Xantrex Technology GPIB-XPD manual Over Voltage Protection OVP Calibration

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Calibration

Over Voltage Protection (OVP) Calibration

Over Voltage Protection (OVP) Calibration

We recommend that you perform OVP calibration every six months. Connecting a digital voltmeter as in “Voltage Calibration Setup” is optional.

1.Disconnect all loads from the power supply.

2.Ensure that jumper J2 on the interface PCB is CLOSED to enable remote OVP calibration (Jumper J2 is closed at the factory). See for the location on the PCB of jumper J2.

3.Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply.

4.Send the command OVCAL to the power supply. The ADR LED will light during OVP calibration. Calibration is complete when the ADR LED turns off. This may take a few minutes.

5.Use the OVSET, OVSET?, and VSET commands to trip the OVP level, confirming that the calibration was successful. When you trip the OVP level, the red OVP LED will light and the voltage will drop to zero. Send the command RST to clear the OVP condition. Refer to the OVP program accuracy specification in Section 1.

6.Turn off calibration mode by sending the command CMODE OFF or CMODE 0 to the power supply.

54	Operating Manual for GPIB for XPD Series Power Supply

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Contents GPIB-XPD Page Internal Gpib Interface for XPD 500 Watt Series How do you get service? Phone 604 422 Toll Free North America 800 667 Fax 604 421What does this warranty not cover? Disclaimer Product Information About Your Power Supply Model Number Serial Number Purchased From Purchase DateSafety SupplyManual Revisions Installation and ConfigurationMain Sections About This Manual Contents Contents Features and Specifications DescriptionFeatures and Functions Features and SpecificationsFunctions ReadbackOVP SpecificationsModels 18-30 33-16 60-9 120-4.5 Features and Specifications Introduction Initial InspectionPower Supply Front Panel with Gpib Interface Installed Gpib Interface Subplate Located on Power Supply Rear Panel Gpib Interface PCB PON SRQ Basic Setup ProcedureStep # Description Action Reference IEEE-488 Primary Address Selection AddressSwitch Position Power on results Power On Service Request PON SRQRear Panel SRQ Switch Position PON SRQ State Condition Default Settings Model Example IsetIEEE-488 Controller Connection Internal PCB Jumper SelectionsOVP Control Mode Selection High LOW OFF User SignalsHigh OFF LOW User Signals J21 Connector J21 User Signal Connector Circuit Block Diagram J21 User Cable with Ferrite Block Operation Gpib OperationExample Command directed to entire bus, or Bit Decimal Description Reset By Position Weight Request Service SRQ Set whenPower On PON Set when unit LSBFormat Command SyntaxComputer Entry Description Form Floating Number Definition ExampleIset 2.0A Vset Command Summary AUXA? AUXB?CMODE? DLY?FAULT? CmodeIdata IHICommand Reference Command DescriptionAuxa 1 on Auxb 1 onChanging an output setting Response Fold mode where mode is Snsp Mask None = Unmask ALLStatus, and Fault Registers on Accumulated Status, Status, and Fault Registers on SNSP, ALL, NoneResponse Vmax voltage Accumulated Status, Status, and Fault Registers Condition Mnemonic Bit Position Bit WeightError Codes 11 Error CodesTroubleshooting LEDsCalibration Voltage Mode Calibration SetupVoltage Program Calibration Procedure Readback VoltageCalibration Current Program Calibration Procedure Current Mode CalibrationCurrent Calibration Setup Current Readback Calibration Procedure Over Voltage Protection OVP Calibration Page Xantrex Technology Inc