Agilent Technologies 66001A Selftest Error Messages, Display, Failed Test, Runtime Error Messages

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Selftest Error Messages

Table 3-3 lists the displayed selftest error messages. All these errors are hardware failures that require service.

	Note	If you are using the optional Agilent 66001A MPS Keyboard, it will also display selftest error
	messages.

		Table 3-3. Selftest Error Messages

Display

U1 U 2 U 3 U 4 U 5 U 6 U 7

Failed Test

Internal RAM External RAM ROM checksum (Not used)

(Not used)

12 V supply

5 V supply

Display

U8 U 9 U 10 U 11 U 12 U 13

Failed Test

Ambient temperature reading (Not used)

Voltage programming, low range Current programming, low range Voltage programming, high range Current programming, high range

The power module also can detect an EEPROM checksum error. This error is not identified by number, but causes the following symptoms:

∙The power module starts up with both the VOLTS and AMPS full-scale programming and metering ranges accepting values up to 1000.

∙Self-test error code 330 is stored in the SCPI error queue where it can be read by software (see "Chapter 5 - Error Messages" in the Programming Guide).

∙The software identify query (*IDN?) returns 0A in the model field.

∙The calibration password is set to 0.

An EEPROM checksum error can occur due to the following operating conditions:

∙Excessive number of write cycles to an EEPROM (see Table 1-2). This condition is not recoverable and requires service.

∙Loss of ac input power during a checksum calculation. This condition, which is very unlikely, is recoverable. You may be able to recover by performing the following steps from the controller or keyboard:

1.Enable the calibration mode (CAL:STAT ON,0)

2.Save an operating state to EEPROM. (e.g., *SAV 2)

∙This forces the power module to write to EEPROM and establishes a new checksum.

Runtime Error Messages

Table 3-4 lists the runtime error messages. Runtime errors cease normal power module operation, disable the output, and display a code on the front panel. The error code is preceeded by "U" and is displayed on both the VOLTS and AMPS displays. Runtime errors are hardware malfunctions that require service.

Display

U 101

Meaning

EEPROM write error

Table 3-4. Runtime Error Messages

Display	Meaning
U 102	Internal software error

Display

U 103

Meaning

Unexpected interrupt

30 Turn-On Checkout

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Contents USER’S Guide Agilent Part No Microfiche Part No SeptemberCertification Safety Summary Herstellerbescheinigung Symbol DescriptionPrinting History Manufacturers DeclarationManufacturer’s Name and Address USAModel Numbers a 66000A Page Table of Contents Basic Power Module Commands Using the Agilent 66001A MPS KeyboardItem Description Option DescriptionGeneral Information Accessories Output Ratings Specifications and Supplemental CharacteristicsProgramming Accuracy @ calibration temperature ± 5 C Readback AccuracyPerformance Specifications Parameter Supplemental Characteristics ParameterAgilent Model 66101A 66102A 66103A 66104A 66105A 66106A 66101A 66102A Agilent Model 66103A 66104A 66105A 66106A Remote Sensing CapabilityWeight Recommended Calibration Interval Safety ComplianceDimensions Downprogramming Monotonicity Gpib Interface CapabilitiesReplaceable Parts List Description Agilent Part No Supplemental CharacteristicsOutput Characteristic Curve Parameter Agilent Model Number and Parameter ValuePage Installation SwitchesInspection Power Module Line Fuse and Switches Display Function Switch Remote Inhibit RI Function SwitchesSwitch Setting RI Action Calibration Function SwitchesInstalling The Module In The Mainframe Connecting The LoadOutput Connector Resistance Ω/ft Selecting the Proper Wire SizeOutput Connections AWG No. *AmpacityRemote Voltage Sensing Voltage ReadbackOutput Rating Output NoiseParallel Operation Voltprot Currlev Voltlev Outp OFFVoltlev Voltprot Currlev MAX Outp onMultiple Loads Capacitive LoadsInductive Loads Connecting The ControllerBattery Charging OVP Considerations Introduction Power Module Front Panel Display Turn-On Checkout Module Panel DisplayPower Module Turn-On State Checking Basic Module FunctionsAddr Dis Prot Case Of Trouble Module Output ConnectorError Messages Mainframe FailureMessages Selftest Error MessagesRuntime Error Messages DisplayGpib Controller Basic Power Module CommandsSynopsis Of Commands MPS KeyboardPower Module Protection Commands Function CommandPower Module Output Commands Function Power Module Fixed-Mode Output CommandsControlling List-Mode Output Power Module List-Mode Output CommandsPower Module Trigger Commands Function Controlling TriggersDFI Discrete Fault Indicator Output Command Changing The Power On StateUsing the RI/DFI Functions RI Remote Inhibit Input DFI Output Commands FunctionEnabling Or Disabling The Calibration Function Changing The Calibration PasswordCalibration Performing a CalibrationCalibrating Voltage Table A-2. Voltage Calibration ProcedureEquipment Required Keyboard Entry Controller Entry † FunctionCalcurrlev MIN Table A-3. Current Calibration ProcedureDisable the output Calcurrlev MAXCalibration Error Messages Recovering The Factory Calibration ConstantsRecovering From a Lost Calibration Password Agilent Basic Calibration ProgramPassword is Optional only Assign Power Supply Gpib AddressInitialize Power Supply 10 ! Voltage Calibration ProgramElse END ifPrint Current Calibration not Saved Print Current Calibration CompleteUsing The Agilent 66001A MPS Keyboard Connecting The KeyboardAgilent 66001A MPS Keyboard Annunciators Keyboard DescriptionMeter Area Agilent 60001A MPS Keyboard System Keys  Letter Keys Using The Display Changing or Entering ValuesDisplaying Status Sending Scpi Commands Command ExampleQuery Example Error Example Scpi Command Tree Agilent 60001A MPS Keyboard Prot Unr IndexAddr AmpsLsn Prot Shift SRQ TlkScpi InitMeas VOLT?, 32 Outp Agilent Sales and Support Offices Agilent Sales and Support OfficeManual Updates