Keysight E4356A Operating Manual Download Page 1

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Operating and

Programming Guide

Keysight Model E4356A
Telecommunications
DC Power Supply

Summary of Contents for E4356A

Page 1: ...Operating and Programming Guide Keysight Model E4356A Telecommunications DC Power Supply ...

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Page 3: ...cts returned to Customer from another country Keysight Technologies shall pay for return of products to Customer Warranty services outside the country of initial purchase are included in Keysight Technologies product price only if Customer pays Keysight Technologies international prices defined as destination local currency price or U S or Geneva Export price If Keysight Technologies is unable wit...

Page 4: ...could result in personal injury If the instrument is to be energized via an external autotransformer for voltage reduction be certain that the autotransformer common terminal is connected to the neutral earthed pole of the ac power lines supply mains FUSES Only fuses with the required rated current voltage and specified type normal blow time delay etc should be used Do not use repaired fuses or sh...

Page 5: ...ed beyond a CAUTION sign until the indicated conditions are fully understood and met Acoustic Noise Information Herstellerbescheinigung Diese Information steht im Zusammenhang mit den Anforderungen der Maschinenläminformationsverordnung vom 18 Januar 1991 Schalldruckpegel Lp 70 dB A Am Arbeitsplatz Normaler Betrieb Nach EN 27779 Typprufung Manufacturer s Declaration This statement is provided to c...

Page 6: ...5 Declaration Page ...

Page 7: ...7 Damage 17 Packaging Material 17 Items Supplied 17 Location and Temperature 18 Bench Operation 18 Rack Mounting 18 Temperature Performance 18 Input Power Source 18 Installing the Power Cord 18 VXI plug play Power Products Instrument Drivers 20 Downloading and Installing the Driver 20 Accessing Online Help 20 3 TURN ON CHECKOUT 21 Introduction 21 Preliminary Checkout 21 Power On Checkout 21 Using ...

Page 8: ...nnecting One Power supply To Multiple Loads 32 Connecting Units in Auto Parallel 32 Connecting Units in Series 33 External Voltage Control 34 Controller Connections 35 Stand Alone Connections 35 Linked Connections 35 5 FRONT PANEL OPERATION 37 Introduction 37 Getting Acquainted 37 Programming The Output 40 Establishing Initial Conditions 40 Programming Voltage 40 Programming Overvoltage Protection...

Page 9: ...ection Circuits 53 Changing Outputs by Trigger 53 Saving and Recalling States 54 Writing to the Display 54 Programming Status 54 Detecting Events via SRO 54 Reading Specific Registers 54 Programming the Digital I O Port 55 System Considerations 55 Setting the GPIB Address 55 Changing the Power supply GPIB Address 55 Assigning the GPIB Address In Programs 56 DOS Drivers 57 Types of Drivers 57 Error...

Page 10: ...7 OUTP 77 OUTP PROT CLE OUTP PROT DEL 77 OUTP REL 78 OUTP REL POL 78 Status Subsystem 78 STAT PRES 78 Status Operation Registers 79 STAT OPER 79 STAT OPER COND 79 STAT OPER ENAB 79 STAT OPER NTR STAT OPER PTR 80 Status Questionable Registers 80 STAT OUES 80 STAT QUES COND 81 STAT QUES ENAB 81 STAT QUES NTR STAT QUES PTR 81 System Commands 82 SYST ERR 82 SYST LANG 82 SYST VERS 82 Trigger Subsystem ...

Page 11: ...vicing an Operation Status Mode Event 92 Adding More Operation Events 92 Servicing Questionable Status Events 92 Monitoring Both Phases of a Status Transition 92 A SPECIFICATIONS 93 B CALIBRATION 97 Introduction 97 Equipment Required 97 General Procedure 97 Parameters Calibrated 97 Test Setup 97 Front Panel Calibration 98 Entering the Calibration Values 98 Saving the Calibration Constants 98 Disab...

Page 12: ...ages 109 System Error Messages 109 E LINE VOLTAGE CONVERSION 111 F DIGITAL PORT FUNCTIONS 113 Digital Connector 113 Fault Inhibit Operation 113 Changing The Port Configuration 115 Digital I O Operation 116 Relay Link Operation 116 G COMPATIBILITY LANGUAGE 119 Introduction 119 Parallel Polling 119 H SERVICE ADDENDUM 123 Introduction 123 Areas of Difference 123 Chapter 2 Differences 123 Voltage and ...

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Page 14: ... GPIB interface Chapter 6 Programming the unit using SCPI and COMPatibility commands SCPI commands SCPI programming examples SCPI language dictionary Chapters 7 and 8 for SCPI commands Appendix G for COMPatibility commands Installing the Keysight VXI plug play instrument driver NOTE The driver must be installed on your pc to access the on line information Drivers are available on the web at www ke...

Page 15: ...cription Keysight Part No Cable assembly GPIB Cable assembly serial link Collar rotary output control Cover ac input safety see Table 1 3 see Table 1 3 5040 l700 5040 1676 Power cord assembly Rack mount kit Resistor calibration see Table 1 2 see Table 1 2 Appendix B Cover dc output Flatwasher ac input safety cover Foot cabinet Fuse power 25A 250V this is an internal fuse 5040 1674 3050 1053 5041 8...

Page 16: ...ibrating the power supply including changing the calibration protection password Remote Programming The power supply may be remotely programmed via the GPIB bus and or from an analog input port GPIB programming is with SCPI Standard Commands for Programmable Instruments commands that make the power supply programs compatible with those of other GPIB instruments A software Compatibility mode also p...

Page 17: ...ng the operating locus in the constant voltage region This region defines the CV mode Operating point 2 is defined by the load line cutting the operating locus in the constant current region This region defines the CC mode Appendix A lists the specifications and supplemental characteristics 80V 70V 26A 30A Vout Iout RL2 RL1 Is Vs Figure 1 1 Output Characteristic Curve Output Ranges Figure 1 1 show...

Page 18: ...erminated in a power plug see Options in Chapter 1 If the cord is not included contact your nearest Keysight Sales and Support Office see end of this guide to obtain the correct cord These models also include a power input safety cover with strain relief connector It is required to secure the power cord to the power supply Analog connector A 7 terminal analog plug see Table 1 4 that connects to th...

Page 19: ...ides will not impede the flow of air The temperature performance is as follows The unit operates without loss of performance within the temperature range of 0 C to 45 C Input Power Source Do not apply power to the power supply until directed to do so in Chapter 3 Check the line label on the rear of your unit and verify that the voltage shown there corresponds to the nominal line voltage of your po...

Page 20: ... the chassis earth ground stud 3 For single phase operation connect the neutral wire to the N input terminal and the line wire to the L input terminal this line is fused inside the unit 4 For line to line operation from a three phase source as shown in Figure 2 3 connect one phase to the N input terminal and another phase to the L input terminal this line is fused inside the unit Note The N termin...

Page 21: ...cess Keysight Technologies Web site at http www keysight com find drivers 2 Select the instrument for which you need the driver 3 Click on the driver either Windows 95 or Windows NT and download the executable file to your pc 4 Locate the file that you downloaded from the Web From the Start menu select Run path agxxxx exe where path is the directory path where the file is located and agxxxx is the...

Page 22: ...wired to the S terminal of the analog connector 3 If the power supply is not wired for local sensing make the above connections using small capacity wire AWG 22 is sufficient 4 Make sure that there is no load connected to the output terminals or bus bars Power On Checkout 1 Connect the power cord to the power supply 2 Turn the front panel power switch to ON 1 3 The power supply undergoes a self te...

Page 23: ... Table 3 1 Checking the Voltage Functions Output Terminals Open Procedure Display Explanation Output Terminals Open or Connected to a Voltmeter If Dis is on turn it off by pressing Press key VOLT 0 000 Default voltage setting CV annunciator should be on If CC annunicator is on increase the current by pressing one or more times until CC turns off and CV turns on Press VOLT 40 Program output to 40 v...

Page 24: ...lay Explanation Turn off the power supply and connect a 14 AWG or larger wire across the output and terminals If you intend to test at full rated output current use a wire or wires of sufficient size to carry the maximum current of the unit see Supplemental Characteristics in Chapter l and Table 4 2 in Chapter 4 Turn on the unit Meter mode Essentially zero output with Dis annunciator on Press VOLT...

Page 25: ...ep is based on the fact that a newly shipped power supply has the RST parameters stored in location 0 see Chapter 5 Front Panel for more information Press and notice that the output voltage returns to the value stored in location 1 Determining The GPIB Address When the power supply is turned on the display shows ADDR n where n is the power supply GPIB address Any time you want to see the address p...

Page 26: ...ndicates 60 volts or less it is safe to work inside the power supply 5 Replace the fuse with one of the same type see Table 1 4 in Chapter l Do not use a slow blow type fuse 6 If you removed it in step b be sure to replace the RFI shield 7 Replace the dust cover 8 Connect the line cord to the power source 9 Turn on the front panel power switch and check the operation Figure 3 1 Line Fuse Location ...

Page 27: ...or by writing to the EEPROM while the power supply is in the calibration mode To do this proceed as follows 1 Enable the calibration mode by pressing 2 PASWD will appear on the display 3 Press the number keys corresponding to the password followed by The Cal annunciator will go on Note On new equipment the calibration password corresponds to the four digit model number such as See Appendix A Calib...

Page 28: ...acity l Resistance 2 AWG Ampacity 1 Resistance 2 No m No m 14 25 0 0103 8 60 0 0025 12 30 0 0065 6 80 0 0016 10 40 0 0041 4 105 0 0010 NOTES 1 Ampacity is based on 30 C ambient temperature with conductor rated at 60 C For ambient temperature other than 30 C multiply the above ampacities by the following constants Temp C Constant Temp C Constant 21 25 1 08 41 45 0 71 26 30 1 00 46 50 0 58 31 35 0 9...

Page 29: ... Vdc of ground An earth ground terminal is provided on the rear panel for convenience such as grounding wire shields The earth ground terminal on the rear panel is a low noise signal ground for convenience only It is not designed to function as a safety ground Capacitive Loads In most cases the power supply will continue to be stable with additional external load capacitors However large load capa...

Page 30: ...ork is 1 0 Use the following formula to determine the Q of your output Q L 1 R C xt int e R where C model dependent internal capacitance see below L inductance of the load Rext equivalent series resistance of the load Rint model dependent internal resistance see below C 7 000 F Rint 14 m If the Q is greater than 0 5 inductive loads will ring with the output capacitance and will be damped according...

Page 31: ...e 4 1 Connect the sense leads carefully so that they do not become open circuited If sense leads are left open during operation the unit will regulate at the output terminals instead of at the load Remember to bundle or tie wrap the load leads to minimize inductance and reduce noise pickup CV Regulation The voltage load regulation specification in Table A 1 applies at the output terminals of the p...

Page 32: ...f a large bypass capacitor is required at the load and load lead length cannot be reduced then a sense lead bypass network may be needed to ensure stability see Figure 4 4 The voltage rating of the 33 F capacitors should be about 50 greater than the anticipated load lead drop Addition of the 20 resistors will cause a slight voltage rise at the remote sensing points For utmost voltage programming a...

Page 33: ...ductance and noise pickup Loads Load Connection Analog Connector Connect for remote sensing optional Connect for local sensing default Figure 4 6 Multiple Load Connection Remote Sensing Optional Connecting Units in Auto Parallel Figure 4 7 illustrates how power supplies can be connected in auto parallel for increased current output You can connect up to five units of the same model Use load leads ...

Page 34: ...ther units You must first enable remote inhibit RI and discrete fault indicator DFI operation See Fault Inhibit Operation in Appendix F for wiring information and Questionable Status Group in Chapter 8 for programming information Connecting Units in Series Floating voltages must not exceed 240 Vdc No output terminal may be more than 240 V from chassis ground Figure 4 8 shows how power supplies can...

Page 35: ...he output voltage and a voltage applied to the current programming input programs the output current See Figure 4 1 for an explanation of these programming input connections Wiring Considerations The input impedance of the analog input is over 30 k If the output impedance of your programming source is not negligible with this programming errors will result Larger output impedances result in propor...

Page 36: ...Alone Connections See Figure 4 10A Each stand alone power supply has its own GPIB bus address Stand alone power supplies may be connected to the bus in series configuration star configuration or a combination of the two You may connect from 1 to 15 stand alone power supplies to a controller GPIB interface Linked Connections See Figure 4 10B Up to 16 power supplies may be used at a single GPIB prim...

Page 37: ...ed Maximum total length of all GPIB cables including controller not to exceed 20 meters Use caution with individual lengths over 4 meters Maximum total length of all serial cables not to exceed 30 meters 1 2 3 NOTES A direct power supply is connected to the controller interface and must have a unique primary GPIB bus address The stand alone configuration uses only direct supplies connected to the ...

Page 38: ... Note You also can calibrate the power supply from the front panel see Appendix B Getting Acquainted The front panel is summarized in Figure 5 1 and Table 5 1 Note that the panel is organized as follows LCD display including annunciators Output VOLTAGE and CURRENT rotary RPG knobs SYSTEM keypad FUNCTION keypad ENTRY keypad Power LINE switch Some keys have two functions For example the System key c...

Page 39: ...ion is enabled Prot A protection circuit has caused the power supply to shut down Press to determine the reason Err An error has been generated as a result of remote operation Press to display the error code Cal The power supply is in calibration mode Shift The shift key has been pressed Rmt The power supply is in the remote mode controlled over the GPIB Addr The power supply is addressed to liste...

Page 40: ...o see which protection circuit caused the power supply to shut down Response can be OC overcurrent OT overtemperature or OV overvoltage If no protection circuit has tripped the display will show dashes Press this key to reset the protection circuit If the condition that caused the circuit to trip has been removed the Prot annunciator will go off Press to enable or disable the power supply OCP trip...

Page 41: ...ff Protection circuits cleared Prot annunciator off Overvoltage protection set to maximum Programming Voltage To program the output for 45 volts proceed as follows Press The display will change from meter mode to indicate VOLTS Press If you discover a mistake before pressing erase the incorrect value with the key The display will return to the meter mode and indicate 0 000 volts Press to enable th...

Page 42: ...ess the Prot annunciator will turn off and the output voltage will return to normal Programming Current You may program the power supply current without a load but must have a load in order to draw output current These tests assume you have the load connected in accordance with the information in Chapter 4 If you do not have a load on the power supply you may connect a short across the output term...

Page 43: ...t annunciator will go off and the output will be restored to normal If desired you can also restore the output by disabling the OCP function press to turn off the OCP annunciator This restores the output but does not clear any condition that may have caused OCP to trip Note Under certain conditions the OCP circuit may fail to clear because load demand occurs before the power supply has time to bui...

Page 44: ... new power supply it automatically turns on in a safe reset state with the following parameters off 0 minimum maximum off Minimum is the RST value specified in Table A 2 It is recommended that you leave the turn on conditions as programmed However you may change them To do this 1 Set up the power supply to the state you want when it is turned on 2 Store that state to location 0 3 Turn off the powe...

Page 45: ...001 are accepted as secondary address 1 and displayed as 0 01 Zeros following a digit are not ignored Thus 10 and 010 are both accepted as secondary address 10 and displayed as 0 10 Changing the Power supply GPIB Address Use the key and numerical keypad for entering addresses The power supply is shipped with a 5 stand alone address as the default The general procedure for setting an address is Act...

Page 46: ...tandard Commands for Programmable Instruments Volume 3 Data Interchange Format Standard Commands for Programmable Instruments Volume 4 Instrument Classes To obtain a copy of the above documents contact Fred Bode Executive Director SCPI Consortium 8380 Hercules Drive Suite P3 Ls Mesa CA 91942 USA GPIB References The most important GPIB documents are your controller programming manuals Keysight BASI...

Page 47: ... Language were earlier versions of SCPI If you have programmed in either then you probably can go directly to Chapter 3 Language Dictionary Conventions The following conventions are used throughout this chapter Angle brackets Items within angle brackets are parameter abbreviations For example NR1 indicates a specific form of numerical data Vertical bar Vertical bars separate one of two or more alt...

Page 48: ...ont of every root level command If you enter STATUS the active header path moves one colon to the right The interface is now ready to accept OPERATION PRESET or QUESTIONABLE as the next header Note that you must include the colon because it is required between headers If you next enter OPERATION the active path again moves one colon to the right The interface is now ready to accept EVENT CONDITON ...

Page 49: ...systems and the use of the root specifier to move between subsytems Including Common Commands You can combine common commands with system commands in the same message Treat the common command as a message unit by separating it with the message unit separator Common commands do not affect the active header path you may insert them anywhere in the message VOLT TRIG 7 5 INIT TRG OUTP OFF RCL 2 OUTP O...

Page 50: ... briefly described here with more details in subsequent paragraphs Figure 6 2 Command Message Structure The basic parts of the message in Figure 6 1 are Message Component Example Headers VOLT LEV PROT CURR Header Separator The colon in VOLT LEV Data 4 5 4 8 Data Separator The space in VOLT 4 5 and PROT 4 8 Message Units VOLT LEV 4 5 PROT 4 8 CURR Message Unit Separator The semicolons in VOLT LEV 4...

Page 51: ...er if you combine two or more message units into a compound message you may need to enter the optional header This is explained under Traversing the Command Tree Query Indicator Following a header with a question mark turns it into a query VOLT VOLT PROT If a query contains a parameter place the query indicator at the end of the last header VOLT PROT MAX Message Unit Separator When two or more mes...

Page 52: ...implicit in the range specification for the parameter Table 6 2 Suffixes and Multipliers Class Suffix Unit Unit with Multiplier Current A Ampere MA milliampere Amplitude V Volt MV millivolt Time S second MS millisecond Common Multipliers lE3 K kilo 1E 3 M milli 1E 6 U micro Boolean Data Either form 1 0 or ON OFF may be sent with commands Queries always return 1 or 0 OUTPut OFF CURRent PROTection 1...

Page 53: ...ment OPC could prevent subsequent commands from being executed OPC This sets the OPC status bit when all pending operations have completed Since your program can read this status bit on an interrupt basis OPC allows subsequent commands to be executed The trigger subsystem must be in the Idle state in order for the status OPC bit to be true Therefore as far as triggers are concerned OPC is false wh...

Page 54: ...e programmed immediate output levels The following statements shows some basic trigger commands OUTP OFF Disable the output VOLT LEV IMM 22 TRIG 25 Program the immediate voltage level to 22V and the pending triggered level to 25 V CURR LEV IMM I5 TRIG 25 Program the immediate current level to 15 A and the pending triggered level to 25 A VOLT LEV IMM TRIG CURR LEV IMM TRIG Check all the programmed ...

Page 55: ... Chapter 8 explains the functions and bit configurations of all status registers Refer to Figure 8 1 in that chapter while examining the examples given here Detecting Events via SRO Usually you will want the power supply to generate interrupts assert SRQ upon particular events For this you must selectively enable the appropriate status register bits The following examples allow the power supply to...

Page 56: ...s set you can assign it inside programs Figure 4 10 shows the ways the power supply can be connected to the GPIB bus You can set up the GPIB address in one of three ways 1 As a stand alone unit the only unit at the address It has a primary address in the range of 0 to 30 For example 5 or 7 2 As the direct unit in a serial link It is the only unit connected directly to the GPIB bus The primary addr...

Page 57: ...address will be assigned to the variable PS 1000 Stand alone address The power supply will respond if it is set to 6 1010 PS 706 Statement for Keysight 82335A Interface 1010 ASSIGN PS TO 706 Statement for Keysight BASIC Interface 1020 Direct address The power supply will respond if it is set to 6 or 6 0 1030 PS 70600 Statement for Keysight 82335A Interface 1030 ASSIGN PS TO 70600 Statement for Key...

Page 58: ...message termination on EOI or line feed so set EOI w last byte of Write It is also recommended that you set Disable Auto Serial Polling All function calls return the status word IBSTA which contains a bit ERR that is set if the call results in an error When ERR is set an appropriate code is placed in variable IBERR Be sure to check IBSTA after every function call If it is not equal to zero branch ...

Page 59: ...power supply to CV mode with following voltage and current 1080 CODES VOLTAGE 78 CURRENT 25 GOSUB 2000 1085 1090 Query power supply outputs print to screen 1095 CODES MEASURE VOLTAGE CURRENT GOSUB 2000 GOSUB 3000 1100 VOUT OUTPUTS I 1105 IOUT OUTPUTS 2 1110 PRINT The output levels are VOUT Volts and IOUT Amps 1115 1120 Program triggered current level to value insufficient to maintain 1125 unit wit...

Page 60: ...015 RETURN IBM Controller Using National Interface 990 Merge DECL BAS here 1000 Power supply Variable PS Stand Alone Address 706 1005 CODES SPACE 50 MODE SPACE 5 OEVENT SPACE 20 1010 D SPACE 60 OUTPUT SPACE 40 BDNAME PS 1015 DIM OUTPUT 2 1020 1025 Set up power supply interface for DOS driver 1030 CALL IBFIND BDNAME PS 1035 IF PS O THEN PRINT IBFIND Failed 1040 CALL IBCLR PS 1045 1050 Program power...

Page 61: ...VENT 1220 IF OEVENT AND 1024 1024 THEN PRINT Unit switched to CC mode 1225 1230 Clear status circuit 1235 CODES CLS GOSUB 2000 1240 FOR I 1 TO 50 NEXT I Wait for unit to clear 1245 1250 Disable output and save present state to location 2 1255 CODES OUTPUT OFF SAV 2 GOSUB 2000 1260 END 1265 2000 Send command to power supply 2005 CALL IBWRT PS CODES 2010 IF IBSTAT 0 THEN GOTO 2100 Error detected 201...

Page 62: ...olts and Iout Amps 1055 1060 Program current triggered level to a value insufficient to maintain 1065 unit within its CV operating characteristic 1070 OUTPUT 706 CURR TRIG 1 1075 1080 Set operation status mask to detect mode change from CV to CC 1085 OUTPUT 706 STAT OPER ENAB 1280 PTR 1280 1090 1095 Enable Status Byte OPER summary bit 1100 OUTPUT 706 SRE 128 1105 1110 Arm trigger circuit and send ...

Page 63: ... STAT OPER PTR SOUR VOLT PROT LEV DISP WIND STAT STAT OPER PTR SOUR VOLT PROT LEV DISP WIND TEXT DATA STAT PRES CLS RCL DISP WIND TEXT DATA STAT QUES EVEN ESE RST INIT IMM STAT QUES COND ESE SAV INIT CONT STAT QUES ENAB ESR SRE INIT CONT STAT QUES ENAB IDN SRE MEAS CURR DC SYST ERR OPC STB MEAS VOLT DC SYST LANG OPC TRG OUTP STAT SYST LANG PSC TST OUTP STAT SYST VERS PSC WAI OUTP PROT CLE TRIG STA...

Page 64: ...cording to the model of power supply Parameters for all current models are listed in Table 7 1 at the end of this chapter Related Commands Where appropriate related commands or queries are included These are listed either because they are directly related by function or because reading about them will clarify or enhance your understanding of the original command or query Order of Presentation The ...

Page 65: ...ecifies any status registers affected In order to make use of this information you must refer to Chapter 8 Status Reporting which explains how to read specific register bits and use the information that they return Figure 7 1 Common Commands Syntax Diagram CLS Meaning and Type Clear Status Device Status Description This command causes the following actions see Chapter 8 Status Reporting for descri...

Page 66: ...r OPC Operation complete PON Power on QYE Query error Command Syntax ESE NRf Parameters 0 to 255 Power On Value See PSC Suffix None Example ESE 129 Query Syntax ESE Returned Parameters NR1 Register value Related Commands ESR PSC STB If PSC is programmed to 0 then the ESE command causes a write cycle to nonvolatile memory The nonvolatile memory has a finite maximum number of write cycles see Table ...

Page 67: ...operations See ESE for the bit configuration of the Standard Event Status register Pending operations are complete when All commands sent before OPC have been executed This includes overlapped commands Most commands are sequential and are completed before the next command is executed Overlapped commands are executed in parallel with other commands Commands that affect output voltage current or sta...

Page 68: ...ear command Query Syntax OPC Returned Parameters NR1 ASCII 1 is placed in the Output Queue when the power supply has completed operations Related Commands OPC TRIG WAI OPT Meaning and Type Option Identification Query Description This query requests the power supply to identify any options that are installed Options are identified by number A 0 indicates no options are installed Query Syntax OPT Re...

Page 69: ... state that was previously stored in memory with a SAV command to the specified location The following states are recalled CURR LEV IMM OUTP STAT OUTP REL POL CURR PROT STAT OUTP PROT DEL VOLT LEV IMM DIG DATA VAL OUTP REL STAT VOLT PROT LEV Sending RCL also does the following Forces an ABORt command before resetting any parameters this cancels any uncompleted trigger actions Disables the calibrat...

Page 70: ...tion This command stores the present state of the power supply to the specified location in memory Up to four states can be stored Under certain conditions see Turn On Conditions in Chapter 5 Front Panel Operation location 0 may hold the device state that is automatically recalled at power turn on The following power supply parameters are stored by SAV CURR LEV IMM OUTP STAT OUTP REL POL CURR PROT...

Page 71: ...latile memory The nonvolatile memory has a finite number of write cycles see Table A 2 Supplementary Characteristics Programs that repeatedly write to nonvolatile memory can eventually exceed the maximum number of write cycles and may cause the memory to fail STB Meaning and Type Status Byte Device Status Description This query reads the Status Byte register which contains the status summary bits ...

Page 72: ...escription This query causes the power supply to do a self test and report any errors see Selftest Error Messages in Chapter 3 Turn On Checkout Query Syntax TST Returned Parameters NR1 0 Indicates power supply passed self test Nonzero Indicates an error code Related Commands None WAI Meaning and Type Wait to Continue Device Status Description This command instructs the power supply not to process ...

Page 73: ...e 7 2 Subsystem Commands Tree Diagram ABOR This command cancels any trigger actions presently in process Pending trigger levels are reset equal to their corresponding immediate values ABOR also resets the WTG bit in the Operation Condition Status register see Chapter 8 Status Reporting If INIT CONT ON has been programmed the trigger subsystem initiates itself immediately after ABORt thereby settin...

Page 74: ...e CURRent LEVel IMMediate AMPLitude MIN SOURce CURRent LEVel TRIGgered AMPLitude SOURce CURRent LEVel TRIGgered AMPLitude MAX SOURce CURRent LEVel TRIGgered AMPLitude MIN Returned Parameters NR3 CURR and CURR TRIG return presently programmed immediate and triggered levels If not triggered level is programmed both returned values are the same CURR MAX and CURR MIN return the maximum and minimum pro...

Page 75: ...l I O Port Programming Chart Bit Configuration Pin Configuration 1 Bit Configuration Pin Configuration 1 Value 0 1 2 1 2 3 4 Value 0 1 2 1 2 3 4 0 0 0 0 Lo Lo Output Gnd 4 0 0 1 Lo Lo Input Gnd 1 1 0 0 Hi Lo Output Gnd 5 1 0 1 Hi Lo Input Gnd 2 0 1 0 Lo Hi Output Gnd 6 0 1 1 Lo Hi Input Gnd 3 1 1 0 Hi Hi Output Gnd 7 1 1 1 Hi Hi Input Gn 1 Pins 1 and 2 are always outputs Command Syntax SOURce DlGi...

Page 76: ...wever the three punctuation characters do not count toward the 12 character limit when they are preceded by an alphanumeric character When punctuation characters are included then the maximum number of characters alphanumeric punctuation that can be displayed is 15 If it exceeds the display capacity a message will be truncated to fit and no error message will be generated If any character in the m...

Page 77: ...tinuously enabled and INIT is redundant Command Syntax INITiate IMMediate INITiate CONTinuous bool Parameters For INIT IMM None For INIT CONT 0 1 OFF ON RST Value OFF Examples INIT INITIATE IMMEDIATE INIT CONT 1 INITIATE CONTINUOUS 1 Query Syntax For INIT IMM None For INIT CONT INIT CONT Returned Parameters NR1 0 1 Related Commands ABOR GET RST TRIG TRG Measure Subsystem This subsystem returns out...

Page 78: ...s restored to the state it was in before the protection feature occurred OUTP PROT DEL Sets the time between the programming of an output change that produces a CV CC or UNREG condition and the recording of that condition by the Status Operation Condition register The delay prevents the momentary changes in power supply status that can occur during reprogramming from being registered as events by ...

Page 79: ... ON when either relay command is sent the power supply output voltage is set to 0 during the time that the relays are changing polarity If the power supply is not configured for the relay option sending either relay command generates an error Command Syntax OUTPut RELay POLarity CRD Parameters NORMal REVerse RST Value NORM Examples OUTP REL POL NORM Query Syntax OUTPput RELay POLarity Returned Par...

Page 80: ...1 Register Value Examples STAT OPER STATUS OPERATIOBAL EVENT Related Commands CLS STAT OPER NTR STAT OPER PTR STAT OPER COND This query returns the value of the Operation Condition register That is a read only register which holds the real time unlatched operational status of the power supply Query Syntax STATus OPERation CONDition Parameters None Examples STAT OPER COND STATUS OPERATION CONDITION...

Page 81: ... itself generate positive or negative events in the corresponding Operation Event register Command Syntax STATus OPERtion NTRansition NRf STATus OPERtion PTRansition NRf Parameters 0 to 32727 Suffix None Default Value 0 Examples STAT OPER NTR 32 STAT OPER PTR 1312 Query Syntax STAT OPER NTR STAT OPER PTR Returned Parameters NR1 Register value Related Commands STAT OPER ENAB Status Questionable Reg...

Page 82: ...s These registers serve as polarity filters between the Questionable Enable and Questionable Event registers to cause the following actions When a bit of the Questionable NTR register is set to 1 then a 1 to 0 transition of the corresponding bit of the Questionable Condition register causes that bit in the Questionable Event register to be set When a bit of the Questionable PTR register is set to ...

Page 83: ...interface between its SCPI TMSL command language and its compatibility language The compatability language is provided for emulation of older power supply systems and is described in Appendix G Sending the command causes The alternate language to become active and to be stored in nonvolatile memory The power supply to reset to the state stored in Location 0 If the power supply is shut off it will ...

Page 84: ...amming compatibility with other instruments such as the Keysight Electronic Load family that may have more than one trigger source Command Syntax TRIGer SOURce CRD Parameters BUS RST Value BUS Examples TRIG SOUR BUS TRIGGER SOURCE BUS Query Syntax TRIGger SOURce Returned Parameters BUS Related Commands RST TRG TRIG IMM Voltage Subsystem This subsystem programs the output voltage of the power suppl...

Page 85: ...Related Commands For VOLT SAV RCL RST For VOLT TRIG ABOR VOLT RST VOLT PROT This command sets the overvoltage protection OVP level of the power supply If the output voltage exceeds the OVP level then the power supply output is disabled and the Questionable Condition status register OV bit is set see Chapter 8 Status Reporting An overvoltage condition can be cleared with the OUTP PROT CLE command a...

Page 86: ...AX OUTP REL STAT 0 l 2OFF ON OUTP REL STAT none OUTP REL POL NORM REV OUTP REL POL none STAT OPER COND none STAT OPER ENAB NRf STAT OPER ENAB none STAT OPER EVEN none STAT OPER NTR NRf STAT OPER NTR none STAT OPER PTR NRf STAT OPER PTR none STAT PRES none STAT QUES COND none STAT QUES ENAB NRf STAT QUES ENAB none STAT QUES EVEN none SYST ERR none SYST LANG TMSLICOMP SYST LANG none SYST VERS none T...

Page 87: ...N INIT CONT none Common Commands Command Parameters Command Parameters Command Parameters CLS None OPC None SRE NRf ESE NRf PSC bool SRE None ESE None PSC None STB None ESR None RCL NRf TRG None IDN None RST None TST None OPC None SAV NRf WAI None Programming Parameters Table 7 1 list the programming parameters For programming accuracy and resolution refer to Appendix A Table 7 1 Power supply Prog...

Page 88: ...ion negative transition Filter that functions as described under STAT OPER NTR PTR COMMANDS in Chapter 3 Language Dictionary This is a read write register An Event register that latches any condition that is passed through the PTR or NTR filters Reading the Event register clears it An Enable register that functions as described under STAT OPER ENAB in Chapter 3 Language Dictionary This is a read w...

Page 89: ...r current mode 5 CME Command error 7 PON Power on Questionable Status Group Status Byte and Service Request Enable Registers 0 OV The power module overvoltage protection circuit has tripped 3 QUES Questionable status summary bit 1 OC The power module overcurrent protection circuit has tripped 4 MAV Message Available summary bit 4 OT The power module has an overtemperature condition 5 ESB Event Sta...

Page 90: ...NRf STAT QUES NTR Programming 0 or STAT PRES Event None STAT QUES EVEN Reading or CLS Enable STAT QUES ENAB NRf STAT QUES ENAB Programming 0 Standard Event Status Group Register Functions This group consists of an Event register and an Enable register that are programmed by common commands The Standard Event Status Event register latches events relating to interface communication status see Table ...

Page 91: ... one or more bytes it sets the MAV bit 4 of the Status Byte register If too many unread error messages are accumulated in the queue a system error message is generated see Table 9 1 in Chapter 9 Error Messages The Output Queue is cleared at power on and by CLS Service Request Enable Register This register is a mask that determines which bits from the Status Byte register will be ORed to generate a...

Page 92: ...be set to permit an SRQ to be generated The commands to accomplish these two conditions are ESE 128 SRE 32 If PSC is programmed to 0 the contents of the Standard Event Enable and Service RequestEnable registers are saved in nonvolatile memory and recalled at power on This allows a PON event to generate SRQ at power on Programming PSC to 1 prevents these registers from being saved and they are clea...

Page 93: ...ecessary to add the decimal values for bit 8 value 64 to the programming commands of the Operation Status group The commands to do this are STAT OPER PTR 1280 ENAB 1280 It is not necessary to change any other registers since the programming for the operation summary bit OPER path has already been done Servicing Questionable Status Events To add OC overcurrent and OT overtemperature events program ...

Page 94: ...either output terminal grounded Constant Voltage rms Constant Voltage p p Constant Current rms measured with 60 cm leads 2 mV 16 mV 25 mA Readback Accuracy from front panel or over GPIB with respect to actual output 25 C 5 C Voltage Current 0 05 120 mV 0 l 35 mA Load Regulation change in output voltage or current for any load change within ratings Voltage Current 0 002 3 mV 0 005 2 mA Line Regulat...

Page 95: ...o signal ground binding post rms p p 500 A 4 mA Maximum Input VA and Power with full load with no load 3800 VA 2600 W 100 W AC Input Ranges selectable via internal switching see Appendix F 200 Vac1 nominal 230 Vac nominal Frequency 174 220 Vac 191 250 Vac 47 63 Hz 1 Below 185 Vac derate output voltage linearly to 75 3 V Output Terminal Isolation maximum from chassis ground 240 Vdc Maximum AC Line ...

Page 96: ...nal Output Impedance 0 25 to 8 08 V 490 Nonvolatile Savable States Memory Locations Memory Write Cycles Factory Prestored State 5 0 through 4 40 000 typical Location 0 Digital Port Characteristics Maximum ratings 16 5 Vdc between terminals 1 2 3 4 and from 1 or 2 to chassis FLT INH Terminals 1 2 Iol low level output current Vol low level output voltage 1 25 mA maximum 0 5 V maximum FLT INH Termina...

Page 97: ...gned to comply with CSA 22 2 No 231 IEC 348 UL 1244 RFI Suppression Complies with CISPR ll Group 1 Class B Dimensions Width Height with removable feet Depth with safety cover 425 5 mm 16 75 in 145 1 mm 5 71 in 640 mm 25 2 in Weight Net Shipping 27 7 kg 61 lb 31 4 kg 69 lb Output Impedance Curves Typical ...

Page 98: ...8A Shunt resistor 100 A 0 001 0 04 100 W Guildline 9230 100 GPIB Controller For Calibration over the GPIB HP Vectra or IBM compatible with GPIB Interface or Keysight BASIC series General Procedure Because the power supply output must be enabled during calibration voltages or currents hazardous to personnel and or damaging to equipment can appear at the output terminals Parameters Calibrated The fo...

Page 99: ...ion constants with ones you have just entered press CAL SAVED then appears on the display Disabling the Calibration Mode To disable the calibration mode press The display will return to meter mode with the Cal annunciator off Changing the Calibration Password The factory default password is the model number of your unit such as E4356A You can change the calibration password only when the power sup...

Page 100: ...ted constant is out of acceptable range an error occurs The power supply is now holding the new OVP calibration constant in RAM Meter mode OVPCAL CAL COMPLETE NOT CV MODE DOES NOT CAL Entering Current Calibration Values 1 Make certain appropriate shunt resistor see Table A l is the only load on the power supply 2 Select the first calibration point by pressing If the power supply is not in CC mode ...

Page 101: ...t computed readback constants 5 Incorrect computed programming constants 1 This is a hardware disable See the power supply Service Manual Calibration Over The GPIB You can calibrate the power supply by using SCPI commands within your controller programming statements Be sure you are familiar with calibration from the front panel before you calibrate from a controller The SCPI calibration commands ...

Page 102: ...EV This command sets the power supply to a calibration point that is then entered with CAL CURR DATA During calibration two points must be entered and the low end point MIN must be selected and entered first Command Syntax CALibrate CURRent LEVel MIN MAX Parameters CRD MINimum MAXimum Examples CAL CURR LEV MIN CAL CURR LEV MAX Query Syntax None Related Commands CAL CURR DATA CAL STAT CAL PASS This...

Page 103: ...of the calibration range must be selected and entered The power supply then computes new voltage calibration constants These constants are not stored in nonvolatile memory until saved with the CAL SAVE command Command Syntax CALibrate VOLTage DATA NRf Parameters See applicable Output Ratings in Chapter 1 General Information Default Suffix A Examples CAL VOLT 322 5 MV CAL VOLT DATA 3 225 Query Synt...

Page 104: ...ired if set to non zero value 200 Default password is the four digit model number 210 220 LINE 240 PASSWORD MUST BE EDITED FOR MODEL OTHER THAN 6680 230 240 OUTPUT Ps CAL STATE ON 4356 250 1 260 OUTPUT Ps CAL VOLTAGE LEVEL MIN 270 INPUT ENTER VOLTAGE MEASUREMENT FROM EXTERNAL VOLTMETER Volt_read 280 OUTPUT Ps CAL VOLTAGE Volt_read 290 OUTPUT Ps CAL VOLTAGE LEVEL MAX 300 INPUT ENTER VOLTAGE MEASURE...

Page 105: ...700 Current Volt_read Shunt_val 710 OUTPUT Ps CAL CURRENT Current 720 OUTPUT Ps CAL CURRENT LEVEL MAX 730 INPUT ENTER VOLTAGE MEASUREMENT FROM EXTERNAL VOLTMETER Volt_read 740 Current Volt_read Shunt_val 750 OUTPUT Ps CAL CURRENT Current 760 GOSUB Save_cal 770 IF Err_found THEN 780 INPUT ERRORS have occurred REPEAT CURRENT CALIBRATION Y 0R N Resp 790 IF TRIM UPC Resp l 1 Y THEN GOTO Volt_cal 800 E...

Page 106: ... is required to perform the tests Table C 1 Equipment Required for Verification Tests Equipment Characteristics Recommended Model Digital Voltmeter Resolution 10 nV 1 V Readout 8 1 2 digits Accuracy 20 ppm Keysight 3458A Current Monitor Resistor l00 A 0 001 0 04 100 W Guildline 9230 100 Current Monitoring Resistor The 4 terminal current monitoring resistor listed in Table B 1 is required to elimin...

Page 107: ...n selftest before you can proceed with these tests Voltage Programming and Readback Accuracy This test verifies that the voltage programming GPIB readback and front panel display functions are within specifications Figure C 1 1 shows the setup for the tests Measure the dc output voltage directly at the sense connections of the output terminals or bus bars Connect the output as shown Table C 2 Volt...

Page 108: ... within Low Current limits see applicable test table 7 Record the front panel display readback Value within specified readback limits see applicable test table 8 Program output current to full scale 9 Repeat Steps 6 and 7 Both current readings within specified High Current and readback limits see applicable test table 10 Disable the output 11 Remove the short from across the load Table C 4 Operati...

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Page 110: ...ts Bit Set Error Code Error Type Bit Set Error Code Error Type 5 100 thru 199 Command 3 300 thru 399 Device dependent 4 200 thru 299 Execution 2 400 thru 499 Query Table D 1 Summary of System Error Messages Error Number Error String Description Explanation Examples 100 Command error generic command error 101 Invalid character 102 Syntax error unrecognized command or data type 103 Invalid separator...

Page 111: ...ock data not accepted where positioned 220 Parameter error 221 Settings conflict uncoupled parameters 222 Data out of range e g outside the range of this device 223 Too much data out of memory block string or expression too long 240 Hardware error device dependent 241 Hardware missing device dependent 310 System error device dependent 313 Calibration memory lost out of calibration due to memory fa...

Page 112: ...he front panel 4 Slide the dustcover back far enough to expose the line select switch see Figure E 1 5 Observe the input rail LED under the RFI shield If the LED is on there is still hazardous voltage inside the unit Wait until the LED goes out this may take several minutes before proceeding 6 Connect a dc voltmeter across test points TP1 and TP2 It may be necessary to remove the RFI shield in ord...

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Page 114: ...h respect to pin 2 negative true INH Input pin 3 Used to shut down the power supply output Pin 3 is a high impedance input The unit shuts down when this input is driven low negative true This can be done by shorting pin 3 to pin 4 INH Common pin 4 Provides the common connection for the INH input Three examples are provided to show how to use the FLT INH circuits of your power supply Use twisted wi...

Page 115: ...s registers The fault condition is cleared by first removing the cause of the fault and then reading the appropriate status event register s In Figure F 3B the FLT output of one unit is connected to the INH input of another unit Although only two supplies are shown it is possible to chain other supplies with this arrangement A fault condition in any one of the power supplies will disable all of th...

Page 116: ...f This procedure should only be done by qualified electronics service personnel Proceed as follows 1 Turn off the power supply and disconnect the power cord from the power source 2 Remove the four screws that secure the two carrying straps and outer cover 3 Spread the bottom rear of the cover and pull it back to disengage it from the front panel 4 Slide the outer cover back to expose the top of th...

Page 117: ... 6 k pull up to 5 V Common pin 4 This pin is the common connection for the Digital I O ports INH FLT NOTE Connectors are removable 4 3 2 1 Coil Current 0 25 A Max 16 5 V Max Relay Driver Ports 0 1 2 Supply contains internal clamp diodes for inductive flyback A Relay Circuits 4 3 2 1 4 3 2 1 B Digital Interface Circuits Digital Output Ports 0 1 2 Digital Intput Port 2 TTL AS CMOS HC External pull u...

Page 118: ...d for relay link operation An error will be generated if you attempt to program the relay box without first configuring the digital port for relay link operation For more information about programming the relay refer to OUTP REL STAT in Chapter 7 For more information about the Relay Accessory refer to its manual see Table 1 4 Figure F 6 Relay Link Connections ...

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Page 120: ...re similax to SCPI commands but others are unique to ARPS For example the ARPS FOLD commands have no function with the Keysight E4356A power supplies Similarly there are some SCPI commands that have no ARPS function Parallel Polling When programmed for parallel polling and Compatibilty Language power supplies operating under the Keysight BASIC system can hang up the GPIB when the system is turned ...

Page 121: ... limit soft limit to the current programming value that the power supply will accept The programming ranges are the same as those used for ISET None VMAX IMAX These commands read the soft voltage or current limits None DLY x DLY xS DLY xMS These commands program the delay time before a new output voltage or current is implemented or an RST OUT ON or CLR command is received During the delay the CV ...

Page 122: ...e and recall power supply states except for output on off Each state includes voltage lst and 2nd rank current lst and 2nd rank soft voltage and current limit delay time service request on off foldback lst and 2nd rank mask lst and 2nd rank and hold Initial condition Each register is initiated to the turn on values SAV RCL STS This command reads the contents of the status register which maintains ...

Page 123: ...ditions UNMASK defines which conditions are defined as faults Initial condition SRQ OFF SRE SRQ This command reads the SRQ setting SRE CLR This command initializes the power supply to the power on state It also resets the PON bit in the serial poll register The command performs the same function as the Device Clear DCL interface message RST ERR This command determines the type of programming error...

Page 124: ...e standard service manual for the Keysight Series 667xA DC Power Supplies When troubleshooting follow the procedures outlined for Keysight Model 6674A This addendum documents only the differences between the standard troubleshooting procedures for Keysight Model 6674A and the Keysight E4356A Telecommunications DC Power Supply Areas of Difference Voltage and Current Values Table 2 2 Performance Tes...

Page 125: ...fect Vout 4 6 mV _____mV Vout 4 6 mV 40 µV Source Effect Vout 4 6 mV _____mV Vout 4 6 mV 40 µV PARD Ripple and Noise peak to peak 0 _____mV 16 mV 904 µV rms 0 _____mV 1 9 mV 150 µV Transient Response Time 900 µs 0 _____mV 100 mV 12 mV Constant Current Tests Current Programming and Readback Low Current 0 A Iout 25 mA _____mA 25 mA 153 µA Front Panel Display Readback Iout 30 mA _____mA Iout 30 mA 15...

Page 126: ... Keysight Part No Description ELECTRICAL PARTS A1 E4356 61023 Front panel pc assembly tested A2 5063 4851 GPIB pc assembly tested A3 5060 3338 FET pc assembly tested A5 E4356 61020 Control pc assembly tested A6 E4356 61022 Output pc assembly tested A7 E4356 61026 Snubber pc assembly tested mounted on heatsink D900 1906 0451 Diode rectifier UTF12780 mounted on heatsink L900 06674 80005 1st stage ou...

Page 127: ...757 0476 Resistor 301k R665 6664 0757 0199 Resistor 21 5k R690 0698 8827 Resistor 1M R691 0757 0465 Resistor 100k R718 0698 8695 Resistor 36k 0 1 R730 731 0699 0934 Resistor 36 65k 0 1 R768 8159 0005 Resistor 0 ohms R809 0699 0769 Resistor 17 5k 0 1 Table 5 10 A6 Output Board Ref Des Keysight Part No Description ELECTRICAL PARTS C901 903 905 0180 4705 Capacitor 6000 µF 100V Q903 1855 1003 Transist...

Page 128: ...CAL SAVE 103 CAL STAT 104 CAL VOLT 104 CAL VOLT LEV 104 CAL VOLT PROT 104 calibration errors 102 capacitive loads 28 cc mode 16 42 character strings 51 characteristics 96 output 16 checkout in case of trouble 24 output current 23 output voltage 22 power on 21 preliminary 21 replacing fuse 25 save and recall 24 checksum errors 26 combine commands common commands 48 root specifier 48 command complet...

Page 129: ...rams 57 external voltage control 34 F fan 18 fault inhibit 28 FLT indicator 90 FLT output 115 front panel 37 annunciators 38 function keys Current 39 OCP 39 Ouptut On Off 39 OV 39 Prot Clear 39 Protect 39 Voltage 39 fuse location 25 replacing 25 G ground earth 13 guide user s 13 H header 49 long form 49 short form 49 history 5 GPIB capabilities 46 command library for MS DOS 45 controller programmi...

Page 130: ...isters 91 primary address 44 55 print date 5 program examples 57 programming analog 16 auto parallel 33 current 41 53 digital I O 55 external voltage 34 front panel 15 overcurrent protection OCP 42 53 overvoltage protection OVP 40 53 parameters 86 remote 15 service request 92 status 54 triggers 53 voltage 40 53 PTR filter 92 Q queries 48 query indicator 50 questionable status group 89 R rack mount...

Page 131: ...0 status registers 87 configuration 88 subsystem commands ABOR 72 CURR PROT STAT 73 CURR CURR TRIG 73 DIG DATA 74 DISP 74 DISP MODE 75 DISP TEXT 75 INIT INIT CONT 76 MEAS CURR MEAS VOLT 76 OUTP 77 OUTP PROT CLE OUTP PROT DEL 77 OUTP REL 78 OUTP REL POL 78 STAT OPER COND 79 STAT OPER ENAB 79 STAT OPER NTR STAT OPER PTR 80 STAT OPER 79 STAT PRES 78 STAT QUES COND 81 STAT QUES ENAB 81 STAT QUES NTR S...

Page 132: ...Index 131 voltage programming 40 53 voltage sensing local 30 voltage sensing remote 30 VP 27 VXIplug play 13 20 W warranty 2 wire capacity 27 wire resistance 27 wire size 27 writing to the display 54 ...

Page 133: ...herlands 800 452 4844 Japan Asia Pacific Yokogawa Keysight Technologies Ltd Keysight Technologies Asia Pacific Ltd Measurement Assistance Center 17 21 F Shell Tower Time Square 9 1 Takakura Cho Hachioji Shi 1 Matheson Street Causeway Bay Tokyo 192 Japan Hong Kong 81 426 48 3860 852 2599 7070 Latin America Australia New Zealand Keysight Technologies Keysight Technologies Australia Ltd Latin America...

Page 134: ...This information is subject to change without notice Keysight Technologies 1999 2015 Edition 2 January 2015 5964 8166 www keysight com ...

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