9100 Series Power Supply User Manual
Contents
1. MENU Config Config Init Return to the factory default setup value Out Recall Set the Power ON OFF state after power up On Remembers and restores the Power ON OFF state of the power supply before power was turned off Off lt Default gt Disable this function PWR ON Recall Recall operating parameters of power supply after power up On Remembers and restores the operating parameters of the power supply voltage current settings before power was turned off Off lt Default gt Disable this function Key Sound Set Keypad sound setting On lt Default gt Enable key sound Off Disable key sound Knob Lock Set Enable disable the rotary knob On Lock the rotary knob Off lt Default gt Unlock the rotary knob Remote Sense Setup voltage measurement Mode On The power supply will measure the input voltage at the remote sense connector Off lt Default gt The power supply will measure the input voltage at the front panel connector ShortCut Call Shortcut of the recall function On Enable this function Off lt Default gt Disable this function Meter Rate Set the update speed of the power supply meter High High speed Low lt Default gt Low speed Baudrate Set Baudrate 4800 lt Default gt Baudrate 9600 Baudrate 19200 Baudrate 38400 Comm Parity Configure the parity bit2. None lt Default gt Even Odd Address Set Set the communication address range from 0 to 30 Address x Port Mode Select mode of digital port Trigger lt Def gt RI DFI Note DFI is not available for models 9150 9151 9152 9153 DIGITAL T O Note Digital output not available for models 9150 9151 9152 9153 Trig Source Setting the trigger mode Immediat lt Def gt Pressing keys will generate a trigger pulse External Ext Trigger signal is applied to the digital port in the rear panel Bus Remote command trigger mode RI Mode Configure the Remote Inhibit RI mode Off lt Default gt Disable this function Latching Live DFI Source Configure the Discrete Fault Indicator DFI mode Note Not used for models 9150 9151 9152 9153 Off lt Default gt QUES Question Bit OPER Operation Bit ESB Event State Bit RQS Require Bit Key Lock Set Setting ad password Press directly to disable the key lock function Password Exit System Set Max Volt set Set the Maximum Voltage Max Step Volt Set Set the voltage step Step Exit List Set Configure list files Call ListFile Recall list operation file Recall Edit ListFile Edit list operation file Continuous Once Repeat Step Once Repeat Save Mode Set Users can allocate
3. 39 Parameter None Example LIST CURR 1 Return parameter lt NR2 gt SOURce LIST VOLTage LEVel This command sets the voltage step Command syntax SOURce LIST VOLTage LEVel lt NRf gt Parameter 0 360V Unit V mV Example LIST VOLT 1 3V Query syntax SOURce TRANsition VOLTage TLEVel Parameter None Example LIST VOLT Return parameter lt NR2 gt SOUR ce LIST WIDth This command sets the minimum step time Decimal fractions are not allowed for this command Units are in seconds or milliseconds which are set using LIST UNIT command see LIST UNIT Set units first before using this command Command syntax SOURce LIST WIDth lt NR1 gt Parameter MIN TO MAXIMINIMAX Unit S mS Example LIST WID 1 100 Query syntax SOURce LIST WIDth Parameter None Example LIST WID 1 Return parameter lt NR1 gt SOURce LIST NAME This command sets the name for the list file Make sure the file name does not exceed 8 characters Command syntax SOURce LIST NAME lt name gt Parameter lt SRD gt Example LIST NAME TEST Query syntax SOURce LIST NAME Return parameter lt SRD gt SOURce LIST AREA This command divides up the storage area for the list file in one of the 4 ways listed below 1 1 group per store area 400 steps 2 2 groups per storage area each group contains 200 steps 4 4 groups per storage area each group has 100 steps 8 8 groups of storage area each group
4. Up Down and Entry key A Upkey Y Down key Enter Press to confirm numerical entries 3 2 Front panel Operation Overview 1 The power supply at shipment is preconfigured for front panel operation At power on the power supply will automatically start up in front panel operation mode 2 When the power supply is in remote operation mode the front panel is disabled You can revert to Local mode by pressing the Local button or by sending the appropriate SCPI command Toggling between front panel and remote operation modes will not result in any change of the output parameters 3 The output of the power supply can be enabled or disabled from the front panel by pressing the key When the output is on the CV or CC annunciator will turn on 4 The VFD annunciators display the present operating status of the power supply At power up the following is displayed The top row shows the actual output voltage and output current value and the state of the power supply The second line shows the voltage value as measured by the DVM and the Set value of the Voltage The bottom right field is also used to display the Current Set Value the Menu parameters and the Ohm meter range 3 3 Setting the Voltage The Voltage can be adjusted from OV to the maximum rated voltage of each model There are 2 ways to set the constant voltage value Solution Press the A and Y keys or the knob to change the value of the least significant digit Solutio
5. two times to exit menu operation And then press Shift C List_ to set it press Shift Trigger to run the file that you called Press Shift Listo stop running Continuous mode Once the trigger signal is received the programmed list will be executed once Once finished the instrument will pause until the next trigger signal is received Trigger Trigger Step mode The power supply will advance to the next step only after it receives a trigger signal Note In this mode list step timing parameter will not be prompted for user input or it will be ignored if controlled with remote commands because the delay between steps will be dependent on trigger instead Trigger Trigger Trigger t Trigger Trigger Trigger Trigger Trigger Digital I O When the digital port of the power supply mode is in DIGITAL I O mode and the power supply is configured for remote operation you can send SCPI command DIGital INPut STATe and DIGital OUTPut STATe to read and set the state of the output and input port NOTE Digital output is not available for models 9150 9151 9152 and 9153 21 3 7 Output Operation For front panel operation press to enable disable the output If the power supply is in remote control mode you can send SCPI command OUTPut ONIOFF to change the state of output 3 8 Remote Sense and digital port functions 8 pin connector in rear
6. RCL 3 Reference command SAV Essential SCPI Commands SYSTem ERRor NEXT This command queries the error code and error information of the power supply 0 No error 1 Too many numeric siffices in Gmmand pec 10 No hput Command b pase 14 Numeric siffix is invalid alue 16 Invalid value n mmeric or channel list e g out of range 17 Invalid nunber dimensions na channel Ist 20 Parameter of type Numeric Value overflowed its storage 30 Wrong unis Dr parameter 40 Wrong type of parameter s 50 Wrong nunber of paameters 34 60 Unmatched qudation mark 6ingle double in paameters 65 Unmatched backet 70 Command keywords vere not ecognized 80 No entry in list to retrieve number list or channel list 90 Too many dimensions nentry b be eturned in paameters 101 Command Kecution eror 100 Too many eommand 110 Rxd error Parity 1 Error EEPROM 2 Config data error 33 Error Calibration data 4 Factory Data error Command syntax SYST ERR Parameter None Return parameter lt NR1 gt lt SRD gt SYSTem VERSion This command queries the software version Command syntax SYST VERS Parameter None Return parameter lt NR2 gt SYSTem ADDRess This command queries the address of the power supply Command syntax SYST ADDR Parameter None Return parameter lt NR2 gt SYSTem REMote This command puts the power supply in remote control mode Command syntax SYST REM Parameter None Que
7. address value is mandatory and corresponds to GPIB instrument address according to GPIB IEEE 488 conventions Valid values are 0 30 27 4 3 SCPI Command Overview Common IEEE488 2 Commands CLS ESE ESE ESR IDN OPC OPC PSC PSC RST SRE SRE STB TRG SAV RCL Essential SCPI Commands SYSTem ERRor NEXT VERSion ADDRess REMote LOCal RWLock STATus QUEStionable EVENt CONDition ENABle lt VALUE gt ENABle OPERation EVENt CONDition ENABle lt VALUE gt ENABle Calibration Command CALibration SECure STATe lt ONIOFF gt lt quoted code gt STATe VOLTage LEVel lt level gt DATA lt numeric value gt CURRent LEVel lt level gt 28 DATA lt numeric value gt DVM LEVel lt level gt DATA lt numeric value gt SAVe INITital Output Commands OUTPut STATe lt bool gt STATe TIMer STATe lt bool gt STATe DATA lt timer gt DATA SOURce MODE lt FIXedILISTIDRM gt MODE VOLTage LEVel lt n gt LEVel PROTection STATe lt bool gt STATe LEVel lt n gt LEVel CURRent LEVel lt n gt LEVel LIST MODE lt mode gt MODE STEP lt step gt STEP COUNt lt n gt COUNt CURRent LEVel lt n gt lt n gt LEVel lt n gt VOLTage LEVel lt n gt lt n gt LEVel lt n gt W
8. cover panel 3 Front panel Operation So far we have covered the quick start chapter which briefly introduced the front panel operation and how to check basic voltage and current functionality This chapter describes in detail how to operate the instrument manually via the front panel keys This chapter is divided into the following sections Front Panel Operation Overview Setting the Voltage Setting the Current Save Recall Operation Menu Operation On Off Operation Remote Sense and digital port functions mQ Meter Digital Voltage Meter 3 1 Front Panel Keys 4 amp Menu List Trigger Numerical keys Primary Function keys Secondary Shift Functions Numerical Keys Secondary Shift Functions Shift Functions V mQ Toggle between DVM and mQ Meter mode 0 1 W Set the range of the mQ Meter to 0 1 W 1 W Set the range of the mQ Meter to 1 W 10W Set the range of the mQ Meter to 10 W Menu Set the parameters of the power Supply List Generate programs in List Mode Trigger Generate a single trigger pulse when configured for Immediate mode Local Enable front panel operation when in remote mode 0 9 Numerical keys for direct entry of values Primary Function Keys Set the voltage value Set the current value Save the current operating data to internal memory Recall operating data from internal memory Set the output state of the power supply Use to access secondary functions
9. description 32 BK Precision manufacturer XXXX product mode XXXXXX product serial nunber VX XX software version number For example BK PRECISION 9120A 000004 V1 01 OPC When all commands sent to the instrument prior to this command have been executed OPC of the standard event status register will be set to 1 Command syntax OPC Parameter None Query syntax OPC Return parameter lt NR1 gt PSC This command controls whether or not the power supply sends when it is reset 1 ORON When power supply is reset operation event enable register query event enable register and standard event status register are all reset 0 OR OFF The data of status byte register operation event enable register quest event enable register and standard event status enable register is stored in nonvolatile register and is recalled when power supply is reset Command syntax PSC lt bool gt Parameter OILIONIOFF Query syntax PSC Return parameter OI1 Reference command ESE SRE STAT OPER ENAB STAT QUES ENAB RST This command resets the power supply to its default setting CAL SEC STAT OFF OUTP OFF CURR MAX VOLT PROT MAX VOLT MIN TRIG SOUR BUS SYST SENS OFF PORT MODE TRIG REMODE OFF DFI SOUR OFF VOLT PROT STAT OFF Command syntax RST Parameter None SRE This command can set the parameter of the status byte enable register The value of this parameter determines which bit value of the status byte register is
10. lt 0 03 3 mV of output offset Current lt 0 05 1 5 mA lt 0 05 2 5 mA ae y Bee 5 C Voltage lt 0 02 6 mV lt 0 02 2 5 mV of output offset Current lt 0 05 1 5 mA lt 0 05 2 5 mA Ripple amp Noise Voltage lt 5 mV lt 4 mV 20 Hz 20 MHz Current lt 3 mA rms lt 4 mA rms Temperature coefficient Voltage lt 0 02 6 mV lt 0 02 3 mV 0 C 40 C of output offset Current lt 0 05 1 mA lt 0 05 2 mA Readback temperature Voltage lt 0 02 6 mV lt 0 02 3 mV coefficient of output offset Current lt 0 05 1 mA lt 0 05 2 mA integren us lt 150 us for output to recover to within 75 mV following a change from 100 mA to 1 A 0 12 V range 0 02 2 mV PNM eae Nolale 0 40 V a 0 02 3 mV DVM Resolution Voltage El moe FA Accuracy 0 1 for Voltage and Current gt 10 of FS Ohm meter mO full scale Accuracy 0 3 for Voltage and Current 3 to 10 of FS Weight net 21 2 lbs 9 6 kg NA WxHxD 214 5 mm x 88 2 mm x 354 6 mm 8 45 W x 3 47 H x 13 9 D inch LVP Limit Voltage Protection NOTE current product information Models 9150 9151 9152 9153 Limits the voltage than can be set either via the front panel or remote control command Specifications and information are subject to change without notice Please visit www bkprecision com for the most Parameter 9150 9151 9152 9153 Output Ratings Voltage 0 5 2 V 0 20V 0 30V 0 60 V 0 C 40 C Curren
11. our website www bkprecision com to obtain a RMA Return the product in the original packaging with proof of purchase to the address below Clearly state on the RMA the performance problem and return any leads probes connectors and accessories that you are using with the device Non Warranty Service Please go the support and service section on our website www bkprecision com to obtain a RMA Return the product in the original packaging to the address below Clearly state on the RMA the performance problem and return any leads probes connectors and accessories that you are using with the device Customers not on an open account must include payment in the form of a money order or credit card For the most current repair charges please refer to the service and support section on our website Return all merchandise to B amp K Precision Corp with pre paid shipping The flat rate repair charge for Non Warranty Service does not include return shipping Return shipping to locations in North America is included for Warranty Service For overnight shipments and non North American shipping fees please contact B amp K Precision Corp B amp K Precision Corp 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 714 921 9095 Include with the returned instrument your complete return shipping address contact name phone number and description of problem LIMITED ONE YEAR TWO YEAR WARRANTY B amp K Precision Corp warrants to the
12. panel Models 9120A 9121A 9122A 9123A 9124 AO ONGECTOACADIOYS S S INH GND FLT GND 4 pin connector in rear panel Models 9150 9151 9152 9153 C gy a e LU TRINGND S S Remote sense pins Remote voltage sensing is used to maintain good regulation at the load and reduce the degradation of regulation that would occur due to the voltage drop in the leads between the power supply and the load By connecting the supply for remote voltage sensing voltage is sensed at the load rather than at the supply s output terminals This will allow the supply to automatically compensate for the voltage drop in the load leads and improve regulation You must set remote sense mode before you start remote test function Output pins For Models 9120A 9121A 9122A 9123A 9124 These pins are identical to the output terminals in the front For Models 9150 9151 9152 9153 These pins are the same as remote sense pins INH Inhibit Input pin This pin has multiple functions a When Port Mode in the menu is set to Trigger INH pin is configured as trigger input For models 9150 9151 9152 and 9153 TRIN pin is configured as trigger input b When Port Mode in the menu is set to RI DFT INH pin can be used to turn the power supply output on off For models 9150 9151 9152 and 9153 TRIN pin is used instead INH can be configured in 3 ways 22 LATCHING When t
13. register Quest condition register Operation event register Status byte register Error code 90999 Command syntax CLS Parameter None ESE This command sets the parameter of the standard event enable register The value determines which bit value of the standard event register is set to 1 The ESB bit in of status byte register will change to 1 to reflect the changes Command syntax ESE lt NRf gt Parameter 0 255 Reset value Consult PSC command Example ESE 128 Query syntax ESE Return parameter lt NR1 gt Reference command ESR PSC STB Bit map of standard event status enable register Bit position 7 6 5 4 3 2 1 0 Bit Name PON Not used CME EXE DDE QYE Not used OPC Bit Weight 128 32 16 8 4 PON Power on DDE Device dependent error CME Command eror QYE Query error EXE Execution eror OPC Operation omplete ESR This command queries the standard event status register After executing this command the standard event status register is reset The bit definition of the standard event status register is identical to the standard event status enable register Query syntax ESR Parameter None Return parameter lt NR1 gt Reference command CLS ESE ESE OPC IDN This command reads information about the power supply The return value contains 4 segments divided by a comma Query syntax IDN Parameter None Return parameter lt AARD gt segment
14. serial converter cable This chapter describes how to use a computer to control the output of the power supply 4 1 Serial adapter cables RS232 to TTL serial Converter cable IT E131 The DB9 interface connector on the rear panel of the power supply provides a TTL level interface Use the communication cable IT E131 to connect the DB9 interface connector of the power supply to the RS 232 interface connector of the computer IT E131 communication cable Note It is not possible to connect the DB9 TTL connector on the power supply s rear panel supply via a standard RS232 cable to a PC s RS232 port USB to TTL serial Converter cable IT E132 The DB9 interface connector on the rear panel of the power supply provides a TTL level interface Use the communication cable IT E132 to connect the DB9 interface connector of the power supply to the USB interface connector of the computer IT E132 communication cable Note Before you can use the USB communication cable you must install the USB driver which can be found on the included installation disk The driver can also be downloaded at www bkprecision com 25 GPIB to TTL adapter IT E135 Model 9123A only The DB9 interface connector on the rear panel of the power supply provides a TTL voltage level interface Use the communication adapter IT E135 to communicate via GPIB PC Power Supply a Connect this Conn
15. 1 and the byte will enable RQS of status byte register is 1 The bit definition of the status byte enable register is the same as the status byte register Command syntax SRE lt NRf gt Parameter 0 255 Reset value Consult PSC command Example SRE 128 Query syntax SRE Return parameter lt NRI gt 33 Reference Command ESE ESR PSC STB STB This command reads data from the status byte register After executing this command the status byte register is reset Query syntax STB Parameter None Return parameter lt NR1 gt Reference command CLS ESE ESR Bit map of the standard event status enable register Bit Position 7 6 5 4 3 2 1 0 Bit Name OPER RQS ESB no use QUES no use no use no use Bit Value 128 64 32 8 TRG When the power supply s trigger source is set to Bus command this command will generate a trigger signal Its function is identical to the SYSTem TRIGger command Command syntax TRG Parameter None Reference command TRIG TRIG SOUR SAV This command saves the operating parameters of the power supply to non volatile memory The parameters include constant current constant voltage maximum voltage value and step voltage values Command syntax SAV lt NRf gt Parameter 1 50 Example SAV 3 Reference command RCL RCL This command recalls the parameter saved with the SAV command Command syntax RCL lt NRf gt Parameter 1 50 Example
16. 15A 250V T1 5A 250V 9150 TIOA 250V T5A 250V 9151 TIOA 250V T5A 250V 9152 TIOA 250V T5A 250V 9153 TIOA 250V T5A 250V Replace blown fuses according to the table above 1 6 Adjusting the Carrying Handle To adjust the position grasp the handle by the sides and pull outward Then rotate the handle to the desired position Dimensions 214 5 mm W x 88 2 mm H x 354 6 mm D all units in mm For Models 9120A 9121A 9122A 9123A 9124 BESE o900 e 900 For Models 9150 9151 9152 9153 1 7 Rack Mounting the Instrument You can mount the power supply in a standard 19 inch rack cabinet using the IT E151 rack mount kit Note Remove the carrying handle and the two plastic ears before rack mounting the instrument To remove the handle grasp the handle on the side pull outwards and rotate it to a special position where the arrow on the handle and the arrow on the plastic ears are in opposite directions Now you can pull the handle outwards After removing the handle you can remove the two plastic ears with a screw driver 11 LEE 0000 o0000 a To odos 2 mount a single instrument order rack mount kit IT E151 EEN EA Woloo00oav 000 j noooooav OO OE To rack mount two instruments models 9120A 9121A 9122A 9123A 9124 only side by side order rack mount kit IT E151 In this case you don t need to use the front
17. 2 mA lt 0 05 0 5 mA O 8 lt 150 us for output to recover to within 75 mV following a P H change from 100 mA to 1 A 0 12 V range 0 02 2 mV PAAT ouy Tgr 0 40 V range 0 02 3 mV 0 12 V range 0 1 mV DVM Resolution Voltage 0 40 V range 1 mV Accuracy 0 1 for Voltage and Current gt 10 of FS Ohm meter mO full scale Accuracy 0 3 for Voltage and Current 3 to 10 of FS Weight net 19 8 lbs 9 kg 3 214 5 mm x 88 2 mm x 354 6 mm Dimensions WARR 8 45 W x 3 47 H x 13 9 D inch LVP Limit Voltage Protection Limits the voltage than can be set either via the front panel or remote control command NOTE Specifications and information are subject to change without notice Please visit www bkprecision com for the most current product information Models 9122A 9123A Parameter 9122A 9123A 46 Onpa Raa Voltage 0 60 V 0 30 V 020 4020 Current 0 25A 0 S5A LVP 0 61 V 0 31V Load Regulation Voltage lt 0 01 2 mV Yoof output offset Current lt 0 05 0 5 mA lt 0 05 1 5 mA Line Regulation Voltage lt 0 01 2 mV lt 0 01 1 mV of output offset Current lt 0 05 0 05 mA lt 0 05 0 1 mA Programming resolution valle sa AS Current 0 1 mA Readback Meter Voltage 0 5 mV 0 1 mV resolution Current 0 05 mA Front Panel setting Voltage 1 mV 0 5 mV resolution Current 0 1 mA OS o Voltage lt 0 03 6 mV
18. 4 types of memory space to save the list file 8 X 25 Steps 4 X 50 Steps 2 X 100 Steps 1 X 200 Steps Exit Out On Timer Output timer If Timer State is set to ON power supply output will turn off after the timer elapsed Timer State Setting POWER ON timer state On Enable Output Timer Output will turn off after value set in menu Timer Set counted down to zero Off lt Default gt Timer Set Setting time of POWER ON timer Timer S Exit Exit 3 6 2 Menu Function ShortCut Recall This parameter enables a Shortcut version of the Recall functionality available by pressing the Recall button see 3 5 To enable this function do the following 1 Press Shift When Config is displayed press Press A Y to scroll to ShortCut Recall then press Z 3 Press A Vto turn this feature On press to confirm 4 Press Esc twice to exit from the menu Now you can conveniently recall up to 9 settings by simply pressing one of the corresponding number keys 1 9 The setting previously stored at that location using the Save function will be retrieved and activated If the selected location is empty EEPROM ERROR will be displayed Setting the Baud Rate gt BAUDRATE This parameter configures the baud rate for serial communication Possible values are 4800 9600 19200 or 38400 When qerating the power supply in remote mode make sure that you conf
19. ANA 22 3 8 Remote Sense and digital port fUNCtiONS cononocnocnocnnononncancnncononnnonncononn nono cnncnnonn E E EIEEE ER eT 22 3 9 Digital Volt Meter DVM noc cites melo onto dani anos codo e utes ate lates n ladesanlabioncds a acia cop dolo hilos 23 3 L10 Mill ohm Meter tornar dni OLEO it iaa 24 4 Rem t e OPEL a aa AAS eral adapter Cables siioni ia ata a E E A E E suegtentcenaens datado card Mut otas anes 25 4 2 Communication between Power Supply and PC cece ceececeseeseceeceseesecseesecssecseseseeeeseeaeeeeseaeegs 26 A 3 SEPI Command OYE Wisteria dad dd dba 28 Common IEEE488 2 COMMAND S sesionar alarde aeei a dcir drid dedicada decidas 28 Essential SCPE Commands viii ns 28 Port Configuration Commands iesin iiien iae ae a aae ae aa ass 30 Tigger COMMON E 30 SCPr Condition AA RN 30 4 4 SCPL Command Descriptions tenini eE n E eto ne Sob eio texte E O E O 32 Common JEBFA88 2 Commands punine AL dida ada 32 Essential SCPI Commands dse ieena aon ee n sdkgwcssdevvesssdupuadgsdenvesazevpewdes decaer 34 Output Commands sasona ioiei E E E E E gs E E E R E E E E E anesasgneotes 37 Eist Pile COMME aE ASS 38 Interface Configuration Commands iniiai reisenin naia naea R E e A ARE aas 42 Trigger COMMANAS tri in Ros 43 Calibration COMMAND Sita IDE ON Dni AAA 44 5 Specifications ao S Specifications e pinti and n a a a E heck les Sant a a e aa aaa es a lees fabled babs veay 46 5 2 Supplemental Characteristics nsciis eni a a cis 48 1 Intr
20. H Trigger in Inhibit Input Digital Input 2 GND GND GND GND 3 FLT Not Used Fault Indicator Output Digital Output 4 GND Not Used GND GND For Models 9150 9151 9152 9153 Mode Trigger RI DIGITAL I O Pin 1 TRIN Trigger in Inhibit Input Digital Input 2 GND GND GND GND Trigger Operation The power supply supports 3 different trigger modes Immediate External and Bus Configure one of the trigger sources before performing trigger operation e Trigger Key When this function is enabled you can generate an immediate trigger pulse by pressing Shift Trigger e External trigger signal TTL When this function is enabled the power supply can be triggered with a TTL pulse applied to pin 1 of the terminal connector in the rear The TTL on pulse width should be at least 5 ms e Bus When this function is enabled you can trigger the power supply by sending a TRG or TRIgger command to the power supply Remote Inhibit RI Input Used to turn off the output of the power supply Can be used to turn off several power supplies simultaneously The RI input has 3 modes LATCHING LIVE and OFF LATCHING When the TTL signal at the RI port transitions from TTL High to Low the output of the power supply will turn off LIVE The output state of the power supply changes according to the signal level applied to the RI port If the level is TTL high the power supply output is on if the level at the RI port is TTL Low the output of the p
21. IDth lt n gt lt n gt WIDth lt n gt NAME lt string de gt NAME AREA 1121418 AREA SAVe 112131415161718 RCL 112131415161718 UNIT SECOND MSECOND Input Measure Command MEASure SCALar 29 VOLTage DC CURRent DC POWer DC DVM DC RESistance DC Port Configuration Commands SOURce SYSTem SENSe STATe lt bool gt STATe PORT FUNCtion lt TRIGgerlRIDFilDIGital gt FUNCtion RI MODE lt OFFILATChingILIVE gt MODE DFI SOURce lt OFFIQUESIOPERIESBIRQS gt SOURce DIGital OUTPut STATe lt bool gt INPut STATe SENSe RESistance RANGe LOW MIDdle HIGH gt RANGe Trigger Command TRIGger IMMediate SOURce lt source gt SCPI Condition Register You can obtain the state of the power supply and read parameters from the operation register The different states of the power supply can be read from 7 condition registers These registers are status byte register standard event register quest condition register and operation status register The status byte register stores the information of 3 other registers The following table provides the details on each register s meaning BIT Signal Meaning Operation status register 0 CAL The power supply is calculating new calibration parameter 1 WTG The power supply is waiting for a trigger signal 2 CV The power supply is in constant vo
22. Mediate Parameter None Reference order TRIG TRIG SOUR TRIGger SOURce This command sets the trigger mode of the power supply e IMMediate When this function is enabled you can generate an immediate trigger pulse by pressing plus Trigger e EXTernal trigger signal TTL When this function is enabled the power supply can be triggered with a TTL pulse applied to pin 1 of the terminal connector in the rear The TTL on pulse width should be at least 5 ms e BUS Command When this function is enabled you can trigger the power supply by sending a TRG or TRI gger command to the power supply Command syntax TRIGger SOURce lt mode gt Parameter IMMediatelEXTernallBUS RST value KEY Note on usage When using the trigger command to initiate a list commands have to be set in a particular order in order to complete the trigger Example Below shows how to initiate a list in continuous mode using trigger under bus command mode IDN PORT FUNCTION TRIGGER TRIGGER SOURCE BUS LIST MODE CONT LIST STEP ONCE LIST COUNT 2 LIST VOLT 1 2 43 LIST VOLT 2 4 LIST UNIT SECOND LIST WID 1 1 LIST WID 2 2 LIST NAME TEST LIST SAVE 1 MODE LIST TRIGGER Calibration commands CALibration SECure STATe Set protection mode enable or disable when calibrating the power supply Command syntax CALibration SECure STATe OONIOFF lt password gt Parameter OILIONIOFF 5811 Example CAL SEC 1 5811 CAL SEC OFF Query syn
23. Output Verifications sesia EEE E E E E vadviaecbd A AEN ENO 8 Voltage Q tp t Checks re e ltda liada e a decada NEE O AE EA TE Ees 8 Current Output Check iii eii a boston EREE E E E E E E E enidbeas vetted 9 1 5 If the power supply does not turn ON oo eee ccc ienaa aeri Ae a e Eoi i MaE AECE Tane baaa Sinas oaiae 9 15A F se Replacement iann is 9 1 6 Adjusting the Carrying Handle aieia piisi arnein a a eaae damn a aa a ae aaa daS 10 1 7 Rack Mounting the Msirumeni nriran e a a a i a E e nc onncanncnncannncnnes 11 3 Front panel OPEN iZ SA Front Panel A e na a e luvs ound E A a E ocd a E eiaa aeS 12 Numerical Keys Secondary Shift Functions cece eececeseeseceeceeeesecsececeeeesecseseseeeesesseeseseeseaes 13 Shift Functions oi a iie a E E aA T EE a 13 Primary Function Keys icocrioriininatircdess cito adicta des rE eA Eea Ee scactessavtgusesrdedcents Abas UNA TnT e A EEPE Ni OEI Ta 13 Up Down a d Entry keyok Ei latin tia aT aa 13 3 2 Front panel Operation OVervieW 0 cece esscssceeeeseesecsecssceseesecseceecesecsecseseaeesecsecaseaeesesseseeseaseaesseseseaee 14 3 3 setting the Voltage iii A Rs 14 3 4 Setting the Currents cots os hons in NE 14 3 5 SAVE and Recall Opera cari A Ain nas 14 3 6 Menu Opera ta A A A E 15 3 0 1 Men Descrip Ol siccse s icessessecetsvatsvessebscccesessdvesseasucetaes tevensubsucgedeascectonsuedsoeetiensonksesesaeescectecstonesiee 15 3 0 2 Menus Function irinin ee oli es anclar ae ile Ina E E 17 EIA AAA A
24. PP ie if ia J Fiw BK Model 9120A 9121A 9122A 9123A 9124 9150 9151 9152 9153 Single Output Programmable DC Power Supply USER MANUAL Safety information Please review the following safety precautions before operating our equipment General information The following safety precautions should be observed before using this product and any associated instrumentations This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury Read and follow all installation operation and maintenance information carefully before using the product Refer to this manual for complete product specifications If the product is used in a manner not specified the protection provided by the product may be impaired Before performing any maintenance disconnect the line cord and all test cables Protection from electric shock Operators of this instrument must be protected from electric shock at all times The responsible body must ensure that operators are prevented access and or insulated from every connection point In some cases connections must be exposed to potential human contact Under these circumstances personnel must be trained to protect themselves from the risk of electric shock If the circuit is capable of operating at or above 1000 volts no conductive part of the circuit may be exposed Definition of users Responsible bo
25. QUEStionable ENABle lt NRf gt Parameter 0 255 Reset value Consult PSC command Example STATus QUEStionable ENABle 128 Query syntax STATus QUEStionable ENABle Return parameter lt NR1 gt Reference command PSC STATus OPERation EVENt This command queries the parameters of the operation event register After executing this command the operation event register is reset Query syntax STATus OPERation EVENt Parameter None Return parameter lt NR1 gt Reference command STATus OPERation ENABle Bit map of standard event status enable register Bit Position 7 6 5 4 3 2 1 0 Bit Name no use no use no use RI CC CV WTG CAL Bit value 16 8 4 2 1 STATus OPERation CONDition This command queries the parameters of the operation condition When a parameter of the operation condition register changes the corresponding bit in the operation event register will be set to 1 Query syntax STATus OPERation CONDition Parameter None Return parameter lt NR1 gt STATus OPERation ENABle This command sets the parameter of the operation event enable register The parameter determines which bit value of quest event register is set to 1 Ifa OPER condition changes the OPER bit of the status byte register will be set to 1 Command syntax STATus OPERation ENABle lt NRf gt 36 Parameter 0 255 Reset value Consult PSC command Example STATus OPERation ENABle 128 Query syntax STATu
26. Software Installation disk 2 Connect the power cord and turn on the power supply When you turn on the power supply the front panel display will light up briefly while the power supply performs its power on self test All the VFD annunciators will turn on at once Check for any missing display segments Refer to section 1 5 in this chapter if the power supply does not turn on 3 Checkout Procedure At power up the instrument will automatically perform a self test routine During this time the following should be displayed System Test Please wait followed by 0 000V 0 0000A 0 000V 0 000V The first row displays the actual output voltage value and current and the state of power supply The second row displays the voltage measured by the DVM on left and the Set Value for the voltage of the power supply To obtain additional information about the instrument press and hold the SHIFT button during Power Up On the display you will see the following First row V A rating and DVM voltage range second row Firmware version and serial number Sourc XXV XA Meas XXV Ver 1 67 SN 5975002002 Press Esc to exit the display In case the self test routine is not successful you may see one of the following If the EEPROM was damaged or the latest operation data is lost the VED will display ERR EEPROM If the calibration data stored in the EEPROM is lost the VFD will display ERROR CAL If the latest operati
27. ange 0 02 2 mV Pyra Yoran 0 40 V range 0 02 3 mV 0 12 V range 0 1 mV DVM Resolution Voltage 0 40 V range 1 mV Accuracy 0 1 for Voltage and Current gt 10 of FS full Ohm meter mQ scale Accuracy 0 3 for Voltage and Current 3 to 10 of FS Weight net 63 9 Ibs 29 kg a 3 429 mm x 88 2 mm x 458 9 mm PANIES os WARD 16 88 W x 3 47 H x 18 06 D inch LVP Limit Voltage Protection Limits the voltage than can be set either via the front panel or remote control command NOTE Specifications and information are subject to change without notice Please visit www bkprecision com for the most current product information 5 2 Supplemental Characteristics State Storage Memory 50 user configurable stored states Recommended Calibration Interval 48 1 year AC Input Ratings selectable via switch on the rear panel 220 AV 10 47 63 Hz 110 AV 10 47 63 Hz Maximum output power 9120A 9121A 9124 9122A 9123A 9150 9151 9152 9153 96 W 100 W 86 W 150 W 150 W 312 W 540 W 540 W 540 W Cooling Fan cooled Operating Temperature 0 to 40 C Storage Temperature 20 to 70 C Environmental Conditions Designed for indoor use in an installation category II pollution degree 2 environments Designed to operate at maximum relative humidity of 95 and at altitudes of up to 2000 meters 49 SERVICE INFORMATION Warranty Service Please go the support and service section on
28. bration INITial Parameter None 45 5 Specifications 5 1 Specifications Models 9120A 9121A and 9124 Parameter 9120A 9121A 9124 E Voltage 0 32 V 0 20V 0 72 V a Current 0 3A 0 5A 0 12A LVP 0 33 V 0 21V 0 73 V Load Regulation Voltage lt 0 01 2 mV lt 0 01 2 mV of output offset Current lt 0 05 1 mA lt 0 05 0 3 mA Line Regulation Voltage lt 0 01 1 mV lt 0 01 1 mV of output offset Current lt 0 05 0 1 mA lt 0 05 0 05 mA Programming resolution ete aus Ay E Current 0 1 mA 0 02 mA Readback Meter Voltage 0 1 mV 0 1 mV 0 5 mV resolution Current 0 01 mA 0 05 mA 0 01 mA Front Panel setting Voltage 0 5 mV 2 mV resolution Current 0 1 mA 0 02 mA Programming accuracy Volt y s 0 12 months 25 C 5 C oltage lt 0 03 3 m lt 0 03 6 mV of output offset Current lt 0 05 2 mA lt 0 05 1 mA Readback Meter accuracy A 12months 25 C 5 C Voltage lt 0 02 3 mV lt 0 02 5 mV of output offset Current lt 0 05 2 mA lt 0 05 1 mA Ripple amp Noise Voltage lt 4 mV lt 3mV lt 5 mVpp 20 Hz 20 MHz Current lt 3mArms lt 3 mArms lt 3 mArms Temperature coefficient Voltage lt 0 02 3 mV lt 0 02 5 mV 0 C 40 C of output offset Current lt 0 05 2 mA lt 0 05 0 5 mA eee ee Voltage lt 0 02 3 mV lt 0 02 5 mV coefficient of output offset Current lt 0 05
29. dy is the individual or group responsible for the use and maintenance of equipment is operated within its specifications and operating limits and for ensuring that operators are adequately trained This product should only be used as intended Users must be trained in electrical safety procedures and proper use of the instrument Users must be protected from electric shock and contact with hazardous live circuits Service is only to be performed by qualified service personnel Safety symbols and terms Connect to safety earth ground using the wire recommended in the user manual A This symbol on an instrument indicates that the user should refer to the operating instructions located in the manual Certification We certify that this product met its published specifications at time of shipment from the factory TABLE OF CONTENTS O O D eaan e PAREN FENO EATE EEEO TEN gives decida dead uedeveaddegives ESAN e deiaa dead da 4 t E E E E o A A E A A E E E 4 2 Quick Reference eseseseseseoesesesesosesesesesesesesesosesosesesososososeseseseseseseseseseseseseseseseses D 2 1 The Front Panele nene iee ean r a ea o r EE E T TEET A T 5 2 2 The Rear Panel iii A AE E NERE 6 2 3 Preliminary Ch cko tis cities int li nt ias 7 1 Check the list of supplied Ms coi litis 7 2 Connect the power cord and turn on the power supply oooooccncccccconconannonncononaconocanonnc ano cnn cnncnnornncnncnn ns 7 3 Checkout Procedure it O A nOs 7 L A
30. ect this IT El 3 5 5 connector to side to your DB9 TTL computer s 1EEE488 Isolated Converter connector of GPIB power supply interface ES c i serial cable GPIB cable Sa 3 included not included SE S Connect external E no E C power adapter _ ne included Recommended power up sequence Connect the IT E135 adapter to your computer and to the power supply as indicated in the above figure Connect the external power adapter Both TX and RX LED should be lit provided the power supply is turned off Turn on power supply The TX and RX LEDs will turn off For maximum throughput set the baudrate to 38400 Set parity to NONE default setting Set address to the desired GPIB instrument address Note The RX LED and TX LEDs will flicker to indicate activity on the GPIB bus The RX LED indicates a write command from controller s perspective the TX LED will indicate data transmission from power supply to GPIB controller 4 2 Communication between Power Supply and PC Before putting the instrument into remote operation make sure that the baud rate parity bit and communication address settings on the power supply and computer side are identical otherwise communication will not be possible 1 Address Range is 0 to 30 Default setting is 0 Baud rate 4800 9600 19200 and 38400 are selectable default setting is 9600 3 Parity and Data bits None 8 bits default setting Even 8 bits Odd 8 bits 4 St
31. gger condition for executing the list file CONTinious List opeation is continuous node 38 STEP List eration is step mode Command syntax SOURce LIST MODE lt CRD gt Parameter CONTiniousISTEP Query syntax SOURce LIST MODE Return parameter lt CRD gt SOURce LIST STEP This command sets the operation mode of the list file ONCE List operate once REPeat Repeat list operation Command syntax SOURce LIST STEP lt SRD gt Parameter ONCEIREPeat Query syntax SOURce LIST STEP Return parameter lt CRD gt Note to usage When setting to LIST STEP REPEAT the list would run repeatedly for an indefinite amount of time Below is an example set of commands to setup a repeated list properly IDN PORT FUNCTION TRIGGER OUTPUT TIMER OFF OUPUT OFF LIST AREA 4 LIST COUNT 2 LIST UNIT SECOND TRIGGER SOURCE BUS LIST VOLTAGE 1 5 LIST VOLTAGE 2 1 LIST WIDTH 1 4 LIST WIDTH 2 2 LIST MODE CONT LIST STEP REPEAT LIST NAME MX LIST SAVE 1 MODE LIST OUTPUT ON TRIGGER SOURce LIST COUNt This command sets the number of steps for the list operation Command syntax SOURce LIST COUNt lt NRf gt Parameter 2 400 Query syntax SOURce LIST COUNt Parameter None Return parameter lt NR1 gt SOURce LIST CURRent LEVel This command sets the current step Command syntax SOURce LIST CURRent LEVel Parameter 0 30A Unit A mA Example LIST CURR 1 3A Query syntax SOURce LIST CURRent LEVel
32. has 50 steps Command syntax SOURce LIST AREA lt NR1 gt Parameter 1121418 Example LIST AREA 1 Query syntax SOURce LIST AREA Return parameter lt NR1 gt SOURce LIST SAVe This command saves the list file to a register non volatile memory The memory can be written approximately 0 1 million times Command syntx SOURce LIST SAVe lt NR1 gt Parameter 1 8 40 Example LIST SAV 1 SOURce LIST RCL This command can recall the list file saved before from the register Command syntax SOURce LIST SAV lt NR1 gt Parameter 1 8 Example LIST SAV 1 SOURce LIST UNIT This command sets the unit for the list width in either seconds SECOND or milliseconds MSECOND Command syntax SOURce LIST UNIT lt second gt Parameter SECOND or MSECOND Example LIST UNIT SECOND Measurement commands Note All measurement commands have units in Volts V Ampere A or Watts W Decimal fractions are allowed MEASure SCALar VOLTage DC This command queries the input voltage of the power supply Command syntax MEASure SCALar VOLTage DC Parameter None Return parameter lt NR2 gt Return parameter unit V Example MEAS VOLT MEASure SCALar CURRent DC This command queries the input current of the power supply Command syntax MEASure SCALar CURRent DC Parameter None Return parameter lt NR2 gt Return parameter unit A Example MEAS CURR MEASure SCALar POWer DC This command q
33. he level of INH port changes from high to low the output of power supply turns off LIVE The output state of power supply changes according to the level of the INH port If the level of INH is TTL High the output is on If the level at pin INH is TTL Low the output of the power supply is off OFF The level state of INH does not affect the output state of the power supply c When Port Mode in the menu is set to DIGITAL I O INH pin functions as a digital input pin For models 9150 9151 9152 and 9153 TRIN pin is used for digital input For digital output FLT is used Digital output is not available for models 9150 to 9153 The status of the pin can be read via SCPI command FLT Fault Output pin Available for models 9120A 9121A 9122A 9123A 9124 only This pin has multiple functions a When Port Mode in the menu is set to Trigger FLT has no function b When Port Mode in the menu is set to RI DFTP the FLT pin can be used to determine the reason of a power supply fault The status of FLT can be derived from bits QUES OPER ESB RQS or it can be disabled QUES The output level of FLT reflects the state of the QUES bit When the QUES bit is 1 FLT output a Low signal otherwise if QUES bit is 0 FLT goes High OPER The output level of FLT reflects the of the OPER bit ESB The output level of FLT reflects the state of the ESB bit RQS The output level of FLT reflects the state of
34. igure identical baud rate settings for the power supply and the computer The default setting is 4800 Setting Address gt ADDRESS With this parameter it is possible to address each instrument The address range is 0 to 30 The default address is zero This is useful when multiple instruments of the same model are connected to a PC for remote connection The address is used to identify the instrument to control Port Mode A 4 pin connector in the rear panel is provided for digital input and output signals For models 9150 9151 9152 and 9153 it is a 2 pin connector This digital port can be configured to provide Fault Inhibit External Trigger or Digital I O functions The signal level is TTL TRIGGER Pins 1 and 2 can be used to apply external trigger sources to the power supply These pins can also be used to control the list operation RI DFI The Inhibit Input pin can be used to control the output state of the power supply RI function The Fault Output pin DFI function can be used to indicate internal faults of the power supply NOTE The Fault indicator function DFD is only available for models 9120A 9121A 9122A 9123A and 9124 DIGITAL I O Read and control output and input state of the 2 available pins For models 9150 9151 9152 and 9153 only digital input is available For Models 9120A 9121A 9122A 9123A 9124 Mode Trigger RI DFI DIGITAL VO Pin 1 AN
35. input parameters for generating a list include the name of the list file the input steps no more than 200 steps the step time the minimum is 1 mS and the value of each step The list file can be stored in ROM with a capacity of 4K from where it can be recalled This memory area is divided into four areas 1 2 3 4 Each area can store a certain amount of groups and each group has an assigned maximum capacity according to the table below Memory area Number of groups area Capacity group 1 1 4KByte 2 2 2KByte 3 4 1KByte 4 8 512 Byte Example Group C can store 4 groups each group has a maximum capacity of 1KByte The power supply executes a list in CONTINIOUS or Step mode In CONTINIOUS mode the power supply will start executing the list once As soon as a trigger signal is received it will wait until the next trigger signal is received Before you edit the list file set the trigger source in the menu to immediate Example 1 Press 2 Press up or down key to select Config press to confirm 3 Press up or down key to select Trig Source press to confirm 4 Press up or down key to select Immediat press to confirm Operation Generate file 2 cycles continuous mode 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PressCShift Menu into menu operation VED displays Config press Y to select List Set press CEnter yo confirm VED disp
36. ist operation RI DFI function Inhibit Input controls the output state of the power supply The Fault Output can indicate the reason for internal failure DIGITAL I O function Read and control the state of the digital port Command syntax SOURce PORT FUNCtion Parameter TRIGgerlIRIDFilDIGital Query syntax SOURce PORT FUNCtion RST value TRIGger SOUR ce RI MODE This command sets the input mode of the RI input pin Command syntax SOURce RI MODE Parameter OFFILATChingILIVE Query syntax SOURce RI MODE RST value OFF SOURce DFI SOURce This command sets output source of the DFI output pin Not available for models 9150 9151 9152 and 9153 Command syntax SOURce DFI SOURce Parameter OFFIQUESIOPERIESBIRQS Query syntax SOURce DFI SOURce RST value OFF 42 SOURce DIGital OUTPut STATe This command sets the output state of the digital port This command can be used when the mode of the port is set to DIGITAL Not available for models 9150 9151 9152 and 9153 Command syntax SOURce OUTPut STATe Paremeter OFFIONIOI1 SOUR ce DIGital INPut STATe This command sets the input state of port This command can be used when the mode of the port is set to DIGITAL Command syntax SOURce DIG INPut STATe Trigger commands TRIGger IMMediate When trigger source is command mode this command will give a trigger signal Its function is as the same as TRG command Order syntax TRIGger M
37. lays Call ListFile press Y to select Edit ListFile press to confirm VED displays Continuous press to confirm VFD displays Repeat press to confirm VED displays Second Select ms then press to confirm VED displays List Count _ press numeric key or move the rotary knob set number of cycles in this example count is 2 press to confirm VFD displays 1th xV press numeric key or move the rotary knob set the maximum voltage press to confirm VFD displays lth x x A press numeric key or move the rotary knob set the maximum current press CEnter Jo confirm VED displays 1th mS press numeric key or move the rotary knob set delay time press to confirm VFD displays 2th x xV press numeric key or move the rotary knob set the maximum voltage press CEnter o confirm VFD displays 2th A press numeric key or move the rotary knob set the maximum current press to confirm VED displays 2th mS press numeric key or move the rotary knob set delay time press to confirm VED display Store File_ press numeric key or move the rotary knob set the register number 1 to 8 press to confirm Press two times to escape menu operation Execute file 20 16 Press Shift 4 to set the list file then press Shift 4 to run the list file Press Shift D Clist stop If you have created several list files you can call the list file that you need by Call ListFile function in the menu Press Eso
38. ltage condition 3 CC The power supply is in constant current condition 4 RI Show the input level condition of RI Quest condition register 0 OV Over voltage 1 OT Over temperature 2 UNR The output of the power supply is unregulated Standard event status register 0 OPC Operation of power supply is completed 2 QYE Query error Data of output array is missing 3 DDE Device dependent error Data stored in register is missing or error occurs in 30 preliminary checkout 4 EXE Execution error Command parameter overflows or the condition is not right 5 CME Command error Syntax or semantic error occurs when receiving information Power on It is 1when power supply is reset 7 PON Status byte register 3 QUES If a quest enable condition changes QUES is 1 5 ESB If a standard event status enable register changes ESB is 1 6 MSS RQS T OPER If a operation event enable register changes OPER is 1 Structure of condition register Quest condition register condition event enable OV OT Unr n u n u n u n u AD NB WN KY o n u Operation event register Status byte register condition event enable event enable CAL WTG CV CC RI n u n u NYDN fF WN FY CO n u Standard event status register event_ enable 31 4 4 SCPI Command Description Common IEEE488 2 Commands CLS This command clears the following registers Standard event status
39. m 2010 2009 B amp K Precision Corp Printed in China v1 14 51
40. n2 1 Press 2 Use the numeric keys 0 to 9 and confirm your entry by pressing 3 4 Setting the Current The Current output is adjustable from 0A to the maximum current value of each model 1 Press 2 Enter a numerical value or use the Aand Wkeys to change the current value 3 Press to confirm the value 3 5 Save and Recall Operation You can store up to 50 different operating states in memory locations 1 through 50 Each operating state includes a constant voltage value constant current value maximum output voltage value and voltage step value To save a setting Set the desired Voltage and Current value Press the save key Use the knob to scroll to one of the memory locations 1 50 Press to assign and store the current settings to the selected memory location To recall a setting Press the Recall key Use the knob to scroll to the memory location where the settings you want to recall are stored Press to recall and activate those settings You can also use the SCPI command SAV RCL to save and recall respectively 3 6 Menu Operation 3 6 1 Menu Description Press Shift Menu to enter menu mode The menu parameters will be displayed in the bottom right field of the display Use the A and Y keys to scroll through the menu list and press to select a menu and view the parameters Press to return to the higher level menu and to return to the main operating mode
41. ng state of the power supply in EEPROM is lost the VFD will display Error Config Data AN Warning The power supply is shipped from the factory with a power line cord that has a plug appropriate for your location Your power supply is equipped with a 3 wire grounding type power cord the third conductor being the ground The power supply is grounded only when the power line cord is plugged into an appropriate receptacle Do not operate your power supply without adequate cabinet ground connection 1 4 Output Verification The following procedures verify that the power supply outputs the correct voltage and current levels and properly responds to entries from the front panel Voltage Output Check The following steps verify basic voltage functions without load 1 Turn on the power supply 2 Enable the outputs Press the key Notice the CV annunciator turning on 3 Set the voltage value Set a different voltage value Make sure that the set value and output value are the same Also check if the output current value is zero or close to zero A 4 Ensure that the voltage can be adjusted from zero to the maximum rated value Current Output Check The following steps check the basic current functionality by shorting the power supply s output 1 Turn on the power supply 2 Disable the output by pressing the Out oniott The ON annunciator is turned off 3 Connect a short across the and output terminals with an insula
42. oduction Description Models 9120A 9121A 9122A 9123A 9124 9150 9151 9152 and 9153 are fully programmable linear DC Power Supplies that provide you with clean and reliable power high resolution and accuracy combined with fast transient response times and excellent temperature stability The front panel keys and the control knob provide a convenient interface for adjusting Voltage and Current storing and recalling operating states or enabling disabling the output This power supply is suitable for either bench or rack mounted operation The 912xA is a compact laboratory grade power supply well suited for applications in design production or use in university labs Features Very high accuracy and resolution 0 1 mV 0 1 mA Low ripple and low noise Fast settling time of lt 150 us 5 5 digit digital voltage meter and mQ meter Convenient data entry via knob or numerical key pad Over Temperature OTP protection Bright and easy to read display VFD technology Excellent temperature stability Output on off control SCPI compatible command set Communicate via USB RS232 or GPIB model 9123A only interface Application Software for front panel emulation and simple test sequence generation Rack mount kit available Closed case calibration Remote Sense Function Discrete Fault Indicator Remote Inhibit DFI RD Can be used to turn off power supplies simultaneously DFI available for models 9120A 9121A 9122A 9123A 9124
43. only List Mode Generate store and execute test sequences without the need for an external computer 2 Quick Reference 2 1 The Front Panel For Models 9120A 9121A 9122A 9123A 9124 For Models 9150 9151 9152 9153 1 2 VFD display 1 2 Rotary knob 3 Power switch 4 Numeric keys auxiliary functions Function keys Up Down keys and Enter key Output terminals 2 D e e Digital Voltmeter terminals For Model 9150 9151 9152 9153 2 2 The Rear Panel For Models 9120A 9121A 9122A 9123A 9124 LINE RATING 175VA MAX Tn 006002156269 atl alors For Models 9150 9151 9152 9153 Digital Voltmeter terminals For models 9150 9151 9152 and 9153 these terminals are in the front panel AC power inlet and fuse compartment Ventilation holes Quick connect terminal for Remote sensing and digital port functions digital I O DFI RI and ext trigger TTL interface connector for remote control AC Power selection switch 110 V 220 V le e e e IS E 2 3 Preliminary Checkout The following steps help you verify that the power supply is ready for use 1 Check the list of supplied items Verify that you have received the following items with your power supply If anything is missing contact your authorized B amp K Precision distributor Power cord Instruction manual Calibration Report Communication cable s
44. op bits 1 fixed 5 Start Bits 1 fixed 26 Data Frame Format Parity None Start Stop Bit 8 Data Bits Bit Parity Odd Start Parity Stop Even Bit 8 Data Bits Bit Bit End of String character is mn 0x0a DB9 Interface Details The DB9 connector in the rear panel of the power supply provides a TTL level signal It can be connected to a standard PC interface via the IT E131 IT E132 or IT E135 isolated converter adapter Flow Control There are no hardware flow controls for sending and receiving commands to the power supply The average time it takes to both send and receive every command is approximately 200ms In the case of more complex commands more time may be required to complete transmission Note Configuration of address parameter Communication via RS232 and USB Setting of the address is optional It is not required to communicate with the instrument The address can be set from the front panel and is stored in non volatile memory This feature is useful when communicating via USB and connecting several instruments e g via a USB hub In this scenario Windows assigns a virtual COM port to each device which is unknown prior to establishing communications with the instrument could be different each time In this case the user can correlate each virtual COM port randomly assigned by Windows with a user defined address Communication via GPIB Setting of the
45. original purchaser that its products and the component parts thereof will be free from defects in workmanship and materials for a period of one year for the 9120A 9123A 9124 series and two years for the 9150 series from date of purchase B amp K Precision Corp will without charge repair or replace at its option defective product or component parts Returned product must be accompanied by proof of the purchase date in the form of a sales receipt To obtain warranty coverage in the U S A this product must be registered by completing a warranty registration form on our website www bkprecision com within fifteen 15 days of purchase Exclusions This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs The warranty is void if the serial number is altered defaced or removed B amp K Precision Corp shall not be liable for any consequential damages including without limitation damages resulting from loss of use Some states do not allow limitations of incidental or consequential damages So the above limitation or exclusion may not apply to you This warranty gives you specific rights and you may have other rights which vary from state to state B amp K Precision Corp 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 714 921 9095 50 BK EFSMCIAMA IT MiQMIQGINITW 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision co
46. ower supply is off OFF The signal applied to the RI port does not affect the output state of the power supply Discrete Fault Interupt DFT Output NOTE Available for models 9120A 9121A 9122A 9123A and 9124A only Used to indicate that a fault has occurred in power supply The DFI function can be activated by state changes of the QUES OPER ESB RQS bits QUES The output level of DFI reflects the state of the QUES bit When the QUES bit is 1 the DFI output goes to a low level When QUES bit is 0 DFI output goes High OPER The output level of DFI reflects the state of the OPER bit ESB The output level of DFI reflects the state of the ESB bit RQS The output level of DFI reflects the state of the RQS bit OFF The output level of the DFI port remains high KEY LOCK It is possible to set a password to lock the function keys After setting the password all the function keys on the front panel will be locked except the OUT On Off key You must enter the correct password to enable the keys again If you don t want to lock the function keys and you selected the gt KEY LOCK menu simply press the Enter key Do NOT enter any numbers When shipped from the factory no password is set and the function keys are unlocked The start bit of your desired password should not be 0 List Set This mode allows you to create a sequence of steps store it into the power supply s non volatile memory and execute it The
47. ry syntax None SYSTem LOCal This command configures the instrument for front panel operation Command syntax SYST LOC Parameter None Query syntax None SYSTem RWLock STATe This command also sets the instrument to remote control mode When using this command it is not possible to press LOCAL key on the front panel to revert back to manual mode Command syntax SYST RWL STATus QUEStionable EVENt This command queries the parameters of the quest event register After execution the quest event register is reset Query syntax STATus QUEStionable EVENt Parameter None Return parameter lt NR1 gt Reference command STATus QUEStionable ENABle 35 Bit map of standard event status enable register Bit Position 7 6 5 4 3 2 1 0 Bit name no use no use no use no use nouse unr OT OV Bit Value 4 2 1 STATus QUEStionable CONDition This command queries the parameters of the quest condition register When a bit of the quest condition changes the corresponding bit value in the quest event register will be set to 1 Query syntax STATus QUEStionable CONDition Parameter None Return parameter lt NR1 gt STATus QUEStionable ENABle This command sets the parameter of the quest event enable register This parameter determines which bit of the quest event register is set to 1 Ifa QUES condition changes the QUES bit of status byte register will be set to 1 Command syntax STATus
48. s OPERation ENABle Return parameter lt NR1 gt Reference command PSC Output Commands OUTPut STATe This command sets the power supply output on or off Command syntax OUTPut STATe lt bool gt Parameter OILIONIOFF RST value OFF Query syntax OUTPut STATe Return parameter Oll Usage If output timer is required send command OUTPUT TIMER ON first then set OUTPUT ON These two commands must be set in this order to function properly OUTPut TIMer STATe This command sets the output timer state of the power supply Command syntax OUTPut TIMer STATe lt bool gt Parameter OMIONIOFF RST value OFF Query syntax OUTPut TIMer STATe Return parameter OI1 Usage To start Timer First set OUTPUT TIMER ON then set OUTPUT ON To end Timer Set OUTPUT TIMER OFF to turn timer off To check timer status Send command OUTPUT TIMER OUTPut TIMer DATA This command sets the time of the output timer The unit is in SECOND and decimal fractions cannot be used for this command Command syntax ONPut TIMer DATA lt NR1 gt Parameter lt NRI gt RST value 1 Query syntax OUPut TIMer DATA Return parameter lt NR1 gt SOURce MODE This command configures the power supply for command fixed mode list mode or DVM mode FIXed Command fixed mode LIST List mode DRM Digital milliohm meter Command syntax SOURce MODE lt mode gt Parameter FIXedILISTIDRM RST value FIXed 37 Example MODE FIX Q
49. t 0 60A 0 27A 0 18A 0 9A LVp 0 5 5V 0 21V 0 31V 0 61 V 47 Load Regulation Voltage lt 0 01 0 5 mV lt 0 01 1 mV lt 0 01 1 mV of output offset Current lt 0 1 10 mA lt 0 1 5 mA lt 0 1 2 mA Line Regulation Voltage lt 0 02 0 1 mV lt 0 02 1 mV lt 0 02 1 mV of output offset Current lt 0 1 1 mA lt 0 01 1 mA lt 0 01 0 1 mA Programming resolution NOUE E ay a Current 1 mA 1 mA 0 1 mA Readback Meter Voltage 0 1 mV 0 1 mV 0 1 mV resolution Current 1 mA 0 1 mA 0 1 mA resolution Current 1 mA 1 mA 1 mA Programming accuracy 12 months 25 C 5 C Voltage lt 0 02 2 mV lt 0 02 6 mV lt 0 02 12 mV of output offset Current lt 0 1 30 mA lt 0 1 15 mA lt 0 05 10 mA Readback Meter Vol 2 1 y gt y gt y accuracy oltage lt 0 02 1 5 m lt 0 02 3 m lt 0 02 6 m 12months 25 C 5 C 15 mA UTA em 9of output offset Current lt 0 05 15 lt 0 05 10 lt 0 05 5 0 0 Riqne Neo Voltage pes oo lt 0 005 3 mVp p pe ala 20 Hz 20 MHz mrpP mer Current 15 mArms 5 mArms 3 mArms Speen aun Voltage lt 0 02 2 mV lt 0 02 5 mV lt 0 02 10 mV of output offset Current lt 0 1 30 mA lt 0 1 15 mA lt 0 05 5 mA Readback temperature voltage lt 0 02 2mV lt 0 02 5 mV lt 0 02 10 mV coefficient of output offset Current lt 0 1 20 mA lt 0 05 10 mA lt 0 05 5 mA 0 12 V r
50. tax CALibration SECure STATe Parameter None CALibration VOLTage LEVel This command sets the voltage calibration point Command syntax CALibration VOLTage LEVel lt point gt Parameter PI1IP2 CALibration VOLTage DATA lt numeric value gt Returns the actual output voltage value of calibration point Command syntax CALibration VOLTage DATA lt NRf gt Parameter lt NRf gt Example CAL VOLT 30 0002V CALibration CURRent LEVel This command sets the current calibration points P1 P2 P3 P4 Command syntax CALibration CURRent LEVel lt point gt Parameter P1IP2 CALibration CURRent DATA lt numeric value gt Return actual output current value to calibration point Command syntax CALibration CURRent DATA lt NRf gt Parameter lt NRf gt Example CAL VOLT 3 0002A CALibration DVM LEVel This command can set current calibration point P1 P2 P3 P4 Command syntax CALibration DVM LEVel lt point gt Parameter PlIP2IP3IP4 CALibration DVM DATA lt numeric value gt Return actual output current value to calibration point Command syntax CALibration DVM DATA lt NRf gt Parameter lt NRf gt Example CAL VOLT 3 0002A 44 CALibration SAVe This command saves the calibration coefficient into nonvolatile register Command syntax CALibration SAVe Parameter None CALibration INITial This command resets the current calibration coefficients to their default values Command syntax CALi
51. ted test lead Use a wire size sufficient to handle the maximum current 4 Enable the output 5 Adjust the voltage value to 1 0 volt Ensure that the CC annunciator is lit power supply is in CC operation mode 6 Adjust the current value Set a different Current value and check if the actual Current value is the same as the set Current value Also verify that the output voltage value is nearly zero 7 Ensure that the current can be adjusted from zero to the full rated value 8 Turn off the power supply and remove the short wire from the output terminals 1 5 If the power supply does not turn On Use the following steps to help resolve problems you might encounter when turning on the instrument 1 Verify that there is AC power applied to the power supply Verify that the power cord is firmly plugged into the power receptacle on the rear panel of the power supply Make sure the power outlet you are using is working properly and verify that the power supply is turned on 2 Verify the power line voltage setting Make sure the voltage selector switch is set according to the present line voltage 110 VAC or 220 VAC Change the voltage setting if it s not correct 3 Verify that the correct power line fuse is installed 1 5 1 Fuse Replacement Model Fuse Description 110 VAC Fuse Description 220 VAC 9120A T2 5A 250V T1 25A 250V 9121A T2 5A 250V T1 25A 250V 9124 T2 5A 250V T1 25A 250V 9122A T3 15A 250V T1 5A 250V 9123A T3
52. the RQS bit OFF The output level of FLT remains high c When Port Mode in menu is set to DIGITAL I O FLT functions as an output pin The status of the port can be programmed via SCPI command 3 9 Digital Volt Meter DVM The power supply provides a built in Digital Volt meter which can measure DC volts in a range from 0 40V The connectors are in the rear panel The voltage value is displayed on the bottom left field of the display To measure voltages connect the leads as shown here 23 By default the power supply is in DVM mode Press Shift followed by V ma to toggle between Voltmeter and mQ Meter mode 3 10 Milliohm Meter The instrument is also equipped with a Milliohm Meter which can accurately measure resistance up to 10 Q To protect the resistor make sure to select an appropriate power range before connecting it to the power supply To measure resistance connect the resistor as shown below POWER SUPPLY To measure resistance 1 Enable Ohmmeter mode Press Shift followed by V mQ Display will show mQ Range 0 1 W 2 Press Shift followed by 0 1 W 1 W 10 W to select an appropriate range for the resistor you are measuring Measurement range 0 1 W 1W 10 W Test voltage Output 1V 3 3 V 10 V 4 Remote Operation The DB9 TTL interface connector on the rear panel of the power supply can be connected to a RS 232 USB or 24 GPIB model 9123A only interface via a
53. ueries the input power of the power supply Command syntax MEASure SCALar POWer Parameter None Return parameter lt NR2 gt Return parameter unit W Example MEAS POW MEASure SCALar DVM DC This command queries the voltage reading of the digital volt meter Command syntax MEASure SCALar DVM Parameter None Return parameter lt NR2 gt Return parameter unit V Example MEAS DVM SENSe RESistance RANGe This command sets the range of the milliohm meter LOW 0 01W resistance range MIDDLE 0 1W resistance range 41 HIGH 1W resistance range Command syntax SENSe RESistance RANGe Parameter LOW MIDdle HIGH Example RES RANG LOW Query syntax SENSe RESistance RANGe Return parameter lt SRD gt MEASure SCALar RESistance DC This command queries the resistance reading of the milliohm meter Command syntax MEASure SCALar RESistance Parameter None Return parameter lt NR2 gt Return parameter unit Ohm Example MEAS RES Interface Configuration Commands SOURce SYSTem SENSe STATe lt bool gt This command enables disables the power supply s remote sense function Command syntax SYSTem SENSe STATe lt bool gt Parameter OILIONIOFF Query syntax SYSTem SENSe STATe RST value 0 SOURce PORT FUNCtion This command sets the mode of the port in the rear panel TRIGGER function Pinl pin2 are configured as external trigger source for the power supply and to control the l
54. uery syntax SOURce MODE Return parameter lt CRD gt Usage MODE FIX command can also be used to stop a list execution SOURce CURRent LEVel This command sets the current value of the power supply Command syntax SOURce CURRent LEVel lt NRf gt Parameter MIN TO MAXIMINIMAX Unit A mA RST value MIN Example CURR3A CURR 30mA CURR MAX CURR MIN Query syntax SOURce CURRent LEVel Parameter MINIMAX Example CURR CURR MAX CURR MIN Return parameter lt NR2 gt SOURce VOLTage LEVel This command sets the voltage value of the power supply Command syntax SOURce VOLTage LEVel lt NRf gt Parameter MIN TO MAXIMINIMAX Unit V mV kV RST value MAX Query syntax SOURce VOLTage LEVel Parameter MINIMAX Return parameter lt NR2 gt List File Commands List file operations can be executed using standard SCPI commands The commands must be executed in a certain order to successfully complete a list file Below is an example that demonstrates how to set a list in continuous mode with correct command order LIST MODE CONT LIST STEP ONCE LIST COUNT 2 LIST VOLT 1 2 LIST VOLT 2 4 LIST UNIT SECOND LIST WID 1 1 LIST WID 2 2 LIST NAME TEST LIST SAVE 1 MODE LIST Note Be sure to specify LIST AREA prior to using a Set of list commands similar to above For details on setting values for each commands refer to the descriptions below SOURce LIST MODE This command sets the tri
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