Agilent Technologies 6812B Trigger Delays and Phase Synchronization, Voltm Fixed List Count Dwel

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Front Panel Operation - 4

Action

1.Press Voltage to access the Voltage Menu. Then press to access the voltage mode command.

2.On the Entry keypad, press ↓ or ° to scroll through the mode parameters to obtain LIST and press Enter.

3.Access the List Menu by pressing Shift List. The first menu command is the count. From the Entry keypad, change the list count from the default (1) to 2. Press Enter.

4.Access the List menu again and press until you access the dwell time. This specifies the "on" time for each voltage point, which is effectively the output pulse width. The first dwell point (0) appears in the display. On the Entry keypad, press . 0 3 3 and Enter.

5.Pressing the Enter key automatically advances to the step in the list. Enter the following values for dwell list points 1 through 5: .067, .083, .067, .150, .067. Press Enter to enter each value. When you finish, you will be at point 6, which is the end of the list.

Note: Press Shift ￿Index or Shift Index to access and edit any list point.

6.Press until you access the voltage list. This specifies the amplitude of each output point during its corresponding dwell period. The first voltage list point (0) appears in the display. On the Entry keypad, press 1 6 0 and Enter.

7.Pressing the Enter key automatically advances to the step in the list. Enter the following values for voltage list points 1 through 5: 0, 120, 0, 80, 0. Press Enter to enter each value. When you finish, you will be at point 6, which is the end of the list.

Note: Press Shift ￿Index or Shift Index to access and edit any list point.

8.Press until you access the step command. Check that it is at the default mode (AUTO). This lets a single trigger run your list for the specified count.

9.Press Output On/Off to enable the output. The Dis annunciator will go off.

10.Press Trigger Control and Enter to initiate the transient trigger sequence.

11.Press Shift Trigger. This sends the ac source an immediate trigger to generate the four output pulses. The output returns to the immediate value at the end of the list.

Note: To clear a list, press Clear Entry. This truncates or clears the list at the presently displayed list point. Each list must be accessed and cleared separately.

7 - Trigger Delays and Phase Synchronization

Display

VOLT:M FIXED

VOLT:M

LIST

COUNT

2

DWEL 0

.033

DWEL 1

.067

DWEL 2

.083

DWEL 3

.067

DWEL 4

.150

DWEL 5

.067

DWEL 6

EOL

VOLT 0

160

VOLT 1

0

VOLT 2

120

VOLT 3

0

VOLT 4

80

VOLT 5

0

VOLT 6

EOL

STEP AUTO

0 V 60 Hz

INIT:IMMED

0 V 60 Hz

The ac source trigger system also lets you program trigger delays as well as synchronize output changes to a specific phase angle of the output waveform.

In example ϕ, the output transient is triggered immediately at the receipt of the trigger signal. In example , a delay time of approximately 16.7 milliseconds elapses between the occurence of the trigger and the start of the output transient. In example , the trigger source is programmed for phase synchronization, which means that the transient occurs at the first occurrence of the specified phase angle after the trigger signal is received.

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Contents User’s Guide AC Power Solutions Agilent Models 6811B, 6812B, and 6813BCertification Warranty InformationGeneral Safety SummarySafety Symbols EMC DeclarationPrinting History Acoustic Noise InformationTable of Contents Entry Keys Examples of Front Panel Programming Performing the Calibration ProcedureIntroduction Performing the Verification TestsLine Voltage Conversion Error Number ListPage Location Document OrientationTopic Options and Parts Safety ConsiderationsEarlier AC Source Models OptionsAgilent Part Number DescriptionOperator Replaceable Parts Model Description Front Panel/Remote OperationCapabilities Steady-state Output Characteristic in real-time mode Steady-state Output CharacteristicPeak Current Limit Peak Current/Dynamic Power CapabilityPeak Inrush Example Typical Peak Current Output CapacitiesCapacitance in μF 127 254 Ipeak settingVoltage Regulation RMS Current Limit CircuitOutput Impedance Real Time RegulationOutput Coupling Page Inspection CleaningDamage Packaging Material Items SuppliedBench Operation LocationRack Mounting Not block the fan exhaust at the rear of the unitInput Source and Line Fuse Installing the Power CordInput Connections Output Connections Connecting the Power CordRemote Sense Connections Wire ConsiderationsVoltage Drops Current RatingsRemote Sense Connections Remote Sensing and OVP Considerations Trigger ConnectionsDigital Connections Controller Connections Gpib ConnectorRS-232 Connector Interface CommandsRS-232 Interface RS-232 Data FormatNull Modem Interface Lines Response Data Terminator Hardware HandshakePreliminary Checkout IntroductionCheckout Procedure Using the KeypadPress Output On/Off Press 1, 2, 0, EnterPress Protect Press 1, 6, 0, EnterSelftest Errors Error MessagesPower-On Selftest Errors Case of TroubleLine Fuse Runtime Error MessagesIndicates May appear at runtimePage Front Panel, Overall View Front Panel DescriptionAC+DC System Keys Dis lay Command FunctionScrolling Keys Function KeysImmediate Action Keys Meter Display Keys Display Command FunctionDisplay Measurement DisplayList Output Control KeysRST CLS Protection and Status Control KeysProtclear Initimmed Trigger and List Control KeysIMM AbortThrough Are used for entering numeric values Is the decimal Entry KeysSet the output to 120 V rms as follows Setting the Output Voltage AmplitudeExamples of Front Panel Programming Setting the DC Offset Setting the Output FrequencyTo verify the output, use the meter menu ActionOvercurrent protection feature as follows Setting a Protection FeatureBit Number Bit Weight Clearing Protection ConditionsPulse Using Transient Voltage ModesPulse Transient Step TransientVoltt Voltm StepVoltm Pulse List TransientWidth DcycleVoltm Fixed List Count Dwel Trigger Delays and Phase SynchronizationDwel EOL Volt Volt EOL Step AutoSyncphas Initimmed Syncsour PhaseExample Display Programming Slew Rates Using Slew Rates to Generate WaveformsSlew Voltm FixedStep Slewm SlewtMeasuring Peak Inrush Current Syncsour Phase SyncphasCurrlev CurrpeakTo configure the RS-232 interface, proceed as follows Setting the Gpib Address and RS-232 ParametersSaving and Recalling Operating States Action Display To set the Gpib address, proceed as followsTable A-1. Performance Specifications1 SpecificationsTable A-1. Performance Specifications Table A-2. Supplemental Characteristics Supplemental CharacteristicsTrig Out HC TTL output Trig In 10k pullup Table A-3. Operation Below 45 Hz Operation Below 45 HzPage Equipment Required Verification and CalibrationRecommended Model Test SetupTable B-1. Equipment Required Performing the Verification Tests Turn-On Checkout ProcedureAC Voltage Programming and Measurement Accuracy Action Normal ResultRMS Current Accuracy Test DC Voltage Programming and Measurement AccuracyVolt 0, Outpcoup DC, Offset Volt 50, Currrange LOW, CurrlevTable B-3. Agilent 6812B Verification Test Record Table B-2. Agilent 6811B Verification Test RecordDC Programming and Measurement Accuracy RMS Current Measurement AccuracyTable B-4. Agilent 6813B Verification Test Record Table B-3Front Panel Calibration Menu Performing the Calibration ProcedureCalibrating and Entering Voltage Offset Values Enable Calibration ModeFront Panel Calibration Callev P4 Calibrating and Entering DC Voltage Gain ValuesCalibrating and Entering AC rms Voltage Gain Values Calibrating and Entering rms Current Values Calibrating the OVP Trip PointCalibrating the Output Impedance Calibrating and Entering rms Current Measurement ValuesSaving the Calibration Constants OFFCalibration Error Messages Changing the Calibration PasswordTable B-5. Gpib Calibration Error Messages Calibration Over the GpibFigure B-2. Calibration Program Listing Sheet 1 Figure B-2. Calibration Program Listing Sheet 2 Figure B-2. Calibration Program Listing Sheet 3 Page Table C-1. Error Numbers Error Number ListError Messages Error Messages C Page Check the Power Transformer Connector all Models Check the Jumper Wire Model Agilent 6811B/6812B onlyOpen the Unit Check the Line Jumpers all ModelsFigure D-1. Line Voltage Conversion Components Close the UnitIndex Index Index Canada Australia/New Zealand United States Latin AmericaEurope Asia Pacific JapanManual Updates
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