Agilent Technologies 6813B Manuale Utente

User’s GuideAC Power SolutionsAgilent Models 6811B, 6812B, and 6813BFor instruments with Serial Numbers:Agilent 6811B: US38390101-upAgilent 6812B:

111General InformationDocument OrientationThis manual describes the operation of the Agilent 6811B/6812B/6813B AC Power Solutions. These unitswill be

1 - General Information12Earlier AC Source ModelsWith the exception of some minor readback specification differences, information in this manual alsoa

General Information - 113The following table lists some common user-replaceable parts:Table 1-2. Operator Replaceable PartsItem Agilent Part NumberPow

1 - General Information14The following model ac power sources are described in this User’s Guide:Model DescriptionAgilent 6811B 0-300 V rms; 375 VA (4

General Information - 115Remotely programming is accomplished from either the GPIB bus or from an RS-232 serial port. GPIBand RS-232 programming uses

1 - General Information16Peak Current/Dynamic Power CapabilityThe ac source can generate peak currents that exceed the rms current capability of the u

General Information - 117♦ as voltage increases, the Ipeak setting needs to be decreased.♦ as frequency increases, the Ipeak setting can be increased.

1 - General Information18RMS Current Limit CircuitThe output rms current limit is adjustable to any value within the range of the unit. If the load a

General Information - 119CAUTION: Programming the ac source output impedance into a load with a low impedance cancause output voltage instability, whi

2Warranty InformationCERTIFICATIONAgilent Technologies certifies that this product met its published specifications at time of shipment from the facto

212InstallationInspectionDamageWhen you receive your ac source, inspect it for any obvious damage that may have occurred duringshipment. If there is d

2 - Installation22LocationRefer to the Safety Summary page at the beginning of this manual for safety-related information aboutenvironmental condition

Installation - 223Input ConnectionsInput Source and Line FuseYou can operate your ac source from a single-phase ac power source as indicated on the

2 - Installation24Figure 2-3. Connecting the Power CordOutput ConnectionsThe power output terminal block has a floating output terminal connection and

Installation - 225Wire ConsiderationsNOTE: To minimize the possibility of instability on the output, keep load leads as short aspossible bundle or t

2 - Installation26♦ Connect the phase 1 (1) sense terminals to the side of the load that connects to the correspondingoutput terminal.♦ Connect the Ne

Installation - 227Remote Sensing and OVP ConsiderationsIn remote sense applications, the voltage drop in the load leads subtracts from the available

2 - Installation28In example B, the FLT output of one unit is connected to the INH input of another unit. A fault conditionin one of the units will d

Installation - 229RS-232 InterfaceThe ac source provides an RS-232 programming interface, which is activated by commands located underthe front pane

3Safety SummaryThe following general safety precautions must be observed during all phases of operation of this instrument.Failure to comply with thes

2 - Installation30Hardware HandshakeThe RS-232 interface uses the DTR (data terminal ready) line as a holdoff signal to the bus controller.When DTR is

313Turn-On CheckoutIntroductionSuccessful tests in this chapter provide a high degree of confidence that the ac source is operatingproperly. For verif

3 - Turn-On Checkout32Using the Keypad (shift) Some of the front panel keys perform two functions, one labeled in black andthe other in blue.

Turn-On Checkout - 333Figure 3-1.Verification ConnectionsProcedure Display Explanation1. Turn the unit on. Meter modeMeter mode is active and the Dis

3 - Turn-On Checkout34Procedure Display Explanation10. Press Shift, andCurrentCURR:LEV 5 Indicates the default output current limit setting.11.Pres

Turn-On Checkout - 335Runtime Error MessagesUnder unusual operating conditions, the front panel display may show OVLD. This indicates that theoutput v

374Front panel OperationIntroductionHere is what you will find in this chapter:♦ a complete description of the front panel controls♦ front panel progr

4 - Front Panel Operation38j Display14-character vacuum fluorescent display for showing programmed commandsand measured values.k AnnunciatorsAnnunciat

Front Panel Operation - 439System KeysRefer to the examples later in this chapter for more details on the use of these keys.SYSTEMRecallSaveErrorAddre

4SAFETY SYMBOLSDirect currentAlternating currentBoth direct and alternating currentThree-phase alternating currentEarth (ground) terminalProtective ea

4 - Front Panel Operation40Function KeysRefer to the examples later in this chapter for more details on the use of these keys.FUNCTIONMeterInputProtec

Front Panel Operation - 441Meter Display KeysMetering keys control the metering functions of the ac source.Press this key to access the meter menu lis

4 - Front Panel Operation42Output Control KeysOutput control keys control the output functions of the ac source.Press this key to access the voltage m

Front Panel Operation - 443Press this key to access the phase menu list.Display Command FunctionPHASE <value> Set immediate output phasePHASE:T

4 - Front Panel Operation44Protection and Status Control KeysThe Protect and Status keys control the protection functions and status registers of the

Front Panel Operation - 445Trigger and List Control KeysThe Trigger Control key controls output transient triggers. The List key controls the generati

4 - Front Panel Operation46Entry KeysRefer to the examples later in this chapter for more details on the use of these keys.-3210.789456ENTRYECalibrati

Front Panel Operation - 447Examples of Front Panel ProgrammingYou will find these examples on the following pages:1 Setting the output voltage amplitu

4 - Front Panel Operation482 - Setting the Output FrequencyWhen you turn on the ac source, the default output frequency is a 60 Hz. Assuming the volta

Front Panel Operation - 4494 - Setting a Protection FeatureYou can set the ac source to disable its output if it detects an overvoltage or overcurrent

5Declaration PageDECLARATION OF CONFORMITYaccording to ISO/IEC Guide 22 and EN 45014Manufacturer’s Name: Agilent Technologies, Inc.Manufacturer’s Addr

4 - Front Panel Operation50Condition ActionOV ConditionUsually overvoltage conditions are caused by an external source forcing voltage into the output

Front Panel Operation - 451Step TransientThe Voltage Menu lets you specify an alternate or triggered voltage level that the ac source will apply tothe

4 - Front Panel Operation52Action Display1.Press Voltage to access the Voltage Menu. On the Entry keypad, press 1 0 2 Enter.VOLT 1022.Press ô to a

Front Panel Operation - 453Action Display1.Press Voltage to access the Voltage Menu. Then press ô to access the voltage modecommand.VOLT:M FIXED2. O

4 - Front Panel Operation54Note that phase synchronization is referenced to an internal phase signal. The output of the unit isnormally offset by 0° w

Front Panel Operation - 4558 - Using Slew Rates to Generate WaveformsAs shown in the previous examples there are a number of ways that you can generat

4 - Front Panel Operation56Example Displayj This example uses the immediate slew rate. First, access the Voltage menuand press ô until you access the

Front Panel Operation - 4579 - Measuring Peak Inrush CurrentPeak inrush current is a non-repetitive measurement in the sense that peak inrush current

4 - Front Panel Operation5810 - Setting the GPIB Address and RS-232 ParametersYour ac source is shipped with the GPIB address set to 5 This address ca

59ASpecificationsSpecificationsTable A-1 lists the specifications of the ac source. Performance specifications are warranted over theambient temperatu

6Acoustic Noise InformationHerstellerbescheinigungDiese Information steht im Zusammenhang mit den Anforderungen derMaschinenläminformationsverordnung

A - Specifications60Table A-1. Performance Specifications (continued)Parameter Agilent 6811B/6812B/6813BMeasurement Accuracy (continued)rms Current H

Specifications - A61Supplemental CharacteristicsTable A-2 lists the supplemental characteristics, which are not warranted but are descriptions of typi

A - Specifications62Table A-2. Supplemental Characteristics (continued)Parameter Agilent 6811B Agilent 6812B Agilent 6813BTransient SystemPhase Sync

Specifications - A63Operation Below 45 HzThe following operating characteristics apply for output frequencies between 45Hz and 1Hz. Below 1Hz, instant

65BVerification and CalibrationIntroductionThis appendix includes verification and calibration procedures for the Agilent 6811B/6812B/6813B ACPower So

B - Verification and Calibration66Table B-1. Equipment RequiredEquipment Characteristics Recommended ModelDigital VoltmeterResolution: 10 nV @ 1 VRead

Verification and Calibration - B67Performing the Verification TestsThe following procedures assume you understand how to operate the ac source from th

B - Verification and Calibration68DC Voltage Programming and Measurement AccuracyCAUTION: Disconnect the ratio transformer for this test.This test ver

Verification and Calibration - B69Table B-2. Agilent 6811B Verification Test RecordModel Agilent 6811B Report No.____________Date_____________Test Des

7Table of ContentsWarranty Information 2Safety Summary 3Declaration of Conformity 5Acoustic Noise Information 6Printing History 6Table of Contents 71

B - Verification and Calibration70Table B-3 (continued) DC Programming and Measurement Accuracy425 Vdc accuracyFront Panel Measurement−425 Vdc accurac

Verification and Calibration - B71Performing the Calibration ProcedureTable B-1 lists the equipment required for calibration. Figure B-1 shows the tes

B - Verification and Calibration72Front Panel CalibrationWARNING: LETHAL VOLTAGES. Ac sources can supply 424 V peak at their output. DEATHon contact

Verification and Calibration - B7311.Press Shift Calibration, scroll to CAL DATA 0.00, and use the Entrykeypad to enter the dc voltage value displayed

B - Verification and Calibration7426.Press Shift Calibration, scroll to the CAL LEV P1 command, use ° toscroll to the P2 parameter, and press Enter. T

Verification and Calibration - B75Calibrating and Entering rms Current Measurement ValuesAction Display40. Connect the DVM (ac rms mode), current shun

B - Verification and Calibration76Changing the Calibration PasswordThe factory default password is 0. You can change the password when the ac source i

Verification and Calibration - B77Figure B-2. Calibration Program Listing (Sheet 1 of 3)10 !20 ! AC Source calibration program Re

B - Verification and Calibration78Figure B-2. Calibration Program Listing (Sheet 2 of 3)560 OUTPUT @Ac;"CAL:LEV P1"570 WAIT 10580 INPU

Verification and Calibration - B79Figure B-2. Calibration Program Listing (Sheet 3 of 3)1110 PRINT TABXY(15,9),"3. Connect the 3458A across the

83 TURN-ON CHECKOUT 31Introduction 31Preliminary Checkout 31Using the Keypad 32Checkout Procedure 32In Case of Trouble 34Error Messages 34Line Fuse 35

81CError MessagesError Number ListThis appendix gives the error numbers and descriptions that are returned by the ac source. Error numbersare returne

C - Error Messages82–161 Invalid block data [e.g., END received before length satisfied]–168 Block data not allowed–170 Expression error–171 Invalid e

Error Messages - C8340 Voltage selftest error, output 141 Voltage selftest error, output 242 Voltage selftest error, output 343 Current selftest error

85DLine Voltage ConversionWARNING: Shock Hazard Hazardous voltage can remain inside the unit even after ithas been turned off. This procedure should

D - Line Voltage Conversion86♦ You need only to lift the board out of the way, you do not need to disconnect any cables.♦ Locate the connector in fron

87Index—A—ac line conversion, 85accessories, 12airflow, 22annunciatorsφ1, 38Addr, 38Cal, 38CC, 38CV, 38Dis, 38Err, 38OCP, 38Prot, 38Rmt, 38Shift, 38SR

Index88—L—lethal voltages, 65line fusereplacing, 35line voltage conversion, 85List, 50, 52load regulation, 18load voltage drops, 25location, 22low fre

Index89interface cable, 30pinouts, 29—S—safety class, 12safety summary, 3safety warning, 12saving operating states, 58self-test, 31selftest errors, 34

9Enable Calibration Mode 72Calibrating and Entering Voltage Offset Values 72Calibrating and Entering DC Voltage Gain Values 73Calibrating and Entering

90Agilent Sales and Support OfficesFor more information about Agilent Technologies test and measurement products, applications,services, and for a cur

Manual UpdatesThe following updates have been made to this manual since the print revision indicated on thetitle page.4/15/00All references to HP have