Keithley 2231A-30-3 User Manual Download

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www.keithley.com

Triple-channel DC Power Supply

Reference Manual

077-1004-0

September

2014

*P077100401*

077-1004-0

A Tektr onix Company

Model 2231A

-30-3

Summary of Contents for 2231A-30-3

Page 1: ...www keithley com Triple channel DC Power Supply Reference Manual 077 1004 01 September 2014 P077100401 077 1004 01 A Tektronix Company Model 2231A 30 3...

Page 2: ...e information herein in whole or in part without the prior written approval of Keithley Instruments is strictly prohibited All Keithley Instruments product names are trademarks or registered trademark...

Page 3: ......

Page 4: ...ions operating manual and instrument labels do not connect any instrument to mains Exercise extreme caution when a shock hazard is present Lethal voltage may be present on cable connector jacks or tes...

Page 5: ...might result in personal injury or death Always read the associated information very carefully before performing the indicated procedure The CAUTION heading in the user documentation explains hazards...

Page 6: ...he output 2 7 Voltage output check 2 7 Current output check 2 8 What to do if the power supply does not turn on 2 8 General operation 3 1 Front panel operation overview 3 1 Panel description 3 2 Indic...

Page 7: ...5 7 CALibrate VOLTage LEVel 5 7 CALibrate VOLTage DATA numeric value 5 8 CALibrate CURRent LEVel 5 8 CALibrate CURRent DATA numeric value 5 8 CALibration SAVe 5 9 CALibration INITital 5 9 CALibrate S...

Page 8: ...ERation EVENt 5 21 STATus OPERation CONDition 5 22 STATus OPERation ENABle 5 22 STATus OPERation INSTrument EVENt 5 22 STATus OPERation INSTrument ENABle 5 23 STATus OPERation INSTrument ISUMmary x EV...

Page 9: ...Table of Contents Model 2231A 30 3 Triple Channel DC Power Supply Reference Manual Maintenance A 1 Introduction A 1 Line fuse replacement A 1 Cleaning the front panel display A 2...

Page 10: ...nnector makes it easy to build PC based systems This compact power supply covers a wide range of applications without covering a lot of bench space Extended warranty Additional years of warranty cover...

Page 11: ...Overvoltage and overtemperature protection Standard accessories Accessory Part number Documentation CD 077102700 Calibration report 001165500 You will also get one of the following power cords Option...

Page 12: ...nstrument s general ratings and connections are listed in the following table When the mains power supplied to the Model 2231A 30 3 exceeds 253 V the maximum operating time at maximum output power is...

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Page 14: ...elow Descriptions of the controls on the front panel follow the figure Figure 1 Model 2231A 30 3 front panel Item Description 1 Vacuum fluorescent display VFD 2 Rotary knob 3 POWER button 4 Function b...

Page 15: ...ace connector for remote control 3 110 V 220 V AC power selection switch 4 Fuse compartment 5 AC power inlet Installing the system This section contains information on how to install your Model 2231A...

Page 16: ...401 September 2014 2 3 Figure 3 Model 2231A front and rear panel dimensions Figure 4 Model 2231A 30 3 top and side dimensions Adjust the carrying handle The handle can be adjusted to the position show...

Page 17: ...ollow the procedure below to connect the Model 2231A 30 3 to line power and turn on the instrument The Model 2231A 30 3 operates on two ranges 110 V and 230 V at a frequency of 50 Hz or 60 Hz You need...

Page 18: ...e that the front panel POWER switch is in the off position 2 Properly set the 110 V 220 V selector switch located on the rear panel 3 Connect the female end of the supplied power cord to the AC recept...

Page 19: ...PROM test fails EEPROM Test Failure If the last saved settings for the power supply are lost the vacuum fluorescent display displays the following information for 2 seconds User Data Lost During the c...

Page 20: ...ng up the default settings menu No and Yes should appear on the display 5 Push the down arrow keys to select Yes Push Enter to enable the default settings 6 Push the front panel On Off button to turn...

Page 21: ...e full rated current of the power supply 8 Push the On Off button to enable the outputs The CC indicator should be on the channel with the shorted output 9 Select a channel using one of the channel se...

Page 22: ...esent line voltage 110 VAC or 220 VAC when the power supply is shipped from the factory Change the voltage setting if it is incorrect 3 Verify the correct power line fuse is installed If the fuse is d...

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Page 24: ...supply from the front panel by pushing the output On Off button When the output is off the OFF message will appear on the display The display shows the present operating status of each channel with di...

Page 25: ...each using the menu When turning on the output the CC or CV indicator is displayed on the screen When turning off the output OFF indicator is displayed on the screen 0 to 9 Numeric buttons Return to p...

Page 26: ...o set the voltage limit You can also use the up down right and left arrow buttons Set the current output or current limit for a specific channel You may set the current limit from 0 A to the maximum c...

Page 27: ...ge that can be set This influences the voltage setting range Output Timers Set the output timers for each channel Once the timer expires the output of the specified channel is turned off Key Lock Lock...

Page 28: ...e protection settings allow you to set the max voltage the output timers and the front panel button lock for all of the channels Set the maximum voltage This control determines the maximum voltage tha...

Page 29: ...voltage A constant ratio will be maintained between the voltage settings on the two channels The ratio is determined by the voltage settings present on Channel 1 and Channel 2 when tracking is turned...

Page 30: ...tputs are wired in series Figure 9 Series setup The wiring between the supplies drives the accuracy of measurements in this mode Ensure that wire sizes are sufficient wires are short and connections a...

Page 31: ...Push Menu 3 Use the arrow keys to select Combine CH1 CH2 4 Push Enter 5 Push the down arrow key to select I1 I2 parallel 6 Push Enter The screen will return to meter mode Check that the indicator Para...

Page 32: ...s powered on To enable disable the function 1 Push Menu 2 Use the arrow keys to select User settings 3 Push Enter The screen will display Output Recall 4 Push Enter 5 Use the arrow keys to select On o...

Page 33: ...User settings 3 Push Enter The screen will display Output Recall 4 Push the down arrow keys to select Knob Lock 5 Push Enter 6 Use the arrow keys to select On or Off 7 Push Enter 8 Push Esc to exit th...

Page 34: ...ware version and auxiliary firmware version respectively 4 Push Esc to exit the menu Checking the calibrate date 1 Push Menu 2 Use the arrow keys and navigate to System Info and then push Enter 3 Use...

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Page 36: ...31A 001 USB adapter to connect DB9 interface with a PC Figure 12 Communication interface Model 2231A 001 USB Adapter Figure 13 Model 2231A 001 USB Adapter You can use 2231A 001 communication module an...

Page 37: ...Section 4 Remote communication Model 2231A Triple channel DC Power Supply Reference Manual 4 2 077100401 September 2014 Figure 13 Communication connection...

Page 38: ...6 Calibration subsystem 5 7 DISPlay subsystem 5 9 INSTrument subsystem 5 10 MEASure subsystem 5 12 OUTPut subsystem 5 14 SYSTem subsystem 5 17 STATus subsystem 5 19 SOURce subsystem 5 24 Status model...

Page 39: ...meters The command keyword is separated from the first parameter by a blank space You can group command messages when you send them to the instrument Use a semicolon to separate multiple commands as s...

Page 40: ...ent status register is reset The bit definition for the standard event status register is as the same as the standard event status enable register Item Description Group Status Syntax ESR Related Comm...

Page 41: ...er to 1 The bit definition of the status byte enable register is as the same as the status byte Item Description Group System Syntax SRE n SRE Related Commands STB STB This command is to read the data...

Page 42: ...and is to recall the setups you saved in the specified memory location Item Description Group System Syntax RCL NR1 Arguments 0 to 30 Related Commands SAV TST This command is to initialize a self test...

Page 43: ...with a single command Item Description Group Apply Syntax SOURce APPLy CH1 CH2 CH3 voltage Max Min Def Up Down current Max Min Def Up Down SOURce APPLy Arguments Arg1 CH1 CH2 CH3 Optional Arg2 voltage...

Page 44: ...ude Arguments Arg1 current setting for CH1 Optional Arg2 current setting for CH2 Optional Arg3 current setting for CH3 Unit A Returns None Examples APP CURR 1 1 0 6 CALibration subsystem The commands...

Page 45: ...calibration point Item Description Group Calibration Syntax CALibrate VOLTage DATA NRf Argument Voltage level Returns NRf Examples CAL VOLT 30 0002V CALibrate CURRent LEVel This command is to set the...

Page 46: ...d is to set the current calibration coefficient as the default value Item Description Group Calibration Syntax CALibration INITital Arguments None Returns None Examples Cal init CALibrate STRing This...

Page 47: ...creen or queries the screen display Item Description Group Display Syntax DISPlay WINDow TEXT DATA String DISPlay WINDow TEXT DATA Arguments String with Returns None Examples Disp text hello keithley...

Page 48: ...Arguments Arg 1 Arg 2 Arg 3 Returns channel 1 channel 2 and channel 3 Examples INST NSEL 3 INSTrument COMbine SERies This command is to combine the voltage reading of CH1 and CH2 when they are connec...

Page 49: ...command is to turn off series parallel tracking modes Item Description Group Channel Syntax INSTrument COMbine OFF INSTrument COMbine OFF Arguments None Returns NONE SERIES PARALLEL TRACK Examples Ins...

Page 50: ...ge with the unit V Examples MEAS VOLT MEASure SCALar CURRent DC FETCh CURRent DC This first command is to initiate and execute a new current measurement The second command is to query the current read...

Page 51: ...ll three channels Item Description Group Output Syntax OUTPut STATe bool OUTPut STATe ALL Arguments 0 1 ON OFF Returns 0 1 Examples Outp 1 CHANnel OUTPut STATe This command is to control the output st...

Page 52: ...TIMer STATe Arguments 0 1 ON OFF Returns 0 1 Examples Outp tim 1 OUTPut TIMer DELay This command is to set the delay time for the output timer function Item Description Group Output Syntax OUTPut TIMe...

Page 53: ...nected in parallel Item Description Group Output Syntax OUTPut SERies STATe Arguments OUTPut SERies STATe Arguments 0 1 ON OFF Returns 0 1 Examples Outp ser 0 Outp ser OUTPut PARallel STATe This comma...

Page 54: ...n Group System Syntax SYSTem ERRor Arguments None Returns Both the error code and the error information Examples Syst err SYSTem VERSion This command is to query the SCPI version of the instrument Ite...

Page 55: ...he front panel Item Description Group System Syntax SYSTem RWLock Arguments None Returns None Examples SYST RWL SYSTem MODUle This command is to query the module of the power supply Item Description G...

Page 56: ...nt register Range 0 to 255 Examples Stat ques STATus QUEStionable ENABle This command is to set and query the contents of the questionable event enable register The QENR is an eight bit mask register...

Page 57: ...s QUEStionable INSTrument EVENt Arguments None Returns NR1 is a decimal integer representation of the contents of the questionable event register Range 0 255 Examples Stat ques inst STATus QUEStionabl...

Page 58: ...p Status Syntax STATus QUEStionable INSTrument ISUMmary X ENABle STATus QUEStionable INSTrument ISUMmary X ENABle Arguments NR1 is a decimal integer representation of the bits of the mask register of...

Page 59: ...rguments None Returns 0 255 Examples Stat oper cond STATus OPERation ENABle This command is to set or query the contents of the operation enable register Item Description Group Status Syntax STATus OP...

Page 60: ...operation event register summary of a channel Item Description Group Status Syntax STATus OPERation INSTrument ISUMmary x EVENt Arguments None Returns 0 255 Examples Stat oper inst isum2 STATus OPERa...

Page 61: ...Description Group Source Syntax SOURce CHANnel OUTPut STATe SOURce CHANnel OUTPut STATe Arguments 0 1 ON OFF Returns 0 1 Examples Chan outp 1 Chan outp SOURce CURRent LEVel IMMediate AMPLitude This co...

Page 62: ...RRent LEVel IMMediate STEP INCRement This command is to set the current stepping Item Description Group Source Syntax SOURce CURRent LEVel IMMediate STEP INCRement SOURce CURRent LEVel IMMediate STEP...

Page 63: ...OURce VOLTage LEVel Arguments MIN TO MAX MIN MAX UP DOWN DEF Unit V mV KV Returns voltage Examples Volt 19 SOURce VOLTage LEVel UP IMMediate AMPLitude This command is to increase the voltage level by...

Page 64: ...mand is to set the level for the trigger function When you set the trigger voltage and current and send the trigger command to the instrument the voltage and current can switch to the trigger voltage...

Page 65: ...00401 September 2014 Examples Volt limit 25 SOURce VOLTage LIMit STATe This command is to enable or disable the voltage limit function Item Description Group Source Syntax SOURce VOLTage LIMit STATe b...

Page 66: ...Model 2231A Triple channel DC Power Supply Reference Manual Section 5 SCPI command reference 077100401 September 2014 5 29 Status model...

Page 67: ...ATus QUEStionable INSTrument ISUMmary1 is reported to INST1 STATus QUEStionable INSTrument ISUMmary2 is reported to INST2 STATus QUEStionable INSTrument ISUMmary3 is reported to INST3 4 13 OTP ISUM Qu...

Page 68: ...c suffices 110 No input command 114 Error Para Units 116 Error Para Type 117 Error Para Count 120 Unmatched Quote 140 Unmatched Bracket 150 Invalid Command 160 No Entry 165 Too Many Dims 170 Too Many...

Page 69: ...e 225 Out of memory 230 Data Corrupt or Stale 310 System error 350 Too many errors 400 Query error 410 Query INTERRUPTED 420 Query UNTERMINATED 430 Query DEADLOCKED 223 Front panel buffer overrun 224...

Page 70: ...ate information From the website you can access The Knowledge Center which contains the following handbooks The Low Level Measurements Handbook Precision DC Current Voltage and Resistance Measurements...

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Page 72: ...tor Line fuse replacement On the back panel you will find a small plastic cover below the power supply Make sure that the replacement fuse meets the specifications of the power supply Model 110 V 220...

Page 73: ...ould expose the operator to hazardous voltages that could result in personal injury or death Cleaning the front panel display Inspect the power supply as often as operating conditions require To clean...

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Page 75: ...property of Keithley Instruments All other trademarks and trade names are the property of their respective companies Keithley Instruments Corporate Headquarters 28775 Aurora Road Cleveland Ohio 44139...

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