Instructions

ManualsBrandsGW Instek ManualsBench power supply unitsPSW 800-1.44 Bench PSU (adjustable voltage) 0 - 800 V DC 0 - 1.44 A 360 W No. of outputs 1 x

Multi-Range DC Power Supply

PSW Series

USER MANUAL

GW INSTEK PART NO. 82SW-80400MI1

ISO-9001 CERTIFIED MANUFACTURER

Summary of content (184 pages)

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Multi-Range DC Power Supply PSW Series USER MANUAL GW INSTEK PART NO.
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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. Good Will Instrument Co., Ltd. No.
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SAFETY INSTRUCTIONS Table of Contents SAFETY INSTRUCTIONS ................................................... 5 GETTING STARTED ........................................................... 9 PSW Series Overview ........................... 10 Appearance .......................................... 15 Theory of Operation ............................. 22 OPERATION .................................................................... 35 Set Up .................................................. 37 Basic Operation .
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Table of Contents LED Display Format ........................... 161 PSW Specifications ............................ 162 PSW Dimensions ............................... 177 Declaration of Conformity .................. 182 INDEX ............................................................................
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SAFETY INSTRUCTIONS SAFETY 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. WARNING Warning: Identifies conditions or practices that could result in injury or loss of life.
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PSW 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 General Guideline CAUTION  Do not place any heavy object on the PSW.  Avoid severe impact or rough handling that leads to damaging the PSW.  Do not discharge static electricity to the PSW.  Use only mating connectors, not bare wires, for the terminals.
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SAFETY INSTRUCTIONS Cleaning the PSW Operation Environment  Disconnect the power cord before cleaning.  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.
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PSW 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.
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GETTING STARTED GETTING 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. PSW Series Overview ....................................................... 10 Series lineup ...................................................................................................
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PSW Series User Manual PSW Series Overview Series lineup The PSW series consists of 15 models, divided into 3 different model types covering 3 power capacities: Type I (360 Watt), Type II (720 Watt) and Type III (1080 Watt). Note Throughout the user manual, PSW 30, PSW 80, PSW 160, PSW 250 or PSW 800 will refer to any of the PSW models with a maximum voltage rating of 30V, 80V, 160V, 250V or 800V, respectively.
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GETTING STARTED Apart from the differences in output, each unit differs in size. The 720 and 1080 watt models are larger than the 360 watt models to accommodate the increase in power.
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PSW Series User Manual Interface  Ethernet port  Analog connector for analog voltage and current monitoring  USB host and device port Accessories Please check the contents before using the PSW.
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GETTING STARTED Download PSW-002 Simple IDC Tool PSW-003 Contact Removal Tool PSW-005 Series operation cable for 2 units. PSW-006 Parallel operation cable for 2 units. PSW-007 Parallel operation cable for 3 units. GRA-410-J Rack mount adapter (JIS) GRA-410-E Rack mount adapter (EIA) GUG-001 GPIB to USB adapter GTL-240 USB Cable 57RG-30B00201 Large filter (Type II/III) Name Description psw_cdc.
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PSW Series User Manual PSW-008 Basic Accessory Kit: (Air filter x1, Analog control protection dummy x1, Analog control lock level x1 Optional Accessories Part number Description GET-002 Extended terminal PSW-001 Accessory Kit: Pin contact x10, Socket x1, Protection cover x1 Download 14 PSW-002 Simple IDC Tool PSW-003 Contact Removal Tool PSW-006 Parallel operation cable for 2 units. PSW-007 Parallel operation cable for 3 units.
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GETTING STARTED Appearance PSW Front Panel 720W: PSW 30-72, 80-27, 160-14.4, 250-9, 800-2.88 PSW 30-72 Display Multi-Range DC Power Supply 720W VSR Voltage Voltage knob Current Current knob W CV V RMT ALM 20 40 60 80 100 %W DLY W CC A ISR Cover panel Function OVP/OCP Set Test Lock/Local PWR DSPL Output key Output Power switch Function keys USB A port 1080W: PSW 30-108, 80-40.5, 160-21.6, 250-13.5, 800-4.32 PSW 30-108 360W: PSW 30-36, 80-13.5, 160-7.2, 250-4.5, 800-1.
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PSW Series User Manual Function Keys The Function keys along with the Output key will light up when a key is active. Function OVP/OCP Display Indicators Set the over current or over voltage protection levels. Set Sets the current and voltage limits. Test Used to run customized scripts for testing. Lock/Local Locks or unlocks the panel keys to prevent accidentally changing panel settings. PWR DSPL Toggles the display from viewing V/A  V/W or A/W*.
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GETTING STARTED 20 40 60 80 100 %W Power bar Indicates the current power output as a percentage. Voltage Knob Voltage Sets the voltage. Current Knob Current Sets the current. Output Output Press to turn on the output. The Output key will light up when the output is active. USB USB A port for data transfer, loading test scripts etc. Power Switch Used to turn the power on/off.
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PSW Series User Manual Rear Panel 720W: PSW 30-72, 80-27, 160-14.4 Sense+ terminal Analog control connector USB B port Output terminal (+) Chassis ground Senseterminal SER.NO. LABEL Output terminal (-) Fan LAN LAN AC 100 47 63Hz 1080W: PSW 30-108, 80-40.5, 160-21.6 240V 1000VA MAX. AC Input 360W: PSW 30-36, 80-13.5, 160-7.2 AC Input SER.NO. LABEL LAN N AC 100 47 63Hz L AC 100 47 63Hz 240V 500VA MAX. 240V 1500VA MAX.
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GETTING STARTED 720W: PSW 250-9, 800-2.88 Sense+ terminal Analog control connector USB B port Output terminals +V Senseterminal V SN.C. S V SER.NO. LABEL Chassis ground Output terminals -V Fan LAN LAN AC 100 240V 47 63Hz 1000VA MAX. AC Input 1080W: PSW 250-13.5, 800-4.32 360W: PSW 250-4.5, 800-1.44 AC Input V SN.C. S LAN V SER.NO. LABEL N V SN.C. S V AC 100 240V 47 63Hz 500VA MAX. L AC 100 240V 47 63Hz 1500VA MAX.
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PSW Series User Manual Standard 26 pin MIL connector (OMRON XG4 IDC plug). Analog Control Connector The analog control connector is used to monitor current and voltage output, machine status (OVP, OCP, OTP etc.), and for analog control of the current and voltage output. Use an OMRON XG5 IDC socket as the mating socket. Positive (+) and negative (-) output terminals. Output Terminals (30, 80, 160 volt models) Chassis ground Sense (-S) and Sense (+S) terminals.
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GETTING STARTED USB B port The USB B port is used for remote control. Fans Temperature controlled fans Ethernet Port The ethernet port is used for remote control and digital monitoring from a PC. LAN Line Voltage Input Type I: PSW 30-36/80-13.5/ 160-7.2/250-4.5, 800-1.44 (Type I/TypeII) Type II: PSW 30-72/80-27/ 160-14.4/250-9, 800-2.88  Voltage Input: 100~240 VAC  Line frequency: 50Hz/60 Hz (Automatically switchable) Line Voltage Input (Type III) N L Type III: PSW 30-108/80-40.5/160-21.
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PSW Series User Manual Theory of Operation The theory of operation chapter describes the basic principles of operation, protection modes and important considerations that must be taken into account before use. Operating Area Description Background The PSW power supplies are regulated DC power supplies with a high voltage and current output. These operate in CC or CV mode within a wide operating range limited only by the output power.
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GETTING STARTED effective output is actually limited to the power limit of the unit. In this case the output current and voltage then depend purely on the load value. Below is a comparison of the operating areas of each power supply. PSW 800V Series Operating Area 2.88 4.32 800 Type I Type II Type III 30 25 20 15 10 5 0 Po… 0 2 1 Volt… Voltage (V) 0.45 0.9 1.35 1.44 900 800 700 600 500 400 300 200 100 0 Current (A) PSW 250V Series Operating Area 1.44 2.88 4.32 4.
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PSW Series User Manual PSW 160V Series Operating Area 14.4 21.6 160 Type I Type II Type III 30 25 20 15 10 5 0 Po… 0 10 5 Volt… Voltage (V) 2.25 4.5 6.75 7.2 180 160 140 120 100 80 60 40 20 0 PSW 80V Series Operating Area 9.0 100 20 40 60 80 0 Cur… 27 13.5 25 20 15 Current (A) 4.5 50 40.5 80 Type I Type II Type III 60 40 30 25 20 15 10 5 0 Po… 20 0 0 5 10 15 20 Volt… Voltage (V) 90 80 25 Current (A) 24 30 35 26.
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GETTING STARTED PSW 30V Series Operating Area 12 24 36 72 108 35 30 Type I Type II Type III 25 20 15 30 25 20 15 10 5 0 Po… 10 5 0 0 20 40 Volt… Voltage (V) 30 60 Current (A) 80 10 100 100 20 40 60 80 0 Cur… 120 CC and CV Mode CC and CV mode Description When the power supply is operating in 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.
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PSW Series User Manual (VSET), the load resistance (RL) and the critical resistance (RC). The critical resistance is determined by VSET/ISET. 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 VSET voltage but the current will be less than ISET. If the load resistance is reduced to the point that the current output reaches the ISET level, the power supply switches to CC mode.
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GETTING STARTED Slew Rate Theory The PSW has selectable slew rates for CC and CV mode. This gives the PSW 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. High Speed Priority mode disables slew rate settings for CC or CV mode. Slew Rate Priority mode allows for user adjustable slew rates for CC or CV mode. The rising and falling slew rate can be set independently.
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PSW Series User Manual when power is turned off and the load is disconnected. Without a bleed resistor, power may remain charged on the filter capacitors for some time and 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. Note By default the bleed resistance is on.
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GETTING STARTED PSW 250-4.5 PSW 250-9 PSW 250-13.5 PSW 800-1.44 PSW 800-2.88 PSW 800-4.32 0.00 ~ 55.55Ω 0.00 ~ 27.77Ω 0.00 ~ 18.51Ω 0.0 ~ 555.5Ω 0.0 ~ 277.8Ω 0.0 ~ 185.1Ω Alarms The PSW power supplies have a number of protection features. When one of the protection alarms are set, the ALM icon on the display will be lit. For details on how to set the protection modes, please see page 57. OVP Overvoltage protection (OVP) prevents a high voltage from damaging the load.
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PSW Series User Manual Considerations The following situations should be taken into consideration when using the power supply. Inrush current Caution Pulsed or Peaked loads 30 When the power supply switch is first turned 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.
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GETTING STARTED Current limit level Measured Ammeter current Reverse Current: Regenerative load When the power supply is connected to a regenerative load such as a transformer or inverter, reverse current will feed back to the power supply. The PSW 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. This description only applies when the bleed resistance is off.
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PSW Series User Manual Reverse Current: Accumulative energy. When the power supply is connected to a load such as a battery, reverse current may flow back to the power supply. To prevent damage to the power supply, use a reverse-currentprotection diode in series between the power supply and load.
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GETTING STARTED Grounding The output terminals of the PSW 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. Floating As the output terminals are floating, the load and all load cables must have an insulation capacity that is greater than the isolation voltage of the power supply.
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PSW Series User Manual Grounded output terminal If the positive or negative terminal is connected 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.
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OPERATION OPERATION Set Up ............................................................................. 37 Line Voltage Connection – Type III Models ....................................................... 37 Filter Installation ...................................................................................................... 39 Power Up .................................................................................................................. 40 Wire Gauge Considerations.......................
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PSW Series User Manual Setting the Test Script Settings .............................................................................. 89 Load Test Script from USB .................................................................................... 90 Run Test Script (Manual) ........................................................................................ 91 Run Test Script (Automatically at Startup)........................................................... 92 Export Test Script to USB ............
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OPERATION Set Up Line Voltage Connection – Type III Models Background Warning The Type III (PSW 30-108/80-40.5/16021.6/250-13.5/800-4.32) models use a universal power input that can be used with 100 and 200 VAC systems. To connect or replace the power cord (GW Instek part number: 4320-91001101, use the procedure below: The following procedure should only be attempted by competent persons. Ensure the AC power cord is not connected to power. Removal 1. Turn off the power switch. 1 2.
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PSW Series User Manual 4. Slide the cover off the AC terminals. 4 5. Remove the AC power cord wires. 5 1. Connect the AC power cord wires to the AC input terminals.  Line  White/Blue  Neutral (N) Green/GreenyellowGND ( ) Black/Brown  Line (L) L Neutral  N Ground Installation 2. Set the cover back over the AC terminals. 2 3. Re-install the power cord cover. 4. Screw the power cord sheath back onto the cover.
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OPERATION Filter Installation Background Steps The PSW has a small filter (GW Instek part number, 57RG-30B00101) that must first be inserted under the control panel before operation. The small filter must be inserted for all model types (Type I/II/III). 1. Insert the small filter in the open area under the control panel. Type II shown as an example 2. The unit is now ready to power up.
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PSW Series User Manual Power Up Steps 1. Type I or II: Connect the power cord to the rear panel socket. Type III: Connect the power cord to the universal power input. Page 37 2. Press the POWER key. If used for the first time, the default settings will appear on the display, otherwise The PSW recovers the state right before the power was last turned OFF. For default configuration settings, see page 158. V A CAUTION The power supply takes around 8 seconds to fully turn on and shutdown.
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OPERATION Wire Gauge Considerations Background Before connecting the output terminals to a 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. Recommended wire gauge Wire Gauge Nominal Cross Maximum Current Section 20 0.5 9 18 0.75 11 18 1 13 16 1.5 18 14 2.
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PSW Series User Manual Output Terminals PSW-30/80/160 Background Before connecting the output terminals to the 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 M4 sized screws or M8 sized bolts. WARNING Steps Dangerous voltages. Ensure that the power to the instrument is disabled before handling the power supply output terminals.
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OPERATION 5. Choose a suitable crimp for the terminals. 6. If using voltage sense, remove the Page 68 sense terminal joining plates and connect sensing wires to the load(s). 7. Connect the positive load cable to the positive output terminal and the negative cable to the negative output terminal. 8. Reattach the output terminal cover.
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PSW Series User Manual Using the Output Terminal Cover PSW-30/80/160 Steps 1. Remove the screw holding the top cover to the bottom cover. 2. Line-up the bottom cover with the notches in the output terminals. 3. Place the top terminal cover over the bottom cover. 1 2 Details 3 4. Use your thumb to slide the terminal covers shut, as shown in the diagram below. 5. When the top and bottom covers are flush, reinsert the screw that was removed in step 1.
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OPERATION Removal Reverse the procedure to remove the terminal covers.
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PSW Series User Manual Output Terminals PSW-250/800 Background The high voltage models (PSW 250 and PSW 800 models) use a 9 pin socket for the output voltage and sense connections. The corresponding plugs (GW part number 39BT50900401 //DECA SwitchLab MC420-38109Z) should be used to connect the terminals to the appropriate cable.
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OPERATION -V: -V terminals (x3) -S: -Sense terminal NC: Not connected +S: +Sense terminal +V: +V terminals (x3) Output Connector Pinout -V -S N.C. +S +V Wiring the Connector Plug Loosen Tighten b a. a c b. Insert a wire that has had at least ~7mm stripped from the insulation. c. Steps Unscrew the appropriate terminal anticlockwise to release the receptacle. Tighten the receptacle by screwing clockwise. 1. Turn the power switch off. 2. Remove the output terminal cover. Page 50 3.
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PSW Series User Manual WARNING Please note the wire gauge used and the capacity of the plug/socket. It may be necessary to wire the load to a number of terminals to offset the capacity over a number of terminals. 6. If using local sense, connect the -S pin to a -V pin, and connect the +S pin to a +V pin. V SN.C. S V 7. If not using local sense, see the remote sense section to wire the sense terminals for remote sensing. Page 68 Page 33 8.
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OPERATION Local Sense Wiring To negative potential -V To positive potential +V Remote Sense Wiring To negative potential -V -S +S To positive potential +V 49
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PSW Series User Manual Using the Output Terminal Cover PSW-250/800 Steps 1. Screw the bottom cover onto the rear panel using the two M4 screws. 1 2. Slide the top cover over the bottom cover. 2 3. Finally, secure the top cover with the screw in the center of the top cover. 3 Removal 50 Reverse the procedure to remove the terminal covers.
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OPERATION Using the Rack Mount Kit Background Rack mount diagram The PSW series has an optional Rack Mount Kit (GW Instek part number: [JIS] GRA-410-J, [EIA] GRA-410-E[EIA]) that can be used to hold 6x PSW Type I models, 3x Type II models, 2x Type III models or a combination of all models (1x Type I, 1x Type II and 1x Type III).
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PSW Series User Manual 1. Repeatedly press the Voltage knob until the last digit is highlighted. This will allow the voltage to be edited in 0.01 volt steps. Voltage 2. Turn the Voltage knob till 0.05 volts is shown. V → A Voltage V A 3. Repeatedly press the Voltage knob until the first digit is highlighted. This will allow the voltage to be edited in 1 volt steps. 4. Turn the Voltage knob until 10.05 is shown.
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OPERATION Reset to Factory Default Settings Background Steps The F-88 configuration setting allows the PSW to be reset back to the factory default settings. See page 158 for the default factory settings. 1. Press the Function key. The Function key will light up. Function 2. The display should show F01 on the top and the configuration setting for F-01 on the bottom. 3. Rotate the Voltage knob to change the F setting to F-88 (Factory Set Value). 4.
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PSW Series User Manual View System Version and Build Date Background Steps The F-89 configuration setting allows you to view the PSW version number, build date, keyboard version, analog-control version, kernel build, test command version, test command build date, and the USB driver version. 1. Press the Function key. The Function key will light up. Function 2. The display should show F01 on the top and the configuration setting for F-01 on the bottom. 3.
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OPERATION F-89 0-XX: PSW Main Program Version 1-XX: PSW Main Program Version 2-XX: PSW Main Program Build OnYear. 3-XX: PSW Main Program Build OnYear. 4-XX: PSW Main Program Build OnMonth. 5-XX: PSW Main Program Build OnDay. 6-XX: Keyboard CPLD version. 7-XX: Keyboard CPLD version. 8-XX: Analog CPLD version. 9-XX: Analog CPLD version. A-XX: Reserved. B-XX: Reserved. C-XX: Kernel Build On-Year. D-XX: Kernel Build On-Year. E -XX: Kernel Build On-Month. F-XX: Kernel Build On-Day. G-XX: Test Command Version.
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PSW Series User Manual Example Keyboard CPLD Version: 0x030c 6-03: Keyboard CPLD Version. 7-0c: Keyboard CPLD Version. Example Analog CPLD Version: 0x0427 8-04: Analog CPLD Version. 9-27: Analog CPLD Version. Example Kernel Version: 2013/03/22 C-20: Kernel Build On-Year. D-13: Kernel Build On-Year. E-03: Kernel Build On-Month. F-22: Kernel Build On-Day. Example Test Command Version: V01:00, 2011/08/01 G-01: Test Command Version. H-00: Test Command Version. I-20: Test Command Build On-Year.
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OPERATION Basic Operation This section describes the basic operations required to operate the power supply.  Setting OVP/OCP → from page 57  C.V. mode → from page 59  C.C. mode → from page 63  Display modes → page 66  Panel lock → page 67  Remote sensing → from page 68 Before operating the power supply, please see the Getting Started chapter, page 9.
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PSW Series User Manual V ALM A Before setting the OVP or OCP level:  Ensure the load is not connected.  Ensure the output is set to off. Setting Ranges PSW (360W) 30-36 80-13.5 160-7.2 250-4.5 800-1.44 OVP Range (V) 3-33 8-88 16-176 20-275 20-880 OCP Range (A) 3.6-39.6 1.35-14.85 0.72-7.92 0.45-4.95 0.144-1.584 PSW (720W) 30-72 80-27 160-14.4 250-9 800-2.88 OVP Range (V) 3-33 8-88 16-176 20-275 20-880 OCP Range (A) 5-79.2 2.7-29.7 1.44-15.84 0.9-9.9 0.288-3.
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OPERATION OVP Level 3. Use the Voltage knob to set the OVP level. Voltage OCP Level 4. Use the Current knob to set the OCP level, or to turn OCP off. Current 5. Press OVP/OCP again to exit. The OVP/OCP indicator will turn off. Power switch trip Set F-95 (Power switch trip) to 1 (to Page 114 disable the power switch trip) or to 0 (to enable the power switch trip) and save.
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PSW Series User Manual Background Steps Before setting the power supply to C.V. mode, ensure:  The output is off.  The load is connected. 1. Press the Function key. The Function key will light up. Function 2. The display should show F01 on the top and the configuration setting for F-01 on the bottom. 3. Rotate the Voltage knob to change the F setting to F-03 (V-I Mode Slew Rate Select). 4. Use the Current knob to set the F03 setting.
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OPERATION 6. If CV Slew Rate Priority was chosen as the operating mode, repeat steps 3~5 to set F-04 (Rising Voltage Slew Rate) and the F-05 (Falling Voltage Slew Rate) and save. F-04 / F-05 0.1V/s~60V/s (PSW 30-XX) 0.1V/s~160V/s (PSW 80-XX) 0.1V/s~320V/s (PSW 160-XX) 0.1V/s~500.0V/s (PSW 250-XX) 1V/s~1600V/s (PSW 800-XX) 7. Press the Function key again to exit the configuration settings. The function key light will turn off. Note Function 8.
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PSW Series User Manual CV V 20 40 60 80 100 %W CV and the Power Bar will become illuminated (top left & center) A Note Only the voltage level can be altered when the output is on. The current level can only be changed by pressing the Set key. For more information on the Normal Function Settings (F-00 ~ F-61, F-88~F-89) see page 102.
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OPERATION Set to C.C. 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 22. C.C. and C.V. mode have two selectable slew rates: High Speed Priority and Slew Rate Priority. High Speed Priority will use the fastest slew rate for the instrument while Slew Rate Priority will use a user-configured slew rate.
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PSW Series User Manual F-03 1 = CC High Speed Priority 3 = CC Slew Rate Priority 5. Press the Voltage knob to save the configuration setting. ConF will be displayed when successful. Voltage 6. If CC Slew Rate Priority was chosen as the operating mode, set F-06 (Rising Current Slew Rate) and F-07 (Falling Current Slew Rate) and save. F-06 / F-07 0.01A/s~72.00A/s (PSW 30-36) 0.1A/s~144.0A/s (PSW 30-72) 0.1A/s~216.0A/s (PSW 30-108) 0.01A/s~27.00A/s (PSW 80-13.5) 0.01A/s~54.00A/s (PSW 80-27) 0.01A/s~81.
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OPERATION Note 8. Use the Voltage knob to set the voltage limit (crossover point). Voltage 9. Use the Current knob to set the current. Current Notice the Set key becomes illuminated when 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 key becomes illuminated.
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PSW Series User Manual Display Modes The PSW power supplies allow you to view the output in three different modes: voltage and current, voltage and power or current and power. Steps 1. Press the PWR/DSPL key. The PWR DSPL key lights up. PWR DSPL 2. The display changes to voltage and power (V/W). 3. To switch between displaying A/W and V/W, simply press the corresponding Voltage or Current knob. For example: when in A/W mode, press the Voltage knob to display V/W.
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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. Activate the panel lock Press the Lock/Local key to active the panel lock. The key will become illuminated.
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PSW Series User Manual Remote Sense Remote sense is used to compensate for the voltage drop seen across load cables due to the resistance inherent in the load cables. The remote sense terminals are connected to the load terminals to determine the voltage drop across the load cables. Remote sense can compensate up to 0.6 volts for 30V/80V/160V models and 1V for 250V/800V models (compensation voltage). Load cables should be chosen with a voltage drop less than the compensation voltage.
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OPERATION 2. Operate the instrument as normal. Page 57 See the Basic Operation chapter for details. Parallel PSW Units 1. Connect the Sense+ terminals to the positive potential of the load. Connect the Senseterminals to the negative potential of the load. PSW #1 Load Output Input Output Input Page 42 Sense Sense PSW #2 Output Output Sense Sense 2. Operate the instrument as normal. Page 73 See the Parallel Operation chapter for details.
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PSW Series User Manual Serial PSW Units 1. a. Connect the 1st Sense+ terminal to the positive potential of the load. b. Connect the 1st Sense- terminal to the positive output terminal of the second PSW unit. c. Connect the 2nd Sense+ terminal to the positive terminal of the second PSW unit. d. Connect the 2nd Sense- terminal to negative terminal of the load. PSW #1 Load a Output Input Output Input Page 42 Sense Sense b d PSW #2 Output c Output Sense Sense 2. Operate the instrument as normal.
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OPERATION Wire Shielding and Load line impedance To help to minimize the oscillation due to the inductance and capacitance of the load cables, use an electrolytic capacitor in parallel with the load terminals. To minimize the effect of load line impedance use twisted wire pairing.
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PSW Series User Manual Parallel / Series Operation This section describes the basic operations required to operate the power supply in series or parallel. Operating the PSW series in parallel increases the total power output of the power supply units. When used in series, the total output voltage of the power supplies can be increased.
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OPERATION Master-Slave Parallel Overview Background When connecting the PSW power supplies in parallel, up to 3 units can be used in parallel and all units must be of the same model. The Analog Control Connector is used as the interface for parallel the connections. Parallel Connection Overview Limitations Ext-V Ext-R VMON IMON Analog Control Connectors When the units are used in parallel, a number of precautions and limitations apply.
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PSW Series User Manual OVP/ OCP  The master unit can shut down slave units when OVP/OCP is tripped on the master unit (if the slave connector is wired for shut down on alarm).  OVP/OCP can be independently tripped on each slave unit, however the shutdown of the power or output of the unit is disabled. Only the alarm will be enabled. Remote monitoring  Voltage monitoring (VMON) and current monitoring (IMON) are only supported on the master unit.
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OPERATION Output Voltage/ Output Current Bleeder Control  The Master unit is used to control the bleeder settings. The bleeder resistors in all the slave units are always turned off when in parallel mode. Model Single unit 2 units 3 units PSW 30-36 30V 30V 30V 36A 72A 108A PSW 80-13.5 80V 80V 80V 13.5A 27A 40.5A PSW 160-7.2 160V 160V 160V 7.2A 14.4A 21.6A PSW 250-4.5 250V 250V 250V 4.5A 9A 13.5A PSW 800-1.44 800V 800V 800V 1.44A 2.88A 4.
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PSW Series User Manual Master-Slave Parallel Connection Master-Slave Connector The Analog Control Connector is used for both serial and parallel connections. The way the connector is configured determines the behavior of the master and slave units. For the complete connector pin assignment, see page 117. Analog Connector Connection To operate the power supplies in parallel, connect the analog connectors on the master and slave units as shown in the diagrams below.
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OPERATION Master with 1 slave unit: 23 21 17 15 13 11 20 12 17 15 2 24 20 Master unit 3 12 Slave Unit 1 11 I MON 1 CURRENT SHARE 21 OUTPUT ON STATUS 24 OUT ON/OFF CONT 20 ALM STATUS 12 SHUTDOWN 17 STATUS COM 17 STATUS COM 15 FEEDBACK 15 FEEDBACK 13 CURRENT_SUM_1 3 CURRENT SUM OUT 12 SHUTDOWN 20 ALM STATUS 2 D COM Parallel Output Connection 1 Master unit + Slave unit 1 Load - Slave unit 2 Steps 1. Ensure the power is off on all power supplies. 2.
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PSW Series User Manual 5. Connect the master and slave unit in parallel as shown above. 6. Reattach the terminal covers. Note Page 44 Ensure the load cables have sufficient Page 41 current capacity. Re-attach the Protection dummy plug when not in use.
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OPERATION Master-Slave Parallel Operation Master-Slave Configuration Steps Before using the power supplies in parallel, the master and slave units need to be configured. 1. Configure the OVP and OCP settings for the master unit. Page 57 2. For each unit, hold the Function key while turning the power on to enter the power on configuration settings.
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PSW Series User Manual Master-Slave Operation Only operate the power supplies in parallel if the units are configured correctly. 1. Turn on the master and slave units. The slave unit(s) will show a blank display. Master unit Slave units 2. Operation of all units is controlled Page 57. via the master unit. Operation of the master unit is the same as for a single unit. See the Basic Operation chapter. 3. Press the Output key to begin.
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OPERATION Master-Slave Series Overview Background When connecting PSW power supplies in series, up to 2 units* can be used in series and all units must be of the same model. The Analog Control Connector is used as the interface for serial connections. When the units are used in series, a number of precautions and limitations apply. Please read this overview before operating the power supplies in series.
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PSW Series User Manual OVP/OCP  The master unit can shut down the slave unit when OVP/OCP is tripped on the master unit (if the slave connector is wired for shut down on alarm).  OVP and OCP level is determined by the master OVP and OCP level. The OVP and OCP level on the slave unit is ignored. Remote monitoring  Voltage monitoring (VMON) and current monitoring (IMON) are only supported on the master unit.  The VMON voltage represents the total voltage of the all the serialized units.
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OPERATION Output Voltage/ Output Current Bleeder Control  The Master unit is used to control the bleeder settings. The bleeder resistor is always turned on for the slave unit in series mode. Model Single unit 2 units PSW 30-36 30V 60V 36A 36A PSW 80-13.5 80V 160V 13.5 13.5A PSW 160-7.2 160V 320V 7.2A 7.2A PSW 30-72 30V 60V 72A 72A PSW 80-27 80V 160V 27A 27A PSW 160-14.4 160V 320V 14.4A 14.4A PSW 30-108 30V 60V 108A 108A PSW 80-40.5 80V 160V 40.5A 40.5A PSW 160-21.6 160V 320V 21.6A 21.
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PSW Series User Manual Analog Connector Connection To operate the power supplies in series, connect the analog connectors on the master and slave unit as shown in the diagram below. Alternatively, the optional PSW-005 cable is pre-configured for serial use.
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OPERATION 5. Connect the master and slave unit in series as shown above. 6. Reattach the terminal cover. Note Ensure load cables have sufficient current capacity. Page 44 Page 41 Re-attach the protection dummy plug when not in use. Master-Slave Series Operation Master-Slave Configuration Before using the power supplies in series, the master and slave units need to be configured. 1. Configure the OVP and OCP settings for the master unit. Page 57 2.
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PSW Series User Manual Note Master-Slave Operation Configuration settings can be checked for both the master and slave units by pressing the Function key. Only operate the power supplies in series if the units are configured correctly. 1. Turn on the master and slave unit. The slave unit will only show the combined voltage of both units while the master unit will show both the combined voltage and the current of both units. Master unit Slave unit V V A 2.
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OPERATION Test Scripts This section describes how to use the Test function to run, load and save test scripts for automated testing. The Test function is useful if you want to perform a number of tests automatically. The PSW 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.
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PSW Series User Manual Test Script File Format Background The test files are saved in *.tst file format. Each file is saved as tXXX.tst, where XXX is the save file number 001~010. Test Script Settings Test Run Runs the chosen test script from the internal memory. A script must first be loaded into the internal memory before it can be run. See the test function Test Save, below. The script will run as soon as the test function is started.
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OPERATION Setting the Test Script Settings Steps The test script settings (T-01~T-04) are set with the Test key. 1. Press the Test key. The Test key will light up. Test 2. The display will show T-01 on the top and the memory no. for T-01 on the bottom. Test Setting Memory number 3. Rotate the Voltage knob to change the T setting (Test setting). Test Run Test Load Test Export Test Remove Test Memory T-01 T-02 T-03 T-04 T-05 4. Rotate the Current knob to choose a memory number.
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PSW Series User Manual Exit Press the Test key again to exit the Test settings. The Test key light will turn off. Test Load Test Script from USB Overview Before a test script can be run, it must first be loaded into a one of the 10 memory save slots. Before loading a test script into memory:  Ensure the script file is placed in the root directory.  Ensure the file name number corresponds to the memory number that you wish to save to. For example: A test file named t001.
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OPERATION Note If the USB drive is not recognized, check to see that the function settings for F-20 = 1 (page 106). If not, reinsert the USB flash drive. 3. Configure T-02 (Test Load) to 1~10 Page 89 (save memory slot) T-02 range 1~10 (t001 ~t010) 4. The script will now be available in the memory slot the script was saved to. Note Error messages: If you load a file that is not present on the USB drive “Err 002” will be displayed on the display.
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PSW Series User Manual Note Error messages: If you try to run a test script from an empty memory location “Err 003” will be displayed on the display. Note When a script starts to run, there is no way to abort the script. Pressing the Output key has no effect. If you wish to stop a test early, turn the power off. Run Test Script (Automatically at Startup) Overview Steps The power supply can be configured to automatically run a test script at startup. Page 90 1.
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OPERATION Note Note *Setting F-92 to 0 or 1 will disable loading a test script at startup. 0 will turn the output off at startup. 1 will turn the output on at startup. See the power on configuration settings for details, page 110. When a script starts to run, there is no way to abort the script. Pressing the Output key has no effect. If you wish to stop a test early, turn the power off.
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PSW Series User Manual Note If the USB drive is not recognized, check to see that the function settings for F-20 = 1 (page 106). If not, reinsert the USB flash drive. 3. Configure T-03 (Test Export) to 0~10 (save memory slot) Page 89 T-03 range 1~10 4. The script will now be copied to the USB flash drive. Note Error messages: If you try to export a test script from an empty memory location “Err 003” will be displayed on the display.
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OPERATION Note Error messages: If you try to remove a test script from an empty memory location “Err 003” will be displayed on the display. Checking the Available Memory Overview The T-05 function displays the amount of internal memory that is left on the unit to load test scripts. The displayed units are in kilobytes (1024 bytes). Steps Select T-05 (Test Memory). The available memory in kilobytes is displayed.
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PSW Series User Manual CONFIGURATION Configuration .................................................................. 97 Configuration Table ................................................................................................ 97 Normal Function Settings .................................................................................... 102 USB/GPIB Settings .............................................................................................. 106 LAN Settings .........................
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CONFIGURATION Configuration Configuration of the PSW power supplies is divided into five different configuration settings: Normal Function, USB/GPIB, LAN, Power ON Configuration, Calibration Settings and System 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. The other configuration settings can be changed when the unit is already on.
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PSW Series User Manual Rising current slew rate F-06 Falling current slew rate F-07 98 0.01A/s~72.00A/s (PSW 30-36) 0.1A/s~144.0A/s (PSW 30-72) 0.1A/s~216.0A/s (PSW 30-108) 0.01A/s~27.00A/s (PSW 80-13.5) 0.01A/s~54.00A/s (PSW 80-27) 0.01A/s~81.00A/s (PSW 80-40.5) 0.01A/s~14.40A/s (PSW 160-7.2) 0.01A/s~28.80A/s (PSW 160-14.4) 0.01A/s~43.20A/s (PSW 160-21.6) 0.001A/s ~ 9.000A/s (PSW 250-4.5) 0.01A/s ~ 18.00A/s (PSW 250-9) 0.01A/s ~ 27.00A/s (PSW 250-13.5) 0.001A/s ~ 2.880A/s (PSW 800-1.44) 0.001A/s ~ 5.
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CONFIGURATION Internal resistance setting F-08 Bleeder circuit control F-09 Buzzer ON/OFF control F-10 Measurement Average F-17 Setting 0.000Ω~0.833Ω (PSW 30-36) 0.000Ω~0.417Ω (PSW 30-72) 0.000Ω~0.278Ω (PSW 30-108) 0.000Ω~5.926Ω (PSW 80-13.5) 0.000Ω~2.963Ω (PSW 80-27) 0.000Ω~1.975Ω (PSW 80-40.5) 0.000Ω~22.222Ω (PSW 160-7.2) 0.000Ω~11.111Ω (PSW 160-14.4) 0.000Ω~7.407Ω (PSW 160-21.6) 0.00Ω ~ 55.55Ω (PSW 250-4.5) 0.00Ω ~ 27.77Ω (PSW 250-9) 0.00Ω ~ 18.51Ω (PSW 250-13.5) 0.0Ω ~ 555.5Ω (PSW 800-1.44) 0.
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PSW Series User Manual IP Address-3 IP Address-4 Subnet Mask-1 Subnet Mask-2 Subnet Mask-3 Subnet Mask-4 Gateway-1 Gateway-2 Gateway-3 Gateway-4 DNS address -1 DNS address -2 DNS address-3 DNS address-4 Sockets active Web Server active Web password active Web setting password System Settings F-41 F-42 F-43 F-44 F-45 F-46 F-47 F-48 F-49 F-50 F-51 F-52 F-53 F-54 F-57 F-59 F-60 F-61 Factory Set Value F-88 Show Version F-89 100 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255 0~255
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CONFIGURATION Power On Configuration Settings* CC Control F-91 Power-ON Output F-92 Master/Slave F-93 External Out Logic Power Switch trip Calibration Settings* Calibration F-94 F-95 0 = Panel control (local) 1 = External voltage control 2 = External resistance control (Ext-R 10kΩ = Vo, max) 3 = External resistance control (Ext-R 10kΩ = 0) 0 = Panel control (local) 1 = External voltage control 2 = External resistance control (Ext-R 10kΩ = Io,max) 3 = External resistance control (Ext-R 10kΩ = 0) 0 =
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PSW Series User Manual Normal Function Settings Output ON Delay Time Delays turning the output on for a designated 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. The Output ON Delay Time setting is disabled when the output is set to external control. DLY F-01 Output OFF Delay Time 0.00s~99.99s Delays turning the output off for a designated amount of time.
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CONFIGURATION V-I Mode Selects High Speed Priority or Slew Rate 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. Note: CC and CV Slew Rate Priority mode are disabled when voltage/current output is set to external control.
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PSW Series User Manual Falling Voltage Slew Rate Sets the falling voltage slew rate. Only applicable if V-I Mode is set to CV Slew Rate Priority. F-05 0.01V/s~60V/s (PSW 30-XX) 0.1V/s~160V/s (PSW 80-XX) 0.1V/s~320V/s (PSW 160-XX) 0.1V/s~500.0V/s (PSW 250-XX) 1V/s~1600V/s (PSW 800-XX) Rising Current Slew Rate Sets the rising current slew rate. Only applicable if V-I Mode is set to CC Slew Rate Priority. F-06 0.01A/s~72.00A/s (PSW 30-36) 0.1A/s~144.0A/s (PSW 30-72) 0.1A/s~216.0A/s (PSW 30-108) 0.01A/s~27.
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CONFIGURATION Falling Current Slew Rate Sets the falling current slew rate. Only applicable if V-I Mode is set to CC Slew Rate Priority. F-07 0.01A/s~72.00A/s (PSW 30-36) 0.1A/s~144.0A/s (PSW 30-72) 0.1A/s~216.0A/s (PSW 30-108) 0.01A/s~27.00A/s (PSW 80-13.5) 0.01A/s~54.00A/s (PSW 80-27) 0.01A/s~81.00A/s (PSW 80-40.5) 0.01A/s~14.40A/s (PSW 160-7.2) 0.01A/s~28.80A/s (PSW 160-14.4) 0.01A/s~43.20A/s (PSW 160-21.6) 0.001A/s~9.000A/s (PSW 250-4.5) 0.01A/s~18.00A/s (PSW 250-9) 0.01A/s~27.00A/s (PSW 250-13.5) 0.
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PSW Series User Manual Bleeder Control Bleeder control turns ON/OFF the bleeder resistor. When set to AUTO the bleeder resistor is automatically turned on when the output is turned on and turned off when the output is turned off. Bleeder resistors discharge the filter capacitors after power is turned off as a safety measure. The AUTO setting is only applicable to firmware version 1.59 or above. F-09 0 = OFF, 1 = ON, 2 = AUTO Buzzer ON/OFF Turns the buzzer sound on or off.
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CONFIGURATION Rear Panel USB State Rear Panel USB Mode Displays the rear panel USB-B port state. This setting is not configurable. 0 = Absent, 2 = USB-CDC, F-21 3 = GPIB-USB adapter Sets the rear panel USB mode. Note: Option #3, USB CDC Full Speed Only, can be used to reduce the data transmission speed when there are sources of interference in the operating environment. This option is only available for firmware version 1.42 and above.
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PSW Series User Manual Subnet Mask 1~4 Sets the subnet mask. The subnet mask is split into four parts. (F-43 : F-44 : F-45: F-46) (0~255 : 0~255 : 0~255 : 0~255) Gateway 1~4 Sets the gateway address. The gateway address is split into 4 parts. (F-47 : F-48 : F-49 : F-50) (0~255 : 0~255 : 0~255 : 0~255) DNS Address 1~4 Sets the DNS address. The DNS address is split into 4 parts. (F-51 : F-52 : F-53 : F-54) (0~255 : 0~255 : 0~255 : 0~255) Sockets active Enables WebSocket connections.
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CONFIGURATION Show Version Displays the PSW version number, build date, keyboard version, analog-control version, kernel build, test command version and test command build date.
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PSW Series User Manual Power On Configuration Settings CV Control Sets the constant voltage (CV) control mode between local and external voltage/resistance control. For external voltage control, see page 119 (External Voltage Control of Voltage Output) and page 124 (External Resistance Control of Voltage Output).
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CONFIGURATION Master/Slave Sets the power supply as master or slave. See the parallel/series operation for details, page 72. F-93 0 = Master/Local 1 = Master/Parallel1 2 = Master/Parallel2 3 = Slave/Parallel 4 = Slave/Series (Only for 30V, 80V, 160V models) External Out Logic Sets the external logic as active high or low. F-94 0= High ON, 1 = Low ON Power Switch Trip Turns the power off if enabled when the protection settings are tripped.
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PSW Series User Manual Setting Normal Function Settings The normal function settings (F-01~F-61, F88~F-89) can be easily configured with the Function key.   Note Ensure the load is not connected. Ensure the output is off. Function setting F-89 (Show Version) can only be viewed, not edited. Configuration settings F-90~F-95 cannot be edited in the Normal Function Settings. Use the Power On Configuration Settings. See page 114 for details. Steps 1. Press the Function key.
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CONFIGURATION 5. Press the Voltage knob to save the configuration setting. ConF will be displayed when successful. Exit Press the Function key again to exit the configuration settings. The function key light will turn off.
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PSW Series User Manual Setting Power On Configuration Settings Background The Power On configuration settings can only be changed during power up to prevent the configuration settings being inadvertently changed.   Steps Ensure the load is not connected. Ensure the power supply is off. 1. Hold the Function key whilst turning the power on. 2. The display will show F-90 on the top and the configuration setting for F-90 on the bottom. 3. Rotate the Voltage knob to change the F setting.
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CONFIGURATION 5. Press the Voltage knob to save the configuration setting. ConF will be displayed when successful. Exit Voltage Cycle the power to save and exit the configuration settings.
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PSW Series User Manual ANALOG 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. Analog Remote Control Overview ................................... 117 Analog Control Connector Overview................................................................. 117 External Voltage Control of Voltage Output ...............
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ANALOG CONTROL Analog Remote Control Overview The PSW power supply series have a number of analog control options. The Analog Control connectors are used to control output voltage and current using external voltage or resistance. The power supply output and power switch can also be controlled using external switches.
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PSW Series User Manual D COM CURRENT SUM OUT EXT-V CV CONT EXT-V CC CONT EXT-R CV CONT PIN1 EXT-R CV CONT PIN2 EXT-R CC CONT PIN1 EXT-R CC CONT PIN2 V MON I MON SHUTDOWN CURRENT_SUM_ 1 CURRENT_SUM_ 2 FEEDBACK 118 2 Connected to the (–S) sense- terminal when remote sense is used. Connected to the negative output terminal when remote sense is not used. 3 Current sum output signal when used in parallel mode. 4 External voltage control of the voltage output.
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ANALOG CONTROL A COM STATUS COM CV STATUS CC STATUS ALM STATUS OUTPUT ON STATUS POWER OFF STATUS N.C. OUT ON/OFF CONT SER SLV IN N.C. 16 Analog signal common. Connected to the senseterminal when remote sense is used. Connected to the negative output terminal when remote sense is not used. 17 Common for status signals 18, 19, 20, 21 and 22. 18 Turns on when CV mode is active. (photo coupled open collector output) 19 Turns on when CC mode is active.
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PSW Series User Manual Connection When connecting the external voltage source to the MIL connectors, use shielded or twisted paired wiring. EXT-V PSW 4 ＋－ Analog connector 16 2 core shielded wire or twisted pair Pin16 → EXT-V (-) Pin4 → EXT-V (+) Wire shield → negative (-) output terminal    Connection- alt.
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ANALOG CONTROL Page 114 2. Set the F-90 power on configuration setting to 1 (CV control – Ext voltage).  Be sure to cycle the power after the power on configuration has been set. 3. Press the Function key and confirm the new configuration settings (F90=1). 4. Press the Output key. The voltage can now be controlled with the External voltage. Note Function Output The input impedance for external voltage control is 10kΩ. Use a stable voltage supply for the external voltage control.
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PSW Series User Manual External Voltage Control of Current Output Background External voltage control of the current output is accomplished using the MIL-26 connector on the rear panel. A voltage of 0~10V is used to control the full scale current of the instrument, where: Output current = full scale current × (external voltage/10) Connection When connecting the external voltage source to the MIL connectors, use shielded or twisted paired wiring.
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ANALOG CONTROL Connection- alt. shielding If the wire shield needs to be grounded at the voltage source (EXT-V), then the shield cannot also be grounded at the negative (-) terminal output of the PSW power supply. This would short the output. EXT-V PSW 5 ＋－ Analog connector 16 2 core shielded wire or twisted pair    Steps Output Terminal Pin16 → EXT-V (-) Pin5 → EXT-V (+) Wire shield → EXT-V ground (GND) 1. Connect the external voltage according to the connection diagrams above. Page 114 2.
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PSW Series User Manual Note The input impedance for external voltage control is 10kΩ. Use a stable voltage supply for the external voltage control. Note CV and CC Slew Rate Priority are disabled for V-I mode (F-03) when using external voltage control. See the normal function settings on page 102. CAUTION Ensure the voltage polarity is correct when connecting the external voltage. Ensure no more than 10.5 volts are input into the external voltage input.
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ANALOG CONTROL Note The Ext-R configuration is recommended for safety reasons. In the event that the cables become accidentally disconnected, the voltage output will drop to zero. Under similar circumstances using Ext-R , an unexpected high voltage would be output. If switches are used to switch between fixed resistances, use switches that avoid creating open circuits. Use short-circuit or continuous resistance switches.
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PSW Series User Manual 4. Press the Output key. The voltage can now be controlled with the External resistance. Note Output Ensure the resistor(s) and cables used exceed the isolation voltage of the power supply. For example: insulation tubes with a withstand voltage higher than the power supply can be used. When choosing an external resistor ensure the resistor can withstand a high degree of heat.
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ANALOG CONTROL Note The Ext-R configuration is recommended for safety reasons. In the event that the cables become accidentally disconnected, the current output will drop to zero. Under similar circumstances using Ext-R , an unexpected high current would be output. If switches are used to switch between fixed resistances, use switches that avoid creating open circuits. Use short-circuit or continuous resistance switches.
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PSW Series User Manual 3. Press the Output key. The current can now be controlled with the External resistance. Note Output Ensure the resistor(s) and cables used exceed the isolation voltage of the power supply. For example: insulation tubes with a withstand voltage higher than the power supply can be used. When choosing an external resistor ensure the resistor can withstand a high degree of heat.
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ANALOG CONTROL Connection Switch PSW 2 Analog connector 24 2 core shielded wire or twisted pair    Steps Output Terminal Pin2 → Switch Pin24 → Switch Wire shield → negative (-) output terminal 1. Connect the external switch according to the connection diagrams above. Set F-94 (External output logic) in Page 114 the power on configuration settings to 0 (High = On) or 1 (Low = On).  Be sure to cycle the power after setting the power on configuration settings. 2.
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PSW Series User Manual Note When using a switch over long distances, please use a switch relay to extend the line from the coil side of the relay. Switch Relay Line extention 2 Analog connector 24 Output If a single switch control is to be used for multiple Terminal units, please isolate each instrument. This can be achieved by using a relay. Warning Note Ensure the cables used and the switch exceed the isolation voltage of the power supply.
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ANALOG CONTROL External control of Shutdown Background Connection The output of the power supplies can be configured to shut down via an external switch. The ability to externally shut down the power supply must first be enabled in the power on configuration settings. The voltage across pins 2 and 12 are internally pulled to +5V ±5% @ 500uA with 10kΩ pull-up resistor.
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PSW Series User Manual Note When using a switch over long distances, please use a switch relay to extend the line from the coil side of the relay. Switch Relay Line extention 2 Analog connector 12 Output If a single switch control is to be used for multiple Terminal units, please isolate each instrument. This can be achieved by using a relay. Warning 132 Ensure the cables and switch used exceed the isolation voltage of the power supply.
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ANALOG CONTROL Remote Monitoring The PSW 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 133  External monitoring of operation mode and alarm status → from page 135 External Voltage and Current Monitoring Background The MIL 26 pin connector is used to monitor the current (IMON) or voltage (VMON) output.
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PSW Series User Manual PSW VMON Connection DMM 10 V MON 0→10V 16 Analog connector Output Terminal   Pin16 → Neg (-) Pin10 → Pos (+) IMON Connection PSW DMM 11 I MON 0→10V 16 Analog connector Output Terminal   Note Pin16 → Neg (-) Pin11 → Pos (+) The output impedance of the voltage (VMON) and current (IMON) monitor pins is 1kΩ. Maximum current is 10mA.
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ANALOG CONTROL External Operation and Status Monitoring Background The MIL 26 pin connector can also be used 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 Com (Pin 17) is a photo coupler emitter output, whilst pins 18~22 are photo coupler collector outputs. A maximum of 30V and 8mA can be applied to each pin.
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PSW Series User Manual Timing diagrams Below are 4 example timing diagrams covering a number fo scenarios. Note that pins 18~22 are all active low. CV MODE: Output turned on The diagram below shows the timing diagram when the output is turned on when the PSW is set to CV mode. H CV status L H CC status L H Output status L CV MODE: Output turned off The diagram below shows the output status lines when the output is turned off in CV mode.
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ANALOG CONTROL CC MODE: Output turned on The diagram below shows the timing diagram when the output is turned on when the PSW is set to CC mode. H CV status L H CC status L H Output status L CC MODE: Output turned off The diagram below shows the output status lines when the output is turned off in CC mode.
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PSW Series User Manual COMMUNICATION 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 .................................................. 139 USB Remote Interface .......................................................................................... 139 Configure GPIB Interface .........................................................
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COMMUNICATION INTERFACE Interface Configuration USB Remote Interface USB configuration Steps PC side connector Type A, host PSW side connector Rear panel Type B, slave Speed 1.1/2.0 (full speed/high speed) USB Class CDC (communications device class) 1. Connect the USB cable to the rear panel USB B port. 2. Change the Rear panel-USB (F-22) Page 112 setting to USB-CDC (2). Configure GPIB Interface To use GPIB, the optional GPIB to USB (GUG-001) adapter must be used.
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PSW Series User Manual Type A plug From computer Type B plug for PSW series GUG-001 4. Turn the PSW on. 5. Press the Function key to enter the Page 112 Normal configuration settings.
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COMMUNICATION INTERFACE 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. The PSW series supports both DHCP connections so the instrument can be automatically connected to an existing network or alternatively, network settings can be manually configured.
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PSW Series User Manual 2. Press the Function key to enter the Page 112 Normal configuration settings. Set the following LAN settings: F-36 = 1 Enable LAN F-37 = 1 Turn DHCP to enable F-59 = 1 Turn the web server on Note It may be necessary to cycle the power or refresh the web browser to connect to a network. Sockets Server Configuration Configuration This configuration example will configure the PSW socket server.
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COMMUNICATION INTERFACE F-45 = 128 F-46 = 0 F-43 = 172 F-44 = 16 F-45 = 21 F-46 = 101 F-57 = 1 Note Subnet Mask part 3 of 4 Subnet Mask part 4 of 4 Gateway part 1 of 4 Gateway part 2 of 4 Gateway part 3 of 4 Gateway part 4 of 4 Enable Sockets The socket function is only available for firmware version V1.12 or above. See page 108 to check your firmware version number. USB Remote Control Function Check Functionality check Invoke a terminal application such as Realterm.
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PSW Series User Manual Manufacturer: GW-INSTEK Model number : PSW-XXX-X Serial number : TW123456 Firmware version : 01.00.20110101 Note For further details, please see the programming manual, available on the GW Instek web site @ www.gwinstek.com. Using Realterm to Establish a Remote Connection Background Realterm is a terminal program that can be used to communicate with a device attached to the serial port of a PC or via an emulated serial port via USB. The following instructions apply to version 2.0.
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COMMUNICATION INTERFACE Double click the Ports icon to reveal the connected serial port devices and the COM port for the each connected device. The baud rate, stop bit and parity settings can be viewed for the virtual COM port by rightclicking connected device and selecting the Properties option. 4. Start Realterm on the PC as an administrator.
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PSW Series User Manual 5. After Realterm has started, click on the Port tab. Enter the Baud, Parity, Data bits, Stop bits and Port number configuration for the connection. The Hardware Flow Control, Software Flow Control options can be left at the default settings. Press Open to connect to the PSW.
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COMMUNICATION INTERFACE 6. Click on the Send tab. In the EOL configuration, check on the +CR and +LF check boxes. Enter the query: *idn? Click on Send ASCII. 7. The terminal display will return the following: GW-INSTEK,PSW-XXX-X,TW123456,01.00.20110101 (manufacturer, model, serial number, version) 8. If Realterm fails to connect to the PSW, please check all the cables and settings and try again.
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PSW Series User Manual Web Server Remote Control Function Check Functionality check Enter the IP address of the power supply in a web browser after the instrument has been configured as a web server (page 141). http:// XXX.XXX.XXX.XXX The web browser interface appears. Note For further details, please see the programming manual, available on the GW Instek web site @ www.gwinstek.com.
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COMMUNICATION INTERFACE Functionality check 1. Start the NI Measurement and Automation Explorer (MAX) program. Using Windows, press: Start>All Programs>National Instruments>Measurement & Automation 2. From the Configuration panel access; My System>Devices and Interfaces>Network Devices 3. Click Create New... . 4. Select Visa TCP/IP Resource.
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PSW Series User Manual 5. Select Manual Entry of Raw Socket from the popup window. 6. Click Next. 5 6 7. Enter the IP address and the port number of the PSW. The port number is fixed at 2268. 8. Click the Validate button. A popup box will appear when successful. 9. Click Next.
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COMMUNICATION INTERFACE 7 8 9 10. Next configure the Alias (name) of the PSW connection. In this example the Alias is: PSW_DC1 11. Click finish. 10 11 12. The IP address of the PSW will now appear under Network Devices in the configuration panel. Select this icon now. 13. Press Open VISA Test Panel.
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PSW Series User Manual 13 12 14. Click Configuration icon. 15. In the I/O Settings tab, select the Enable Termination Character check box. Ensure Line Feed - \n is selected as the line feed character. 16. Click Apply Changes. 14 15 16 17. Click the Input/Output icon. 18. Ensure *IDN?\n is selected in the Select or Enter Command dropdown text box. 19. Click the Query button. 20. The *IDN? query should be returned to the buffer area: GW-INSTEK,PSW250-9,,01.54.
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COMMUNICATION INTERFACE 17 18 19 20 Note For further details, please see the programming manual, available on the GW Instek web site @ www.gwinstek.com.
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PSW Series User Manual MAINTENANCE The PSW power supply filters should be replaced on a periodic schedule to maintain performance and specification characteristics. Replacing the Dust Filter ......................................................................................
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MAINTENANCE Replacing the Dust Filter The dust filter should be replaced at least 2 times a year. Not replacing the filter on a regular basis will reduce performance and may cause the unit to overheat. Front panel filter 1. Turn the instrument off. (all models) 2. Pull the filter out from the bottom of the front panel. 3. Replace the filter with GW Instek part number 57RG-30B00101. Side panel filters 1. Lift the side panel up (Type II & Type and away from the III) case. 1 2.
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PSW Series User Manual FAQ • The power supply won’t let me change the mode (C.V. mode ↔ C.C. mode). • 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. The power supply won’t let me change the mode (C.V. mode ↔ C.C. mode). To set the power supply to CC or CV mode, the Function key must be held when the power is turned on to enter the Power On Configuration Mode. See page 114.
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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 GWInstek at www.gwinstek.com / marketing@goodwill.com.tw.
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PSW Series User Manual APPENDIX PSW Default Settings The following default settings are the factory configuration settings for the power supply (Function settings/Test settings). For details on how to return to the factory default settings, see page 53.
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APPENDIX Rising current slew rate F-06 Falling current slew rate F-07 Internal resistance setting Bleeder circuit control Buzzer ON/OFF control Measurement Average Setting Lock Mode USB/GPIB setting Rear Panel USB Mode GPIB address F-08 72.00A/s (PSW 30-36) 144.0A/s (PSW 30-72) 216.0A/s (PSW 30-108) 27.00A/s (PSW 80-13.5) 54.00A/s (PSW 80-27) 81.00A/s (PSW 80-40.5) 14.40A/s (PSW 160-7.2) 28.80A/s (PSW 160-14.4) 43.20A/s (PSW 160-21.6) 9.000A/s (PSW 250-4.5) 18.00A/s (PSW 250-9) 27.00A/s (PSW 250-13.
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PSW Series User Manual LAN setting LAN DHCP Sockets active Web Server active Web password active Web setting password Power On Configuration CV Control CC Control Power-ON Output Master/Slave External Out Logic Power Switch trip 160 F-36 F-37 F-57 F-59 F-60 F-61 1 = Enable 1 = Enable 1 = Enable 1 = Enable 1 = Enable 0000 F-90 F-91 F-92 F-93 F-94 F-95 0= Panel control (local) 0= Panel control (local) 0 = OFF at startup 0 = Master/Local 0= High ON 0 = Enable
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APPENDIX Error Messages & Messages The following error messages or messages may appear on the PSW screen during operation. Error Messages Err 001 Err 002 Err 003 Err 004 Description USB Mass Storage is not present No (such)file in USB mass storage Empty memory location File access error For error messages other than Err 001 to Err 004, please contact your distributor for service repair. Note Messages MSG 001 Description External control of output. Output off (F-94=0, High=on) External control of output.
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PSW Series User Manual PSW Specifications The specifications apply when the PSW is powered on for at least 30 minutes. PSW 360W PSW 30-36, PSW 80-13.5, PSW 160-7.2, PSW 250-4.5, 800-1.44 Model Rated Output Voltage Rated Output Current Rated Output Power Power Ratio Constant Voltage Mode Line Regulation (*1) Load Regulation (*2) Ripple and Noise (*3) p-p (*4) r.m.
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APPENDIX Ripple and noise r.m.s (*5) Temperature coefficient Protection Function Over voltage protection (OVP) Setting range Setting accuracy Over current protection (OCP) Setting range mA 72 27 15 10 5 ppm 200ppm/°C of rated output current, after a /ºC 30 minute warm-up. V A 3-33 8-88 16-176 20-275 20-880 ± (2% of rated output voltage) 3.61.350.720.4539.6 14.85 7.92 4.95 ± (2% of rated output current) 0.1441.584 Setting accuracy Over temperature protection (OTP) Operation Turn the output off.
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PSW Series User Manual CV/CC/ALM/PWR ON/OUT ON indicator Front Panel Display, 4 digits Voltage accuracy 0.1% + Current accuracy 0.1% + Indications Photocoupler open collector output; Maximum voltage 30V, maximum sink current 8mA.
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APPENDIX Input Characteristics Nominal input rating Input voltage range Input voltage range Maximum input current 100Vac 200Vac Inrush current Maximum input power Power factor 100Vac 200Vac Efficiency 100Vac 200Vac Hold-up time Interface Capabilities USB LAN GPIB Environmental Conditions Operating temperature Storage temperature Operating humidity Storage humidity Altitude 100Vac to 240Vac, 50Hz to 60Hz, single phase 85Vac ~ 265Vac 47Hz ~ 63Hz A A VA 5 2.5 Less than 25A. 500 0.99 0.
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PSW Series User Manual General Specifications Weight (main unit only) Dimensions (WxHxD) Cooling EMC Safety Withstand voltage Insulation resistance kg Approx. 3kg mm 71×124×350 Forced air cooling by internal fan. Complies with the European EMC directive 2004/108/EC for Class A test and measurement products. Complies with the European Low Voltage Directive 2006/95/EC and carries the CEmarking. Between input and chassis: No abnormalities at 1500 Vac for 1 minute.
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APPENDIX PSW 720W PSW 30-72, PSW 80-27, PSW 160-14.4, PSW 250-9, 800-2.88 Model Rated Output Voltage Rated Output Current Rated Output Power Power Ratio Constant Voltage Mode Line Regulation (*1) Load Regulation (*2) Ripple and Noise (*3) p-p (*4) r.m.s (*5) Temperature coefficient Remote sense compensation voltage (single wire) Rise Time (*6) Rated Load No Load Fall Time (*7) Rated Load No Load Transient response time (*8) Constant Current Mode Line regulation (*1) Load regulation (*9) Ripple and noise r.
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PSW Series User Manual Protection Function Over voltage protection (OVP) Setting range Setting accuracy Over current protection (OCP) Setting range V 3-33 8-88 16-176 20-275 20-880 ± (2% of rated output voltage) A 2.71.440.2885-79.2 29.7 15.84 0.9-9.9 3.168 ± (2% of rated output current) Setting accuracy Over temperature protection (OTP) Operation Turn the output off. Low AC input protection (AC-FAIL) Operation Turn the output off. Power limit (POWER LIMIT) Operation Over power limit.
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APPENDIX Front Panel Display, 4 digits Voltage accuracy 0.1% + Current accuracy 0.1% + Indications mV 20 20 100 200 400 mA 70 40 30 10 4 GREEN LED's: CV, CC, VSR, ISR, DLY, RMT, 20, 40, 60, 80, 100, %W, W, V, A RED LED's: ALM Buttons Function, OVP/OCP, Set, Test, Lock/Local, PWR DSPL, Output Knobs Voltage, Current USB port Type A USB connector Programming and Measurement (USB, LAN, GPIB) Output voltage programming accuracy 0.1% + mV 10 10 100 200 400 Output current programming accuracy 0.
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PSW Series User Manual Input Characteristics Nominal input rating Input voltage range Input voltage range Maximum input current 100Vac 200Vac Inrush current Maximum input power Power factor 100Vac 200Vac Efficiency 100Vac 200Vac Hold-up time Interface Capabilities USB LAN GPIB Environmental Conditions Operating temperature Storage temperature Operating humidity Storage humidity Altitude 170 100Vac to 240Vac, 50Hz to 60Hz, single phase 85Vac ~ 265Vac 47Hz ~ 63Hz A A VA 10 5 Less than 50A. 1000 0.99 0.
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APPENDIX General Specifications Weight (main unit only) Dimensions (WxHxD) Cooling EMC Safety Withstand voltage Insulation resistance kg Approx. 5.3kg mm 142×124×350 Forced air cooling by internal fan. Complies with the European EMC directive 2004/108/EC for Class A test and measurement products. Complies with the European Low Voltage Directive 2006/95/EC and carries the CEmarking. Between input and chassis: No abnormalities at 1500 Vac for 1 minute.
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PSW Series User Manual PSW 1080W PSW 30-108, PSW 80-40.5, PSW 160-21.6, PSW 250-13.5, 800-4.32 Model Rated Output Voltage Rated Output Current Rated Output Power Power Ratio Constant Voltage Mode Line Regulation (*1) Load Regulation (*2) Ripple and Noise (*3) p-p (*4) r.m.
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APPENDIX Protection Function Over voltage protection (OVP) Setting range Setting accuracy Over current protection (OCP) Setting range V A 3-33 8-88 16-176 20-275 ± (2% of rated output voltage) 20-880 54.05- 2.161.35118.8 44.55 23.76 14.85 ± (2% of rated output current) 0.4324.752 Setting accuracy Over temperature protection (OTP) Operation Turn the output off. Low AC input protection (AC-FAIL) Operation Turn the output off. Power limit (POWER LIMIT) Operation Over power limit. Value (fixed) Approx.
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PSW Series User Manual Front Panel Display, 4 digits Voltage accuracy 0.1% + Current accuracy 0.1% + Indications mV 20 100 200 400 100 50 30 20 6 GREEN LED's: CV, CC, VSR, ISR, DLY, RMT, 20, 40, 60, 80, 100, %W, W, V, A RED LED's: ALM Buttons Function, OVP/OCP, Set, Test, Lock/Local, PWR DSPL, Output Knobs Voltage, Current USB port Type A USB connector Programming and Measurement (USB, LAN, GPIB) Output voltage programming accuracy 0.1% + mV 10 10 100 200 400 Output current programming accuracy 0.
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APPENDIX Input Characteristics Nominal input rating Input voltage range Input voltage range Maximum input current 100Vac 200Vac Inrush current Maximum input power Power factor 100Vac 200Vac Efficiency 100Vac 200Vac Hold-up time Interface Capabilities USB LAN GPIB Environmental Conditions Operating temperature Storage temperature Operating humidity Storage humidity Altitude 100Vac to 240Vac, 50Hz to 60Hz, single phase 85Vac ~ 265Vac 47Hz ~ 63Hz A A VA 15 7.5 Less than 75A. 1500 0.99 0.
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PSW Series User Manual General Specifications Weight (main unit only) Dimensions (WxHxD) Cooling EMC Safety Withstand voltage Insulation resistance kg Approx. 7.5kg mm 214×124×350 Forced air cooling by internal fan. Complies with the European EMC directive 2004/108/EC for Class A test and measurement products. Complies with the European Low Voltage Directive 2006/95/EC and carries the CEmarking. Between input and chassis: No abnormalities at 1500 Vac for 1 minute.
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APPENDIX PSW Dimensions Type I PSW 160-7.2/PSW 80-13.5/PSW 30-36 (scale: mm) 47.5 39.5 30.5 14.5 18 333.3 123.8 332.5 12.6 123.8 70.8 19.8 10.9 39.7 M4 33.8 16.3 10.9 37.8 Ø8 46 268 31 PSW 250-4.5/PSW 800-1.44 (scale: mm) 30.48 70.8 59.9 33.8 333.3 18 20.16 3.81 ⌀15.4 ⌀19.7 46 97.8 123.8 12.6 82.8 24 11.
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PSW Series User Manual Type II PSW 160-14.4/PSW 80-27/PSW 30-72 (scale: mm) 47.5 39.5 30.5 14.5 278 21 332.5 18 333.3 268 31 141.8 123.8 7.8 12.6 123.8 33.8 19.8 18 99.6 178 16.3 10.9 10.9 39.7 37.8 70.
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APPENDIX Type II PSW 250-9/PSW 800-2.88 (scale: mm) 141.8 130.9 70.9 278 28 82.8 24 21 ⌀15.4 99.6 ⌀19.7 33.5 30.48 333.3 3.81 18 91.16 82.4 97.8 123.8 12.6 131.
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PSW Series User Manual Type III PSW 160-21.6/PSW 80-40.5/PSW 30-108 (scale: mm) 47.5 39.5 30.5 14.5 106.4 90.8 110.7 87.3 10.9 37.8 278 10.9 21 21 18 21 332.5 18 333.3 12.6 123.8 33.8 31 273 123.8 7.8 212.8 160.
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APPENDIX Type III PSW 250-13.5/PSW 800-4.32 (scale: mm) 21 278 212.8 201.9 28 82.8 24 106.4 ⌀15.4 160.6 ⌀19.7 33.8 21 30.48 333.3 3.81 91.16 82.42 12.6 97.8 123.8 131.
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PSW Series User Manual Declaration of Conformity We GOOD WILL INSTRUMENT CO., LTD. No. 7-1, Jhongsing Rd, Tucheng Dist., New Taipei City 236, Taiwan GOOD WILL INSTRUMENT (SUZHOU) CO., LTD. No. 69 Lushan Road, Suzhou New District Jiangsu, China. declare that the below mentioned product Type of Product: Multi-Range DC Power Supply Model Number: PSW 30-36, PSW 80-13.5, PSW 160-7.2, PSW 30-72, PSW 80-27, PSW 160-14.4, PSW 30-108, PSW 80-40.5, PSW 160-21.6, PSW 250-4.5, PSW 800-1.44, PSW 250-9, PSW 800-2.
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INDEX INDEX Accessories ................................. 12 Alarm description ..................................... 29 Analog connector pin assignment ............................ 117 Analog control output control ............................. 128 overview ...................................... 116 remote monitoring ..................... 133 resistance control – current output ...................................... 126 resistance control – voltage output ......................................
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PSW Series User Manual Load connection PSW-250/800................................. 46 PSW-30/80/160 ............................ 42 Maintenance replacing the filter ...................... 155 Marketing contact .......................................... 157 Messages ................................... 161 Model differences ...................... 10 OCP level .................................... 57 Operating area description ...... 22 Operation considerations ......... 30 floating output .................