142 | Agilent Technologies E3632A specs

Chapter 7 Tutorial

Overview of Agilent E3632A Operation

In terms of performance, a linear regulated supply has a very precise regulating properties and responds quickly to variations of the line and load. Hence, its line and load regulation and transient recovery time are superior to supplies using other regulation techniques. The power supply also exhibits low ripple and noise, is tolerant of ambient temperature changes, and with its circuit simplicity, has a high reliability.

The Agilent E3632A 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 representing the output at the terminals. The control circuits receive information from the front panel and send information to the display. Similarly the control circuits ‘’talk’’ to the remote interface for input and output with the GPIB and RS-232 interfaces. The remote interface is at earth ground and optically isolated from the control circuit and the power supply.

Figure 7-2. Block Diagram of the Power Supply Showing the Optical Isolation

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Agilent Technologies E3632A manual 142

Contents

‹&RS\ULJKW$JLOHQW7HFKQRORJLHV,QF $OO5LJKWV5HVHUYHG 3DUW1XPEHU $SULO Flexible system features Convenient bench-top features Front Panel at a Glance Page T e Front-Panel Voltage and Current Limit Settings OVP Display Annunciators Key to Rear Panel at a Glance This Book Page Contents Contents Remote Interface Reference Error Messages General Information Safety and EMC Requirements Safety Considerations Options Options and AccessoriesAccessories General Information Options and Accessories General Information Description Description R n i n g General Information Description R n i n g Cooling and Location InstallationInitial Inspection General Information Installation Rack Mounting Page General Information Input Power Requirements Input Power RequirementsPower-Line Cord Power-Line Voltage Selection Panel Power-line module General Information Input Power Requirements Initial Operation Initial Operation Preliminary Checkout Verify the power-line voltage setting on the rear panelVerify that the correct power-line fuse is installed Connect the power-line cord and turn on your power supply Addr 05 or RS-232 Initial Operation Power-On CheckoutEnable the outputs Initial Operation Output Checkout Output CheckoutVoltage Output Checkout Current Output Checkout Turn on the power supplyAdjust the voltage limit value to 1.0 volt T e Initial Operation Output Checkout Front-Panel Operation Front-Panel Operation Front-Panel Operation Front-Panel Operation Overview Front-Panel Operation Overview Front-Panel Operation Constant Voltage Operation Set the display to the limit modeAdjust the knob for the desired current limit Constant Voltage Operation OUTPut on Return to the meter modeCURRent currentMINMAX VOLTage voltageMINMAX Front-Panel Operation Constant Current Operation Adjust the knob for the desired voltage limitConstant Current Operation Verify that the power supply is in the constant current mode Store the operating state in memory location Set up the power supply for the desired operating stateTurn on the storage mode Storing and Recalling Operating States RCL SAV Level 32.0 Setting the OVP Level and Enable the OVP CircuitProgramming Overvoltage Protection Clearing the Overvoltage Condition Readjust the OVP trip level or the output voltage levelMove to the clear mode Ovp on Checking OVP Operation Voltprotcle Clear the overvoltage condition and exit this menuVoltprot voltageMINMAX Voltprotstat Offon Front-Panel Operation Programming Overcurrent Protection Setting the OCP Level and Enable the OCP CircuitEnable the OCP circuit Programming Overcurrent Protection Clearing the Overcurrent Condition Readjust the OCP trip level or the output current levelMove to the clear mode Ocp on Checking OCP Operation Currprotcle Clear the overcurrent condition and exit this menuCurrprot currentMINMAX Currprotstat Offon Output Noise Remote Voltage SensingCV Regulation Output Rating Remote Voltage Sensing Connections Stability Outp Offon Disabling the OutputFront-Panel Operation Disabling the Output Knob Locking Disabling the Output Using an External Relay TST? System-Related OperationsSelf-Test Front-Panel Operation System-Related Operations 113, Undefined header Error ConditionsERR SYSTERR? Disptext ‘HELLO’ Display ControlDisp Offon Disptextcle SYSTVERS? Firmware Revision QueryScpi Language Version IDN? Returns HEWLETT-PACKARD,E3632A,0,X.X-X.X-X.X Remote Interface Selection Remote Interface ConfigurationFront-Panel Operation Remote Interface Configuration Parity Selection RS-232 Gpib AddressBaud Rate Selection RS-232 Gpib To Set the Gpib Address Choose the RS-232 interface To Set the Baud Rate and Parity RS-232RS-232 Baud For one second T e Front-Panel Operation Gpib Interface Configuration Gpib Interface Configuration RS-232 Data Frame Format RS-232 Interface ConfigurationRS-232 Configuration Overview Front-Panel Operation RS-232 Interface Configuration Connection to a Computer or Terminal DTR / DSR Handshake Protocol RS-232 Troubleshooting Front-Panel Operation Calibration Overview Calibration OverviewCalibration Security Calsecstat OFF, HP003632 Code Calsecstat ON, HP003632 ON, ZZ00143 CalseccodeZZ001443 Calsecstat Calstr ‘CAL 05-1-97’ Calibration CountCalibration Message Remote Interface Reference Scpi Remote Interface Reference Scpi Command Summary Scpi Command Summary VOLTageDC? System-Related Commands Status Reporting Commands IEEE-488.2 Common Commands ‘‘VOLT Using the APPLy CommandUsing the Low-Level Commands Simplified Programming Overview ‘‘TRIGSOUR IMM’’ Reading a Query ResponseSelecting a Trigger Source ‘‘SYSTERR?’’ 3RZHU6XSSO\3URJUDPPLQJ5DQJHV APPLy? Using the APPLy CommandRemote Interface Reference Using the APPLy Command APPLy voltage DEF MIN MAX,current DEF MIN MAX Curr Down Output Setting and Operation CommandsCurr UP CURRentTRIGgered? MINimum MAXimum CURRentSTEP numeric valueDEFaultCURRentSTEP? DEFault CURRentTRIGgered current MINimum MAXimum CURRentPROTectionTRIPped? CURRentPROTection? MINimumMAXimumCURRentPROTectionSTATe 01OFFON CURRentPROTectionSTATe? Volt Down Volt UP VOLTagePROTection voltageMINimumMAXimum VOLTageSTEP? DEFaultVOLTageTRIGgered voltage MINimum MAXimum VOLTageTRIGgered? MINimum MAXimum VOLTagePROTectionCLEar VOLTagePROTectionSTATe 01OFFONVOLTagePROTectionSTATe? VOLTagePROTectionTRIPped? MEASureVOLTage? Bus Software Triggering Triggering CommandsRemote Interface Reference Triggering Commands Trigger Source Choices Trigsour IMM Trigger 705 group execute triggerTrigsour BUS*TRG*WAI*TRG*WAI Immediate Triggering TRG Triggering Commands System-Related Commands SYSTemBEEPer SYSTemERRor?OUTPutRELay? Currtrig Currprot Currprotstat Disp Outp IDN?HEWLETT-PACKARD,E3632A,0,X.X-X.X-X.X RST Curr Currstep RCL 1 2 SAV 1 2 Calibration Commands CALibrationSTRing quoted string CALibrationSECureCODE new codeCALibrationSECureSTATe OFF ON,code CALibrationSECureSTATe? CALibrationVOLTagePROTection RS-232 Interface Commands Remote Interface Reference Scpi Status Registers What is an Event Register?What is an Enable Register? Scpi Status Registers 101 Scpi Status System 102 Questionable Status Enable register is cleared whenQuestionable Status Register Questionable Status Event register is cleared when 103 Standard Event Register 104 Standard Event Enable register is cleared whenStatus Byte Register Diihfwlqvwuxphqwwkurxjksxw ‡ RXHHFXWHWKH*CLSFOHDUVWDWXVFRPPDQG‡ RXHHFXWHWKH*SRE 0FRPPDQG To Interrupt Your Bus Controller Using SRQ Using *STB? to Read the Status ByteUsing the Message Available Bit MAV 107 To Determine When a Command Sequence is CompletedUsing *OPC to Signal When Data is in the Output Buffer STATusQUEStionable? Status Reporting CommandsRemote Interface Reference Status Reporting Commands STATusQUEStionableCONDition? OPC CLSESE? ESR? WAI PSC?SRE? STB? 111 An Introduction to the Scpi Language ‘‘SOURceCURRentTRIGgered’’ ‘‘APPLy 3.5,1.5’’ 112 Command Format Used in This ManualCURRent currentMINimumMAXimumUPDOWN Sourvolt MIN Sourcurr MAX Command SeparatorsUsing the MIN and MAX Parameters Sourvolt Mincurr MAX ‘‘CURR? MAX’’ Querying Parameter SettingsScpi Command Terminators IEEE-488.2 Common Commands 115 Scpi Parameter TypesCurr currentMINMAXUPDOWN Trigsour Busimm ‡ 7KHSRZHUVXSSO\ªVLQSXWDQGRXWSXWEXIIHUVDUHFOHDUHG Halting an Output in Progress RQILUPHG&RPPDQGV Scpi Conformance Information SOURce VOLTageLEVelIMMediateAMPLitude voltageMINMAXUPDOWN 118 HYLFH6SHFLILF&RPPDQGV IEEE-488 Conformance Information Error Messages 113, Undefined header 122 Error Appl Execution Errors Invalid character in number Program mnemonic too longUndefined header Example Triggdel Character data too long Block data errorsExpression errors Invalid character data Data out of range Settings conflictCALibrationSTRing command Too many errors RS-232 overrun error Isolator Uart framing errorIsolator Uart overrun error RS-232 framing error Self-Test Errors Calibration Errors Bad OVP cal data Bad DAC DNL error correction dataCal OVP or OCP status enabled Cal checksum failed, DAC DNL error correction data Application Programs 132 133 ++ Example for GpibieeeApplication Programs C++ Example for Gpibieee Diode.c End of Program 134 Application Programs ++ Example for Gpibieee 135 Excel 5.0 Example for Windows 3.1 and Gpib 136 Visuccess 137 End of Program 138 Tutorial 140 141 Overview of Agilent E3632A OperationTutorial Overview of Agilent E3632A Operation 142 143 Output CharacteristicsTutorial Output Characteristics 144 Output Characteristics 145 Unwanted SignalsUnregulated State 146 Multiple Loads Connecting the LoadTutorial Connecting the Load Output Isolation 148 Tutorial Connecting the Load R n i n gRemote Voltage Sensing Pulse Loading Load ConsiderationCapacitive Loading Inductive loading 150 Tutorial Connecting the Load Reverse Current Loading Tutorial Extending the Voltage and Current Range Extending the Voltage and Current RangeSeries Connections Parallel Connections 152 Remote ProgrammingTutorial Remote Programming Speed of Response Programming Down 153 154 ReliabilityTutorial Reliability Specifications 156 157 Performance SpecificationsSpecifications Performance Specifications OCP 158 159 Supplemental CharacteristicsSpecifications Supplemental Characteristics 160 161 Dimensions of Agilent E3632A Power Supply Specifications Supplemental Characteristics 162 163 Index 164 165 166 Warranty According to ISO/IEC Guide 22 and EN Declaration of Conformity