Agilent Technologies 6843A manual Using Transient Voltage Modes, Step Transient, Voltt, Voltm Step

Page 44

4 - Front Panel Operation

4 - Using Transient Voltage Modes

The ac source voltage can be programmed in the following transient operating modes:

STEP

causes the output to permanently change to its triggered value.

PULSE

causes the output to change to its triggered value for a specific time, as determined by the

 

Pulse menu parameters.

LIST

causes the output to sequence through a number of values, as determined by points entered

 

in the List menu.

FIXED

disables transient operation for the selected function.

Step Transient

The Voltage Menu lets you specify an alternate or triggered voltage level that the ac source will apply to the output when it receives a trigger. Because the default transient voltage level is zero volts, you must first enter a triggered voltage before you can trigger the ac source to change the output amplitude. Refer to Chapter 4 of the Programming Guide for more information about programming triggers.

In the following example, the voltage output is set to 120 Vrms and then stepped down to 102 Vrms.

 

Action

Display

1.

On the Function keypad, press Output On/Off to enable the output. The Dis

0 V 60 Hz

 

annunciator will go off.

 

 

2.

Press Voltage to access the Voltage Menu. On the Entry keypad, press 1 2 0 Enter.

VOLT

120

3.

Access the Voltage Menu again and press to access the triggered voltage

VOLT:T 0

 

command.

 

 

4.

On the Entry keypad, press 1 0 2 Enter.

VOLT:T

102

5.

Access the Voltage Menu again and press to access the voltage mode command. It

VOLT:M

STEP

 

should be in the default FIXED mode. An ac source function in the FIXED mode

 

 

 

does not respond to triggers. On the Entry keypad, press ↓ or ° to scroll through

 

 

 

the mode parameters. When you have STEP, press Enter.

 

 

6.

Press Trigger Control and Enter. This initiates (or enables) one immediate trigger

INIT:IMMED

 

action.

 

 

7.

Press Shift Trigger. This sends the ac source an immediate trigger signal to change

102 V 60 HZ

 

the output voltage. The triggered voltage value now becomes the VOLT value.

 

 

On three-phase ac sources the voltage steps are phase selectable. You can output a different voltage step for each phase. To do this, use Phase Select to first choose the desired phase, as previously described in example 1 for setting the immediate output voltage.

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Contents AC Power Solutions Agilent Models 6814B, 6834B, and 6843A User’s GuideWarranty Information CertificationSafety Summary GeneralSafety Symbols Declaration EMCAcoustic Noise Information Printing HistoryTable of Contents Specifications Supplemental Characteristics Performing the Calibration ProcedureError Number List Entry Keys Examples of Front Panel ProgrammingLocation Document OrientationTopic Safety Considerations Options, Accessories, and User Replaceable PartsOption Description Agilent Part NumberModel Description DescriptionCapabilities Ranges Output CharacteristicFront Panel/Remote Operation AC Source Output Characteristic in real-time mode Output VA CapabilityPage Cleaning InspectionDamage Packaging Material Items SuppliedLocation Bench OperationRack Mounting Not block the fan exhaust at the rear of the unitInput Source and Line Fuse Installing the Power CordInput Connections Output Connections Output ConnectionsWire Considerations Voltage DropsCurrent Ratings Ampacity and Resistance of Stranded Copper ConductorsRemote Sense Connections Remote Sense ConnectionsTrigger Connections Digital ConnectionsOVP Considerations Output RatingGpib Connector Controller ConnectionsInterface Commands RS-232 ConnectorRS-232 Interface RS-232 Data FormatHardware Handshake Null Modem Interface Lines Response Data TerminatorIntroduction Preliminary CheckoutUsing the Keypad Checkout ProcedureProtclear Procedure Display ExplanationVolt Voltprot CurrlevCurrprot Currprot OFFLine Fuse Error MessagesCase of Trouble Page Front Panel Description Front Panel, Overall ViewAC+DC Display Command Function System KeysImmediate Action Keys Annunciator On Phase SelectedFunction Keys Scrolling Keys Meter Display KeysDisplay Measurement KBESSEL, RectOutput Control Keys DisplayRST Protection and Status Control Keys CLSTrigger and List Control Keys InitimmedIMM AbortEntry Keys Through Are used for entering numeric values Is the decimalSetting the Output Voltage Amplitude Procedure for Single-Phase AC SourcesExamples of Front Panel Programming Set the output to 120 V rms as followsProcedure for Three-Phase AC Sources Phase 3 to 235 VrmsAction Display To verify the output, you can measure it as followsOvercurrent protection feature as follows Setting the Output FrequencySetting a Protection Feature Using Transient Voltage Modes Step TransientVoltt Voltm StepPulse Transient Voltm PulseWidth DcycleVoltm Fixed Voltm List Count List TransientAction Trigger Delays and Phase Synchronization Volt EOL Step AutoSyncphas Initimmed Syncsour PhaseExample Display Voltm Step Syncsour Phase Syncphas Initimmed ExampleUsing Slew Rates to Generate Waveforms Programming Slew RatesVoltm Fixed SlewStep Slewm SlewtSyncsour Phase Syncphas Measuring Peak Inrush CurrentRange CurrpeakSetting the Gpib Address and RS-232 Parameters To configure the RS-232 interface, proceed as followsSaving and Recalling Operating States Action Display To set the Gpib address, proceed as followsAddress Noutputs Agilent 6814B Agilent 6834B Agilent 6843A SpecificationsTable A-1. Performance Specifications1 Supplemental Characteristics Table A-2. Supplemental CharacteristicsSpecifications a Page Recommended Model CharacteristicsEquipment Required Performing the Verification Tests Test SetupTurn-On Checkout Procedure Action Normal Result Voltage Programming and Measurement AccuracyRMS Current Readback Accuracy Performing the Calibration Procedure Agilent 6814B Current Measurement AccuracyAgilent 6834B Current Measurement Accuracy Agilent 6843A Current Measurement AccuracyFront Panel Calibration Menu Enable Calibration ModeFront Panel Calibration Calibrating and Entering Voltage Calibration Values Calibrating the OVP trip pointCalibrating and Entering Current Calibration Values Changing the Calibration Password Calibrating the Output Impedance Agilent 6843A onlySaving the Calibration Constants CalpassCalibration Error Messages Table B-3. Gpib Calibration Error MessagesCalibration Over the Gpib Agilent Calibration Program ListingFigure B-2. Calibration Program Listing Sheet 1 Figure B-2. Calibration Program Listing Sheet 2 Page Error Number List Table C-1. Error NumbersError Messages Error Messages C Page Index Index Index United States Latin America Canada Australia/New ZealandEurope Asia Pacific JapanManual Updates
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