Agilent Technologies 668xA manual Recovering From Calibration Problems, Calibration Error Messages

Page 99

Table A-2. Typical Front Panel Calibration Procedure (continued)

 

Action

Display Response

 

 

 

 

Calibrating Current Monitor (IM) (Series 668xA/669xA Only)

 

If you perform this calibration, then you must recalibrate the current output.

 

1.

Make certain the appropriate shunt resistor (see Table A-1) is the only load on the power

(Meter mode)

supply.

IMON CAL

2.

Select IMN calibration by pressing

 

If the power supply is not in CC mode, an error occurs.4

WRONG MODE

3.

Wait for DVM reading to stabilize. Then read DVM and compute the current value

(Meter mode)

 

(DVM reading ⎟ shunt resistance).

(Meter mode)

4.

Use Entry keypad to enter the current value.

Note: If the entered value is not within acceptable range, an error occurs.

CAL ERROR

 

Wait for the power supply to compute the new current calibration constants, which will be

CAL COMPLETE

 

stored in RAM.

CAL ERROR

If the constant is not within acceptable range, an error occurs.

 

 

 

4. Program the output voltage to 10% of its rated output*

 

 

*See applicable Output Ratings in “Chapter 1- General Information”

 

 

 

 

Recovering From Calibration Problems

You can encounter serious calibration problems if you cannot determine a calibration password that has been changed or the power supply is severely out of calibration. There are jumpers inside the power supply that permit the calibration password to be defeated and allow the original factory calibration constants to be restored. These jumpers are explained in the Service

Manual.

Calibration Error Messages

Error messages that can occur during calibration are shown in Table A-3.

Table A-3. GPIB Calibration Error Messages

Error

Meaning

Error

Meaning

No.

 

No.

 

1

CAL jumper prevents calibration1

6

Wrong CAL command sequence

2

CAL password is incorrect

7

Incorrect state (CV/CC) for this command

3

CAL mode is not enabled

 

 

4

Incorrect computed readback constants

1 This is a hardware disable. See the power supply

5

Incorrect computed programming

 

constants

Service Manual.

 

 

 

 

Calibration 99

Image 99
Contents Agilent Part No Microfiche Part No January Operating Guide Gpib DC Power SuppliesExclusive Remedies WarrantyLimitation of Warranty CertificationGeneral Safety SummaryHerstellerbescheinigung Safety Symbol DefinitionsSymbol Description Printing HistoryManufacturer’s Name and Address Declaration of Conformity6x4yA6x5yAE435xA.b.11.24doc.doc 6x4yA6x5yAE435xA.a.11.24doc.doc Table of Contents Connecting Series 667xA Power Supplies to the Load Controller ConnectionsIntroduction Getting Acquainted Programming the Output Calibration Over the Gpib 100 Introduction Equipment Required General ProcedureOption 601 Installation 135 Option 602 Installation 136 Front Panel CalibrationTopic Location General InformationIntroduction Quick Document OrientationSafety Considerations Instrument IdentificationOptions Support rails E3663AC are required AccessoriesFamily Power Agilent Models DescriptionFront Panel Programming Remote ProgrammingAnalog Programming General Output CharacteristicSpecifications and Supplemental Characteristics Series Specifications CharacteristicsCurrent@ 55C Output Ratings VoltageCurrent@ 40C Current@ 50COutput Programming Range maximum Average Resolution VoltageTemperature Coefficients change per C Voltage Maximum Input PowerMaximum Reverse Bias Current Auto-Parallel ConfigurationAnalog Programming IP & VP Input Signal Maximum AC Line Current Ratings Vac nominalGpib Interface Capabilities Digital Port CharacteristicsSafety Compliance Complies with Dimensions WidthOutput Impedance Curves Typical General Information 50 a 25 a 15 a 51.188 a 25.594 a 15.356 a 214 a 095 a Rms 15 AM fuse Digital Port Characteristics Output Impedance Curves Typical General Information Current@ 0 to 55C Voltage 04% + Current0 . l % +±Current Analog Programming ±IP Current Monitor +IM Typical Resolution VoltageMaximum Input VA and Power ±Current ReadbackFull-load programming speed up/down time time for Analog Programming IP & VP Input Signal VP Input ImpedanceIP to -IP Differential Input Signal Current Monitor Output +IM Output SignalOutput Characteristic Curve General Information Weight NetOutput Impedance Curves Typical General Information Output Ratings Voltage Current Typical Common Mode Noise Current Rms Peak-to-peak VP Input Signal+ IP Input Signal Current Monitor IM Output SignalRange Rms line current Maximum Reverse Voltage Current Sink CapabilityMaximum AC Line Current Ratings Range Rms line current Line fuseMaximum memory write cycles Designed to comply withHeight Milliohms Output Impedance Curves Typical440 a 220 a 110 a Derated linearly 1%/C from 40 C to Temperature Coefficients change per C Max Power 6.67KW VoltageOvervoltage Protection OVP Typical Resolution Voltage Drift Temperature Stability9000 VA Output Characteristic Curve Vout Agilent 6690A Agilent 6691AAgilent 6692A Operator Replaceable Parts List Description Agilent Part No Supplemental Gpib Characteristics for All Models ParameterOperator Replaceable Parts List Description Agilent Part No Items Supplied InstallationInspection Damage Packaging MaterialBench Operation Location and TemperatureCleaning Temperature PerformanceInput Power Source Installing the Series 664xA and 665xA Power CordInstalling the Series 667xA Power Cord Connecting the Series 667xA Power Cord Series 668xA/669xA Overall Wiring Diagram Installing the Series 668xA Power CordConnecting the Series 668xA Power Cord Installing the Series 669xA Power CordConnecting the Series 669xA Power Cord Page Turn-On Checkout Introduction Preliminary Checkout All ModelsTurn-On Checkout Shifted Keys Power-On Checkout All ModelsUsing the Keypad All Models Output Checkout All ModelsChecking the Voltage Function Open or Connected to a VoltmeterPress Prot Clear Checking the Current Function Line Fuse Checking the Save and Recall Functions All ModelsDetermining the Gpib Address All Models Case of TroubleSeries 667xA Supplies Series 664xA and 665xA SuppliesSeries 668xA Supplies Error Messages All ModelsSelftest Errors Power-On Error MessagesError Display Failed Test Checksum ErrorsRuntime Error Messages Power-On Selftest Errors Display Failed TestLoad Wire Selection All Models User ConnectionsRear Panel Connections All Models Analog Connector All Models Digital Connector All ModelsPin No Fault/Inhibit Digital I/O 6651A 6652A 6653A 6654A Output IsolationLoad Considerations Capacitive Loads6641A 6642A 6643A 6644A 6645A 6651A 6652A 6653A 6654A 6655A Battery ChargingLocal Voltage Sensing Inductive LoadsRemote Voltage Sensing Stability Connecting One Supply to the LoadConnecting Supplies in Auto-Parallel Enable OCP on the Master Program Slave 2 OVP to the Maximum LevelInsert Protection Diodes Connecting Supplies in Series Wiring ConsiderationsExternal Voltage Control Programming Connecting Series 667xA Power Supplies to the Load4a. Series 667xA Rear Panel Output Connections 6671A 6672A 6673A 6674A 6675A Connecting the Sense Leads Connecting One Power Supply To Multiple Loads Connecting One Power Supply to a Single LoadConnecting Supplies in Auto-Parallel 4f. Series 667xA Series Connection Remote Sensing Optional 4g. Series 667xA Analog Programming Connections Wiring Considerations -4gConnecting Series 668xA and 669xA Power Supplies to the Load Local Voltage Sensing Remote Sense Points Load LeadsInstructions supplied with the kit Connecting Supplies in Auto-Parallel Connecting Supplies in Series 5g. Series 668xA and 669xA Analog Programming Connections Controller Connections Stand-Alone ConnectionsLinked Connections Controller Connections Front Panel Operation Getting AcquaintedFront Panel Operation Dis DisplayStatus Annunciators UnrFunction Keys Front Panel Controls and IndicatorsOutput Rotary Controls Voltage System KeysEntry Keys Thru Press to select numerical values Line Switch On / OffProgramming the Output Establishing Initial ConditionsSetting the OVP Level Programming VoltageProgramming Overvoltage Protection Programming Current Checking OVP OperationClearing The OVP Condition Checking OCP Operation CV Mode vs. CC ModeSetting The OCP Protection Programming Overcurrent ProtectionUnregulated Operation Saving and Recalling Operating StatesTurn-On Conditions Action Display Shows Setting the Gpib AddressTypes of Power Supply Gpib Addresses Changing the Power Supply Gpib AddressPage Parameters Calibrated General ProcedureCalibration Equipment RequiredFront Panel Calibration Figure A-1. Calibration Test Setup Series 668xA/669xA SetupEntering Current Calibration Values Enabling the Calibration Mode PASWDlEntering Voltage Calibration Values Calibrating the OVP Trip PointRecovering From Calibration Problems Calibration Error MessagesTable A-3. Gpib Calibration Error Messages Meaning Front Panel Corresponding Scpi Command Calibration Over the GpibCalibration Language Dictionary Command Syntax Command Syntax CALibrateSAVE Parameters None ExamplesCalcurrmon Series 668xA/669xA only Agilent Basic Calibration Program CalvoltFigure A-2. Agilent Basic Calibration Program Steps 640 Through 670 not Used on 664x, 665x 570 ! Line 590 Password Must be Edited for Model Other thanCurrent Monitoring Resistor Operation VerificationTest Equipment Required List of EquipmentFigure B-1. Verification Test Setup Performing the Tests Sufficient size to carry the maximum rated current Current Programming and Readback AccuracyModel Agilent 6643A Voltage Programming and Readback Model Agilent 6641A Voltage Programming and ReadbackCurrent Programming and Readback Model Agilent 6642A Voltage Programming and ReadbackModel Agilent 6645A Voltage Programming and Readback Model Agilent 6654A Voltage Programming and Readback Model Agilent 6651A Voltage Programming and ReadbackModel Agilent 6652A Voltage Programming and Readback Model Agilent 6653A Voltage Programming and ReadbackModel Agilent 6655A Voltage Programming and Readback Model Agilent 6674A Voltage Programming and Readback Model Agilent 6671A Voltage Programming and ReadbackModel Agilent 6672A Voltage Programming and Readback Model Agilent 6673A Voltage Programming and ReadbackModel Agilent 6675A Voltage Programming and Readback Model Agilent 6683A Voltage Programming and Readback Model Agilent 6680A Voltage Programming and ReadbackModel Agilent 6681A Voltage Programming and Readback Model Agilent 6682A Voltage Programming and ReadbackModel Agilent 6684A Voltage Programming and Readback Model Agilent 6690A Voltage Programming and Readback Model Agilent 6691A Voltage Programming and ReadbackModel Agilent 6692A Voltage Programming and Readback Page Series 664xA and 665xA Power Supplies Line Voltage ConversionLine Voltage Conversion Figure C-2. Series 665xA Line Select Jumpers Series 667xA Power SuppliesSeries 668xA/669xA Power Supplies Figure C-4. Removing the Series 668xA/669xA Inner Cover Digital Connector Fault/Inhibit OperationDigital Port Functions Figure D-2. Example of Inhibit Input Figure D-3. Examples of FLT Outputs Common pin Changing the Port ConfigurationDigital I/O Operation IN/OUT 2 pinCommon Relay Link OperationPage Current Loop Compensation Series 668xA Only Function of Loop CompensationCurrent Loop Compensation Series 668xA Only Current Loop Compensation Series 668xA Only Current Loop Compensation Series 668xA Only Figure E-1. CC Loop Compensation Curves For Model 6684A Setting the Loop Compensation SwitchAutoparallel Procedure Figure F-1 Master/Slave Current Division Using Agilent 668xA Series Power Supplies in AutoparallelOutput Bus Bar Options Option 601 InstallationOutput Bus Bar Options Option 602 InstallationBus Bar Spacer, 5040-1699 Minus Bus Bar Plus Bus Bar Customer bus railsIndex IndexGpib 6665xA, 24 667xA, 29 668xA, 34 669xA, 39 output isolation Index Japan United States Latin AmericaCanada Australia/New Zealand Europe Asia PacificManual Updates
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668xA, 669xA, 667xA, 664xA, 665xA specifications

Agilent Technologies has long been a pioneer in the production of high-performance electronic test and measurement instruments, particularly in the field of power sources. Among its notable offerings are the Agilent 667xA, 669xA, 665xA, 664xA, and 668xA series of power supplies. These instruments are designed to provide stable, reliable power for a variety of applications, including electronic testing, industrial processes, and research laboratories.

The Agilent 667xA series is characterized by its programmability and advanced measurement functions. These power supplies support a wide range of output voltages and currents, allowing for flexible configurations that cater to different testing needs. The built-in measurement capabilities enable users to monitor the voltage, current, and power with high precision, which is essential for ensuring optimal performance in electronic applications.

The Agilent 669xA series stands out with its high-power outputs, making it suitable for demanding applications. These power supplies deliver high voltage and current levels, making them ideal for testing high-performance devices, such as power amplifiers and motor drives. Additionally, the 669xA series includes features such as overvoltage protection and complex output sequencing to enhance the safety and reliability of the testing process.

The Agilent 665xA and 664xA series focus on delivering high accuracy and excellent regulation. These models are particularly known for their low noise operation, which is critical for sensitive applications where precision is paramount. The integrated programming capabilities allow users to automate testing sequences, thus improving efficiency in research and development settings.

The 668xA series features advanced digital signal processing that enhances the precision and stability of the output. Users benefit from features like remote sensing and monitoring, allowing feedback adjustments that maintain output accuracy despite cable losses. Furthermore, the 668xA models can integrate seamlessly with various test environments thanks to their LAN, GPIB, and USB connectivity options.

Overall, the Agilent 667xA, 669xA, 665xA, 664xA, and 668xA power supplies provide a comprehensive range of solutions for diverse electronic testing needs. With their advanced features, superb measurement capabilities, and robust performance, these instruments empower engineers and researchers to conduct their work with confidence, precision, and efficiency.