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Chapter 4 Remote Interface Reference

System-Related Commands

92

*TST?

Perform a

complete

self-test of the power supply. Returns ‘‘0’’ if the self-test

passes or ‘‘1’’ or any non-zero value if it fails. If the self-test fails, an error
message is also generated with additional information on why the test failed.

*RST

Reset the power supply to its

power-on

state. The table below shows the state

of the power supply after a

RESET

from the

Recall

menu or

*RST

command

from the remote interface.

Note: The voltage and current step sizes listed above are typical value.

Command

E3646A

state

E3647A

state

E3648A

state

E3649A

state

CURR

3 A

0.8 A

5 A

1.4 A

CURR:STEP

0.052 mA

0.014 mA

0.095 mA

0.027 mA

CURR:TRIG

3 A

0.8 A

5 A

1.4 A

DISP

ON

OUTP

OFF

OUTP:REL

OFF

TRIG:DEL

0

TRIG:SOUR

BUS

VOLT

0 V

VOLT:STEP

0.35 mV

1.14 mV

0.38 mV

1.14 mV

VOLT:TRIG

0 V

VOLT:PROT

22.0 V

66.0 V

22.0 V

66.0 V

VOLT:PROT:STAT

ON

VOLT:RANG

P8V (Low)

P35V (Low)

P8V (Low)

P35V (Low)

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Содержание E364XA Series

Страница 1: ...ber E3646 90001 January 2000 For Safety information Warranties and Regulatory information see the pages behind the Index Copyright Agilent Technologies 2000 All Rights Reserved Agilent E364xA Dual Out...

Страница 2: ...and high resolution Excellent load and line regulation Low ripple and noise Overvoltage protection Five Operating states storage Tracking operation Easy to use controls Remote voltage sensing Front a...

Страница 3: ...ange selection Key 5 Overvoltage protection Key 6 Display limit Key 7 Resolution selection Keys 8 Voltage Current adjust selection Key 9 Knob 10 Output On Off Key 11 I O Configuration Menu Secure Key...

Страница 4: ...age Current adjust selection key Selects the knob control function for voltage or current adjustment 9 Knob Increases or decreases the value of the flashing digit by turning clockwise or counter clock...

Страница 5: ...b to current control mode by pressing key 5 Move the blinking digit to the appropriate position using the resolution selection keys and change the blinking digit value to the desired current limit by...

Страница 6: ...ction is enabled when the OVP2 annunciator turns on or the overvoltage protection circuit has caused the power supply to shutdown when the annunciator blinks CAL The power supply is in calibration mod...

Страница 7: ...pter 3 Set the GPIB address see chapter 3 Set the RS 232 baud rate and parity see chapter 3 1 AC inlet 2 Power line fuse holder assembly 3 Power line module 4 Output 1 Rear output terminals 5 Output 2...

Страница 8: ...as you are working with the power supply Each listing contains information to help you diagnose and solve the problem Application Programs Chapter 6 contains some remote interface applications to hel...

Страница 9: ...8...

Страница 10: ...1 Initial Inspection 31 Cooling and Location 31 Output Connections 32 Current Ratings 32 Voltage Drops 33 Load Consideration 33 Remote Voltage Sensing Connections 34 Multiple Loads 36 Chapter 3 Front...

Страница 11: ...tion to a Computer or Terminal 62 RS 232 Troubleshooting 63 Calibration Overview 64 Calibration Security 64 To Unsecure for Calibration 65 To Secure Against Calibration 66 Calibration Count 67 Calibra...

Страница 12: ...ing Commands 108 An Introduction to the SCPI Language 111 Command Format Used in This Manual 112 Command Separators 113 Using the MIN and MAX Parameters 113 Querying Parameter Settings 114 SCPI Comman...

Страница 13: ...0 Troubleshooting Hints 171 Unit Reports Errors 740 to 750 171 Unit Fails Self Test 171 Bias Supplies Problems 171 Self Test Procedures 172 Power On Self Test 172 Complete Self Test 172 General Disass...

Страница 14: ...mance Test Record 190 CC Performance Test Record 191 Calibration Reference 192 Agilent Technologies Calibration Services 192 Calibration Interval 192 To Unsecure the Power Supply Without the Security...

Страница 15: ...14 Contents Contents...

Страница 16: ...1 Quick Start...

Страница 17: ...his chapter prepare the power supply for use and help you get familiar with some of its front panel operations This chapter is intended for both the experienced and the inexperienced user because it c...

Страница 18: ...er supply If the power supply does not turn on properly see page 20 3 Perform a complete self test The complete self test performs a more extensive set of tests than those performed at power on Hold d...

Страница 19: ...ed The annunciator OVP1 OVP2 CV OUT1 and low voltage range indication annunciator turn on for example 8V annunciator turns on for the E3646A model and the knob is selected for voltage control 2 Enable...

Страница 20: ...1 0 volt to assure CC operation The CC annunciator will turn on To go back to normal mode press the key again or let the display time out after several seconds 5 Set the knob to the current control t...

Страница 21: ...supply is turned on 2 Verify the power line voltage setting The line voltage is set to the proper value for your country when the power supply is shipped from the factory Change the voltage setting if...

Страница 22: ...he power line fuse on the rear panel 1 Remove AC line power 2 Remove the cover Refer to General Disassembly on page 174 3 Set two sections of the line voltage selector switch on the PC board for the d...

Страница 23: ...the fuse holder assembly with a flat blade screwdriver from the rear panel 2 Remove the fuse holder from the assembly 3 Replace with the correct fuse 4 Replace the fuse holder assembly in rear panel V...

Страница 24: ...g hardware are included with each rack mounting kit Any Agilent Technologies System II instrument of the same size can be rack mounted beside the Agilent E3646A E3647A E3648A or E3649A Note Remove the...

Страница 25: ...Instrument 24 and slide kit 1494 0015 To rack mount two instruments of the same depth side by side order lock link kit 5061 9694 and flange kit 5063 9214 To install two instruments in a sliding suppo...

Страница 26: ...2 General Information...

Страница 27: ...upply This chapter also provides instructions for installation of your power supply and the output connections Unless otherwise stated the information in this manual applies to all the four models Thi...

Страница 28: ...SSO LV GHVLJQHG WR FRPSO ZLWK WKH IROORZLQJ VDIHW DQG 0 OHFWURPDJQHWLF RPSDWLELOLW UHTXLUHPHQWV 1 6DIHW 5HTXLUHPHQWV IRU OHFWULFDO TXLSPHQW IRU 0HDVXUHPHQW RQWURO DQG DERUDWRU 8VH 6 1R 6DIHW 5HTXLUHPH...

Страница 29: ...ack mount kit Agilent part number 5063 9243 0L2 Extra English manual set local language manual files are included on the CD ROM Agilent part number 5964 8251 Accessories The accessories listed below m...

Страница 30: ...or user defined operating states Automatic turn on self test Remote sense at rear panel terminals User calibration from the front panel or over the remote interfaces The front panel operation permits...

Страница 31: ...g the limit values of voltage and current limit mode Checking the operating status from the annunciators Checking the type of error from the error codes messages Front panel binding posts are availabl...

Страница 32: ...hat the display is not scratched or cracked Electrical Check Chapter 1 describes quick operation procedure that verifies to a high level of confidence that the power supply is operating in accordance...

Страница 33: ...AWG 14 Note When making load connections from the rear output terminals four load wire connection is recommended to keep good CV load regulation if carrying full rated current of the power supply Curr...

Страница 34: ...decreasing the size ofthecapacitive load A large load capacitor may cause the power supply to cross into CC or unregulatedmodemomentarily whentheoutputvoltageisreprogrammed The slew rate of the output...

Страница 35: ...mote voltage sensing is used to maintain 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 Whe...

Страница 36: ...ng point and output terminal due to the change in load current Because the sense leads are partofthe power supply sfeedback path keep the resistance ofthe sense leads at or below 0 5 per lead to maint...

Страница 37: ...ce of the power supply Each pair of wires should be asshortaspossibleandtwisted orbundledtoreduceleadinductanceand noise pick up If a shield is used connect one end to the power supply ground terminal...

Страница 38: ...3 Front Panel Operation and Features...

Страница 39: ...ion starting on page 40 Constant Current Operation starting on page 42 Tracking Operation starting on page 44 View Menu Operation starting on page 45 Configuring the Remote Interface starting on page...

Страница 40: ...ode you can also observe the change of the limit values when adjusting the knob If you press the key again or let the display time out after several seconds the power supply will return the display to...

Страница 41: ...he display to the limit mode Notice that the Limit annunciator flashes indicating that the display is in the limit mode When the display is in the limit mode you can see the voltage and current limit...

Страница 42: ...the display is in the meter mode 8 Verify that the power supply is in the constant voltage mode If you operate the power supply in the constant voltage CV mode verify that the CV annunciator is lit I...

Страница 43: ...the display to the limit mode Notice that the Limit annunciator flashes indicating that the display is in the limit mode When the display is in the limit mode you can see the voltage and current limit...

Страница 44: ...the display is in the meter mode 8 Verify that the power supply is in the constant current mode If you operate the power supply in the constant current CC mode verify that the CC annunciator is lit If...

Страница 45: ...n key until the Track annunciator turns on For example when the track mode is first enabled with the output1 selected the output2 supply will be set to the same voltage level as the output1 supply Onc...

Страница 46: ...or the front panel display will automatically return to the normal display to allow you to change the limit values After the display mode is set to V V or I I display mode all the annunciators remain...

Страница 47: ...xt on the display 3 Clear the errors and exit the menu All errors are cleared when you exit the menu by pressing key or let the display time out for about 30 seconds See Error Messages for more inform...

Страница 48: ...View menu and select CAL STRING 2 Scroll through the text of the message NO STRING is displayed if no calibration message is stored Press to increase the scrolling speed The Cal String can t be chang...

Страница 49: ...ed for emphasis All other choices are dimmed The interface selection is stored in non volatile memory and does not change when power has been off or after a power on reset RST command GPIB Configurati...

Страница 50: ...the RS 232 interface by turning the knob 3 Select the baud rate Select one of the following 300 600 1200 2400 4800 or 9600 factory setting baud 4 Select the parity and number of stop bits Select one o...

Страница 51: ...enu by turning the knob then press the key pressed or let the display time out Front panel operation 1 Set up the power supply for the desired operating state The storage feature remembers output volt...

Страница 52: ...ng power off on or without using RST command over the remote interface See page 92 for more details on RST command 3 Recall the stored operating state Remote interface operation Use the following comm...

Страница 53: ...w to clear overvoltage condition Front panel operation Setting the OVP Level and Enable the OVP Circuit 1 Turn on the power supply or 2 Select the output to be programmed 3 Enter the OVP menu and set...

Страница 54: ...age source such as a battery disconnect it first Clear the overvoltage condition by adjusting output voltage level or by adjusting OVP trip level The following steps show you how to clear the overvolt...

Страница 55: ...e by turning the knob 3 Clear the overvoltage condition and exit this menu The annunciator for OVP operation will not flash any more The output will return to the meter mode Remote interface operation...

Страница 56: ...the overvoltage condition occurs If external voltage source such as a battery is connected across the output and the overvoltage condition inadvertently occurs the SCR will continuously sink a large...

Страница 57: ...flashing digit disappears To see or check the changes while the output is disabled press before returning to meter mode Front panel operation output Off Remote interface operation OUTP OFF ON Disconne...

Страница 58: ...put on off state OVP on off state and trip levels When shipped from the factory storage locations 1 through 5 are empty You can assign a name to the storage locations You can name a location from the...

Страница 59: ...ximately 2 seconds to execute If all tests pass you can have a high confidence that the power supply is operational If the complete self test is successful PASS is displayed on the front panel If the...

Страница 60: ...the system firmware revision numbers Remote interface operation IDN The above command returns a string in the form Agilent Technologies E3646A 0 X X Y Y Z Z E3646A Be sure to dimension a string variab...

Страница 61: ...stored in non volatile memory and does not change when power has been off or after a power on reset RST command Your computer s GPIB interface card has its own address Be sure to avoid using the comp...

Страница 62: ...age 97 RS 232 Configuration Overview Configure the RS 232 interface using the parameters shown below Use the front panel key to select the baud rate parity and number of data bits See page 48 for more...

Страница 63: ...for your configuration you may have to use a wiring adapter If you are using a DTE to DTE cable make sure the adapterisa straight through type Typicaladaptersincludegenderchangers null modem adapters...

Страница 64: ...its Make sure that your computer is set up for 1 start bit and 2 stop bits these values are fixed on the power supply Make sure to execute the SYSTem REMote command to place the power supply in the re...

Страница 65: ...rity code is stored in non volatile memory and does not change when power has been off or after a power on reset RST command The security code may contain up to 11 alphanumeric characters or underscor...

Страница 66: ...2 Enter the security code Enter the security code using the control knob and resolution selection keys 3 Save the change and exit the menu You will see the above message if the security code is corre...

Страница 67: ...ing down Calibrate key and hold down the key until you hear a long beep And a message CAL MODE is displayed 2 Enter the security code Enter the desired security code using the control knob and resolut...

Страница 68: ...cure the power supply using the old security code Then enter the new code as shown below CAL SEC STAT OFF 003646 Unsecure with old code CAL SEC CODE ZZ001443 Enter new code CAL SEC STAT ON ZZ001443 Se...

Страница 69: ...remote interface You can read the calibration message whether the powers supply is secured or unsecured The calibration message may contain up to 40 characters From the front panel you can view 11 ch...

Страница 70: ...4 Remote Interface Reference...

Страница 71: ...ds starting on page 94 Interface Configuration Commands on page 97 The SCPI Status Registers starting on page 98 Status Reporting Commands starting on page 108 An Introduction to the SCPI Language sta...

Страница 72: ...ctions in this chapter for more complete details on each command Throughout this manual the following conventions are used for SCPI command syntax Square brackets indicate optional keywords or paramet...

Страница 73: ...Mediate AMPLitude MIN MAX VOLTage LEVel IMMediate STEP INCRement numeric value DEFault VOLTage LEVel IMMediate STEP INCRement DEFault VOLTage LEVel TRIGgered AMPLitude voltage MIN MAX VOLTage LEVel TR...

Страница 74: ...seconds MIN MAX DELay MIN MAX SOURce BUS IMM SOURce TRG see page 90 for more information DISPlay WINDow STATe OFF ON STATe MODE VV VI II MODE TEXT DATA quoted string TEXT DATA TEXT CLEar SYSTem BEEPer...

Страница 75: ...ON quoted code SECure STATe STRing quoted string STRing VOLTage DATA numeric value VOLTage LEVel MIN MID MAX VOLTage PROTection see page 97 for more information SYSTem INTerface GPIB RS232 LOCal REMo...

Страница 76: ...re information STATus QUEStionable EVENt ENABle enable value ENABle INSTrument EVENt ENABle enable value ENABle ISUMmary n EVENt CONDition ENABle enable value ENABle SYSTem ERRor CLS ESE enable value...

Страница 77: ...face Reference SCPI Command Summary 76 see page 120 for more information CLS ESR ESE enable value ESE IDN OPC OPC PSC 0 1 PSC RST SAV 1 2 3 4 5 RCL 1 2 3 4 5 STB SRE enable value SRE TRG TST WAI IEEE...

Страница 78: ...details on outputting command strings and entering data Using the APPLy Command The APPLy command provides the most straightforward method to program the power supply over the remote interface For exa...

Страница 79: ...queue bus enter statement Enter error string into computer print statement Print error string Selecting a Trigger Source The power supply will accept a bus software trigger or an immediate internal t...

Страница 80: ...A E3649A 0 8V 3A Range 0 20V 1 5A Range 0 35V 0 8A Range 0 60V 0 5A Range 0 8V 5A Range 0 20V 2 5A Range 0 35V 1 4A Range 0 60V 0 8A Range Voltage Programming Range 0 V to 8 24 V 0 V to 20 60 V 0 V to...

Страница 81: ...lid within the presently selected range An execution error will occur if the programmed values are not valid within the selected range You can substitute MINimum MAXimum or DEFault in place of a speci...

Страница 82: ...ediate current level using the UP or DOWN parameter by a predetermined amount The command CURRent STEP sets the amount of increase or decrease Notice that a new increment setting will cause an executi...

Страница 83: ...ow to use the CURR UP or CURR DOWN command to increase or decrease the output current with the CURR STEP command CURR STEP 0 01 Set the step size to 0 01 A CURR UP Increase the output current CURR STE...

Страница 84: ...If no node follows the couple command TRIGger subsystem is assumed to be coupled The parameter indicates to which logical outputs the specified coupling is to apply A listofoutputsspecifiesaparticula...

Страница 85: ...the tracking mode state of the power supply The returned value is 0 OFF or 1 ON VOLTage voltage MINimum MAXimum UP DOWN Program the immediate voltage level of the power supply The immediate level is t...

Страница 86: ...rently specified The returned parameter is a numeric value DEFault gives the minimum resolution step size in unit of volts Example The following program segments show how to use the VOLT UP or VOLT DO...

Страница 87: ...1 if the overvoltage protection circuit is tripped and not cleared or a 0 if not tripped VOLTage PROTection CLEar Cause the overvoltage protection circuit to be cleared After this command the output v...

Страница 88: ...is set to the triggered level immediately But if the trigger source is the bus the power supply is set to the triggered level after receiving the Group Execute Trigger GET or TRG command Trigger Sourc...

Страница 89: ...IG SOUR BUS TRG WAI TRG WAI You can use the OPC operation complete query command or the OPC operation complete command to signal when the operation is complete The OPC command returns 1 to the output...

Страница 90: ...nds MAX 3600 seconds At RST this value is set to 0 seconds TRIGger DELay MINimum MAXimum Query the trigger delay TRIGger SOURce BUS IMMediate Select the source from which the power supply will accept...

Страница 91: ...is set to the V I display mode DISPlay MODE Query the state of the display mode Returns a string VV II or VI DISPlay Query the front panel display setting Returns 0 OFF or 1 ON DISPlay TEXT quoted str...

Страница 92: ...was stored When you have read all errors from the queue the ERROR annunciator turns off and the errors are cleared See Error Messages starting on page 121 for more details SYSTem VERSion Query the po...

Страница 93: ...shows the state of the power supply after a RESET from the Recall menu or RST command from the remote interface Note The voltage and current step sizes listed above are typical value Command E3646A st...

Страница 94: ...tate stored in the specified storage location When shipped from the factory storage locations 1 through 5 are empty Note DISP OFF ON can be stored and recalled in remote interface mode only Going to l...

Страница 95: ...e output state is ON It enters a current value that you obtained by reading an external meter You must first select the minimum calibration level CAL CURR LEV MIN for the value being entered then sele...

Страница 96: ...t the minimum calibration level CAL VOLT LEV MIN for the value being entered You must then select the middle and maximum calibration levels CAL VOLT LEV MID andCAL VOLT LEV MAX for the value being ent...

Страница 97: ...he reading you obtained from the DVM CAL VOLT DATA 11 058 9 Set the power supply to high MAX calibration point CAL VOLT LEV MAX 10 Enter the reading you obtained from the DVM CAL VOLT DATA 21 566 11 S...

Страница 98: ...he remote mode for RS 232 operation All keys on the front panel except the Local key are disabled while in the remote mode SYSTem RWLock Place the power supply in the remote mode for RS 232 operation...

Страница 99: ...he CLS clear status command A reset RST or device clear will not clear bits in event registers Querying an event registerreturnsadecimalvaluewhichcorrespondstothe binary weightedsum of all bits set in...

Страница 100: ...rent 0 1 OR Not Used Not Used Not Used Not Used Not Used Not Used Not Used Overvoltage Not Used Not Used Not Used Not Used Not Used Not Used 9 STATus QUEStionable INSTrument ISUMmary2 Event Registers...

Страница 101: ...d Not Used Not Used Not Used Not Used ISUM Not Used Not Used Not Used 13 OR OPC Not Used QYE DDE EXE CME PON Not Used 5 OR Not Used Not Used Not Used Standard Event Event Register Enable Registers Ope...

Страница 102: ...enable the Questionable Instrument Summary register where n is 1 or 2 Table 4 3 Bit Definitions Questionable Status Register The Questionable Instrument Status Register The Questionable Instrument reg...

Страница 103: ...ply send the command STAT QUES INST ISUM n where n is 1 or 2 To determine the operating mode CV or CC for the power supply send STAT QUES INST ISUM n COND where n is 1 or 2 depending on the output Bit...

Страница 104: ...d one or more errors in the power supply s error queue Read the error queue using the SYST ERR command Bit Decimal Value Definition 0 OPC 1 Operation Complete All commands prior to and including an OP...

Страница 105: ...conditions from the other status registers Query data that is waiting in the power supply s output buffer is immediately reported through the Message Available bit bit 4 ofStatus Byte register Bits i...

Страница 106: ...6 requestservice is set in the Status Byte an IEEE 488 service request interrupt message is automatically sent to the bus controller The bus controller may then poll the instruments on the bus to ide...

Страница 107: ...us Byte summary register Using the Message Available Bit MAV You can use the Status Byte message available bit bit 4 to determine when data is available to read into your bus controller The power supp...

Страница 108: ...0 is set in the Standard Event register 6 Use a serial poll to check to see when bit 5 standard event is set in the Status Byte summary register You could also configure the power supply for an SRQ i...

Страница 109: ...Questionable Status Enable register The selected bits are then reported to the Status Byte STATus QUEStionable ENABle Query the Questionable Status Enable register The power supply returns a binary w...

Страница 110: ...ument ISUMmary n ENABle enable value Set the value of the Questionable Instrument Isummary Enable register for a specific output of the two output power supply The particular output must be specified...

Страница 111: ...are not cleared when power is turned on PSC Query the power on status clear setting The returned parameter is 0 PSC 0 or 1 PSC 1 SRE enable value Enable bits in the Status Byte enable register SRE Que...

Страница 112: ...ased on a hierarchical structure also known as a tree system In this system associated commands are grouped together under a common node or root thus forming subsystems A portion of the SOURce subsyst...

Страница 113: ...ackets indicate that you must specify a value for the enclosed parameter For example the above syntax statement shows the current parameter enclosed in triangle brackets The brackets are not sent with...

Страница 114: ...he following two commands SOUR VOLT MIN SOUR CURR MAX Use a colon and a semicolon to link commands from different subsystems For example in the following command string an error is generated if you do...

Страница 115: ...e clear before sending the second query command SCPI Command Terminators A command string sent to the power supply must terminate with a new line character The IEEE 488 EOI end or identify message is...

Страница 116: ...ters Discrete parameters are used to program settings that have a limited number of values like BUS IMM Query responses will always return the short form in all upper case letters The following comman...

Страница 117: ...ment shows how to send a device clear over the GPIB interface using Agilent BASIC CLEAR 705 IEEE 488 Device Clear The following statement shows how to send a device clear over the GPIB interface using...

Страница 118: ...ty Most of these non documented commands duplicate the functionality of a command already described in this manual SCPI Confirmed Commands The following table lists the SCPI confirmed commands that ar...

Страница 119: ...tage MIN MAX VOLTage LEVel TRIGgered AMPLitude MIN MAX VOLTage PROTection LEVel voltage MIN MAX VOLTage PROTection LEVel MIN MAX VOLTage PROTection STATe 0 1 OFF ON VOLTage PROTection STATe VOLTage PR...

Страница 120: ...follow all of the command syntax rules defined by the standard Non SCPI Commands APPLy voltage DEF MIN MAX current DEF MIN MAX APPLy CALibration COUNt CURRent DATA numeric value CURRent LEVel MIN MID...

Страница 121: ...ote Enable SRQ Service Request Enable Addressed Commands DCL Device Clear EOI End or Identify GET Group Execute Trigger GTL Go To Local LLO Local Lockout SDC Selected Device Clear SPD Serial Poll Disa...

Страница 122: ...5 Error Messages...

Страница 123: ...el The error queue is cleared by the CLS clear status command or when power is cycled The errors are also cleared when you read the queue Note that the RST reset command command does not clear the err...

Страница 124: ...of a colon semicolon or blank space or you may have used a blank space instead of a comma Example TRIG SOUR BUS or APPL 1 0 1 0 104 Data type error The wrong parameter type was found in the command st...

Страница 125: ...Example ESE B01010102 123 Numeric overflow A numeric parameter was found whose exponent was larger than 32 000 124 Too many digits A numeric parameter was found whose mantissa contained more than 255...

Страница 126: ...or double quotes Example DISP TEXT ON 158 String data not allowed A character string was received but is not allowed for the command Check the list of parameters to verify that you have used a valid...

Страница 127: ...er choice Example DISP STAT XYZ XYZ is not a valid choice 330 Self test failed The power supply s complete self test failed from the remote interface TST command In addition to this error more specifi...

Страница 128: ...fer is also full Command execution continues but all data is lost 440 Query UNTERMINATED after indefinite response The IDN command must be the last query command within a command string Example IDN SY...

Страница 129: ...tputs if the track mode is already enabled Tracking mode should be disabled first when coupling the outputs 801 Outputs coupled by trigger subsystem This error occurs when enabling the track mode if t...

Страница 130: ...602 RAM read write failed 603 A D sync stuck 604 A D slope convergence failed 605 Cannot calibrate rundown gain 606 Rundown gain out of range 607 Rundown too noisy 608 Serial configuration readback f...

Страница 131: ...e the same security code to unsecure the power supply as was used to secure it and vice versa The security code may contain up to 11 alphanumeric characters 704 Secure code too long A security code wa...

Страница 132: ...t set overvoltage to OFF before and during the calibration 718 Gain out of range for Gain Error Correction The slope of the DAC gain is out of range Hardware fails 740 Cal checksum failed secure state...

Страница 133: ...Chapter 5 Error Messages Calibration Errors 132...

Страница 134: ...6 Application Programs...

Страница 135: ...a PC running Windows 3 1 Windows 95 or Windows NT 4 0 The examples are written for use over GPIB IEEE 488 or RS 232 But the examples for use over the RS 232 interface do not work with Windows 3 1 The...

Страница 136: ...y These are usually found in the c vxipnp win win95 or winnt lib msc or c vxipnp win win95 or winnt include directory Diode c Diode C This example program steps the power supply through 11 voltages an...

Страница 137: ...Unable to set voltage Measure output current ErrorStatus viPrintf power_supply Measure Current n CheckError Unable to write device delay 500 Allow output to wait for 500 msec Retrieve reading ErrorSta...

Страница 138: ...aultRM defaultRM ErrorStatus viOpen defaultRM VISA_address 0 0 power_supply CheckError Unable to open port if bGPIB SendSCPI System Remote void SendSCPI char pString char pdest strcpy commandString pS...

Страница 139: ...n Programs Example Program for C and C 138 void CheckError char pMessage if ErrorStatus VI_SUCCESS printf n s pMessage ClosePort exit 0 void delay clock_t wait clock_t goal goal wait clock while goal...

Страница 140: ...e response on the worksheet The example on the following pages characterizes a component across the terminals of the power supply This example reads 11 voltages from a worksheet programs the power sup...

Страница 141: ...s 95 NT go to the Insert menu choose Module The Module window appears Then type the text as shown starting on page 141 This module will configure all of the overhead required to communicate with the p...

Страница 142: ...Contents Dim I As Integer bGPIB True To use RS 232 set the bGPIB to False OpenPort SendSCPI RST Set power on condition SendSCPI Output on Turn on the output For I 5 To 15 SendSCPI Volt Str Cells I 1 C...

Страница 143: ...tatus viWrite power_supply ByVal commandString Len commandString _ actual CheckError Can t Write to Device If bGPIB False Then delay 0 5 End If If InStr commandString Then ErrorStatus viRead power_sup...

Страница 144: ...ad Lib VISA DLL Alias 256 ByVal vi As Long ByVal Buffer As String ByVal count As Long retCount As Long As Long Declare Function viWrite Lib VISA DLL Alias 257 ByVal vi As Long ByVal Buffer As String B...

Страница 145: ...Chapter 6 Application Programs Example Program for Excel 97 144...

Страница 146: ...7 Tutorial...

Страница 147: ...ation to help you better understand output characteristics of this power supply as well as an ideal power supply This chapter is divided into the following sections Overview of this Power Supply Opera...

Страница 148: ...Because the variable resistance of Figure 7 1 is actually one or more power transistor operating in the linear class A mode supplies with this type of regulator are often called linear power supplies...

Страница 149: ...ply contains a linear regulated power supply It is controlled by a control circuit that provides voltages to program the outputs The power supply sends back to the control circuits a voltage represent...

Страница 150: ...Power Supply Power Supply The ideal constant current power supply exhibits an infinite output impedance at all frequencies Thus as Figure 7 4 indicates the ideal constant current power supply would a...

Страница 151: ...nt 1 has a relatively high resistance value compared to RC the output voltage is at the voltage setting and the output current is less than the current setting In this case the power supply is in the...

Страница 152: ...e Normal mode voltage noise is in the form of ripple related to the line frequency plus some random noise Both of these are of very low value in the power supply Careful lead layout and keeping the po...

Страница 153: ...y output will cause a spike to appear at the load The spike is a function of the rate of change of the load current When very rapid changes in load are expected a capacitor with a low series resistanc...

Страница 154: ...nals so that if operated in series with other power supplies damage will not occur if the load is short circuited or if one power supply is turned on separately from its series partners When series co...

Страница 155: ...put is programmed the power supply regulator circuit senses that the output is less than desired and turns on the series regulator to its maximum value IL the current limit or constant current setting...

Страница 156: ...nce the control circuit can in no way cause the series regulator transistors to conduct backwards the output capacitor can only be discharged through the load resistor and internal current source IS T...

Страница 157: ...Chapter 7 Tutorial Remote Programming 156...

Страница 158: ...8 Specifications...

Страница 159: ...ons are warranted in the temperature range of 0 to 40 C with a resistive load Supplemental characteristics which are not warranted but are descriptions of performance determined either by design or te...

Страница 160: ...ffset Voltage 0 05 5 mV 0 1 25mV for output 2 Current 0 15 5 mA 0 15 10mA for output 2 Ripple and Noise with outputs ungrounded or with either output terminal grounded 20 Hz to 20 MHz Normal mode volt...

Страница 161: ...sa Settling Time Less than 90 msec for the output voltage to change from 1 to 99 or vice versa following the receipt of VOLTage or APPLy command via direct GPIB or RS 232 interface OVP Accuracy of out...

Страница 162: ...bility of output offset Following 30 minutes warm up change in output over 8 hours under constant load line and ambient temperature Voltage 0 02 2 mV Current 0 1 1 mA Output Voltage Overshoot During t...

Страница 163: ...and the sense terminals and between the output and the sense terminals 240 Vdc when connecting insulated shorting conductors between the output and the sense terminals and between the output and the...

Страница 164: ...Designed to operate at a maximum relative humidity of 95 and at altitudes of up to 2000 meters Weight Dimensions 212 8 mmW x 146 3 mmH x 348 3 mmD See below and the next page for more detailed inform...

Страница 165: ...Chapter 8 Specifications Supplemental Characteristics 164 Figure 8 2 Dimensions for Rack mounting...

Страница 166: ...Appendix Service Information...

Страница 167: ...70 Surface Mount Repair on page 170 To Replace the Power Line Fuse on page 170 Troubleshooting Hints on page 171 Self Test Procedures starting on page 172 General Disassembly on page 174 Verification...

Страница 168: ...y Verify that the front panel power switch has been pushed Verify that the power line fuse is installed and not open See page 20 Verify the power line voltage setting See If the Power Supply Does Not...

Страница 169: ...our failed power supply If you do not return your failed power supply within 45 days your credit card will be billed for a new power supply If you choose not to supply a credit card number you will be...

Страница 170: ...ir be sure to Attach a tag to the power supply identifying the owner and indicating the required service or repair Include the instrument model number and full serial number Place the power supply in...

Страница 171: ...ling Keep replacement parts in original static free packaging Remove all plastic styrofoam vinyl paper and other static generating materials from the immediate work area Use only anti static solder su...

Страница 172: ...that all terminal connections are removed while the self test is performed Failure of the DAC U20 on the PC board will cause many self test failures Bias Supplies Problems Check that the input to the...

Страница 173: ...or this test to pass If this error is detected during power on self test the power supply will beep twice This error is only readable from the remote interface 602 RAM read write failed This test writ...

Страница 174: ...respond This test checks that communications can be established between U17 and U7 throughthe optically isolated U9 and U10 serial data link Failure to establish communication in either direction wil...

Страница 175: ...Appendix Service Information General Disassembly 174 General Disassembly...

Страница 176: ...Agilent 54602B Display transient response and ripple noise waveform RMS Voltmeter 20 Hz to 20 MHz Measure rms ripple noise Cable BNC to BNC 50 ohm 9 inch 23 Cm Agilent10502Aor10503Aif the 10502A is n...

Страница 177: ...es may be present at the outputs of the power supply Operation Verification and Performance Tests Operation Verification Tests To assure that the power supply is operating properly without testing all...

Страница 178: ...Figure A 1 Performance Verification Test Setup Current Monitoring Resistor To eliminate output current measurement error caused by the voltage drops in the leads and connections connect the current m...

Страница 179: ...r requires that switches should be used to connect disconnect and short the load resistor An electronic load if available can be used in place of a variable load resistor and switches The electronic l...

Страница 180: ...ace for this test to avoid round off errors 1 Turn off the power supply and connect a digital voltmeter between the and terminals of the output to be tested as shown in Figure A 1 2 Turn on the power...

Страница 181: ...put2 11 Repeat steps 1 through 10 for the other output CV Load Effect Load Regulation This test measures the change in the output voltage resulting from a change in the output current from full to no...

Страница 182: ...age range 20V 1 5A enable the output and set the display to the limit mode When the display is in the limit mode program the current to the full scale rated value 1 5 A and the voltage to full scale r...

Страница 183: ...onitordevice to the power supply To reduce the measurement error caused by common mode noise it is recommended to twist the connection wire between the BNC receptacle and the output terminals The load...

Страница 184: ...he current to the full scale rated value 1 5 A and the voltage to the full rated value 20 0 V 3 Check that the front panel CV annunciator remains lit If not lit adjust the load down slightly 4 Note th...

Страница 185: ...o the limit mode When the display is in the limit mode program the current to the full scale rated value 1 5 A and the voltage to the full scale rated value 20 0 V 3 Set the electronic load to transie...

Страница 186: ...rrors 1 Turn off the power supply and connect a 0 01 9 current monitoring resistor RM1 across the output to be tested and a digital voltmeter across the current monitoring resistor RM1 as shown in Fig...

Страница 187: ...e other output CC Load Effect Load Regulation This test measures the change in output current resulting from a change in the load from full rated output voltage to short circuit 1 Turn off the power s...

Страница 188: ...um value 10 below the nominal input voltage to the maximum value 10 above nominal voltage 1 Turn off the power supply and connect the output to be tested as shown in Figure A 1 with the digital voltme...

Страница 189: ...pple and Noise Periodic and random deviations PARD in the output ripple and noise combine to produce a residual ac current as well as an ac voltage superimposed on the dc output CC PARDisspecifiedasth...

Страница 190: ...e output or output lines and chassis ground Common mode noise can be a problem for very sensitive circuitry that is referenced to earth ground When a circuit is referenced to earth ground a low level...

Страница 191: ...e DVM reading E3646A 48A Output1 20 0200 V 19 9800 V Output2 20 0450 V 19 9550 V E3647A 49A Output1 60 0400 V 59 9600 V Output2 60 0850 V 59 9150 V CV Readback Accuracy Full Scale E3646A 48A Output1 D...

Страница 192: ...adback Accuracy Full Scale E3646A Output1 IO 0 0095 A IO 0 0095 A Output2 IO 0 0145 A IO 0 0145 A E3647A Output1 IO 0 0062 A IO 0 0062 A Output2 IO 0 0112 A IO 0 0112 A E3648A Output1 IO 0 0125 A IO 0...

Страница 193: ...s the best long term stability To Unsecure the Power Supply Without the Security Code To unsecure the power supply without the correct security code when you forget the security code follow the steps...

Страница 194: ...nectanappropriate currentmonitoring resistor0 019acrosstheoutput terminals and connect a DVM across the terminals of the monitoring resistor You can abort a calibration at any time by turning the powe...

Страница 195: ...ion value for each calibration point may be prompted to be adjusted for your specific model 1 Turn on the calibration mode Turn on the calibration mode by holding down Calibrate key as you turn on the...

Страница 196: ...e reading you obtained from the DVM by using the knob and resolution selection keys 7 Save the changes and select the high voltage calibration point 8 Enter the reading you obtained from the DVM by us...

Страница 197: ...selection keys Notice that you should wait for the DVM reading to be stabilized for accurate calibration during the current calibration 13 Save the changes and select the middle current calibration po...

Страница 198: ...output1 and go to the calibration mode for the output2 If the calibration fails an error message will be displayed for one second and you will hear a beep and then go back to the current calibration...

Страница 199: ...solution selection keys Press Calibrate key to save the changes and select the OVP calibration V High voltage calibration 7 OVP1 CAL is displayed Press Calibrate key to run the overvoltage calibration...

Страница 200: ...long 705 Cal aborted 706 Cal value out of range 708 Cal output disabled 712 Bad DAC cal data 713 Bad readback cal data 714 Bad OVP cal data 717 Cal OVP status enabled 718 Gain out of range for gain er...

Страница 201: ...or Agilent Service Center 2 Identify parts by the Agilent part number shown in the replaceable parts lists Note thatnotallpartsare directly availablefromAgilent youmay haveto order certain parts from...

Страница 202: ...542 E3631 40010 E3631 40011 1 BUMPER REAR 01542 E3631 40011 E3631 40014 1 REAR BEZEL 01542 E3631 40014 E3640 40002 1 PUSH ROD 01542 E3640 40002 E3640 40003 1 KNOB 01542 E3640 40003 E3633 60006 1 DC FA...

Страница 203: ...able Parts 202 Manufacturer s List Mfr code Manufacturer s name Manufacturer s Address 01542 Agilent DIV 01 SAN JOSE COMPONENTS SAN JOSE CA USA 02805 COOPER INDUSTRIES INC HOUSTON TX USA 22631 I SHENG...

Страница 204: ...STrument COUPle TRIG ger 84 INSTrument NSELect 83 INSTrument NSELect 83 INSTrument SELect 82 INSTrument SELect 82 MEASure CURRent 84 87 MEASure VOLTage 84 OUTPut TRACk STATe 84 OUTPut TRACk STATe 84 V...

Страница 205: ...ration overview 39 front panel resolution 159 fuse ratings 20 G GPIB connector 60 H halting an output 116 hierarchical structure 111 HP IB interface configuration 60 I ideal constant current power sup...

Страница 206: ...27 SCPI command terminators 114 confirmed commands 117 118 conformance information 117 device specific 119 language introduction 111 non SCPI commands 119 status registers 98 version 59 117 version qu...

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Страница 219: ...prod uct and specifically dis claims any implied warranty or condition of merchantability fitness for a particular purpose or satisfactory quality For transactions in Austra lia and New Zealand The w...

Страница 220: ...l options of the above product s Complies with the essential requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC including 93 68 EEC and carries the CE Marking accordi...

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