GW Instek PLR Series User Manual

Programmable dc power supply

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Programmable DC Power Supply

PLR Series

USER MANUAL

ISO-9001 CERTIFIED MANUFACTURER

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Summary of Contents for GW Instek PLR Series

Page 1 Programmable DC Power Supply PLR Series USER MANUAL ISO-9001 CERTIFIED MANUFACTURER...
Page 2 This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied, reproduced or translated to another language without prior written consent of Good Will company. The information in this manual was correct at the time of printing. However, Good Will continues to improve products and reserves the rights to change specification, equipment, and maintenance procedures at any time without notice.
Page 3: Table Of Contents
Table of Contents Table of Contents SAFETY INSTRUCTIONS ..........4 PLR SERIES ..............9 About this Manual ......... 9 Outline of Product ....... 10 Features ..........10 Prior to Use ......... 14 Connect the Power Cable ..... 16 Connect to the Output Terminals ..16 PANELS .................
Page 4 PLR Series User Manual Output Off Timers ....... 68 Specifying the automatic cancellation time of the setting menu display ....72 Specifying Settings when the Power is Turned On ..........74 Clearing the Memory ......91 MASTER-SLAVE OPERATION ......... 102 Configuration of Master and Slave Units102 Parallel Master-Slave Operation ..
Page 5 Table of Contents Communication Specifications... 219 SPECIFICATIONS ............224 Individual Specifications ....224 Common Specifications of PLR Series 228 PLR Series Compatible Specifications 229 APPENDIX ..............230 Trouble Shooting ....... 230 Outside Dimensions ......234 Declaration of Conformity ....235...
Page 6: Safety Instructions
PLR Series User Manual 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.
Page 7 SAFETY INSTRUCTIONS 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 PLR. General Guideline ...
Page 8 PLR Series User Manual AC Input voltage range: 100VAC to 240VAC Power Supply  Frequency: 50 to 60Hz  WARNING To avoid electrical shock connect the protective  grounding conductor of the AC power cord to an earth ground. Disconnect the power cord before cleaning.
Page 9 SAFETY INSTRUCTIONS Location: Indoor Storage  environment Temperature: -20°C to 60°C  Relative Humidity: 20% to 85% (No dew  condensation) Do not dispose this instrument as unsorted Disposal municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased.
Page 10 PLR Series User Manual Power cord for the United Kingdom When using the power supply in the United Kingdom, make sure the power cord meets the following safety instructions. NOTE: This lead/appliance must only be wired by competent persons WARNING: THIS APPLIANCE MUST BE EARTHED...
Page 11: Plr Series
PLR SERIES LR SERIES About this Manual This manual applies to the following PLR series power supply units and optional interface units. Model name Rated Voltage Rated Current Rated Power PLR 20-18 360W PLR 36-10 360W PLR 60-6 360W PLR 20-36...
Page 12: Outline Of Product
The PLR series are small, lightweight, switching type and dropper type, regulated DC power supply units with low noise. Because the PLR series power supply units are highly reliable and have a variety of protective functions, they are ideally suited for industrial use, such as for performing reliability tests, durability tests, and age-testing electronic components.
Page 13 PLR SERIES easily change the voltage and current settings. Output off timer function  To prevent battery overcharge and similar problems, this function automatically turns the output off after a preset amount of time has passed while the output is on.
Page 14 PLR Series User Manual a maximum of 2 units (of the same model) connected in series. External analog signal operation  When setting the voltage and current by external voltage and resistance, the setting values set externally will be superimposed on the setting values set on the panel.
Page 15 PLR SERIES PLR-GU (option) PLR-GU is connected to a computer through a GP-IB or USB.  Fourteen units may be connected with a computer through GP- IB, or 32 units may be connected through USB. Units connected to the computer can be connected with 31 PLR ...
Page 16: Prior To Use
PLR Series User Manual Prior to Use Standard Accessories Item Description Power cable: 14AWG, 15A, 2M Power cable: 1 pc CD-ROM: User Manual 1 pc Rear output terminal cover See page 19 for details. 1 pc Output grounding cable See page 17 for details.
Page 17 PLR SERIES M3 Small screw washer: 1 set (For attaching the grounding cable to one of the rear output terminals.) See page 17 for details. M3 Large screw washer: 2 sets (For attaching the rear output terminal cover.) See page 19 for details.
Page 18: Connect The Power Cable
PLR Series User Manual Connect the Power Cable The power cable should be connected to an AC inlet or an input terminal block. Make sure to properly connect the power cable. Warning Failure to do so may result in electric shock or fire.
Page 19 PLR SERIES Fig. 2-2 Connecting the load cable to the rear output terminals Make sure the voltage of the unit’s output Warning terminals has sufficiently fallen before touching and operating the load or output terminals. Failure to do so may result in electric shock.
Page 20 PLR Series User Manual Connecting the voltage remote sensing cables You only need to perform this operation if you plan to use the voltage remote sensing function of the unit. Use the removed M3 screws to attach the voltage remote sensing cables to the voltage remote sensing terminals.
Page 21 PLR SERIES 3. Attach a round crimp-style terminal (inner diameter of at least 3.2mm, with the smallest possible outer diameter) to the voltage remote sensing cables. Attaching the rear output terminal cover The rear output terminal cover should always be attached even when rear output terminals of the unit are not in use.
Page 22 PLR Series User Manual Output grounding cable...
Page 23 PLR SERIES Caution on Connecting to a Capacitive Load To maintain an output voltage of approximately 0 V when the output is off, the unit is equipped with a discharge circuit for removing the electric charge from the output capacitor.
Page 24 PLR Series User Manual Connecting the protective grounding terminal on the bottom face There is a protective grounding terminal on the bottom face of this unit. To ensure the safe use of this product, follow the procedure below to connect the protective grounding terminal.
Page 25 PLR SERIES Caution on mounting the unit in a rack When mounting the unit in a rack, use one of the following attachments: Rack mount adapter GRA-427 (for JIS rack)  GRA-427 (for EIA rack)  When mounting the unit in a rack, replace the screws on the left and right sides of the unit (two on each side) with the flat countersunk head screws.
Page 26 PLR Series User Manual Connecting the Power Cable to the Primary Power Be sure to turn off the power switch before connecting the power cable to the AC outlet or distribution panel. Be sure to plug the supplied power cable into an AC outlet with earth ground.
Page 27: Panels
PANELS ANELS Front Panel Front Panel (The above figure shows the front panel of the PLR 20-18) Power switch Turns the AC power on (I) and off (O).  Do not position the power supply in such a way  as to make accessing/operating the power switch difficult.
Page 28 PLR Series User Manual Rotary encoder Changes the set voltage and current, and is  used to set functions. Grill Air intake port.  Push up the mark in the bottom center of the  grill to detach the cover when cleaning or replacing the dust filter inside.
Page 29: Operation Panel
PANELS Operation Panel Operation Panel (The above figure shows the operation panel of the PLR 20-18) Voltage indicator (red LEDs): 4-digit display, unit indication Indicates the set voltage, output voltage, output  power, and MENU items. “W” is lit in red when the indicator displays the ...
Page 30 PLR Series User Manual OUTPUT key (red/amber) Manual operation: Lit in red when the output is on.  Alternately blinks red and amber when the  output off timer is set and the output is on. Pressing this key turns the output on and off.
Page 31 PANELS 11. A key (green/amber) The current is set by operating this front panel key Pressing this key causes it to turn off or light in  green. When the key is lit in green, it is possible to  change the blinking digit of the set current in the current indicator.
Page 32 PLR Series User Manual 14. CHECK key (green) Manual operation: When this key is lit, the voltage and current  indicators display the set voltage and current. When it is not lit, the indicators display the output voltage and current.
Page 33 PANELS 16. DIGIT KEY ► Manual operation Pressing this key moves the digit cursor of the  set voltage, current, OVP, UVP, or OCP value to the right. Sequence operation Moves forward to the next step while the  sequence program is being executed. If this key is pressed when execution is ...
Page 34 PLR Series User Manual 18. PRESET 1/STOP key (green/amber) Manual operation Stores and reads out the set voltage and  current. When this key blinks green, it is on standby to  store the setting. When it is lit in green, it reads out the data stored in PRESET 1.
Page 35 PANELS 20. PRESET 3/START key (green/amber) Manual operation Stores and reads out the set voltage and  current. When the key blinks green, it is on standby to  store the setting. When it is lit in green, it reads out the data stored in PRESET 3.
Page 36: Rear Panel
Rear Panel 31 30 (bottom) Rear Panel (The above figure shows the rear panel of the PLR 20-18) 22./ 23. Output terminals Output terminals of the PLR series power  supply unit. 22: Positive output 23: Negative output Use the supplied bolt set when connecting to ...
Page 37 PANELS 24./ 25. Remote sensing terminals Remote sensing terminals of the PLR series  power supply unit. 24: Positive terminal 25: Negative terminal To use the remote sensing function, remove the  shorting bars (26 and 27). When using the remote sensing function, ...
Page 38 PLR Series User Manual 28. Output grounding terminal Used to ground the positive or negative output  terminal of the unit. Use the output ground cable to ground output terminals. This terminal is also used to fix the output ...
Page 39 PANELS Description Output current monitor output: Output current 0A → Rated current approx. 0V → Output 10V. Output voltage monitor output: Output voltage 0V → Rated voltage approx. 0V → Output 10V. Common terminal for 1 and 2. The terminal is connected to the negative output terminal.
Page 40 PLR Series User Manual 33. AC inlet AC input terminal block Use the supplied power cable. Connect the  power cable to the AC inlet. AC INLET Supplying AC power to the unit that exceeds the WARNING specified input range may result in failure, electric shock, or fire.
Page 41: General Instructions
GENERAL INSTRUCTIONS ENERAL INSTRUCTIONS Connecting loads When connecting loads to the unit, use round crimp-style  terminals, etc. to ensure loads are securely connected to the output terminals. Use cables that have sufficient current capacity for the wiring to  be connected.
Page 42 PLR Series User Manual Connect a diode that meets the following Connection conditions: It must have sufficient reverse voltage  resistance against the rated voltage of the unit. It must have sufficient forward current capacity  against the rated current of the unit.
Page 43 GENERAL INSTRUCTIONS Alarm The hardware detects abnormal states and Background displays “AC oFF” or “ALП” on the voltage and current indicators. Cause Recoverable Alarm Causes Over input voltage: Supply voltage of 270VAC or greater. Under input voltage: Supply voltage of 80VAC or less. Wrong number of power units used in parallel master- slave operation.
Page 44 PLR Series User Manual If the voltage and current indicators display “AC Unrecoverable oFF” and then “ALП”, and the power switch has alarm not been turned off, there may be a unit malfunction. Perform the following steps: 1. Turn off the power switch.
Page 45: Functions And Operation Procedures
Functions and Operation Procedures UNCTIONS AND OPERATION PROCEDURES Operation modes The unit has four basic operation modes, which are as follows: Operation Mode Description Manual mode Manual operating the unit using the panel. Sequence mode Setting changes over time according to the sequence program stored in the internal memory.
Page 46 PLR Series User Manual These characters are displayed after the power switch is turned on. The rated voltage is displayed in the upper row, and the rated current in the lower row. (The rating is displayed while the internal test is performed.)
Page 47 OUTPUT CV:G connection is being used, the word "ScAn" is CC : R V( W) A( W) displayed on the voltage indicator. The PLR series scanning status is displayed on the current DIGIT MENU PROTECT CHECK indicator. PRESET / SEQUENCE...
Page 48 PLR Series User Manual Output Off display Set value Output On setting when power is turned on Master-slave Single-unit operation CC priority output Output Off timer 0 min. Setting cancellation time 3 min. Set OVP Maximum Set UVP Minimum Set OCP...
Page 49: Basic Operation
3. Use the setting rotary encoder to set the voltage value. 4. Press the V key to exit the setting mode. OUTPUT CV:G CC:R V(W) A(W) Blinking PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP...
Page 50 PLR Series User Manual 1. Press the A key, which is then lit in green. One Operation of the current setting digits starts blinking. procedure Only the digit that is blinking can be modified. 2. Press one of the DIGIT keys ◄► to move to another digit and make it blink.
Page 51 Blinking OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP...
Page 52: Output Functions
PLR Series User Manual Output Functions 1. Press the unlit OUTPUT Operation Procedure key, which is then lit in OUTPUT CV:G CC:R red. After this key is lit, voltage is output. 2. Press the red-lit OUTPUT key. The light goes out,...
Page 53: Memory Function
Functions and Operation Procedures Memory Function Storing and recalling preset voltage/current data Storing preset data 1. Set the voltage and current values, following Operation the steps described in “Voltage setting procedure procedure” (page 47) and “Current setting procedure” (page 47). Press the ENTER/MEM key.
Page 54 PLR Series User Manual OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START STOP PAUSE START STOP PAUSE START Recalling preset data 1.
Page 55: Switching The Display In The Voltage/Current Indicator Display
PLR Series User Manual Switching the display in the Voltage/Current Indicator Display Switching between the set voltage/current display and output voltage/current display When the CHECK key is lit in green, the set Operation voltage and current are displayed. procedure When the CHECK key is unlit, the output voltage and current are displayed.
Page 56 PLR Series User Manual OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU...
Page 57 Functions and Operation Procedures OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC / KEY LOCK ENTER / MEM * LOCK / RMT STEP STOP PAUSE START OUTPUT CV:G CC:R V(W) A(W) PLR series...
Page 58 PLR Series User Manual Displaying output power in the current indicator 1. When current is displayed, press and hold the Operation A key to display the output power. procedure When the output is off, the output power is displayed as “－－－－“.
Page 59 Functions and Operation Procedures OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU...
Page 60: Protective Functions
PLR Series User Manual Protective Functions The PLR power supply unit has 3 different protective functions (OVP, UVP, and OCP). Set the value for each of the protective functions to fit the intended use of the unit. Function Description Turns the output off when the output voltage exceeds the set voltage for OVP.
Page 61 Functions and Operation Procedures OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START UVP (Undervoltage protection) OUTPUT CV:G CC:R V(W) A(W) PLR series...
Page 62 PLR Series User Manual 3. Use the rotary encoder to modify the set value. 4. After setting the protective function, press the blinking ESC/KEY LOCK key to store the set value of the protective function. OUTPUT CV:G CC:R V(W) A(W)
Page 63: Key Lock/Local Function
After deactivating the protective function, the unit can be operated while the output is off. OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 64 PLR Series User Manual Key lock and unlock procedures Key lock procedure 1. When the MENU key and the PROTECT key Operation are unlit, press and hold the ESC/KEY LOCK key, which is then lit in green. This activates the key lock. After the key lock is activated, you cannot operate the keys and the rotary encoder.
Page 65 Functions and Operation Procedures OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START ESC/ KEY LOCK * LOCK/ RMT While key lock is activated, the output can be turned off.
Page 66 PLR Series User Manual OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START ESC/ KEY LOCK * LOCK/ RMT Even if the unit is in local mode, it returns to remote mode when it is...
Page 67: Menu Key Settings
MENu key settings ENU KEY SETTINGS The following items can be set by using the MENU key: Setting item Explanation in the manual Page This function is used to automatically turn off the output after a preset amount of Setting the output off timer time has passed since the output was turned on.
Page 68 PLR Series User Manual The following items can be set when turning on the power switch while pressing and holding the MENU key: Setting item Explanation in the manual Page Recalling preset values when Recalling preset data the power is turned on...
Page 69 MENu key settings Top　Menu SYSTEM ADDRESS ADDRESS Enter key PLR MODE COMMUNICATION SPEED Automatic Sequence start Presetting at Power Display Setting at Output off CV/CC Priority Setting Output Setting at Power on Master/Slave Number of parallel Setting Slave Units Enter key Power Relay Default setting MENU　...
Page 70: Output Off Timers
PLR Series User Manual Output Off Timers This function is used to automatically turn off the output after a preset amount of time has passed since the output was turned on. Setting the output off timer 1. Turn the output off, then repeatedly press the...
Page 71 After the setting is entered, the current indicator stops blinking, remains lit for a short while, and then starts blinking again. OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 72 PLR Series User Manual 5. Press the green-blinking ESC/KEY LOCK key to exit. Normal operation of the unit is then available. OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM...
Page 73 MENu key settings OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT...
Page 74: Specifying The Automatic Cancellation Time Of The Setting Menu Display
PLR Series User Manual Specifying the automatic cancellation time of the setting menu display Specifies the amount of idle time is allowed in each setting menu (voltage, current, OVP, UVP and OCP) before the setting display is automatically cancelled. 1. Turn the output off, then repeatedly press the...
Page 75 MENu key settings OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START 3. Press the green-blinking ENTER/MEM key to enter the setting.
Page 76: Specifying Settings When The Power Is Turned On
PLR Series User Manual Specifying Settings when the Power is Turned Recalling preset values when the power is turned on The voltage and current values can be set when the power is turned The voltage and current values that can be selected are the set values from when the power was last turned off, and the data that was stored in PRESET keys 1, 2, and 3.
Page 77 The values stored in the PRESET 2 key. The values stored in the PRESET 3 key. OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP...
Page 78 PLR Series User Manual 5. Press the green-blinking ESC/KEY LOCK key to exit. The message shown in the figure below appears. Normal operation of the unit is then available. Turn the power switch off and then back on to reflect the selected PRESET values.
Page 79 The function name is displayed in the voltage indicator, and the function setting is displayed (blinking) in the current indicator. OUTPUT CV:G CC: R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER/ * LOCK/ RMT...
Page 80 PLR Series User Manual 4. Press the green-blinking ENTER/MEM key to enter the setting. After the setting is entered, the current indicator stops blinking, remains lit for a short while, and then starts blinking again. 5. Press the green-blinking ESC/KEY LOCK key to exit.
Page 81 The function name is displayed in the voltage indicator, and the function setting is displayed (blinking) in the current indicator. OUTPUT CV:G CC: R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER/ * LOCK/ RMT...
Page 82 PLR Series User Manual CC priority mode on (When the unit is operated with a load in CC mode while the output is on.) OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM...
Page 83 MENu key settings OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START If CC priority mode is off, the CV/CC LED remains unlit while the output is off.
Page 84 PLR Series User Manual Turning the output on when CC priority mode is selected The PLR power series is a switching-type DC stabilized power supply unit. A switching-type CV/CC power supply unit consists of circuit in which the power supply transitions from constant- voltage (CV) mode to constant-current (CC) mode, and vice versa.
Page 85 MENu key settings Almost no overshoot in the An overshoot may be output current. generated in the output voltage. The above voltage and current waveforms assume that the resistance is the load of this unit. If other loads are used for resistance, the voltage and current waveforms may differ from those shown above.
Page 86 PLR Series User Manual OUTPUT CV:G CC: R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER/ * LOCK/ RMT STEP STOP PAUSE START 2. Repeatedly press the MENU key until "dSPy" is displayed in the voltage indicator.
Page 87 Turn the power switch off and then back on again to display the selected values OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 88 PLR Series User Manual Default setting of power relay when the power is turned on If the remote control card (PLR-GU, PLR-RS or PLR-LU) is installed, the default status (on/off) of the main power relay can be specified when the power is turned on.
Page 89 MENu key settings OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START 4. Press the green-blinking ENTER/MEM key to enter the setting.
Page 90 PLR Series User Manual OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START Specifying the baud rate If the PLR-RS card was configured, the baud rate can be specified.
Page 91 MENu key settings OUTPUT CV:G CC: R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER/ * LOCK/ RMT STEP STOP PAUSE START 2. Repeatedly press the MENU key until "rAtE" is displayed in the voltage indicator.
Page 92 PLR Series User Manual 4. Press the green-blinking ENTER/MEM key to enter the setting. After the setting is entered, the current indicator stops blinking, remains lit for a short while, and then starts blinking again. 5. Press the green-blinking ESC/KEY LOCK key to exit.
Page 93: Clearing The Memory
The ESC/KEY LOCK key and the ENTER/MEM key then start blinking green. The type of memory to be cleared is displayed. OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 94 PLR Series User Manual 2. Press the ENTER/MEM key. Pressing the ENTER/MEM key clears the memory. Pressing the ESC/KEY LOCK key cancels the memory clear. The message shown in the figure below is displayed. The unit is then restarted automatically.
Page 95 MENu key settings OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START 2. Press the ENTER/MEM key. Pressing the ENTER/MEM key clears the memory.
Page 96 PLR Series User Manual (3) Clear the setting data of the sequence operation 1. Turn on the power switch while pressing and Operation procedure holding the PRESET 2 key. Release the PRESET 2 key when the panel is lit. The ESC/KEY LOCK key and the ENTER/MEM key then start blinking green.
Page 97 MENu key settings OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START When executed When canceled (4) PLR-LU IP address setting The configured values, such as the IP address, are saved in the PLR- LU.
Page 98 PLR Series User Manual Step 1 Operation procedure Turn on the power switch while pressing and holding the PRESET 3 key. The window shown in the figure below appears, and then a request is issued to initialize the XPort of the card. (The window in the figure below is only displayed while in LAN mode.)
Page 99 Go to Step-4. Press the PRESET 2 key to configure a fixed IP address. Go to Step-3. OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP...
Page 100 PLR Series User Manual Press the ESC key to return to the value that was saved prior to editing. Press the ENTER key to save the value and go to the next item. The IP address in the figure below is as follows: 192.168.1.101 (default value when...
Page 101 Press the ESC key to cancel initialization. The power cycling message is displayed. Press the MEMORY key to perform initialization. OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP...
Page 102 PLR Series User Manual Step 5 The initialization process consists of the following steps: (3) full initialization of Xport, (4) IP address initialization, (5) IO default settings, (6) save initialization data. The steps are displayed in order of execution in the current indicator display: "3", "4", "5", and then...
Page 103 MENu key settings If the initialization request fails, the message "Cont Err" is displayed, as shown on the left. If the attempt to perform initialization is unsuccessful, the number (No.) of the step at which initialization failed is displayed together with the word "Err".
Page 104: Master-Slave Operation
PLR Series User Manual ASTER-SLAVE OPERATION The PLR power supply unit can be used for parallel master-slave operation and serial master-slave operation. Configuration of Master and Slave Units When used for parallel master-slave operation and serial master- slave operation, the unit must be configured to operate as a stand- alone unit, serial master unit, serial slave unit, parallel master unit, or parallel slave unit.
Page 105 MASTER-SLAVE OPERATION OUTPUT CV:G CC: R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER/ * LOCK/ RMT STEP STOP PAUSE START 2. Repeatedly press the MENU key until "ПA.SL" is displayed in the voltage indicator.
Page 106 PLR Series User Manual 3. Turn the rotary encoder to change the setting displayed in the current indicator. Stand alone: Not used for serial or parallel master-slave operation. Serial master unit: The unit is used as the master unit for serial master-slave operation.
Page 107 MASTER-SLAVE OPERATION ※ 1 The number of units must be specified when configuring the unit to be the parallel master unit. Note ◆ For details about the setting procedure, see the following section “Specifying the number of units” on page 106. 4.
Page 108 PLR Series User Manual OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START When the unit is configured to be the serial or parallel slave unit, the display shown in the figure below appears.
Page 109 MASTER-SLAVE OPERATION 1. Press the ENTER/MEM key. OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START 2. Turn the rotary encoder to specify the number...
Page 110 PLR Series User Manual 4. Press the green-blinking ESC/KEY LOCK key. The message shown in the figure below appears. OUTPUT CV:G CC: R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER/ MEM * LOCK/ RMT...
Page 111 Normal operation of the unit is then available. OUTPUT CV:G CC: R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER/ MEM * LOCK/ RMT STEP...
Page 112: Parallel Master-Slave Operation
PLR Series User Manual Parallel Master-Slave Operation The parallel master slave movement is possible to three of the same models. Do not connect models with differently rated output voltages for parallel master-slave operation. Doing so may cause the unit to malfunction.
Page 113 MASTER-SLAVE OPERATION Precautions for connecting the master unit and CAUTION slave units:  DO NOT use PLR-002. This cable is used for serial master-slave operation. If the PLR-002 cable is used, the control signals from slave units will become unstable and slave units may reach maximum output.
Page 114: Serial Master-Slave Operation
PLR Series User Manual Serial Master-Slave Operation Series operation is only possible with two of the same models. Do not use models with differently rated current for serial master-slave operation. Doing so may cause the unit to malfunction. One unit should be configured as the serial master unit, and another unit as the slave unit.
Page 115 MASTER-SLAVE OPERATION J2 connector of the slave unit to the negative output terminal of the master unit. The J2 connector is located on the rear panel. 4. When applying the voltage remote sensing function, use the voltage remote sensing terminals on the master and slave units. Precautions for connecting the master unit and CAUTION slave units:...
Page 116: Sequence Operation
PLR Series User Manual EQUENCE OPERATION The PLR power supply unit itself cannot set sequence programs. Set the sequence programs in the unit via a personal computer, etc. After setting the sequence programs, the programs can be executed without using the digital PLR board.
Page 117 The function name is displayed in the voltage indicator, and the function setting is displayed (blinking) in the current indicator. OUTPUT CV:G CC: R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER/ * LOCK/ RMT...
Page 118 PLR Series User Manual 2. Repeatedly press the MENU key until "SEq" is displayed in the voltage indicator. OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 119 The message shown in the figure below appears. The display then exits setting mode and switches to sequence mode. OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 120: Sequence Programs
PLR Series User Manual Sequence Programs A sequence program consists of the settings for each step, and the step execution settings. Step No. and setting items. There are 1000 steps. The following items must be specified for each step. STEP 1...
Page 121: Confirming The Step No. And The Step Being Executed
SEQUENCE OPERATION Start step End step Set step from 1 to 1000 Set step from 1 to 1000 Number of execution cycles: 1 to 1000, or infinite The selected execution mode is repeated, with the setting items for each step being implemented. Execution: 4 modes 0: Start step End step...
Page 122 PLR Series User Manual OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START Confirming the step No. being executed during sequence program execution 1.
Page 123 SEQUENCE OPERATION OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START The figure on the left indicates that the program is in the 3rd execution cycle, from the start step to the end step, and that step 31 is being executed.
Page 124: Confirming The Setting Items For Steps
PLR Series User Manual Confirming the Setting Items for Steps You can confirm the step setting items. 1. Press the CHECK key, which is then lit in Operation green. Procedure The voltage and current indicators display the step setting items.
Page 125 SEQUENCE OPERATION Voltage Current Setting item Remarks indicator Indicator Set voltage Set current Voltage/current OUTPUT When the output HI-R Hi-r function is on, the output is set to off. Set OVP OVP value Set UVP UVP value Set OCP OCP value Execution time The execution time can be (hr, min)
Page 126: Confirming The Settings For Sequence Program Execution
PLR Series User Manual Confirming the settings for sequence program execution The setting items for sequence program execution can be confirmed while the MENU key is lit in green. 1. Press the MENU key, which is then lit in green.
Page 127 SEQUENCE OPERATION Voltage Current Setting item indicator Indicator for sequence Remarks program execution StAt STEP No. START STEP STEP No. END STEP The number of execution cycles Number of Number of that can be displayed is 1 to 1000. cycL execution execution "InF"...
Page 128: Executing Sequence Programs
PLR Series User Manual Executing Sequence Programs The START, PAUSE, STOP, and OUTPUT keys are used to execute sequence programs. Automatic execution of sequence programs A sequence program can be set to execute automatically from the first step of the program.
Page 129 SEQUENCE OPERATION OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START OUTPUT CV: G CC:R V(W) A(W) PLR series MENU PROTECT...
Page 130 PLR Series User Manual Paused and resumed sequence programs A sequence program can be paused and resumed. 1. While the START key is lit in amber (while the Operation procedure sequence program is being executed automatically), press the PAUSE key.
Page 131 SEQUENCE OPERATION OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START OUTPUT CV: G CC:R V(W) A(W) PLR series MENU PROTECT...
Page 132 PLR Series User Manual Manual execution of sequence programs The PAUSE key and DIGIT keys ◄ ► are used to manually execute sequence programs. 1. While the STOP key is lit in amber (while the Operation sequence program is stopped), press the Procedure PAUSE key or DIGIT key ►...
Page 133 SEQUENCE OPERATION OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START 3. Press the DIGIT key ► to pause the program at the next step.
Page 134 PLR Series User Manual Procedure　1 Procedure　2 Execution mode : 0 START STEP END STEP Execution mode : 1 START STEP END STEP END STEP START STEP Execution mode : 2 END STEP START STEP Execution mode : 3 END STEP...
Page 135 SEQUENCE OPERATION OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU...
Page 136: Operation By External Analog Signal
PERATION BY EXTERNAL ANALOG SIGNAL The PLR series unit can be operated by using an analog signal from an external device. Replace the interface board according to the type of operation signal used. The following PLR boards can be used with the PLR power supply unit: ・...
Page 137 OPERATION BY EXTERNAL ANALOG SIGNAL Cautions on applying PLR-ARC boards Be sure to observe the following points when using and installing a PLR-ARC board in the unit. When using an external analog signal to operate the unit, the  outer contact, voltage, and resistance applied for the operation must be float-mounted.
Page 138 PLR Series User Manual OUTPUT OUTPUT CV:G CV:G CC:R CC:R V(W) A(W) V(W) A(W) Power switch can now be PLR series PLR series turned on. MENU PROTECT CHECK DIGIT MENU PROTECT CHECK DIGIT PRESET/SEQUENCE PRESET/SEQUENCE ESC/KEY LOCK ENTER/MEM ESC/KEY LOCK ENTER/MEM...
Page 139 OPERATION BY EXTERNAL ANALOG SIGNAL Unit output Turning output ON/OFF through external contacts. Turning main relay ON/OFF through external contacts. Alarm output Connection Function Action terminal Close circuit: Main relay Open circuit: Main relay Pin No.1 Main relay Pin No.3 to 4 on/off of CN1 of SW1...
Page 140 PLR Series User Manual ＋ Set voltage modified by external voltage Set voltage modified by external resistance CV mode output Rating External voltage Rating Rating External resistance External resistance 0Ω 10kΩ 0Ω 10kΩ Action Ⅱ Action Ⅰ Internally set voltage :0V Internally set voltage :rated voltage Set voltage control via external signal (Valid when pin No.4 of SW1 is...
Page 141 OPERATION BY EXTERNAL ANALOG SIGNAL Pin No.5 Pin No.6 Connection Function Action terminal of SW1 of SW1 External voltage 0V→0V External Pin No.1 to 2 voltage Set voltage 0V→Rated of CN2 control voltage External resistance External 0Ω→10kΩ resistance Set voltage 0V→Rated control: Action I voltage...
Page 142 PLR Series User Manual Pin No.8 Pin No.9 Connection Function Action terminal of SW1 of SW1 External voltage External 0V→10V Pin No.1 to 2 voltage of CN3 Set current 0A → Rated control current External resistance 0Ω External → 10kΩ...
Page 143: Operating The Plr-Arc Board
PLR Series User Manual Operating the PLR-ARC board Setting the Voltage When using the unit with a set voltage that is specified by an external resistance or voltage (hereinafter referred to as the "externally set voltage"), the set voltage value represents the internally set voltage (set by the rotary encoder) which is superimposed by the externally set voltage.
Page 144 PLR Series User Manual 3. Press the CHECK key, which is then lit in green. The voltage indicator displays the set voltage value, which is the internally set voltage superimposed by the externally set voltage. The current indicator displays the set current.
Page 145 ◆ For details, “Wiring an analog signal to the PLR-ARC board” on page 136. OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 146 PLR Series User Manual 8. Press the green-blinking V key. The light then goes out. Input the external analog signal into the connector on the PLR-ARC board. The voltage indicator displays the set value that corresponds to the external analog signal. The display range of the set voltage is from -10% to +110% of the rated voltage.
Page 147 A digit starts blinking in the voltage indicator. The current indicator displays the value of the internally set voltage. OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 148 PLR Series User Manual OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START 5. Press the V key. The key then starts to blink green.
Page 149 OPERATION BY EXTERNAL ANALOG SIGNAL Current setting When using the unit with a set current that is specified by an external resistance or voltage (hereinafter referred to as the "externally set current"), the set current value represents the internally set current (set by the rotary encoder) which is superimposed by the externally set current.
Page 150 PLR Series User Manual 2. Turn on the power switch. 3. Press the CHECK key, which is then lit in green. The voltage indicator displays the set voltage. The current indicator displays the set current value, which is the internally set current superimposed by the externally set current.
Page 151 ◆ For details, see “Wiring an analog signal to the PLR-ARC board” on page 136. OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET /SEQUENCE ESC / KEY LOCKENTER /MEM * LOCK /RMT...
Page 152 PLR Series User Manual 8. Press the green-blinking A key. The light then goes out. Input the external analog signal to the connector on the PLR-ARC board. The current indicator displays the set value that corresponds to the external analog signal. The display range of the set current is from -10% to +110% of the rated current.
Page 153 The current indicator displays the internally set current. A digit starts blinking in the current indicator. OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC / KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 154 PLR Series User Manual 4. Turn the rotary encoder to modify the internally set current. 5. Press the A key. The key then starts to blink green. 6. Press the green-blinking A key. The light then goes out. The blinking digit in the current indicator stops blinking and then remains lit.
Page 155 OPERATION BY EXTERNAL ANALOG SIGNAL Turning the output on/off through external contacts If the PLR-ARC board is installed in the PLR power supply unit, you can turn the output on/off operation through external contacts. To turn the output of the unit on, both the OUTPUT key and external contacts must be used.
Page 156 PLR Series User Manual OUTPUT CV:G CC:R V(W) A(W) PLR series MENU PROTECT CHECK DIGIT PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP PAUSE START 2. The output setting for when the power is turned on must be set to "on"...
Page 157 OPERATION BY EXTERNAL ANALOG SIGNAL OUTPUT ON Turning the output ON/OFF through the external contacts of the PLR-ARC. OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP...
Page 158 PLR Series User Manual OUTPUT OFF Turning the output ON/OFF through the external contacts of the PLR-ARC. OUTPUT CV: G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC / KEY LOCK ENTER / MEM * LOCK/ RMT...
Page 159 Current indicator setting that uses the external contacts of the PLR-ARC board Output on Output off OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM * LOCK/ RMT STEP STOP...
Page 160 PLR Series User Manual 2. Press the green-blinking ESC/KEY LOCK key to exit. Normal operation of the unit is then available OUTPUT CV:G CC:R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER / MEM...
Page 161 OPERATION BY EXTERNAL ANALOG SIGNAL Main relay ON/OFF operation When the power of multiple PLR units is turned on at one time, a large rush of current flows into the primary side. This may generate current distortion in the AC line, affecting the devices connected to the AC line to which the PLR units are connected.
Page 162: Interface Option
PLR Series User Manual NTERFACE OPTION Accessories The supplied accessories differ according to the optional interface board (PLR Series) that is used. PLR-GU unit accessories Short pin 3 pcs Instruction Manual 1 copy PLR-LU unit accessories Short pin 3pcs Instruction Manual 1 copy...
Page 163: Remote Control
REMOTE CONTROL EMOTE CONTROL Outline The PLR series unit can be remotely controlled by a personal computer (hereinafter "PC") or sequencer via PLR-RS (standard), PLR-GU(optional) or PLR-LU(optional). Because the digital communication interface has a local bus, a single PC or sequencer can control multiple PLR series units.
Page 164 PLR Series User Manual PLR-GU GP-IB LOCAL BUS PLR-GU Connector name Function Connects to the GP-IB controller of PC. GP-IB Connects to the USB port of a PC or USB hub. Connects to the local bus. A dedicated modular LOCAL BUS cable is required to connect to the local bus.
Page 165 REMOTE CONTROL Short-circuits the frame GND and signal GND of GP-IB and USB. CN 2 is used to eliminate ground loops in noisy environments. Connects to the terminator of the local bus and the internal bus when the circuit is closed. In the local bus, a terminator is required for the power supply units at each end of the signal line or for stand alone.
Page 166 PLR Series User Manual Connector name Function Connects to a controller, such as the controller of a LAN switching hub. Connects to the USB port of a PC or USB hub. Connects to the local bus. A dedicated modular LOCAL BUS cable is required to connect to the local bus.
Page 167 REMOTE CONTROL PLR-RS PLR-RS Connector name Function Not used. PSR BUS Used together with a crossover cable to RS-232C connect to the RS-232C of a PC. LOCAL Used together with a dedicated modular cable to connect to the local bus. Connects to the power unit.
Page 168 PLR Series User Manual Connects to the terminator of the local bus and the internal bus when the circuit is closed. In the local bus, a terminator is required for the power supply units at each end of the signal line or for stand alone.
Page 169 PLR Series User Manual Cable and connector settings The circuits for all the connectors are open by default. Adjust the connector settings according to the type of control used. A commercially available GP-IB cable can be used (1) When GPIB for the GP-IB connection of PLR-GU.
Page 170 PLR Series User Manual Use commercially available crossover cables or (4) When a interlink cables for the RS-232C connection. RS-232C is used The wiring of RS-232C cable is as follows: Three lines are used: the sending, receiving, and grounding lines.
Page 171 REMOTE CONTROL Address settings If the PLR-GU, PLR-LU, or PLR-RS is mounted on the PLR power supply unit, the address setting will appear on the menu when the unit is turned on and started by pressing and holding the MENU key.
Page 172 PLR Series User Manual 1. Turn on the power switch while pressing and Operation holding the MENU key. Procedure Release the MENU key when the panel is lit. "SYAd" (system address) is then displayed in the voltage indicator. 2. Turn the rotary encoder to change the value.
Page 173 REMOTE CONTROL OUTPUT CV:G CC: R V(W) A(W) PLR series DIGIT MENU PROTECT CHECK PRESET / SEQUENCE ESC/ KEY LOCK ENTER/ MEM * LOCK/ RMT STEP STOP PAUSE START OUTPUT CV:G CC:R V( W) A(W) PLR series MENU PROTECT CHECK...
Page 174 PLR Series User Manual Checking the mode and address settings of the Interface card Check the card type of the option card mounted on the unit and the card’s settings. 1. Repeatedly press the MENU key until "IF--" is Operation displayed in the voltage indicator.
Page 175 REMOTE CONTROL Screen Display of PLR card Information PLR card type Mode Display GP-IB PLR-GU PLR-LU PLR ARC None PLR-RS None No card None...
Page 176 PLR Series User Manual The system address is the last two digits Display of the (following "SR.") displayed in the voltage system address and PC address indicator. The PC address is the last two digits (following "PA.") displayed in the current indicator.
Page 177 REMOTE CONTROL At least half of the devices to which the GP-IB is connected must  be powered on. Turn on the power of all the devices. Two addresses are required for the address setting of the PLR  power supply unit: the system address and PC address. Make sure to specify "1"...
Page 178 Install the USB in manner that minimizes the effect of noise on the communication pathway, and make sure to implement countermeasures against noise. When a PLR series unit is used with USB, two addresses are  required for the address setting: the system address and PC address.
Page 179 REMOTE CONTROL Flow control is not performed in the RS-232C communication.  If the PLR setting is specified, communication errors cannot be detected because character strings are not echoed back. The PC address is not applied when RS-232C is used to control ...
Page 180 PLR Series User Manual need to configure the PC address. For details about configuring an automatic IP address or COM  redirector, see the corresponding section in the operation manual. You can download the operation manual from our company's website.
Page 181 REMOTE CONTROL PLR-GU System address 2 to 31 PC address 0 to 31 Cannot be specified PLR card mode USB or GPIB Not used. USB or GPIB can setting be specified. PLR card terminator PLR-RS System address 2 to 31 PC address Cannot be Cannot be specified...
Page 182: Communication Control
PLR Series User Manual Communication Control Communication commands table If a digital PLR board has been installed in the PLR supply unit, the commands are as follows: Command Category Item Setting Query Page Name Output Voltage setting VOLT Available Available...
Page 183 REMOTE CONTROL Output setting when DSPY Available Available the power is turned on Switching between the set voltage & current display and the output CHECK Available Available voltage & current display Setting CC priority CCPRIO Available Available mode Setting the output off OFFTM Available Available timer...
Page 184 PLR Series User Manual Sequence Sequence operation SCLR Available System Sequence operation XSWRITE Available Sequence operation XSREAD Available Sequence operation SSADR Available Available Sequence operation SEADR Available Available Sequence operation SMODE Available Available Sequence operation SCYCLE Available Available Sequence operation...
Page 185 REMOTE CONTROL The PLR series unit is equipped with a function that outputs response messages independently of communication commands when a status change occurs. Output response messages can be selected by using the notification setting commands. As parameters, the response message contains the system address of the unit on which a status change has occurred, and the information about the status change.
Page 186 PLR Series User Manual Error ERROR System 1: Occurrence of command occurrence address error 2: Occurrence of parameter error 3: Occurrence of execution error 4: Occurrence of warning 0: CC mode  CV mode CV/CC mode SRCC System 1: CV mode  CC mode...
Page 187 REMOTE CONTROL Parameters are specified with an integer number, decimal number, and character string. Decimal places are rounded off according to the actual setting resolution. If there are several parameters, they should be marked off with a comma (,). If a parameter that should be specified with an integer number is specified with a decimal, an error occurs.
Page 188: Commands
PLR Series User Manual PREVOLT 1,5.12 Header Space Parameter Delimiter When communicating from a PC to a slave unit on the local bus, the local bus designation command (ADRS) should be used to designate a system address for the slave unit.
Page 189 REMOTE CONTROL Query AMP? Queries the output current setting. Response AMP 5.00 Indicates the set output current is example 5.00A. "x1" is a decimal or integer number. Digits less Remarks than the setting resolution are rounded off. ◆ For details about the setting range, see “SPECIFICATIONS”...
Page 190 PLR Series User Manual UVP setting (UVP) This command sets or queries the UVP (under-voltage protection) value. Setting UVP x1 Sets the UVP value. Application UVP 5.00 Sets the UVP value to 5.00V. example Query UVP? Queries the UVP value.
Page 191 REMOTE CONTROL "x1" is a decimal or integer number. Digits less Remarks than the setting resolution are rounded off. ◆ For details about the setting range, see “SPECIFICATIONS” on page 224. If the set value exceeds the range, the maximum value will be given.
Page 192 PLR Series User Manual Set voltage Set current Set OVP (over-voltage protection) value Set UVP (under-voltage protection) value Set OCP (over-current protection) value Response XSTATUS 1,0,5.15,3.10,5.15,2.10,10.2,-0.5,4.0 example Output on, CV mode, Output 5.15V/3.10A, Set values: 5.15V/2.10A,OVP:10.2V/UVP:-0.5V/OCP:4.0A Remarks...
Page 193 REMOTE CONTROL Recalling preset setting (PRESET) This command recalls preset settings and queries the preset status. Setting PRESET x1 x1: PRESET No. (1, 2, or 3) Application PRESET 1 Recalls PRESET 1. example Query PRESET? Queries the preset status. Response PRESET 0 0: Not in PRESET.
Page 194 PLR Series User Manual Application PREVOLT 1,3.15 Saves 3.15V as the set voltage value example in PRESET 1. Query PREVOLT? x1 x1: PRESET No. (1, 2, or 3) Response form PREVOLT x1,x2 x1: PRESET No. (1, 2, or 3) x2: Set voltage value Response PREVOLT 1,3.15 Indicates 3.15V is the set voltage...
Page 195 REMOTE CONTROL Power monitor display setting (MONDSP) This command changes the power monitor display. Setting MONDSP x1 x1: Monitor display setting 0: Voltage & current display 1: Voltage & power display 2: Power & current display Application MONDSP 1 Sets the voltage & power display. example Query MONDSP?
Page 196 PLR Series User Manual Response DSPY 0 0: Only set values are displayed example while the output is off. 1: Indicates the display can be switched between the set/output values while the output is off. Remarks Monitor display switching (CHECK) This command switches between the set/output values of the voltage &...
Page 197 REMOTE CONTROL Query CCPRIO? Queries the status. Response CCPRIO 0 0: CV priority mode. example 1: CC priority mode. Remarks Output off timer setting (OFFTM) This command sets the off timer and queries the off timer setting. Setting OFFTM x1/x2 Sets the off timer.
Page 198 PLR Series User Manual Response ESC 5 Indicates 5 min has been set as the example automatic cancellation time for the display. Remarks...
Page 199 REMOTE CONTROL Main relay setting (POWER) This command sets the main relay and queries the main relay status. Setting POWER x1 x1: Sets the main relay operation. 0: Turns the main relay off. 1: Turns the main relay on. Application POWER 1 Turns the main relay on.
Page 200 PLR Series User Manual Once local lock out is set, it cannot be cancelled until the power is turned off. Remarks Sequence operation setting when the power is turned on (PONSEQ) This command sets and queries the sequence operation for when the power is turned on.
Page 201 REMOTE CONTROL Setting PONPRE x1 x1: Specifies whether to perform a recall operation when the power is turned on. 0: Set values are for when the power was last turned off. 1: Recalls PRESET 1. 2: Recalls PRESET 2. 3: Recalls PRESET 3. Application Recalls PRESET 1 when the power PONPRE 1...
Page 202 PLR Series User Manual Main relay setting when the power is turned on (PONPOW) This command sets and queries the main relay setting for when the power is turned on. Setting PONPOW x1 x1: Specifies whether to turn on the main relay when the power is turned on.
Page 203 REMOTE CONTROL MASK xxxxxxx1 : Enable(1)/disable(0) hardware alarm notification. MASK xxxxxx1x : Enable(1)/disable(0) OVP occurrence notification. MASK xxxxx1xx : Enable(1)/disable(0) UVP occurrence notification. MASK xxxx1xxx : Enable(1)/disable(0) CV/CC mode change notification. MASK xxx1xxxx : Enable(1)/disable(0) command error notification. MASK xx1xxxxx : Enable(1)/disable(0) parameter error notification.
Page 204 PLR Series User Manual Hardware alarm ALARM %1,1 OVP occurrence ALARM %1,3 UVP occurrence ALARM %1,2 CV mode  CC mode SRCC %1,0 CC mode  CV mode SRCC %1,1 Command error ERROR %1,1 Parameter error ERROR %1,2 Execution error...
Page 205 REMOTE CONTROL Other alarm ALARM %1,5 OCP occurrence ALARM %1,4 Notification setting 3 (SMASK) This command sets and queries the character string issued for sequence status notification. Setting SMASK x1 x1: Uses an 8 digit combination of 0 and 1 to enable/disable sequence status notification.
Page 206 PLR Series User Manual Application EXIT_ALM Reset alarm example Remarks Alarm reset (EXIT_ALM) This command resets alarms for recoverable conditions. Setting EXIT_ALM No parameter Application EXIT_ALM Reset alarm example Resettable alarms are as follows: Remarks Front output terminal overcurrent Abnormal internal heat...
Page 207 PLR Series User Manual Writing sequence program (XSWRITE) This command specifies a sequence program. Setting XSWRITE Writes a sequence x1,x2,x3,x4,x5,x6,x7,x8,x9,x10 program. x1: STEP No. 1 - 1000 x2: Set voltage value x3: Set current value x4: Set OVP value x5: Set UVP value x6: Set OCP value x7: Output 0: Off;...
Page 208 REMOTE CONTROL Reading out a sequence program (XSREAD) This command requests a sequence program. Query Requests sequence program data. XSREAD？ Response XSREAD x1,x2,x3,x4,x5,x6,x7,x8,x9,x10 x1: STEP No. 1 - 1000 x2: Set voltage value x3: Set current value x4: Set OVP value x5: Set UVP value x6: Set OCP value x7: Output 0: Off;...
Page 209 REMOTE CONTROL Sequence start point setting (SSADR) This command specifies the starting STEP No. of the sequence. Setting SSADR x1 x1: Specifies a number from 1 to 1000 as the starting STEP No. of the sequence. Application Sets STEP 3 as the start of the SSADR 3 example sequence.
Page 210 REMOTE CONTROL Sequence execution mode setting (SMODE) This command selects the sequence execution mode. Setting SMODE x1 0: Sets increase as the sequence. 1: Sets increase & decrease as the sequence. 2: Sets decrease as the sequence. 3: Sets decrease & increase as the sequence.
Page 211 REMOTE CONTROL SCYCLE? Queries the set number of times Query the sequence cycle is repeated. Response SCYCLE 5 Indicates that 5 has been set as the example number of times the sequence cycle is repeated. If the sequence execution mode is increase & Remarks decrease, the phase from increase to decrease is considered to be one cycle.
Page 212 REMOTE CONTROL Sequence start (SSTART) This command starts the execution of the sequence. SSTART Starts the execution of the Setting sequence. Application SSTART example SSTART? Queries the execution status of the Query sequence. Response SSTART 0 Indicates the sequence is not being example executed.
Page 213 PLR Series User Manual Sequence stop (SSTOP) This command stops the sequence. Setting SSTOP Stops the sequence. Application SSTOP example SSTOP? Queries the execution status of the Query sequence. Response SSTOP 0 Indicates the sequence has not example stopped. SSTOP 1 Indicates the sequence has stopped.
Page 214 PLR Series User Manual Sequence jump (SSTEP) This command moves sequence steps forward or backward. Setting SSTEP x1 Moves sequence steps forward or backward. The setting range is from -1000 to 1000. Application SSTEP 10 The sequence jumps forward 10 example steps.
Page 215 REMOTE CONTROL SRUN 1, 3, 2 Indicates the sequence is executing, the current STEP No. is 3, and that the sequence is in its 2nd cycle. If the unit is not in sequence mode, “stopped” is Remarks issued. Reset (*RST) This command resets the PLR unit.
Page 216 PLR Series User Manual Because the RESET command also resets the Remarks communication address, communication will be discontinued. Reading out the status byte (*STB) This command queries the status byte. Query *STB? Queries the status byte. Response form *STB x1...
Page 217 Queries the device information. Response form *IDN x1,x2,0,x3 x1: Company name x2: Product name x3: “0” Fixed x4: Version No. Response *IDN GW INSTEK,PLR-Series,0,2.01 example Remarks Querying the model and specifications (MODEL) Queries the device information Query MODEL? Queries device information.
Page 218 PLR Series User Manual x1: Series No. 21: 6V series 22: 10V series 23: 20V series 24: 40V series 25: 60V series 26: 36V series x2: Maximum voltage x3: Maximum current Response MODEL Maximum voltage 10.25V, example 22,10.25,41.00 maximum current 41.00A...
Page 219 REMOTE CONTROL If the assigned system address is "0", all the Remarks devices will operate independently of the local address (broadcast operation). If a query command that requests a response is used at this time, normal operation of the bus will be impeded. Avoid using a query command in this situation.
Page 220: Cautions About Communication
PLR Series User Manual Cautions about Communication Remember to observe the following points about communication: Do not use a long cable for communication.  Keep the communication cable as far as possible from noise  sources. For continuous communication that creates a heavy burden, ...
Page 221: Communication Specifications
REMOTE CONTROL Communication Specifications PLR-RS RS-232C Specification Compatible with RS-232C Date transfer speed 1200/2400/4800/9600/1920 0[bps] Full duplex. Data: 8[bit]. Data bit Stop bit: 1[bit]. Parity: None. 10[m] Maximum code length D-sub 9 pins, male Connector type Commercially available interlink cable (9 pins, female ⇔ 9 Applicable cable pins, female) Number of...
Page 222 PLR Series User Manual PLR-GU Supports USB Revision 2.0, full speed Specification USB series B Connector type Dedicated device class. Device class Device driver for Windows is available separately. 0x098F Vender code 0x1007 Product code Self-power only Power supply Number of A maximum of 30 units via USB hub.
Page 223 REMOTE CONTROL PLR-LU Supports USB Revision 2.0, full speed Specification USB series B Connector type Dedicated device class Device class Device driver for Windows is available separately. 0x2184 Vender code 0x0050 Product code Self-power only Power supply Number of connected A maximum of 30 units via USB hub units XPort (Lantronix)
Page 224 PLR Series User Manual Output setting range Over-voltage protection Under-voltage Rated voltage [V] range [V] protection range [V] 0.00 ～ 20.50 2.0 ～ 22.0 -1.0 ～ 22.0 0.00 ～ 36.90 3.6 ～ 39.6 -1.0 ～ 39.6 0.00 ～ 41.00 4.0 ～...
Page 225 REMOTE CONTROL Current Setting Output setting range Over-current protection Rated current [A] range [A] 0.00 ～ 6.15 ～ 0.00 ～ 10.25 0.5 ～ 11.0 ～～ 0.00 12.30 0.6 13.2 ～～ 0.00 18.45 0.9 19.8 ～～ 0.00 20.50 1.0 22.0 ～...
Page 226: Specifications
SPECIFICATIONS PECIFICATIONS Individual Specifications PLR 360W Model PLR 20-18 PLR 36-10 PLR 60-6 Output Rated Power 360W Output voltage 0 V - 20 V 0 V - 36 V 0 V - 60 V Voltage setting 10 mV resolution Voltage setting ±(0.5%SET+0.5%F.S): 23°C±5°C, after 30-minute aging accuracy 0 A - 18 A...
Page 227 SPECIFICATIONS Model PLR 20-18 PLR 36-10 PLR 60-6 Constant-current Characteristics Linear Regulation 5 mA 1 mA 1 mA 5 mA Load Regulation 10 mArms 5 mArms 5 mArms Ripple CC temperature ±100ppm/°C coefficient Indicators -10%FS～+110%FS Voltage display range Voltage display ±(0.1%rdg+2digit): 23°C±5°C/after 30-minute aging accuracy 0%FS～+110%FS...
Page 228 PLR Series User Manual PLR 720W Model PLR 20-36 PLR 36-20 PLR 60-12 Output Rated Power 720W 0 V - 20 V 0 V - 36 V 0 V - 60 V Output voltage Voltage setting 10 mV resolution Voltage setting ±(0.5%SET+0.5%F.S): 23°C±5°C, after 30-minute aging...
Page 229 SPECIFICATIONS Model PLR 20-36 PLR 36-20 PLR 60-12 Indicators -10%FS～+110%FS Voltage display range Voltage display ±(0.1%rdg+2digit): 23°C±5°C/after 30-minute aging accuracy 0%FS～+110%FS Current display range Current display ±(0.5%rdg+2digit): 23°C±5°C / after 30-minute aging accuracy 0%FS～+110%FS Power display range Power display 0.1W resolution Power display ±(0.7%rdg+1.5%F.S): 23°C±5°C, after 30-minute aging...
Page 230: Common Specifications Of Plr Series
PLR Series User Manual Common Specifications of PLR Series Over-voltage Setting range: 10% to 110% FS, Setting resolution: 10 times of protection minimum display resolution. Activates when output voltage exceeds set OVP value: Hardware detection. Under-voltage Setting range: -1V to 110% FS, Setting resolution: 10 times of protection minimum display resolution.
Page 231: Plr Series Compatible Specifications
SPECIFICATIONS PLR Series Compatible Specifications Compatible EN61010-1: 2010 (Edition 3) specification Indoor use / Max. altitude 2000m / Over- voltage category II / Pollution degree 2 EMS (MIN) EN61326-1:2013 EMI (class A) EN61326-1:2013 Use the unit with the power cable wound once around the accessory core.
Page 232: Appendix
APPENDIX PPENDIX Trouble Shooting If the PLR power supply unit becomes defective, check the following items. Phenomenon Possible cause Action Power is not turned The AC cable is not Securely connect the on even when the connected securely or AC cable. POWER switch is is broken.
Page 233 APPENDIX “ScAn Err” is The wrong number of Correct the setting for displayed when the power units has been the number of power POWER switch is set. units. thrown in parallel The dedicated cable is Connect the dedicated master-slave not connected to the cable to the J1 connection.
Page 234 PLR Series User Manual The short bar to Use the short bar to connect the output connect the output terminal and the terminal and the remote sensing remote sensing terminal is terminal. disconnected. “ALП” is displayed Objects have been Maintain a distance of...
Page 235 APPENDIX Output voltage is Commercial Adjust the AC input unstable or excessive frequency noise has voltage. noise has been input. been detected due to low AC input voltage. There is a strong Take the proper magnetic or electrical countermeasures. field nearby. Move the unit away from equipment that may produce a...
Page 236: Outside Dimensions
PLR Series User Manual Outside Dimensions 200W/360W model : Outside dimensions: 124mm (H) × 140mm  (W) × 364mm (D) Weight: Approx. 5.2kg 140.8 40.6 34.5 720W model : Outside dimensions: 124mm (H) × 210 mm (W) ×  364mm (D) Weight: Approx. 7.5kg 210.8...
Page 237: Declaration Of Conformity
APPENDIX Declaration of Conformity GOOD WILL INSTRUMENT CO., LTD. No. 7-1, Jhongsing Rd., Tucheng Dist, New Taipei City 236, Taiwan GOOD WILL INSTRUMENT (SUZHOU) CO., LTD. No. 521, Zhujiang Road, Snd, Suzhou Jiangsu 215011, China. declare that the below mentioned products Model Number: PLR 20-18/ PLR 20-36/ PLR 36-10/ PLR 36-20/ PLR 60-6/ PLR 60-12 are herewith confirmed to comply with the requirements set out in the...
Page 238: Contact Information
PLR Series User Manual Contact information Global headquarters: GOODWILL INSTRUMENT CO., LTD. No. 7-1, Jhongsing Road, Tucheng District, New Taipei City 236, Taiwan Tel: +886-2-2268-0389 Fax: +886-2-2268-0639 Web: http://www.gwinstek.com Email: marketing@goodwill.com.tw Europe subsidiary: GOODWILL INSTRUMENT EURO B.V. De Run 5427A, 5504DG Veldhoven, The Netherlands...

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