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1. INFORMATION STORING AND RECALLING eieeieeeeemereeneneeveneee 15 5 5 INFORMATION EDITING AND COPYING imiiiieeeemmeeneeneneenenennenere 16 5 6 AUTO OPERATION coconcccononccnonnononnononnononcnnononnonon coo 5 7 PARALLEL OPERATION MODE 5 8 TRACKING OPERATION MODE 5 9 RS 232 INTERFACE PARAMETER SETTING 5 10 MAXIMUM OUTPUT SETTING VALUBES iiiiiemeeeeeeeeenenereeneneeeeneee 5 11 TEST LEADS iriiri nai de senses tules 5 12 REMOTE CONTROL VIA THE RS 232 INTERFACE 6 MAINTENANCE e E 6 1 FUSE REPLACEMENT iii sica 6 2 LINE VOLTAGE ADJUSTMENT es 6 3 CLEANING oo A 6 4 REPAIR AND CALIBRATION eoccoccccocononcononcononcononencononcononcncononcononcononcnconcncononnanos IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL SAFETY TERMS AND SYMBOLS These terms may appear in this manual or on the product WARNING Warning statements identify condition or practices that could result in injury or loss of life A N CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property WARNING This equipment is not for measurements performed for CAT IL III and IV Measurement category I is for measurements performed on circuits not directly connected to MAINS Measurement category II is for measurements performed on circuits directly connected to the low voltage insta2. by a suitably rated and approved HBC mains fuse refer to the rating information on the equipment and or user instructions for details As a guide cable of 0 75mn should be protected by a 3A or 5A fuse Larger conductors would normally require 13A types depending on the connection method used iii IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL Any moulded mains connector that reguires removal or replacement must be destroyed by removal of any fuse amp fuse carrier and disposed of immediately as a plug with bared wires is hazardous if a engaged in live socket Any re wiring must be carried out in accordance with the information detailed on this label and in accordance with local regulations If further information is required contact the supplier the address is given at the end of these instructions IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 1 PRODUCT INTRODUCTION 1 1 Description The IPS series programmable power supplies are controlled by a Microprocessor Unit MPU which can be connected via an in built RS 232 communication interface to a personal computer This allows remote operation for automatic testing and control as may be required by the user The voltage and current are controlled by a 12 bit D A converter with high resolution and accuracy The digital control of the system allows simple and precise entry of information together with clear and unambiguous monitoring of th
3. pressing SHIFT CH1 to enable setting of group parameters Output current setting Switch to channel 2 by pressing SHIFT CH2 to enable setting of group parameters Over voltage protection value setting Switch to channel 3 by pressing SHIFT CH3 to enable setting of group parameters Allows coarse or fine adjustment selection for the rotary control knob Press SHIFT STEP to select Recall the next set of stored information Press SHIFT STORE to store and edit information Recall the previous set of stored information Recall the highlighted stored information or set the range of information to recall automatically by pressing SHIFT RECALL Turn on off automatic operation function by setting the AUTO on or off Operate the instrument in parallel mode by pressing SHIFT PARA Return to independent mode by pressing the keys again TE ee 16 17 19 20 IA 21 22 23 24 25 26 27 IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL Delay TRACK INDEPT OCP OVP RESET SHIFT Local Contrast i W IV VA VV Output 0 9 ENTER AC power socket AC select switch Cooling fan Interface connector Set the voltage and current output delay time in automatic operation mode Operate the instrument in series mode by pressing SHIFT TRACK Return to independent mode by pressing the keys again Turn the over current protection on or off Rese
4. value and press ENTER After modification use the knob to set the cursor to Save and press ENTER to complete the setting To cancel the changes set the cursor to Exit by using the rotary knob and press ENTER to terminate the setting without storing H3 6 000 Note When the auto operation value is set to 00 the operation will continually cycle until cancelled A IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 5 7 Parallel operation mode Press SHIFT PARA to enter the parallel operation mode In this mode the output voltage and current are controlled by channel 2 The selectable range of output voltage is the same as channel 2 under normal independent operation but the settable range of output current is twice that of channel 2 under normal independent operation Example 1 Channel 1 Voltage 10V Current 1A 2 Channel 2 Voltage 20V Current 2A 3 Press SHIFT PARA to enter parallel mode 4 Output voltage 20V output current 4A 5 8 Tracking operation mode Press SHIFT TRACK to enter tracking operation mode In this mode output voltage and current are controlled by channel 2 The selectable range of output voltage is same as channel 2 under normal independent operation but the output currents can have different values Example 1 Channel 1 Voltage 10V Current 2A 2 Channel 2 Voltage 20V Current 2A 3 Press SHIFT TRACK to enter tracking mode 4 Output vo
5. 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL USER MANUAL WLP TZ k Example Recall the store address 00 to the current status of the Information copying instrument Press SHIFT STORE to enter item selection menu select copy Press SHIFT RECALL to enter the item selection and press ENTER to enter the copy setting menu Select the menu and use the knob to set the cursor to recall memory modified item enter copy address and press ENTER After Press ENTER and input 0 0 ENTER to complete the modification select Save and press ENTER to complete the recall setting setting To cancel changes set the cursor to Exit and press 5 5 Information editing and copying ENTER to terminate the setting without storing Information Editing Edit Note Do not repeat the address of source and target input The Press SHIFT STORE to enter the item selection menu and use value of the end setting must be larger than of the start the rotary knob to set the cursor to Edit Press ENTER to setting display the memory editing menu enter the address to edit using the numeric keypad and press ENTER to display the edit selection menu Use the rotary knob to set the cursor to the item to edit enter the new value or on off status by using the number keys and press ENTER to confirm the change After the modification is completed set the cursor to End using the rotary knob and press ENTER to complete the setting If requ
6. Delay time 99 59 9959 cancel the changes set the cursor to Exit by using the rotary knob Memory groups 100 100 and press ENTER to terminate the setting without storing 5 11 Test leads Test leads supplied are suitable for the currents and channels as T H2 33 004 0 000A C shown in the following table H3 GAG OI E EHR e ARTERE MODEL IPS 3201 IPS 3202 ITEM CH1 CH2 CH3 CH1 CH2 CH3 Example Set the RS 232 Baud Rate to 9600 Gy SA GA GA JA 4A 10A Press SHIFT RS 232 to enter item selection menu Use the Fee TO Test Test Test Test Lead Lead Lead Lead Lead Lead rotary knob to set the cursor to interface and press ENTER to Note When using IPS 3202 in parallel output mode use the display the interface selection menu Set the cursor to RS 232 by 4A 10A test lead using the rotary knob and press ENTER Use the knob to setthe cursor to Baud Rate and press ENTER Set the cursor to 5 12 Remote control via the RS 232 interface 9600 and press ENTER Finally set the cursor to Save and press ENTER to complete the setting and storing The IPS series programmable power supplies can be remotely controlled via the RS 232 interface Refer to the IPS series Programming Manual for details of command strings and control options available Ey kes IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 6 MAINTENANCE 6 1 WARNING Disconnect power c
7. IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL Programmable Power Supply IPS 3201 3202 User Manual RS Components Ltd This manual contains proprietary information which is protected by copyrights All rights are reserved No part of this manual may be photocopied reproduced or translated into another language without prior written consent of RS Components The information in this manual was correct at the time of printing Due to product improvements RS Components reserves the rights to change specification equipment and maintenance procedures at any time without notice E 82IP 32020MA IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL CONTENTS 3 OPERATING PRECAUTIONS csscssssssssssssssssssnsesscsssssssssenscsscssssssensenscsecsseessensesscsees 6 3 1 UNPACKING THE INSTRUMENT 000 ceseseescseeceseseacseseseesesesnessseseenanees 6 3 2 CHECKING THE SUPPLY VOLTAGE 16 3 3 OPERATING ENVIRONMENT onnies 7 4 CONTROL PANEL ssssssssssssssesssssssssssvsesnssscssssssenscsscsessusensesscsscsessssenscsecsessessssensesessees 8 5 OPERATION c sssssssssssssssssssssssvscsscsssssssessvscsnssssussssensssscsesessenscsecsessesessenscsecsessesessensesees 12 5 1 OUTPUT VOLTAGE AND CURRENT SETTING mmmiieiemeeeeeemeeeemeee 12 5 2 OVER VOLTAGE AND OVER CURRENT PROTECTION SETTING 13 5 3 VOLTAGE AND CURRENT STEP SETTING cococicconiononiniononcononiononcnnon canos 14 5 4
8. The product has been fully inspected and tested before shipment On receiving the instrument please unpack and inspect it for damage caused during transportation If any sign of damage is found notify the bearer and or the supplier immediately 3 2 Checking the supply voltage The IPS power supplies can be connected to any supply voltages shown in the table below Before connecting the power plug to an AC outlet ensure the voltage selector on the rear panel is set to the correct position corresponding to the supply voltage Refer to section 6 2 Damage may be caused to the instrument if connected to an incorrect supply voltage WARNING To avoid electrical shock the power cord protective grounding conductor must be connected to ground WARNING To avoid personal injury disconnect the power cord before removing the fuse holder When line voltages are changed replace the fuses as shown below Line Input Line Input Model Fuse Fuse Range voltage Range voltage T3A T ES ps 3201 3201 10ov 90 110v 250v 220v 198 242V E 120V 108 132V E 230V 216 253V T2 5A IES 7202 Ea 250V Note Fuse type is 5 x 20mm HBC ceramic E 6 IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 3 3 Operating environment The operating ambient temperature range of this instrument is from 0 to 40 C 32 to 104 F Do not operate the instrument outside this temperature range otherwise damage may be caused to the instrume
9. ax non condensing Installation Category II Pollution degree 2 Storage temperature 10 to 70 C 70 RH maximum Readback Voltage lt 100ppm 10mV temperature Coefficient Current lt 150ppm 10mA Drift Voltage lt 100ppm 10mV Current lt 150ppm 10mA Tracking Tracking error lt 0 1 20mV operation Series Load effect SA Program Voltage 0 05 20mV Current lt 0 1 10mA PS OVPS 0 05 20mV Parallel Voltage 3mV lt 5mV rating current gt 3 0A perati n Load effect CurrentS 6mA test points are at the output terminal and output terminal point Voltage 3mV CurrentS 6mA test points are Source effect at the output terminal and output terminal point Memory Store Recall points 0 99 Setting time 0 1sec 99min59sec max XI 00 Timer Resolution 0 1sec Function For output working loop Auto step running Interface RS232 GPIB interface option Power source 100 120 220VH0 230V 10 6 50 60Hz AC Power IPS 3201 210W consumption IPS 3202 360W Mechanical Dimensions 230 W x140 H gt 380 D mm specifications Weights 10 kg amp humidity Power cable x1 k A Instruction manual x1 Supplied accessories Programming manual x1 Test leads 0 e x3 5 E IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 3 OPERATING PRECAUTIONS 3 1 Unpacking the instrument
10. directly onto the instrument since it may leak into the cabinet and cause damage Do not use chemicals containing benzine benzene toluene xylene acetone or similar solvents Do not use abrasive cleaners on any portion of the instrument Repair and calibration Servicing and repairs should only be undertaken by competent persons using correct components equipment and procedures To maintain accuracy the instrument should be calibrated yearly Contact the supplier or RS Components for details of repairs and calibration services The address is given at the end of these instructions AA Je PACTA IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL United Kingdom RS Components UK PO Box 99 Corby Northants NN17 9RS Tel 01536 201234 Fax 01536 405678 Italy RS Components S p A Via De Vizzi 93 95 20092 Cinisello Balsamo Milano Tel 39 2 66 058 1 Fax 39 2 66 058 051 France Radiospares Composants Rur Norman King BP 453 60031 Beauvais Cedex Tel 33 344 101515 Fax 33 3 44 10 16 00 Germany RS Components GmbH Hessenring 13b 64545 Morfelden Walldrof Tel 49 6105 401 234 Fax 49 6105 401 100 Spain Amidata S A Avenida de Europa 19 28224 Pozuelo de Alarc n Madrid Tel fono 902 100 711 Fax 902 100 611 es SAR
11. e instrument parameters The over voltage protection OVP and over current protection OCP is set through software and detected by hardware to provide continuous protection for the instrument external circuits and the user IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 1 2 Features 1 Digital control and programmable interface with high resolution and precision 2 The 192X128 point LCD display can show multiple settings and measurement results simultaneously The display format may be changed to suit individual requirements 3 Intuitive interface window display allows convenient operation of the instrument 4 High stability and low drift 5 Over voltage over current and over temperature protection 6 Intelligent fan speed control 7 Warning signals via built in buzzer 8 1 2 rack width for convenient rack installation 9 Rotary knob for fine and coarse adjustment of settings 10 100 groups of memories for storing settings 11 Parallel and series operation modes 12 Programmable internal timer for output ramp up dwell amp ramp down operation IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 2 TECHNICAL SPECIFICATIONS SPECIFICATIONS IPS 3201 IPS 3202 Voltage 0 32V 0 32V X 0 6V xl Output Current 0 1A 3 0 2A X 0 5A XI OVP 0 33 V 3 0 33V X 0 7V XI lt 3mV lt 5mV rating current gt 3 0A test Voltage points are at the output terminal and output L
12. ge setting will be changed Press ENTER to terminate the OVP voltage setting Using this method the OVP setting will change immediately following the input value through the rotary knob Example Set OVP voltage at 33 00V Press OVP SET 3 3 0 O ENTER rs M IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL OVP status clear When the output voltage exceeds the set 33 00V OVP value the output will turn off The instrument will enter OVP mode and the display will show Over voltage protection Press SHIFT OVP RESET to clear the OVP state and return to normal operation Over current protection setting The OCP of each channel may be set individually by pressing OCP If OCP is on when the output current for the channel equals or exceeds the set current value the output of the instrument will turn off The instrument will enter OCP mode and the display will show Over current protection Press OCP to clear the OCP state and return to normal operation Voltage and current step setting Press SHIFT STEP to enter into the item selection menu Use the rotary knob to set the cursor to the item which is to be modified Use the keypad to enter the required value and press ENTER Store the setting by using the knob to move the cursor to SAVE then press ENTER again to complete the setting and storing To cancel the setting move the cursor to EXIT and press ENTER to terminate the setting wit
13. hout storing SN PA IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL Example Set the step voltage of Channel 1 at 1 00V and the step current at 0 10A Press SHIFT STEP select CH1 voltage and enter 1 O OJTENTER Select CHI Current and enter OJ J 1 O O ENTER Finally use the knob to move the cursor to SAVE and press ENTER to complete the setting and storing Note The setting of the step voltage and step current of CH1 CH2 CH3 can be set using the same display window 5 4 Information storing and recalling Information storing Press SHIFT STORE to enter item selection menu Use the rotary knob to set the cursor to STORE and press ENTER The memory store menu will appear Use the numeric keypad to enter the store address and press ENTER to complete the store Ima F 0 0008 A CH 33 004 MOR Example The current setting store address of the instrument is 00 Press SHIFT STORE to enter the item selection menu Use the rotary knob to set the cursor to STORE then press ENTER and input O O ENTER to complete the store Information recall Press SHIFT RECALL to enter the item selection menu Use the rotary knob to set the cursor to Recall Memory and press ENTER to display the memory recall menu Enter the recall address by using the numeric keypad and press ENTER to complete the recall 15 IPS 3201 3202 PROGRAMMABLE POWER SUPPLY IPS
14. ired continue with other setting changes by returning to the previous menu and repeating above procedures When modification is complete use the knob to set the cursor to SAVE and press ENTER to complete the edit session To cancel changes set the cursor to Exit and press ENTER to terminate the session without storing the changes 5 6 Auto operation Delay time setting Press DELAY to enter item selection menu and use the rotary knob to set cursor to the required setting item Enter the required time using the numeric keypad and press ENTER Finally use the rotary knob to set the cursor to End and press ENTER to complete the setting The delay time setting must also be stored in the specific location of the memory address according to the procedure of 5 4 Information storing Note when the store procedure is in operation all the other settings of the instrument 16 47 IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL will be also stored in the same memory address To cancel changes set the cursor to Exit by using the rotary knob and press ENTER to terminate the setting without storing Auto operation Press SHIFT RECALL to enter item selection menu use the rotary knob to set the cursor to recall range and press ENTER to display the auto operation menu Set the cursor to the item to be modified by using the rotary knob Use the numeric keypad to input the auto operation setting
15. llation Measurement category III is for measurements performed in the building installation Measurement category IV is for measurements performed at the source of the low voltage installation The following symbols may appear in this manual or on the product A BO A DANGER ATTENTION Protective Earth ground Frame or Chassis High Voltage referto Manual Conductor Terminal Terminal Terminal 2472 IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL FOR UNITED KINGDOM ONLY NOTE This lead appliance must only be wired by competent persons WARNING THIS APPLIANCE MUST BE EARTHED IMPORTANT The wires in this lead are colour coded in accordance with the following code Green Yellow Earth Blue Neutral Brown Live Phase As the colours of the wires in main leads may not correspond with the colour markings identified in your plug appliance proceed as follows The wire which is coloured Green amp Yellow must be connected to the Earth terminal marked with the letter E or by the earth symbol S or coloured Green or Green amp Yellow The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red If in doubt consult the instructions provided with the equipment or contact the supplier This cable appliance should be protected
16. ltage 40V output current 2A WARNING A voltage of more than 60V DC presents a lethal shock hazard Take extreme care when N connecting power supplies in series to achieve voltages greater than 60VDC total or 60VDC between any connection and earth ground 19 IPS 3201 3202 PROGRAMMABLE POWER SUPPLY IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL USER MANUAL 5 9 RS 232 Interface parameter setting 5 10 Maximum output setting values Press SHIFT RS 232 to enter item selection menu Use the rotary knob to set the cursor to interface and press ENTER to MODEL IPS 3201 IPS 3202 display the interface selection menu Set the cursor to the item to ITEM CH1 CH2 CH3 CH1 CH2 CH3 be modified by using the rotary knob and ENTER Set th eba us te Totaly o press T J Ser tie Output voltage 33V 33V 33v 33v 33V 7v cursor to address or Baud Rate setting as required To modify the Output current 1 1A 1 1A 1 1A 2 1A 2 1A 5 24 address use the numeric keypad to enter the address value and Over voltage 34V 34V 34V 34V 34V sv press ENTER To modify the Baud Rate first press ENTER then use the rotary knob to set the cursor to the setting value to be Step voltage 10V 10y 10V 10y JON 1y modified and press ENTER Finally set the cursor to Save by Step current 0 5A 0 5A 0 5A 1A 1A 2 5A using the rotary knob and press ENTER to complete changes To
17. nt Do not use the instrument where strong magnetic or electric fields exist as it may disturb the operation of the instrument Use the instrument in an area free from dust and direct exposure to sunlight WARNING Do not use the instrument in wet areas or where water or other liquids may fall on or enter the instrument as this may cause a shock hazard or damage the instrument in these instructions the protection afforded by the equipment WARNING If this equipment is used in a manner not specified may be impaired IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 4 CONTROL PANEL MAT GHI 33 004 0 0004 Cy Hz 1 00 0 000 CU Figure 4 1 Front Panel IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 27 D at 24 Figure 4 2 Rear Panel IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 1 Power switch 2 Display 3 Output terminal 4 Output terminal 5 GND terminal 6 Rotary encoder 7 V set CH1 8 I Set CH2 9 OVP Set CH3 10 F C STEP 11 RecallA Store 12 RecallV Recall 13 AUTO PARA INDEP Turns the AC power on to the instrument Indicates the setting of voltage and current values output voltage and current value and the instrument and output status Positive output terminal Negative output terminal Ground terminal connected to instrument chassis Variable control knob Output voltage setting Switch to channel 1 by
18. oad effect terminal point lt 3mA S 5mA rating current gt 3 0A test Current points are at the output terminal and output terminal point Voltage lt 3mV test points are at the output terminal and output terminal point Source effect gt lt 3mA test points are at the output terminal Current E and output terminal point Voltage 10mV Setting resolution Current 1mA 2mA rating current gt 3 0A OVP 10mV Voltage lt 0 05 20mV Program accuracy a 2545 C Current lt 0 1 5mA 10mA rating current gt 3 0A OVP lt 0 05 20mV i Ripples 1mVrms 3mVp p Ripple amp noise Voltage N lt 2mVrms 30mVp 20Hz 20MHz A PP Current lt 3mArms S 5mArms rating current gt 3 0A Temperature Voltage lt 100ppm 3mV coefficient c 00 3mA 0 40 C urren ppm 3m Readback Voltage 10mV resolution Current ImA 2nA rating current gt 3 0A Response time 10 90 lt 100ms Voltage up 90 10 lt 100ms 10 rating load Voltage down IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL SPECIFICATIONS IPS 3201 IPS 3202 Indoor use only Altitude up to 2000 metres Ambient temperature Operating To satisfy specifications 10 C to 35 C 50 F to 95 F environment Maximum operating range 0 C to 40 C 32 F to 104 F Relative humidity 85 RH m
19. ord before replacing fuse 6 2 Fuse replacement For continued fire protection replace the fuse only with the specified type and rating If the fuse blows the display will not light and the power supply will not operate During normal use the fuse will not fail unless a fault has developed in the instrument Replace the fuse only with one of the correct rating and type refer to 3 2 The fuse is located on the rear panel see Fig 4 2 Line voltage adjustment The primary winding of the power transformer is tapped to permit operation from 100 120 220 or 230V AC 50 60 Hz supply voltage Conversion from one line voltage to another is achieved by changing the AC voltage selectors on the rear panel The rear panel identifies the line voltage to which the unit was factory set To convert to a different line voltage proceed as follows 1 Ensure the AC power cord is unplugged 2 Use a small flat blade screwdriver to change the AC selector switches to the desired supply voltage position 3 A change in line voltage may also require a corresponding change of fuse value Fit the correct fuse rating as indicated on the rear panel 4 Connect the AC power cord turn the instrument on and check for correct operation IPS 3201 3202 PROGRAMMABLE POWER SUPPLY 6 3 6 4 USER MANUAL Cleaning To clean the power supply use a soft cloth dampened in a solution of mild detergent and water Do not spray cleaner
20. ss ENTER to terminate the voltage setting Using this method the output voltage will change immediately following the input value through the rotary knob Set voltage at 32 00V Press V SET 3 2 J OJ O ENTER Output current setting Method 1 Set output current by pressing I SET and using numeric keypad to enter the required current value and press ENTER IPS 3201 3202 PROGRAMMABLE POWER SUPPLY 5 2 USER MANUAL Method 2 Press I SET and use the rotary knob to select the required current value and the output current setting will be changed Press ENTER to terminate the current setting Using this method the output current will be changed immediately following the input value through the rotary knob Example Set current at 1 000A Press I SET 1 0 0 0 ENTER When the load current through output terminal exceeds the setting value the instrument then operates in constant current mode If the load current remains below the set value the instrument operates in constant voltage mode Over voltage and over current protection setting Press SHIFT CHx to select the required output channel The cursor is set to CHx x 1 2 or 3 Over voltage protection setting Method 1 Set OVP voltage level by pressing OVP SET and use numeric keypad to enter the required voltage value then press ENTER Method 2 Press OVP SET use the rotary knob to select the required voltage value and the OVP volta
21. t the over voltage protection mode by pressing SHIFT OVP RESET Second function selection Clear the remote control mode from RS232 and enable front panel control Press SHIFT CONTRAST to adjust the contrast of the display Press SHIFT to turn the buzzer on or off Press SHIFT W to change the character size Press SHIFT then press IA to increment one step of the output current Press SHIFT then press IV to decrement one step of output current Press SHIFT then press VA to increment one step of output voltage Press SHIFT then press VV to decrement one step of output voltage Turn on or off output by pressing the button Value input AC mains power input connector Select mains supply voltage to 100V 120V 220V or 230V 50 60Hz AC Internal cooling fan air outlet RS 232C serial communication connector interface IPS 3201 3202 PROGRAMMABLE POWER SUPPLY USER MANUAL 5 OPERATION 5 1 Output voltage and current setting Press SHIFT CHx to select the required output channel The cursor will be set to CHx x 1 2 or 3 Refer to the drawing below TI Ta EHDEP Firs Hi 33 004 0000A C H2 33 004 0000A E Output voltage setting Method 1 Method 2 Example Press V SET and use the numeric keypad to enter the voltage value then press ENTER Press V SET and use the rotary knob to select the required voltage value and the output voltage setting will be changed Pre
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