Interfaces > GPIB-USB-HS “GPIBX” node. 5. Click on the VISA Properties tab on the bottom.
  • Page 163 COMMUNICATION INTERFACE 7. Click on Configuration. 8. Click on the GPIB Settings tab and confirm that the GPIB settings are correct. 9. Click on the I/O Settings tab. 10. Make sure the Enable Termination Character check box is checked, and the terminal character is \n (Value: xA).
  • Page 164 15. Click Query. 16. The *IDN? query will return the Manufacturer, model name, serial number and firmware version in the dialog box. GW-INSTEK,PSU40-38, TW123456,T0.02.20131205 For further details, please see the programming Note manual, available on the GW Instek web site @ www.gwinstek.com.

  • Page 165: Uart Remote Interface

    COMMUNICATION INTERFACE UART Remote Interface Configure UART The PSU uses the IN & OUT ports for UART Overview communication coupled with RS232 (GW Part number PSU-232) or RS485 adapters (GW part number PSU-485). The pin outs for the adapters are shown below. PSU-232 RS232 DB-9 Remote IN Port(RJ-45) Remark...
  • Page 166 PSU Series User Manual PSU-485 RS485 DB-9 Remote IN Port(RJ-45) Remark cable with DB9 Connector connector Pin No. Name Pin No. Name Housing Shield Housing Shield TXD- RXD- Twisted pair TXD+ RXD+ RXD- TXD- Twisted pair RXD+ TXD+ (RJ-45) (DB-9) To use RS485-2W, User’s...
  • Page 167 COMMUNICATION INTERFACE Diagram of End terminal connector End terminal connector End terminal connector from 8 Pin Connector PSU-232 or PSU- Pin No. Remarks 485 connection kit. Internal shorted Internal shorted 1. Connect the RS232 serial cable Steps RS 485 / 232 (include in the PSU-232 connection kit) or RS485 serial cable (include in the PSU-485...
  • Page 168 PSU Series User Manual F-72 = 0 or 1 Data bits: 0=7 or 1=8 Parity: 0 = none, 1 = odd, 2 = F-73 = 0 ~3 even F-74 = 0 or 1 Stop bits: 0 = 1, 1 = 2...

  • Page 169: Uart Function Check

    COMMUNICATION INTERFACE UART Function Check Invoke a terminal application such as Realterm. Functionality check To check the COM port No, see the Device Manager in the PC. For WinXP; Control panel → System → Hardware tab. Run this query command via the terminal application after the instrument has been configured for either RS232 or RS485 remote control (page 165).

  • Page 170: Multiple Unit Connection

    PSU Series User Manual Multiple Unit Connection The PSU power supplies can have up to 31 units daisy chained together using the 8 pin connectors (IN OUT ports) on the rear panel. The first unit (master) in the chain is remotely connected to a PC using RS232 or RS485 (Legacy Multi-Drop mode), or USB, GPIB or LAN (Multi-Drop mode).
  • Page 171 COMMUNICATION INTERFACE 232 or PSU-485 connection kit. 3. Plug in intermediate connector to the OUT port on the first unit then using the slave serial link cable (black plug) to connect intermediate connector to the IN port of the second unit. 4.
  • Page 172 PSU Series User Manual F-75 = 0 Set the UART TCP to SCPI. F-75 = 0 or 1 F-75 = 1 Set the UART TCP to TDK (emulation mode). Set the address of the master unit. F-76 = 00~30 It must be a unique address identifier.
  • Page 173 COMMUNICATION INTERFACE Set the address of each slave to a F-76 = 00~30 unique address identifier F-77 = 0 Disable Multi-Drop mode. 8. Multiple units can now be operated at the same time. See the programming manual or see the function check below for usage details.

  • Page 174: Multi-Drop Mode

    PSU Series User Manual Diagram of Intermediate connector Intermediate connector Intermediate connector from 8 Pin (Male) 8 Pin (Female) PSU-232 or PSU- Pin No. Name Pin No. Name Remarks 485 connection Housing Shield Case Shield kit. TXD - TXD - Internal paralleled...
  • Page 175 COMMUNICATION INTERFACE 3. Connect the first unit’s LAN, USB or GPIB port to a PC. 4. Plug in intermediate connector to the OUT port on the first unit then using the master serial link cable (gray plug) to connect intermediate connector to the IN port of the second unit.
  • Page 176 PSU Series User Manual 11. Set the address of the master unit using the F-76 parameter. Set the address of the unit. It must F-76 = 00~30 be a unique address identifier. 12. You can check the slaves’ addresses by using the F-77 parameter on the master unit.
  • Page 177 COMMUNICATION INTERFACE RS-485 slave serial link pin assignment Slave serial link cable with RJ-45 8 Pin Connector 8 Pin Connector shielded (IN)(RJ-45) (OUT)(RJ-45) connectors from Pin No. Name Pin No. Name PSU-232 or PSU- Housing Shield Housing Shield 485 connection TXD - TXD - TXD +...

  • Page 178: Multiple Units Function Check

    PSU Series User Manual Diagram of Intermediate connector Intermediate connector Intermediate connector from 8 Pin (Male) 8 Pin (Female) PSU-232 or PSU- Pin No. Name Pin No. Name Remarks 485 connection Housing Shield Case Shield kit. TXD - TXD - Internal paralleled...
  • Page 179 COMMUNICATION INTERFACE When using SCPI commands or TDK GENESYS Legacy Multi- legacy commands, each unit can be individually Drop mode controlled using the unique address identifiers. For this function check, we will assume that the master unit is assigned to address 8, while a slave is assigned address 11.
  • Page 180 PSU Series User Manual Selects the unit with address 8 and Note returns its identity string. ADR 11\r Typing OK\r Return IDN? \r Typing GW-INSTEK,PSU6-200,,T0.01.12345678\r Return Selects the unit with address 11 and Note returns its identity string. TDK commands do not use LF (line feed) codes to Note terminate commands.
  • Page 181 COMMUNICATION INTERFACE Multi-Drop mode When using the Multi-Drop mode, the entire SCPI command list developed for the PSU can be used. Each unit can be individually controlled after a slave unit has been selected. For this function check, we will assume that the master unit is assigned to address 0, while a slave is assigned address 5.
  • Page 182 Returns the active units and master unit Note in the bus. 33=0b100001 The units at address 0 and address 5 are on-line. Master device's address is 0. For further details, please see the programming Note manual, available on the GW Instek web site @ www.gwinstek.com.

  • Page 183: Configure Ethernet Connection

    The PSU series supports both DHCP connections so the instrument can be automatically connected to an existing network or alternatively, network settings can be manually configured.

  • Page 184: Web Server Remote Control Function Check

    PSU Series User Manual 2. Press the Function key to enter the Page 112 Normal configuration settings. Set the following LAN settings: F-36 = 1 Turn LAN on F-37 = 1 Enable DHCP F-59 = 1 Turn the web server on...

  • Page 185: Sockets Server Configuration

    PSU dimensions  Operating area diagram  For further details, please see the programming Note manual, available on the GW Instek web site @ www.gwinstek.com. Sockets Server Configuration This configuration example will configure the PSU Configuration socket server. The following configuration settings will manually assign the PSU an IP address and enable the socket server.

  • Page 186: Socket Server Function Check

    PSU Series User Manual 1. Connect an Ethernet cable from the network to the rear panel Ethernet port. 2. Press the Function key to enter the Function Normal configuration settings. Set the following LAN settings: F-36 = 1 Enable LAN...
  • Page 187 COMMUNICATION INTERFACE press: Start>All Programs>National Instruments>Measurement & Automation 2. From the Configuration panel access; My System>Devices and Interfaces>Network Devices 3. Press Add New Network Device>Visa TCP/IP Resource…...
  • Page 188 PSU Series User Manual 4. Select Manual Entry of Raw Socket from the popup window. 5. Enter the IP address and the port number of the PSU. The port number is fixed at 2268. 6. Click the Validate button. 7. A popup will appear if a connection is successfully established.
  • Page 189 COMMUNICATION INTERFACE 9. Next configure the Alias (name) of the PSU connection. In this example the Alias is: PSU_DC1 10. Click finish. 11. The IP address of the PSU will now appear under Network Devices in the configuration panel. Select this icon now. 12.
  • Page 190 PSU Series User Manual 13. Click the Configuration icon, 14. Click on I/O Settings. 15. Make sure the Enable Termination Character check box is checked, and the terminal character is \n (Value: xA). 16. Click Apply Changes. 17. Click the Input/Output icon.
  • Page 191 COMMUNICATION INTERFACE For further details, please see the programming Note manual, available on the GW Instek web site @ www.gwinstek.com.

  • Page 192: Faq

    The accuracy does not match the specification. Make sure the device is powered On for at least 30 minutes, within +20°C~+30°C. This is necessary to stabilize the unit to match the specification. For more information, contact your local dealer or GW Instek at www.gwinstek.com / marketing@goodwill.com.tw.

  • Page 193: Appendix

    APPENDIX PPENDIX PSU Factory Default Settings ........194 Error Messages & Messages ........197 LED ASCII Table Character Set ........198 PSU Specifications ..........199 Output ....................199 Constant Voltage Mode ..............199 Constant Current Mode ..............200 Protection Function ..............201 Analog Programming and Monitoring ........202 Front Panel ..................

  • Page 194: Psu Factory Default Settings

    PSU Series User Manual PSU Factory Default Settings The following default settings are the factory configuration settings for the power supply. For details on how to return to the factory default settings, see page Initial Settings Default Setting Output LOCK...
  • Page 195 APPENDIX SCPI Emulation F-26 0 = GW Instek LAN setting Setting Default Setting LAN Enable F-36 1 = ON DHCP F-37 1 = ON Socket Server F-57 1 = Enable Enable/Disable Web Server F-59 1 = Enable Enable/Disable Web Password...
  • Page 196 PSU Series User Manual Trigger Input and Output Setting Default Setting Configuration Settings Trigger Input Pulse F100 0 = trigger controlled by trigger level. Width Trigger Input Action F102 0 = None Output State When F103 0 = OFF Receiving Trigger...

  • Page 197: Error Messages & Messages

    APPENDIX Error Messages & Messages The following error messages or messages may appear on the PSU screen during operation. Error Messages Description Master & slave board over temperature protection in PSU Master board over temperature protection in OHP1 Slave board over temperature protection in OHP2 ALM SENS Sense Alarm...

  • Page 198: Led Ascii Table Character Set

    PSU Series User Manual LED ASCII Table Character Set Use the following table to read the LED display messages.

  • Page 199: Psu Specifications

    APPENDIX PSU Specifications The specifications apply when the PSU is powered on for at least 30 minutes. Output Model 6-200 8-180 12.5-120 15-100 20-76 Rated Output Voltage 12.5 Rated Output Current Rated Output Power 1200 1440 1500 1500 1520 Model 30-50 40-38 50-30...

  • Page 200: Constant Current Mode

    PSU Series User Manual Model PSU 30-50 40-38 50-30 60-25 80-19 Line regulation Load regulation Ripple and noise r.m.s. Temperature ppm/ 100 ppm/°C of rated output voltage, after a 30 coefficient °C minute warm-up. Remote sense compensation voltage (single wire)

  • Page 201: Protection Function

    APPENDIX Ripple and noise r.m.s. Temperature ppm/ 100 ppm/°C of rated output current, after a 30 coefficient °C minute warm-up. Model 100-15 150-10 300-5 400-3.8 600-2.6 Line regulation 2.38 2.26 Load regulation 5.76 5.52 Ripple and noise r.m.s. Temperature ppm/ 100 ppm/°C of rated output current, after a 30 coefficient °C...

  • Page 202: Analog Programming And Monitoring

    PSU Series User Manual Model PSU All models Over temperature protection (OHP) Operation Turn the output off. Incorrect sensing connection Operation Turn the output off. protection (SENSE) Low AC input protection (AC-FAIL) Operation Turn the output off. Shutdown (SD) Operation Turn the output off.

  • Page 203: Programming And Measurement

    APPENDIX Model 30-50 40-38 50-30 60-25 80-19 Display, 4 digits Voltage accuracy 0.1% + Current accuracy 0.2% + Model 100-15 150-10 300-5 400-3.8 600-2.6 Display, 4 digits Voltage accuracy 0.1% + 1200 Current accuracy 0.2% + 11.4 Model PSU All models GREEN LED's: CV, CC, V, A, VSR, ISR, DLY, RMT, LAN, M1, M2, M3, Indications RUN, Output ON...

  • Page 204: Input Characteristics

    PSU Series User Manual Output current mA 1.7 0.65 programming resolution Output voltage 0.1% + mV 30 measurement accuracy Output current 0.2% + mA 100 measurement accuracy Output voltage mV 1 measurement resolution Output current mA 1.7 0.65 measurement resolution...

  • Page 205: Interface Capabilities

    APPENDIX Model PSU 100-15 150-10 300-5 400-3.8 600-2.6 Efficiency 100Vac 200Vac Model PSU All models Hold-up time 20ms or greater Interface Capabilities Model PSU All models TypeA: Host, TypeB: Slave, Speed: 1.1/2.0, USB Class: CDC(Communications Device Class) MAC Address, DNS IP Address, User Password, Gateway IP Address, Instrument IP Address, Subnet Mask RS-232/RS-485 Complies with EIA232D / EIA485 Specifications...
  • Page 206 PSU Series User Manual Notes: Minimum voltage is guaranteed to maximum 0.2% of the rated output voltage. Minimum current is guaranteed to maximum 0.4% of the rated output current. At 85 ~ 132Vac or 170 ~ 265Vac, constant load. From No-load to Full-load, constant input voltage. Measured at the sensing point in Remote Sense.

  • Page 207: Psu Dimensions

    APPENDIX PSU Dimensions PSU 6-200, PSU 8-180, PSU 12.5-120, PSU 15-100, PSU 20-76, PSU 30-50, PSU 40-38, PSU 50-30, PSU 60-25 Units = mm Voltage Current DC Power Supply 0 - 40V / 0 - 38A VOLTAGE CURRENT Lock/Local PROT Function Test Shift...

  • Page 208: Psu 80-19, Psu 100-15, Psu 150-10, Psu

    PSU Series User Manual PSU 80-19, PSU 100-15, PSU 150-10, PSU 300-5, PSU 400-3.8, PSU 600-2.6 Units = mm Voltage Current DC Power Supply 0 - 40V / 0 - 38A VOLTAGE CURRENT Lock/Local PROT Function Test Shift Output : Long Push...

  • Page 209: Certificate Of Compliance

    APPENDIX Certificate Of Compliance GOOD WILL INSTRUMENT CO., LTD. declare that the CE marking mentioned product satisfies all the technical relations application to the product within the scope of council: Directive: EMC; LVD; WEEE; RoHS The product is in conformity with the following standards or other normative documents: ◎...
  • Page 210 PSU Series User Manual NDEX Accessories ......... 12 table ..........94 test function settings ....87 Alarm UART settings ......107 description ........28 USB/GPIB settings ....104 Analog connector Conventions ....... 43 pin assignment ......118 CV mode Analog control operation ........
  • Page 211 INDEX specifications ....... 143 interface configuration ....158 voltage control – current output147 local bus configuration ..170, 174 voltage control – voltage output145 multi-unit configuration..170, 174 voltage monitoring ..... 154 multi-unit function check ..178 sockets configuration ....185 Line voltage connection ....

This manual is also suitable for:

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