GW Instek PSU 6-200 User Manual
  1. Manuals
  2. Brands
  3. GW Instek Manuals
  4. Power Supply
  5. PSU 60-25
  6. User manual

GW Instek PSU 6-200 User Manual

Gw instek psu series programmable dc power supply
Hide thumbs Also See for PSU 6-200:
Table of Contents

Advertisement

Quick Links

Download this manual
Programmable DC Power Supply
PSU Series
USER MANUAL
GW INSTEK PART NO. 82SU-60250EA1
ISO-9001 CERTIFIED MANUFACTURER

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the PSU 6-200 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for GW Instek PSU 6-200

Summary of Contents for GW Instek PSU 6-200

  • Page 1 Programmable DC Power Supply PSU Series USER MANUAL GW INSTEK PART NO. 82SU-60250EA1 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

    SAFETY INSTRUCTIONS Table of Contents SAFETY INSTRUCTIONS ........... 5 GETTING STARTED ............9 PSU Series Overview ......10 Appearance .......... 14 Theory of Operation ......22 OPERATION ..............34 Set Up ..........36 Basic Operation ........51 Parallel / Series Operation ....68 Test Scripts ..........
  • Page 4 PSU Series User Manual PSU Dimensions ........ 193 Declaration of Conformity ....194 INDEX ................195...

  • 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: Safety Guidelines

    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. General ...
  • 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 IMPORTANT: The wires in this lead are coloured in accordance with the following code: Green/ Yellow:...

  • Page 9: Getting Started

    GETTING STARTED ETTING STARTED This chapter describes the power supply in a nutshell, including its main features and front / rear panel introduction. After going through the overview, please read the theory of operation to become familiar with the operating modes, protection modes and other safety considerations.

  • Page 10: Psu Series Overview

    PSU Series Overview Series lineup The PSU series consists of 5 models, covering a number of different current, voltage and power capacities: Model name Voltage Rating Current Rating Power PSU 6-200 200A 1200W PSU 12.5-120 12.5V 120A 1500W PSU 20-76...

  • 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 60V, 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 Input terminal cover 62SB-8K0HD101 1U Handle, ROHS...
  • 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-02C Cable for 3 units of PSU-Series in parallel mode connection PSU-02B Bus Bar for 3 units of PSU-Series in parallel mode connection...

  • Page 14: Appearance

    PSU Series User Manual Appearance PSU Series Front Panel Display Area Voltage Current DC Power Supply PSU 40-38 0 - 40 V / 0 - 38A 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 15 GETTING STARTED Used to lock all front panel 6. 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 Button front panel buttons. Used to set and display OVP, OCP 7.
  • Page 16 PSU Series User Manual 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.

  • Page 17: Psu Series Display And Operation Panel

    GETTING STARTED PSU Series Display and Operation Panel Display Area VOLTAGE CURRENT Displays the voltage or the parameter number of a 14. Voltage Meter Function parameter. Displays the current or the value of a Function 15. Current Meter parameter. Lights in green during constant voltage mode. 16.
  • Page 18 PSU Series User Manual 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.

  • Page 19: Rear Panel

    GETTING STARTED Rear Panel ISOLATED PROGRAMMING 4 - 20mA ISOLATED PROGRAMMING 0 - 5V / 0 - 10V DC OUTPUT RS485 / 232 ANALOG PROGRAMMING 240V S LS 47 63Hz 2000VA MAX. REMOTE SENSE AC INPUT Wire clamp connector. AC Input AC INPUT Output terminals for 6V to 60V 2.
  • Page 20 PSU Series User Manual RS 485 / 232 Two different types of cables can 5. Remote-IN be used for RS232 or RS485-based remote control. PSU-232: RS232 cable with DB9 connector kit. PSU-485: RS485 with DB9 connector kit. RS 485 / 232 RJ-45 connector that is used to 6.

  • Page 21: Getting Started

    GETTING STARTED Connector for grounding the output (two 10. Ground positions, shown in red). Screw TED PROGRAMMING 4 - 20mA DC OUTPUT 2 3 4 5 6 7 8 RS485 / 232 OGRAMMING 240V 47 63Hz 2000VA MAX. AC INPUT...

  • Page 22: Theory Of Operation

    Below is a comparison of the operating areas of each power supply. PSU Series Operating Area PSU 60-25 PSU 40-38 PSU 20-76 PSU 12.5-120 12.5 PSU 6-200 20 40 Current (A)

  • Page 23: Cc And Cv Mode

    GETTING STARTED CC and CV Mode When the power supply is operating in CC and CV mode Description constant current mode (CC) a constant current will be supplied to the load. When in constant current mode the voltage output can vary, whilst the current remains constant.
  • Page 24 PSU Series User Manual Conversely the power supply will operate in CC mode when the load resistance is less than the critical resistance. In CC mode the current output is equal to I and the voltage output is less than V Crossover >R point...

  • Page 25: Slew Rate

    GETTING STARTED Slew Rate The PSU has selectable slew rates for CC and Theory CV 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 26: Internal Resistance

    By default the internal resistance is 0Ω. Internal Internal Resistance Range Unit Model Resistance Range PSU 6-200 0.000 ~ 0.030Ω PSU 12.5-120 0.000 ~ 0.104Ω PSU 20-76 0.000 ~ 0.263Ω PSU 40-38 0.000 ~ 1.053Ω...

  • Page 27: Alarms

    GETTING STARTED Alarms The PSU power supplies have a number of protection features. When one of the protection alarms are tripped, the ALM icon on the display will be lit and the type of alarm that has been tripped will be shown on the display. When an alarm has been tripped the output will be automatically turned off.
  • Page 28 PSU Series User Manual AC Fail. This alarm function is activated when a low AC input is detected. Fan failure. This alarm function is activated FAN FAIL when the fan RPMs drop to an abnormally low level. Force Shutdown is not activated as a result of Shutdown the PSU series detecting an error.

  • Page 29: Considerations

    GETTING STARTED Considerations The following situations should be taken into consideration when using the power supply. When the power supply switch is first turned Inrush current on, an inrush current is generated. Ensure there is enough power available for the power supply when first turned on, especially if a number of units are turned on at the same time.
  • Page 30 PSU Series User Manual When the power supply is connected to a Reverse Current: Regenerative load regenerative load such as a transformer or inverter, reverse current will feed back to the power supply. The PSU power supply cannot absorb reverse current. For loads that create reverse current, connect a resistor in parallel to the power supply to bypass the reverse current.
  • Page 31 GETTING STARTED Ensure the reverse withstand voltage of the diode CAUTION is able to withstand 2 times the rated output voltage of the power supply and the forward current capacity can withstand 3 to 10 times the rated output current of the power supply. Ensure the diode is able to withstand the heat generated in the following scenarios.

  • Page 32: Grounding

    PSU Series User Manual Grounding The output terminals of the PSU power supplies are isolated with respect to the protective grounding terminal. The insulation capacity of the load, the load cables and other connected devices must be taken into consideration when connected to the protective ground or when floating.
  • Page 33 GETTING STARTED If the positive or negative terminal is connected Grounded output terminal to the protective ground terminal, the insulation capacity needed for the load and load cables is greatly reduced. The insulation capacity only needs to be greater than the maximum output voltage of the power supply with respect to ground.
  • Page 34 PSU Series User Manual PERATION Set Up ................36 Line Voltage Connection ..................36 Power Up ........................38 Wire Gauge Considerations ..................39 Output Terminals ....................41 Using the Output Terminal Cover ................ 43 Using the Rack Mount Kit ..................44 How to Use the Instrument ...................

  • Page 35: Operation

    OPERATION Test Scripts ..............85 Test Script File Format ................... 86 Test Script Settings ....................86 Setting the Test Script Settings ................87 Load Test Script from USB ..................88 Run Test Script......................89 Export Test Script to USB ..................90 Remove Test Script ....................

  • 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 procedure below: The following procedure should only be attempted Warning...
  • Page 37 OPERATION GND: Green or Green and Yellow L: Black or Brown 2-M3x6L N: White or Blue Pan Head Screw 1. Connect the AC power Installation cord wires to the AC input terminals. 240V 47 63Hz 2000VA MAX. AC INPUT Black/Brown  Line ...

  • 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 settings are configured, the PSU will recover the state right before the power was last turned OFF.

  • Page 39: Wire Gauge Considerations

    OPERATION Wire Gauge Considerations Before connecting the output terminals to a Background load, 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 PSU Series User Manual used, connect the shield to the chassis via the rear panel ground screw. Even if noise is not a concern, the load and remote sense wires should be twisted-pairs to reduce coupling, which might impact the stability of the power supply.

  • Page 41: Output Terminals

    OPERATION Output Terminals Before connecting the output terminals to the Background load, first consider whether voltage sense will be used, the gauge of the cable wiring and the withstand voltage of the cables and load. The output terminals can be connected to load cables using M8 sized bolts.
  • Page 42 PSU Series User Manual 5. Connect the positive load cable to the positive output terminal and the negative cable to the negative output terminal. 6. Reattach the output terminal Page 43 cover. Connection Use the included M8-sized bolt set to connect the Example load cables to the output terminals.

  • Page 43: Using The Output Terminal Cover

    OPERATION 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. 2-M3x6L SCRE Reverse the procedure to remove the terminal Removal covers.

  • Page 44: Using The Rack Mount Kit

    PSU Series User Manual 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 45: How To Use The Instrument

    OPERATION How to Use the Instrument The PSU power supplies use a novel method of Background configuring parameter values only using the voltage or current knobs. The knobs are used to quickly edit parameter values at 0.01, 0.1 or 1 unit steps at a time.
  • Page 46 PSU Series User Manual Notice the Set key becomes illuminated when Note setting the current or voltage. If the voltage or current knobs are unresponsive, press the Set key first.

  • Page 47: Reset To Factory Default Settings

    OPERATION Reset to Factory Default Settings The F-88 configuration setting allows the PSU Background to be reset back to the factory default settings. See page 183 for the default factory settings. 1. Press the Function key. The Steps Function Function key will light up. 2.

  • Page 48: View System Version And Build Date

    PSU Series User Manual View System Version and Build Date The F-89 configuration setting allows you to Background view 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 Steps Function Function key will light up.
  • Page 49 OPERATION 0-XX: Version (1/2) F-89 1-XX: Version (2/2) 2-XX: Build On-Year. (1/2) 3-XX: Build On-Year. (2/2) 4-XX: Build On-Month. 5-XX: Build On-Day. 6-XX: Keyboard CPLD. (1/2) 7-XX: Keyboard CPLD. (2/2) 8-XX: Analog Board CPLD. (1/2) 9-XX: Analog Board CPLD. (2/2) A-XX: Analog Board FPGA (1/2) B-XX: Analog Board FPGA.
  • Page 50 PSU Series User Manual Keyboard CPLD Version: 0x030C Example 6-03: Keyboard CPLD Version. 7-0C: Keyboard CPLD Version. Analog CPLD Version: 0x0421 Example 8-04: Analog CPLD Version. 9-21: Analog CPLD Version. Analog Board FPGA: 0x0241 Example A-02: Analog FPGA Version. B-41: Analog FPGA Version. Kernel Version: 2013/01/22 Example C-20: Kernel Build On-Year.

  • Page 51: Basic Operation

    OPERATION Basic Operation This section describes the basic operations required to operate the power supply. Setting OVP/OCP/UVL → from page 51  C.V. priority mode → from page 54  C.C. priority mode → from page 57  Panel lock → page 60 ...
  • Page 52 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) Note to apply limits to the voltage and current settings, respectively.
  • Page 53 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 54: Set To C.v. Priority Mode

    PSU Series User Manual Set to C.V. Priority Mode When setting the power supply to constant voltage mode, a current limit must also be set to determine the crossover point. When the current exceeds the crossover point, the mode switches to C.C. mode.
  • Page 55 6. If CV Slew Rate Priority was chosen as the operating mode, set F-04 (Voltage Slew Rate Up) and the F-05 (Voltage Slew Rate Down) and save. F-04 / F-05 0.001V~0.06V/msec (PSU 6-200) 0.001V~0.125V/msec (PSU 12.5-120) 0.001V~0.2V/msec (PSU 20-76) 0.001V~0.4V/msec (PSU 40-38) 0.001V~0.6V/msec (PSU 60-25)
  • Page 56 PSU Series User Manual 9. Use the Voltage knob to set the Voltage voltage. Notice the Set key becomes illuminated when Note setting the current or voltage. If the Voltage or Current knobs are unresponsive, press the Set key first. 10.

  • Page 57: Set To C.c. Priority Mode

    OPERATION 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. mode. For details about C.C. operation, see page 23. C.C. and C.V. mode have two selectable slew rates: High Speed Priority and Slew Rate Priority.
  • Page 58 6. If CC Slew Rate Priority was chosen as the operating mode, set F-06 (Current Slew Rate Up) and F-07 (Current Slew Rate Down) and save. F-06 / F-07 0.001A~2A / msec (PSU 6-200) 0.001A~1.2A / msec (PSU 12.5-120) 0.001A~0.76A / msec (PSU 20-76) 0.001A~0.38A / msec (PSU 40-38) 0.001A~0.25A / msec (PSU 60-25)
  • Page 59 OPERATION 9. Use the Current knob to set the Current current. Notice the Set key becomes illuminated when Note setting the current or voltage. If the Voltage or Current knobs are unresponsive, press the Set key first. 10. Press the Output key. The Output Output key becomes illuminated.

  • Page 60: Panel Lock

    PSU Series User Manual 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 61: Recall Setup

    OPERATION 3. 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. 1.

  • Page 62: Voltage Sense

    PSU Series User Manual 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.

  • Page 63: Remote Sense Cover

    OPERATION Remote Sense Cover Ensure the output is off before handling the WARNING remote 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. Electric shock or damage to the power supply could result.

  • Page 64: Local Sense

    The remote sense terminals are connected to the load terminals of the DUT to determine the voltage drop across the load cables. Remote sense can compensate up to 1 volt (PSU 6-200/12.5-120/20- 76), 2 volts (PSU 40-38) or 3 volts (PSU 60-25) (compensation voltage, single line).
  • Page 65 OPERATION 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. Be sure to remove the sense jumpers from the Note remote sense connector so the unit is not using local sensing.
  • Page 66 PSU Series User Manual Page 62 PSU #1 Load Output Input Output Input PSU #2 Output Output 2. Operate the instrument as normal. Page 69 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 67 OPERATION Page 62 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 Wire Shielding and Load line inductance and capacitance of the load cables, impedance...

  • Page 68: Parallel / Series Operation

    PSU Series User Manual 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 69: Master-Slave Parallel Overview

    OPERATION 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 70 PSU Series User Manual 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 71 The bleeder resistors in all the slave units are always turned off when in parallel mode. Model 1 unit 2 units 3 units 4 units Output Voltage/ PSU 6-200 Output Current 200A 400A 600A 800A PSU 12.5-120 12.5V 12.5V...

  • Page 72: Master-Slave Parallel Connection

    PSU Series User Manual Master-Slave Parallel Connection To operate the power supplies in parallel with Analog Control Connection the analog connectors, connect the analog connectors on the master and slave units as shown in the diagrams below. Alternatively, preconfigured cables can be used: PSU-01C: 1 master with 1 slave PSU-02C: 1 master with 2 slaves PSU-03C: 1 master with 3 slaves...
  • Page 73 OPERATION 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 SLAVE #2 PRL IN+ PRL IN- 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). 3.

  • Page 75: Master-Slave Parallel Operation

    OPERATION Master-Slave Parallel Operation Before using the power supplies in parallel, the Master-Slave Configuration master and slave units need to be configured. 1. Configure the OVP, OCP and ULV Steps Page 51 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 Configuration settings can be checked on both the Note master and slave units by pressing the Function key and checking F-93. Only the Master OVP, OCP and UVL settings are used for protection. Slave protection levels are disregarded.

  • Page 77: Master-Slave Parallel Calibration

    OPERATION Master-Slave Parallel Calibration The F-16 function setting can be used to Master-Slave Configuration calibrate the output of PSU units connected in parallel. 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 102 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. Calibration will take a few moments.

  • Page 79: Master-Slave Series Overview

    OPERATION Master-Slave Series Overview When connecting PSU power supplies in series, Background up 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 OVP/OCP/ULV OVP, OCP and ULV level for each unit must  be set separately. The OVP and OCP protections are tripped  independently on the master and slave. Remote monitoring Voltage monitoring (VMON) and current  monitoring (IMON) should be performed on both units.

  • Page 81: Series Connection

    OPERATION Model Single unit 2 units Output Voltage/ PSU 6-200 Output Current 200A 200A PSU 12.5-120 12.5V 120A 120A PSU 20-76 PSU 40-38 PSU 60-25 120V Series Connection If using the PSU in series, please be aware that each unit is acts independently and thus there are no special communication buses for serial connections.
  • Page 82 PSU Series User Manual Series Connection Unit #1 Load to Output Output Input Positive and Negative Polarity Output Input Ground Unit #2 Output Output Ground Note: The output reference ground (COMMON) can be grounded at the power supply side instead of the load, depending on the requirements.

  • Page 83: Series Operation

    OPERATION Ensure load cables have sufficient Page 39 Note current capacity. Series Operation Before using the power supplies in series, the Series Configuration master and slave units need to be configured. 1. Configure the OVP, OCP and ULV Page 51 settings for each unit.
  • Page 84 PSU Series User Manual Only operate the power supplies in series if the Series Operation units are configured correctly. 1. Turn on both units. When connected in series unit will only show the voltage and current of their own unit. Unit #1 VOLTAGE CURRENT...

  • 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 Steps the 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 Current a memory number. (Excluding T- 1~10 Range 5. Press the Voltage knob to complete Voltage the setting. Press the Test key again to exit the Exit TEST Test settings. The Test key light will turn off.

  • 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 Note that the function settings for F-20 = 1 (page 102).

  • 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 Note an 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 Note that the function settings for F-20 = 1 (page 101). 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 Note from 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 ..................99 Interface Configuration Settings ................102 USB / GPIB Settings ................102 LAN Settings .................... 103 UART Settings ..................105 System Settings ....................... 106 Power On Configuration Settings ............... 107 Special Function .....................

  • Page 94: Configuration Overview

    1 = CC high speed priority (CCHS) V-I mode slew rate select F-03 2 = CV slew rate priority (CVLS) 3 = CC slew rate priority (CVLS) 0.001~0.06V/msec (PSU 6-200) 0.001~0.125V/msec (PSU 12.5-120) Rising voltage slew rate F-04 0.001~0.2V/msec (PSU 20-76) 0.001~0.4V/msec (PSU 40-38)
  • Page 95 CONFIGURATION 0.001~0.06V/msec (PSU 6-200) 0.001~0.125V/msec (PSU 12.5-120) Falling voltage slew rate F-05 0.001~0.2V/msec (PSU 20-76) 0.001~0.4V/msec (PSU 40-38) 0.001~0.6V/msec (PSU 60-25) 0.001~2A/msec (PSU 6-200) 0.001~1.2A/msec (PSU 12.5-120) Rising current slew rate F-06 0.001~0.76A/msec (PSU 20-76) 0.001~0.38A/msec (PSU 40-38) 0.001~0.25A/msec (PSU 60-25) 0.001~2A/msec (PSU 6-200)
  • Page 96 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 LAN Settings...
  • Page 97 CONFIGURATION Socket Server 0 = Disable, 1 = Enable F-57 Enable/Disable Web Server 0 = Disable, 1 = Enable F-59 Enable/Disable Web Password 0 = Disable, 1 = Enable F-60 Enable/Disable Web Enter Password F-61 0000~9999 UART Settings 0 = Disable UART, 1 = RS232, UART Mode F-70 2 = RS485...
  • Page 98 PSU Series User Manual 0 = Control by Local 1 = Control by External Voltage 2 = Control by External Resistor - Rising CC Control F-91 3 = Control by External Resistor - Falling 4 = Control by Isolated Board 0 = Safe Mode (Always OFF), Output Status when 1 = Force Mode (Always ON),...

  • Page 99: Normal Function Settings

    CONFIGURATION Normal Function Settings Delays turning the output on for a designated Output ON Delay Time amount of time. The Delay indicator will light when the Delay time is not 0. Note: The Output ON Delay Time setting has a maximum deviation (error) of 20ms.
  • Page 100 PSU Series User Manual Selects High Speed Priority or Slew Rate V-I Mode Priority 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 101 CONFIGURATION Sets the falling current slew rate. Only Falling Current Slew Rate applicable if V-I Mode is set to CC Slew Rate Priority. F-07 0.001 ~ max. A/msec Sets the internal resistance of the power supply. Internal Resistance F-08 0.000Ω ~ X.XXXΩ Settings (Where X.XXX = Rating Voltage / Rating Current)

  • Page 102: Interface Configuration Settings

    PSU Series User Manual F-14 0 = OFF 1 = ON Displays which memory setting is recalled (M1, Display Memory Parameter M2 or M3) when recalling a setup. F-15 0 = OFF, 1 = ON This function performs offset calibration for Auto Calibration parallel control.

  • Page 103: Lan Settings

    SCPI Emulation modes allow you to emulate the remote commands of legacy equipment that is used in a test environment. 0 = GW INSTEK, 1 = TDK GEN, F-26 2 = Agilent N5700, 3 = Kikusui LAN Settings Displays the MAC address in 6 parts. This...
  • Page 104 PSU Series User Manual Turns DHCP on or off. DHCP F-37 0 = OFF, 1 = ON Sets the default IP address. IP address 1~4 IP Address-1~4 splits the IP address into four sections. (F-39 : F-40 : F-41 : F-42) (0~255 : 0~255 : 0~255 : 0~255) Sets the subnet mask.

  • Page 105: Uart Settings

    CONFIGURATION UART Settings Sets the UART mode or disables UART. UART Mode F-70 0 = Disable UART, 1 = RS232, 2 = RS485 Sets the UART baud rate. 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 106: System Settings

    PSU Series User Manual System Settings Returns the PSU to the factory default settings. Factory Default Configuration See page 183 for a list of the default settings. F-88 0 = None, 1 = Factory Default. Displays the PSU version number, build date, keyboard CPLD, analog board CPLD, analog board FPGA, kernel build date, test command version and test command build date.

  • Page 107: Power On Configuration Settings

    CONFIGURATION Power On Configuration Settings Sets the constant voltage (CV) control mode CV Control between local and external voltage/resistance control. For external voltage control, see page 118 (External Voltage Control of Voltage Output) and page 123 (External Resistance Control of Voltage Output). For Isolated control, see page 140 for details.
  • Page 108 PSU Series User Manual F-92 0 = Safe Mode (Always OFF), 1 = Force Mode (Always ON), 2 = Auto Mode (Status before last time Power OFF) Sets the power supply as master or slave. See Master/Slave the parallel/series operation for details, page Configuration F-93 0 = Independent...

  • Page 109: Special Function

    CONFIGURATION Special Function The special function setting is used to access Special Function calibration, firmware updates and other special functions. The special function setting has a password that is used to access the special function menu. The password used determines which function is accessed.
  • Page 110 PSU Series User Manual VOLTAGE CURRENT 3. Rotate the Voltage knob to change Voltage the F setting. F-00~F-61, F-70~F-76, Range F-88~F-98 4. Use the Current knob to set the Current parameter for the chosen F setting. Press the Voltage knob to save the Voltage configuration setting.

  • Page 111: Setting Power On Configuration Settings

    CONFIGURATION Setting Power On Configuration Settings The Power On Configuration settings can only Background be 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 112 PSU Series User Manual Press the Voltage knob to save the Voltage configuration setting. ConF will be displayed when it is configuring. VOLTAGE CURRENT Cycle the power to save and exit the Exit configuration settings.

  • Page 113: Analog Control

    ANALOG CONTROL 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 114: 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 115: Analog Control Connector Overview

    ANALOG CONTROL 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 116 PSU Series User Manual 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, 24, and 25. It is connected internally to the negative output.
  • Page 117 ANALOG CONTROL EXT-V/R CC 21 This line uses an external voltage or resistance to CONT control the output current. External voltage control (F-91: 1); External resistor control (F-91: 2, F-91: 3). 0 to 5V or 0 to 5kΩ; 0 % to 100 % of the rated output current (F-97: 0).

  • Page 118: External Voltage Control Of Voltage Output

    PSU Series User Manual 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. See page 108 for details.
  • Page 119 ANALOG CONTROL If the wire shield needs to be grounded at the Connection- alt. voltage source (EXT-V), then the shield cannot shielding also be grounded at the negative (-) terminal output of the PSU power supply. This would short the output. EXT-V ＋...
  • Page 120 PSU Series User Manual 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 Note mode (F-03) when using external voltage control. See the normal function settings on page 99.

  • Page 121: External Voltage Control Of Current Output

    ANALOG CONTROL External Voltage Control of Current Output External voltage control of the current 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. See page 108 for details.
  • 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 shielding also be grounded at the negative (-) terminal output of the PSU power supply. This would short the output.

  • Page 123: External Resistance Control Of Voltage 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 Note mode (F-03) when using external voltage control. See the normal function settings on page 99.
  • Page 124 PSU Series User Manual Falling: For 10kΩ~0kΩ: Output voltage = full scale voltage × ([10-external resistance]/10) For 5kΩ~0kΩ: Output voltage = full scale voltage × ([5-external resistance]/5) The falling resistance configuration is Note recommended for safety reasons. In the event that the cables become accidentaly disconnected (high Ω), the voltage output will drop to zero.

  • Page 125: External Resistance Control Of Current Output

    ANALOG CONTROL 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- 90=2 or 3). 4. Press the Output key. The Output voltage can now be controlled with the External resistance.
  • Page 126 PSU Series User Manual 5kΩ~0kΩ/10kΩ~0kΩ. Rising: For 0kΩ~10kΩ: Output current = full scale current × (external resistance/10) For 0kΩ~5kΩ: Output current = full scale current × (external resistance/5) Falling: For 10kΩ~0kΩ: Output current = full scale current × ([10-external resistance]/10) For 5kΩ~0kΩ: Output current = full scale current ×...
  • Page 127 ANALOG CONTROL 1. Connect the external resistance according to the Steps connection diagrams above. Page 111 2. Set the F-91 (CC Control) configuration settings to 2 for external resistor rising or to 3 for external resistor falling. Be sure to cycle the power after the power ...

  • Page 128: External Control Of Output

    PSU Series User Manual External Control of Output The output can be turned on or off externally Background using a switch. The analog control connector can be set to turn the output on from a high or low signal. The voltage across pins 19 and 20 are internally pulled up to +5V ±5% @ 500uA with 10kΩ...
  • Page 129 ANALOG CONTROL Set F-94 (External output logic) in Page 111 the power on configuration settings to 0 (High = On) or 1 (Low = On) and set F-98 (External output control function) to 1(On). Be sure to cycle the power after ...
  • Page 130 PSU Series User Manual Messages: If F-94 = 0 (High = on) and pin 19 is Note low (0) “MSG 001” will be displayed on the display. If F-94 = 1 (Low = on) and pin 19 is high (1) “MSG 002”...

  • Page 131: 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 132 PSU Series User Manual When using a switch over long distances, please Note use a switch relay to extend the line from the coil side of the relay. Switch Relay Line Analog connector extention Output If a single switch control is to be used for multiple Terminal units, please isolate each instrument.

  • Page 133: 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 134 PSU Series User Manual Set F-96 (Monitor Voltage Select) Page 111 in the power on configuration settings to 0 (5V) or 1 (10V). Be sure to cycle the power after  setting the power on configuration settings. 3. Press the Function key and confirm Function the new configuration settings (F-96 = 0 or 1).
  • Page 135 ANALOG CONTROL Maximum current is 5mA. Ensure the sensing Note circuit has an input impedance greater than 1MΩ. The monitor outputs are strictly DC and should not be used to monitor analog components such as transient voltage response or ripple etc. Ensure IMON(pin 24) and VMON(pin 25) are not CAUTION shorted together.

  • Page 136: External Operation And Status Monitoring

    PSU Series User Manual External Operation and Status Monitoring The analog control connector can also be used Background to 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 137 ANALOG CONTROL Below are 4 example timing diagrams covering Timing diagrams 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 Output turned on set to CV mode.
  • Page 138 PSU Series User Manual The diagram below shows the timing diagram CC MODE: Output turned on when the output is turned on when the PSU is set to CC mode. CV status CC status Output status The diagram below shows the output status CC MODE: lines when the output is turned off in CC mode.

  • Page 139: External Trigger In/Out

    ANALOG CONTROL External Trigger In/Out Pin 4 is used for the external trigger input and Background pin 17 is used as the trigger output. Pin 5 is the common for both pins. Name and Pin Description STATUS Common (photo coupler COM2 emitter) for trigger pins 4, 17.

  • Page 140: 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 → 141  Isolated analog control option overview → 142  Isolated external voltage control of current output →...

  • Page 141: Isolated Analog Control Option Specifications

    ANALOG CONTROL Isolated Analog Control Option Specifications 0~5V / 0~10V Option (PSU-ISO-V) Accuracy and linearity: ±1% of External voltage control 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-up...

  • Page 142: Isolated Analog Control Option Overview

    PSU Series User Manual Isolated Analog Control Option Overview The Isolated Analog Connectors are 8 pin Overview sockets 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 143: 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 144 PSU Series User Manual If the wire shield needs to be grounded at the Connection- alt. voltage source (EXT-V), then it can be shielding connected as shown below. EXT-V Isolated ＋ Voltage － Option Output 2 core shielded wire or twisted Terminal pair Pin4(GND_ISO) →...
  • Page 145 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 146: Isolated External Voltage Control Of Current Output

    PSU Series User Manual Isolated External Voltage Control of Current Output Voltage control of the current 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 current of the instrument, where: For 0~5V: Output current = full scale current ×...
  • Page 147 ANALOG CONTROL If the wire shield needs to be grounded at the Connection- alt. voltage source (EXT-V), then it can be shielding connected as shown below. EXT-V Isolated ＋ Voltage － Option Output 2 core shielded wire or twisted Terminal pair Pin4(GND_ISO) →...

  • Page 148: Isolated External Current Control Of Voltage Output

    PSU Series User Manual 5. Press the Output key. The Output current can now be controlled with the isolated external voltage control. The input impedance of isolated external voltage Note control is 1MΩ. Use a stable voltage supply for the external voltage control.
  • Page 149 ANALOG CONTROL When connecting the external current source to Connection the isolated analog option, use shielded or twisted paired wiring. EXT-I Isolated Current Option 1or8 2 core shielded Output wire or twisted Terminal pair Pin4(GND_ISO) → EXT-I (-)  Pin2(+VPROG_ISO) → EXT-I (+) ...
  • Page 150 PSU Series User Manual 2. Set the F-90 power on Page 111 configuration setting to 4 (Control by Isolated Board). 3. Set the F-97 power on configuration setting to 1. Be sure to cycle the power after the power  on configuration has been set.

  • Page 151: Isolated External Current Control Of Current Output

    ANALOG CONTROL Isolated External Current Control of Current Output Current control of the current output uses the Background isolated current option (PSU-ISO-I). A current of 4~20mA is used to control the full scale current of the instrument, where: Output current = full scale current × ((external current - 4mA)/16mA) When connecting the external current source to Connection...
  • Page 152 PSU Series User Manual If the wire shield needs to be grounded at the Connection- alt. current source (EXT-I) , then it can be connected shielding as shown below. EXT-I Isolated Current Option Output 2 core shielded wire or twisted Terminal pair Pin4(GND_ISO) →...

  • Page 153: Isolated External Voltage And Current Monitoring

    ANALOG CONTROL Use a stable current source for the external current Note control. CV and CC Slew Rate Priority are disabled for V-I Note mode (F-03) when using external voltage control. See the normal function settings on page 99. Ensure the polarity is correct when connecting the CAUTION external voltage.
  • Page 154 PSU Series User Manual 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→...
  • Page 155 ANALOG CONTROL 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 Note be used to monitor analog components such as transient voltage response or ripple etc.
  • Page 156 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 ..........157 USB Remote Interface ..................157 Configuration .................... 157 Function Check ..................158 GPIB Remote Interface ..................

  • Page 157: Communication Interface

    COMMUNICATION INTERFACE Interface Configuration USB Remote Interface Configuration Type A, host PC side connector 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 158: 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 159: Gpib Remote Interface

    COMMUNICATION INTERFACE 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 160: Gpib Function Check

    PSU Series User Manual 7. The RMT indicator will turn on when a remote connection has been established. VOLTAGE CURRENT RMT indicator Maximum 15 devices altogether, 20m cable GPIB constraints  length, 2m between each device Unique address assigned to each device ...
  • Page 161 COMMUNICATION INTERFACE 1. Start the NI Measurement and Automation Functionality check Explorer (MAX) program. Using Windows, press: Start>All Programs>National Instruments>Measurement & Automation 2. From the Configuration panel access; My System>Devices and Interfaces>GPIB 3. Press Scan for Instruments.
  • Page 162 PSU Series User Manual 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. 6. Click Open Visa Test Panel. 7.
  • Page 163 COMMUNICATION INTERFACE check box is checked, and the terminal character is \n (Value: xA). 11. Click Apply Changes. 12. Click on Input/Output. 13. Click on the Basic/IO tab. 14. Enter *IDN? in the Select or Enter Command drop down box. 15.

  • Page 164: Uart Remote Interface

    PSU Series User Manual For further details, please see the programming Note manual, available on the GW Instek web site @ www.gwinstek.com. UART Remote Interface Configure UART The PSU uses the IN & OUT ports for UART Overview communication coupled with RS232 (GW Part...
  • Page 165 COMMUNICATION INTERFACE PSU-485 RS485 DB-9 Connector Remote IN Port Remarks cable with DB9 Pin No. Name Pin No. Name connector Housing Shield Housing Shield TXD - RXD - Twisted pair TXD + RXD + RXD - TXD - Twisted pair RXD + TXD + RS 485 / 232...
  • Page 166 PSU Series User Manual UART address if TDK is selected F-76 = 00~31 for F-75. 3. The RMT indicator will turn on when a remote connection has been established. VOLTAGE CURRENT RMT indicator If TDK (emulation mode) is selected for F-75, the Note TDK GENESYS legacy commands should be used for remote commands.

  • Page 167: Uart Function Check

    Serial number, and Firmware version in the following format: GW-INSTEK,PSU40-38,,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 168: Multiple Unit Connection Using Local Rs485 Bus

    PSU Series User Manual Multiple Unit Connection Using Local RS485 Bus 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 in the chain is remotely connected to a PC using RS232 or RS485.
  • Page 169 COMMUNICATION INTERFACE 4. Terminate the OUT port of the last unit with the end terminal connector included in the PSU-232 or PSU-485 connection kit. 5. Press the Function key to enter the Page 109 Normal configuration settings for the master unit. Set the following settings: Configure the master unit as you normally would for RS232 or...

  • Page 170: Multi-Unit Function Check

    PSU Series User Manual Set the address of each slave to F-76 = 00~31 a unique address identifier 7. Multiple units can now be operated at the same time. See the programming manual or see the function check below for usage details. Serial link cable 8 Pin Connector (IN) 8 Pin Connector (OUT)
  • Page 171 Note: TDK commands do not use LF (line feed) codes to terminate commands. See the TDK Genesys user manual for further information. For further details, please see the programming Note manual, available on the GW Instek web site @ www.gwinstek.com.

  • Page 172: Configure Ethernet Connection

    PSU Series User Manual Configure Ethernet Connection The Ethernet interface can be configured for a number of different applications. Ethernet can be configured for basic remote control or monitoring using a web server or it can be configured as a socket server.

  • Page 173: Web Server Remote Control Function Check

    COMMUNICATION INTERFACE 2. Press the Function key to enter the Page 109 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 F-60 = 0 or 1 Set to 0 to disable web password, set to 1 to enable web password...
  • Page 174 The web browser interface allows you to access the following: Network configuration settings  Analog control pinouts & usage  PSU dimensions  Operating area diagram  For further details, please see the programming Note manual, available on the GW Instek web site @ www.gwinstek.com.

  • Page 175: Sockets Server Configuration

    COMMUNICATION INTERFACE Sockets Server Configuration This configuration example will configure the Configuration PSU socket server. The following configuration settings will manually assign the PSU an IP address and enable the socket server. The socket server port number is fixed at 2268. 1.

  • Page 176: Socket Server Function Check

    PSU Series User Manual Socket Server Function Check To test the socket server functionality, National Background Instruments Measurement and Automation Explorer can be used. This program is available on the NI website, www.ni.com., via a search for the VISA Run-time Engine page, or “downloads”...
  • Page 177 COMMUNICATION INTERFACE 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 178 PSU Series User Manual 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.
  • Page 179 COMMUNICATION INTERFACE 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. 18.
  • Page 180 PSU Series User Manual 20. 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 181: Faq

    • How often should the power supply be calibrated? • The OVP voltage is triggered earlier than expected. • Can I combine more than 1 cable together for the output wiring? • The accuracy does not match the specification. How often should the power supply be calibrated? The PSU should be calibrated by an authorized service center at least every 2 years.
  • Page 182 PSU Series User Manual 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 GWInstek at www.gwinstek.com / marketing@goodwill.com.tw.

  • Page 183: Appendix

    APPENDIX PPENDIX 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 Default Setting Initial Settings Output LOCK 0 (Disabled) Voltage Current 1.1 X Vrate...
  • Page 184 F-22 2 = Auto Detect Speed GPIB address F-23 GPIB Enable/Disable F-24 1 = Enable GPIB SCPI Emulation F-26 0 = GW Instek LAN setting LAN Enable F-36 1 = ON DHCP F-37 1 = ON Power On Configuration Socket Server...

  • Page 185: 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 186: 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 187: Psu Specifications

    APPENDIX PSU Specifications The specifications apply when the PSU is powered on for at least 30 minutes. Output Model 6-200 12.5-120 20-76 40-38 60-25 Rated Output 12.5 Voltage (*1) Rated Output Current (*2) Rated Output 1200 1500 1520 1520 1500 Power Constant Voltage Mode Model...

  • Page 188: Constant Current Mode

    PSU Series User Manual Constant Current Mode Model 6-200 12.5-120 20-76 40-38 60-25 Line regulation (*3) Load regulation 20.2 12.6 (*11) Ripple and r.m.s. noise (*12) Temperature ppm/ °C 100ppm/°C of rated output current, after a 30 minute coefficient warm-up. Protection Function Model 6-200...

  • Page 189: Analog Programming And Monitoring

    APPENDIX Analog Programming and Monitoring Model 6-200 20-76 40-38 60-25 12.5-120 External voltage control Accuracy and linearity: ±0.5% of rated output output voltage voltage. External voltage control Accuracy and linearity: ±1% of rated output output current current. External resistor control Accuracy and linearity: ±1% of rated output output voltage voltage.

  • Page 190: Front Panel

    PSU Series User Manual Front Panel Model 6-200 20-76 40-38 60-25 12.5-120 Display, 4 digits Voltage accuracy 0.1% + Current accuracy 0.2% + GREEN LED's: CV, CC, V, A, VSR, ISR, DLY, Indications RMT, LAN, M1, M2, M3, RUN, Output ON RED LED's: ALM, ERR Buttons Lock/Local(Unlock), PROT(ALM_CLR),...

  • Page 191: Input Characteristics

    APPENDIX Input Characteristics Model 6-200 12.5-120 20-76 40-38 60-25 Norminal input 100Vac to 240Vac, 50Hz to 60Hz, single phase rating Input voltage 85Vac ~ 265Vac range Input frequency 47Hz ~ 63Hz range Maximum input 100Vac current 200Vac Inrush current Less than 50A. Maximum input 2000 power...
  • Page 192 PSU Series User Manual Environment Conditions Model 6-200 12.5-120 20-76 40-38 60-25 main unit Weight Less than 8.7kg only Dimensions (W×H×D) 423×43.6×447.2 Cooling Forced air cooling by internal fan. Complies with the European EMC directive 2004/108/EC for Class A test and measurement products.

  • Page 193: Psu Dimensions

    APPENDIX PSU Dimensions PSU 6-200, PSU 12.5-120, PSU 20-76, PSU 40-38, PSU 60-25 DC Power Supply Voltage Current 0 - 40V / 0 - 38A VOLTAGE CURRENT Lock/Local PROT Function Test Shift Output : Long Push Unlock ALM_CLR 447.2 423.0...

  • Page 194: Declaration Of Conformity

    Type of Product: Programmable DC Power Supply Model Number: PSU 6-200, PSU 12.5-120, PSU 20-76, PSU 40-38, PSU 60-25 are herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Law of Member States relating to Electromagnetic Compatibility (2004/108/EC) and Low Voltage Directive (2006/95/EC).
  • Page 195 INDEX NDEX Accessories ......... 12 USB/GPIB settings ..... 102 Conventions ........ 45 Alarm CV mode description ........27 Analog connector operation ........54 Declaration of conformity ..194 pin assignment ......115 Analog control Default settings ......183 output control ......128 reset ..........
  • Page 196 PSU Series User Manual Marketing multi-unit configuration .... 168 mult-unit function check ... 170 contact .......... 182 sockets configuration ....175 Messages ........185 sockets function check ....176 Model differences ...... 10 UART configuration ....164 OCP level ........51 UART function check....

This manual is also suitable for:

Psu 100-15Psu 300-5Psu 150-10Psu 600-2.6Psu 400-3.8Psu series

Table of Contents