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Chapter 2 General Information

Safety Considerations

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2

Safety Considerations

This power supply is a Safety Class I instrument, which means that it has a
protective earth terminal. That terminal must be connected to earth ground
through a power source with a 3-wire ground receptacle.

Before installation or operation, check the power supply and review this
manual for safety markings and instructions. Safety information for specific
procedures is located at the appropriate places in this manual. See also
‘‘

Safety

’’ at the beginning of this manual for general safety information.

Safety and EMC Requirements

This power supply is designed to comply with the following safety and EMC
(Electromagnetic Compatibility) requirements:

• IEC 1010-1(1990)/EN 61010-1(1993) + A2 (1995): Safety Requirements for

Electrical Equipment for Measurement, Control, and Laboratory Use

• CSA C22.2 No.1010.1-92: Safety Requirements for Electrical Equipment for

Measurement, Control, and Laboratory Use

• EN61326-1(1997):

EN 61000-4-2(1995): Electrostatic Discharge Requirements
EN 61000-4-3(1996): Radiated Electromagnetic Field Requirements
EN 61000-4-4(1995): Electrical Fast Transient/Burst Requirements
EN61000-4-5(1995): Surge Requirements
EN61000-4-6(1996): Conducted Radio Frequency Immunity Requirements
EN61000-4-8(1993): Magnetic Field Requirements
EN61000-4-11(1994): Voltage dips, short, interruption and var Requirement
EN 55011(1991) Group 1, Class A/CISPR 11(1990): Limits and Methods of

Radio Interference Characteristics of Industrial, Scientific, and Medical
(ISM) Radio - Frequency Equipment

• Low Voltage Directive 73/23/EEC

• EMC Directive 89/336/EEC

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Содержание E364 A Series

Страница 1: ...E3640 90001 January 2000 For Safety information Warranties and Regulatory information see the pages behind the Index Copyright Agilent Technologies 1999 2000 All Rights Reserved Agilent E364xA Single...

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

Страница 3: ...selection Key 3 Overvoltage protection Key 4 Display limit Key 5 Voltage Current adjust selection Key 6 Stored state Recall Reset Menu 7 State storage menu Local Key 8 View menu Calibrate Key 9 I O Co...

Страница 4: ...front panel by selecting the RESET from this menu 7 State storage menu Local key1 Stores up to five power supply s states in non volatile memory and assigns a name to each of the storage locations or...

Страница 5: ...ntrol 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 turning the con...

Страница 6: ...supply to shutdown when the annunciator blinks CAL The power supply is in calibration mode Limit The display shows the limit values of voltage and current ERROR Hardware or remote interface command er...

Страница 7: ...nel key to Select the GPIB or RS 232 interface see chapter 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 l...

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: ...n 33 Cooling and Location 33 Output Connections 34 Current Ratings 34 Voltage Drops 35 Load Consideration 35 Remote Voltage Sensing Connections 36 Multiple Loads 38 Chapter 3 Front Panel Operation and...

Страница 11: ...Message 66 Chapter 4 Remote Interface Reference SCPI Command Summary 69 Simplified Programming Overview 74 Using the APPLy Command 74 Using the Low Level Commands 74 Reading a Query Response 75 Selec...

Страница 12: ...ings 106 SCPI Command Terminators 106 IEEE 488 2 Common Commands 106 SCPI Parameter Types 107 Halting an Output in Progress 108 SCPI Conformance Information 109 IEEE 488 Conformance Information 112 Ch...

Страница 13: ...l Disassembly 164 Recommended Test Equipment 165 Test Considerations 166 Operation Verification and Performance Tests 166 Measurement Techniques 167 Setup for Most Tests 167 Current Monitoring Resisto...

Страница 14: ...ibration Interval 181 To Unsecure the Power Supply Without the Security Code 181 General Calibration Adjustment Procedure 182 Front Panel Voltage and Current Calibration 183 Calibration Record for You...

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: ...and the OVP annunciator and low voltage range indication annunciator turn on for example 8V annunciator turns on for the E3640A model and the knob is selected for voltage control 2 Enable the outputs...

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: ...ting 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 it s not correct The settings are 100 115 or 230 Vac 3...

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 164 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: ...Adjust the Carrying Handle 23 1 To Adjust the Carrying Handle To adjust the position grasp the handle by the sides and pull outward Then rotate the handle to the desired position Bench top viewing pos...

Страница 25: ...ach rack mounting kit Any Agilent Technologies System II instrument of the same size can be rack mounted beside the Agilent E3640A E3641A E3642A E3643A E3644A or E3645A Note Remove the carrying handle...

Страница 26: ...o rack mount two instruments side by side order lock link kit 5061 9694 and flange kit 5063 9212 Be sure to use the support rails inside the rack cabinet To install one or two instruments in a sliding...

Страница 27: ...Chapter 1 Quick Start To Rack Mount the Instrument 26...

Страница 28: ...2 General Information...

Страница 29: ...power supply 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 six mode...

Страница 30: ...tibility requirements IEC 1010 1 1990 EN 61010 1 1993 A2 1995 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use CSA C22 2 No 1010 1 92 Safety Requirements for Ele...

Страница 31: ...tra manual same language as the selected language manual when you order the power supply Accessories The accessories listed below may be ordered from your local Agilent Tecnologies Sales Office either...

Страница 32: ...voltage protection OVP Five storage locations 1 to 5 for user defined operating states Automatic turn on self test Remote sense at rear panel terminals User calibration from the front panel or over th...

Страница 33: ...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 34: ...fy that 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 accorda...

Страница 35: ...ote For the E3644A 45A models when making load connections from the rear output terminals four load wires should be used to keep good CV load regulation if carrying full rated current of the power sup...

Страница 36: ...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 37: ...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 38: ...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 39: ...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 40: ...3 Front Panel Operation and Features...

Страница 41: ...view on page 41 Constant Voltage Operation starting on page 42 Constant Current Operation starting on page 44 Configuring the Remote Interface starting on page 46 Storing and Recalling Operating State...

Страница 42: ...it 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 the meter mode the Limit annunciator turns of...

Страница 43: ...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 values of the power supply 4 Adjust...

Страница 44: ...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 45: ...e 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 values of the selected supply 4 Ad...

Страница 46: ...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 47: ...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 48: ...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 49: ...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 50: ...ng power off on or without using RST command over the remote interface See page 87 for more details on RST command 3 Recall the stored operating state Remote interface operation Use the following comm...

Страница 51: ...ip level how to check OVP operation and how to clear overvoltage condition Front panel operation Setting the OVP Level and Enable the OVP Circuit 1 Turn on the power supply 2 Enter the OVP menu and se...

Страница 52: ...evel or by adjusting OVP trip level The following steps show you how to clear the overvoltage condition and get back to normal mode operation In the following steps the display will go back to OVP TRI...

Страница 53: ...tion and exit this menu The OVP annunciator will not flash any more The output will return to the meter mode Remote interface operation VOLT PROT voltage MIN MAX Set the OVP level VOLT PROT STAT OFF O...

Страница 54: ...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 55: ...ashing 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 Disconnect...

Страница 56: ...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 57: ...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 58: ...evision numbers Remote interface operation IDN The above command returns a string in the form Agilent Technologies E3640A 0 X X Y Y Z Z E3640A Be sure to dimension a string variable with at least 40 c...

Страница 59: ...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 60: ...age 92 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 46 for more...

Страница 61: ...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 62: ...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 63: ...on 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 underscore character _ A letter A...

Страница 64: ...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 65: ...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 66: ...cure the power supply using the old security code Then enter the new code as shown below CAL SEC STAT OFF 003640 Unsecure with old code CAL SEC CODE ZZ001443 Enter new code CAL SEC STAT ON ZZ001443 Se...

Страница 67: ...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 68: ...4 Remote Interface Reference...

Страница 69: ...ds starting on page 89 Interface Configuration Commands on page 92 The SCPI Status Registers starting on page 93 Status Reporting Commands starting on page 101 An Introduction to the SCPI Language sta...

Страница 70: ...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 71: ...UP DOWN VOLTage LEVel IMMediate AMPLitude MIN MAX VOLTage LEVel IMMediate STEP INCRement numeric value DEFault VOLTage LEVel IMMediate STEP INCRement DEFault VOLTage LEVel TRIGgered AMPLitude voltage...

Страница 72: ...WINDow STATe OFF ON STATe TEXT DATA quoted string TEXT DATA TEXT CLEar SYSTem BEEPer IMMediate ERRor VERSion COMMunicate GPIB RDEVice ADDRess numeric value COMMunicate GPIB RDEVice ADDRess OUTPut REL...

Страница 73: ...e SECure STATe STRing quoted string STRing VOLTage DATA numeric value VOLTage LEVel MIN MID MAX VOLTage PROTection STATus QUEStionable CONDition EVENt ENABle enable value ENABle SYSTem ERRor CLS ESE e...

Страница 74: ...Te NAME 1 2 3 4 5 quoted name NAME 1 2 3 4 5 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 Interface Configuration Commands...

Страница 75: ...etails 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 exam...

Страница 76: ...r 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...

Страница 77: ...MAX Value 8 24 V 20 60 V 8 24 V 20 60 V 8 24 V 20 60 V MIN Value 0 V 0 V 0 V DEFault Value 0 V 0 V 0 V RST Value 0 V 0 V 0 V Current Programming Range 0 A to 3 09 A 0 A to 1 545 A 0 A to 5 15 A 0 A to...

Страница 78: ...in 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 specific valu...

Страница 79: ...vel 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 execution error 222 Data...

Страница 80: ...URR 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 STEP 0 02 Set the step size t...

Страница 81: ...g program segments show how to use the VOLT UP or VOLT DOWN command to increase or decrease the output voltage with the VOLT STEP command VOLT STEP 0 01 Set the step size to 0 01 V VOLT UP Increase th...

Страница 82: ...level remains unchanged to the value presently programmed Before sending this command lower the output voltage below the trip OVP point or raise the OVP trip level above the output setting Note that...

Страница 83: ...s 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 Source...

Страница 84: ...RIG 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 85: ...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 accepta...

Страница 86: ...g character and are not considered individual characters DISPlay TEXT Query the message sent to the front panel and returns a quoted string DISPlay TEXT CLEar Clear the message displayed on the front...

Страница 87: ...query the bus address of the peripheral device Changing the address with this does not affect the address of the peripheral device It does affect the address to which data is sent by the instrument ID...

Страница 88: ...E3640A state E3641A state E3642A state E3643A state E3644A state E3645A state CURR 3 A 0 8 A 5 A 1 4 A 8 A 2 2 A CURR STEP 0 052 mA 0 015 mA 0 095 mA 0 026 mA 0 152 mA 0 042 mA CURR TRIG 3 A 0 8 A 5...

Страница 89: ...ate 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 lo...

Страница 90: ...he 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 sel...

Страница 91: ...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 ente...

Страница 92: ...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 Set the powe...

Страница 93: ...e 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 T...

Страница 94: ...bit is set subsequent state changes are ignored Bits in an event register are automatically cleared by a query of that register such as ESR or STAT QUES EVEN or by sending the CLS clear status command...

Страница 95: ...Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used 9 OR OPC Not Used QYE DDE EXE CME PON Not Used 5 OR Current Voltage Overvoltage Standard Event Event Register Enable Registers Oper...

Страница 96: ...he overvoltage protection circuit has tripped To read the register send STATus QUEStionable Table 4 3 Bit Definitions Questionable Status Register The Questionable Status Event register is cleared whe...

Страница 97: ...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 OPC...

Страница 98: ...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 99: ...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 ident...

Страница 100: ...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 101: ...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 in...

Страница 102: ...all bits in the register These bits are not latched If 0 is returned the power supply is in output off or unregulated state If 1 is returned the power supply is in the CC operating mode and if 2 is re...

Страница 103: ...hen PSC 0 is in effect the Status Byte and Standard Event register enable masks are not cleared when power is turned on PSC Query the power on status clear setting The returned parameter is 0 PSC 0 or...

Страница 104: ...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 105: ...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 106: ...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 107: ...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 108: ...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 109: ...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 110: ...this manual SCPI Confirmed Commands The following table lists the SCPI confirmed commands that are used by the power supply DISPlay WINDow STATe OFF ON WINDow STATe WINDow TEXT DATA quoted string WIND...

Страница 111: ...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 PROTection TRIPped VOLT...

Страница 112: ...h the SCPI standard in mind and they 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...

Страница 113: ...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 114: ...5 Error Messages...

Страница 115: ...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 116: ...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 117: ...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 118: ...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 119: ...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 120: ...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 121: ...nel does not respond 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 conf...

Страница 122: ...se 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 w...

Страница 123: ...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 124: ...6 Application Programs...

Страница 125: ...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 126: ...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 127: ...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 128: ...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 129: ...n Programs Example Program for C and C 128 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 130: ...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 131: ...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 132: ...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 133: ...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 134: ...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 135: ...Chapter 6 Application Programs Example Program for Excel 97 134...

Страница 136: ...7 Tutorial...

Страница 137: ...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 138: ...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 139: ...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 140: ...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 141: ...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 142: ...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 143: ...tput 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 resistance in...

Страница 144: ...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 145: ...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 146: ...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 147: ...Chapter 7 Tutorial Remote Programming 146...

Страница 148: ...8 Specifications...

Страница 149: ...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 150: ...f output offset Voltage 0 05 10 mV Current 0 2 10 mA Readback Accuracy 1 12 months over GPIB and RS 232 or front panel with respecttoactualoutput 25 C 5 C of output offset Voltage 0 05 5 mV Current 0...

Страница 151: ...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 152: ...hours under constant load line and ambient temperature Voltage 0 02 2 mV Current 0 1 1 mA Output Voltage Overshoot During turn on or turn off of ac power output plus overshoot will not exceed 1 V if...

Страница 153: ...en the output 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 ou...

Страница 154: ...ment Designed to operate at a maximum relative humidity of 95 and at altitudes of up to 2000 meters Weight Dimensions 212 8 mmW x 88 3 mmH x 348 3 mmD See below and the next page for more detailed inf...

Страница 155: ...Chapter 8 Specifications Supplemental Characteristics 154 Figure 8 2 Dimensions for Rack mounting...

Страница 156: ...Appendix Service Information...

Страница 157: ...60 Surface Mount Repair on page 160 To Replace the Power Line Fuse on page 160 Troubleshooting Hints on page 161 Self Test Procedures starting on page 162 General Disassembly on page 164 Verification...

Страница 158: ...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 159: ...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 160: ...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 161: ...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 162: ...hat all terminal connections are removed while the self test is performed Failure of the DAC U131 on the PC board will cause many self test failures Bias Supplies Problems Check that the input to the...

Страница 163: ...r 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 write...

Страница 164: ...espond This test checks that communications can be established between U121 and U103 through the optically isolated U108 and U109 serial data link Failure to establish communication in either directio...

Страница 165: ...Appendix Service Information General Disassembly 164 General Disassembly...

Страница 166: ...2B 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 Agilent 10502A or 10503A if the 10502A is not availa...

Страница 167: ...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 168: ...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 169: ...stor 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 electroni...

Страница 170: ...over the remote interface 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...

Страница 171: ...r supply and connect a digital voltmeter between the and terminals of the output as shown in Figure A 1 2 Turn on the power supply Select the high voltage range 20V 1 5A enable the output and set the...

Страница 172: ...ut reading on the digital voltmeter 6 Adjust the transformer to high line voltage 127 Vac for nominal 115 Vac 110 Vac for nominal 100 Vac or 253 Vac for nominal 230 Vac Record the voltage reading on t...

Страница 173: ...wn slightly 4 Note that the waveform on the oscilloscope does not exceed the peak to peak limit of 5 mV or 8 mV 5 Disc onnect the oscilloscope and connect the ac rms voltmeter in its place according t...

Страница 174: ...nd 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 the full scale rated value 20 0 V 3 Set the electr...

Страница 175: ...void round off errors 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...

Страница 176: ...connect the output to tested as shown in Figure A 1 with the digital voltmeter connected across the 0 01 9 current monitoring resistor RM1 2 Turn on the power supply Select the low voltage range 8V 3A...

Страница 177: ...rated value 8 0 V and the current to the full scale rated value 3 A 4 Operate the electronic load in constant voltage mode and set its voltage to 8 0 V Check that the CC annunciator remains lit If no...

Страница 178: ...r supply Select the low voltage range 8V 3A enable the output and set the display to the limit mode When the display is in the limit mode program the current to full scale rated value 3 A and the volt...

Страница 179: ...ual to the output current flow multiplied by the impedance 1 Turn off the power supply and connect a 100 k9 resistor RS and a 2200 pF capacitor in parallel between the terminal and chassis ground at t...

Страница 180: ...0050 V CV Programming Accuracy Full Scale DVM reading E3640A 42A 44A 20 0200 V 19 9800 V E3641A 43A 45A 60 0400 V 59 9600 V CV Readback Accuracy Full Scale E3640A 42A 44A DVM 0 0150 V DVM 0 0150 V E36...

Страница 181: ...cy FullScale E3640A IO 0 0095 A IO 0 0095 A E3641A IO 0 0062 A IO 0 0062 A E3642A IO 0 0125 A IO 0 0125 A E3643A IO 0 0071 A IO 0 0071 A E3644A IO 0 0170 A IO 0 0170 A E3645A IO 0 0083 A IO 0 0083 A C...

Страница 182: ...ustment provides 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 fo...

Страница 183: ...connect all loads from the power supply connectanappropriate currentmonitoring resistor0 019acrosstheoutput terminals and connect a DVM across the terminals of the monitoring resistor You can abort a...

Страница 184: ...calibration 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 tu...

Страница 185: ...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 using the kn...

Страница 186: ...back to the OVP calibration mode again Current Calibration 11 Select the low end current calibration point 12 Enter the computed value DVM reading by shunt resistance by using the knob and resolution...

Страница 187: ...uted value DVM reading by shunt resistance by using the knob and resolution selection keys 15 Save the change and select the high current calibration point 16 Enter the computed value DVM reading by s...

Страница 188: ...r the DVM reading by using the knob and resolution selection keys Press Calibrate key to save the changes and select the OVP calibration V High voltage calibration 7 OVP CAL is displayed Press Calibra...

Страница 189: ...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 190: ...Agilent do the following 1 Contact your nearest Agilent Sales Office or Agilent Service Center 2 Identify parts by the Agilent part number shown in the replaceable parts lists Note thatnotallpartsare...

Страница 191: ...68 1 FUSE 2A 50 T 250V FOR 230 Vac 02805 50T020H 34401 45011 1 HANDLE FRONT 02362 34401 45011 34401 86011 1 BUMPER FRONT 02362 34401 86011 34401 86012 1 BUMPER REAR 02362 34401 86012 34401 88304 1 REA...

Страница 192: ...anufacturer 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 02362 Agilent DIV 09 LID COMP...

Страница 193: ...Appendix Service Information Replaceable Parts 192...

Страница 194: ...ure CURRent 81 MEASure VOLTage 81 VOLTage 79 VOLTage PROTection 80 VOLTage PROTection CLEar 81 VOLTage PROTection STATe 81 VOLTage PROTection STATe 81 VOLTage PROTec tion TRIPped 81 VOLTage PROTection...

Страница 195: ...null modem adapters 60 RS 232 cable 30 wiring adapter 60 K key descriptions front panel 3 keyword s lower level 103 root 103 second level 103 third level 103 knob locking 54 L limit mode 41 42 line r...

Страница 196: ...rete 107 Numeric 107 String 107 scrolling speed error text 114 self test complete 17 56 power on 56 to perform 56 semicolon 105 series element 137 series operation connection 143 series regulated supp...

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Страница 206: ...is 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...

Страница 207: ...5 IEC 61000 4 2 1995 Criteria A EN 61000 4 3 1996 IEC 61000 4 3 1995 Criteria A ENV 50204 1995 EN 61000 4 4 1995 IEC 61000 4 4 1995 Criteria A EN 61000 4 5 1995 IEC 61000 4 5 1995 Criteria A EN 61000...

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