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Xantrex Technology XHR, XFR, XFR3 manual Current Readback Calibration Procedure

Models: XHR, XFR, XFR3

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Current

Readback

Calibration

Procedure

Calibration

Current Mode Calibration

1.Connect the current shunt and voltmeter to the power supply as shown in Figure 4.2.

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

3.Send command IRLO; VRLO to the power supply. Wait for the supply to settle. Measure and record the output voltage shown on the external voltmeter. Send IRLO again.

4.Send command IRHI; VRHI to the supply. Wait for the supply to settle. Measure and record the output voltage shown on the external voltmeter. Send IRHI again.

5.Calculate IRLO and IRHI from the voltages taken from the external voltmeter and the shunt resistance. I=V/R.

6.Send the command IRDAT <ilo>,<ihi> to the power supply. <ilo> and <ihi> are the current values obtained from sending the IRLO and IRHI commands to the power supply. When the power supply is calibrated, the low to high current readback calibration values are stored as constants.

7.Program the supply at various levels using the ISET command to confirm that the calibration was successful and that linearity is observed. Refer to the current readback accuracy specification in Section 1.

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

Release 3.1

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Xantrex Technology XHR, XFR, XFR3 manual Current Readback Calibration Procedure

Contents

Operating Manual GPIB-XHR GPIB-XFR GPIB-XFR3Page Operating Manual for Programmable DC Power SuppliesLimited Warranty How do you get service?Proof of purchase may be in any one of the following forms Disclaimer Product WARNING Limitations on Use Information About Your Power SupplySupply PowerSafety Warnings Cautions and NotesAbout This Manual Main SectionsManual Revisions About This Manual Operating Manual for GPIB for XHR/XFR Series Power SupplyConfiguration Section Operation ContentsSection Features and Specifications Section Installation and Contents Description Section 1. Features and SpecificationsFunctions Features and FunctionsFunctions Readback7.5-140 SpecificationsFeatures and Specifications Models100-12 Features and SpecificationsModels 60-2012-220 Features and SpecificationsModels 7.5-300100-28 Features and SpecificationsModels 60-4620-50 Features and SpecificationsModels 7.5-130150-7 Features and SpecificationsModels 100-10Initial Inspection Section 2. Installation and ConfigurationIntroduction Remote Programming LEDs activated. See “Connector J7 User Signals” on pageInstallation and Configuration Initial InspectionInitial Inspection Installation and ConfigurationFigure 2.2 GPIB Interface Subplate Located on Power Supply Rear Panel JUMPER SELECTION Installation and ConfigurationLED INDICATORS Initial InspectionBasic Setup Procedure IEEE-488 Primary Address Selection Remote/Local Operation Power On Service Request PON SRQparticular GPIB controller interface installed on your computer Put the controller in charge by sending an Interface Address the unit devname or device name asSend commands UNL, UNT, MTA0, LLO in IEEE-488 Controller ConnectionInternal PCB Jumper Selections Internal PCB Jumper Selections Figure 2.4 User Signals J7 Connector User SignalsTo install the ferrite block Figure 2.6 J7 User Cable with Ferrite Block Installation and ConfigurationUser Signals Introduction Section 3. OperationGPIB Operation Example Example Then useExample Example Serial Poll In a serial poll, the controller polls each deviceMASK FOLD ≠ MASK FD Command SyntaxMASK FOLD = mask fold MASK FOLD ≠ MK FOLDForm Command SyntaxOperation DescriptionExample COMMAND parameter COMMAND parameter, parameterLFDescription Command SummaryOperation Description Query CommandsOperation Description Calibration CommandsOperation DescriptionOperation Command Referenceread. See “Accumulated Status, Status, and Fault Registers” on page CommandDescription Commandbeen masked using the MASK command, then the ERR bit in the registers OperationDescription CommandOperation Description Status, and Fault Registers” on page 50. Mnemonics are separated fromCommand OperationOperation switch on the supply. See “Power On Service Request PON SRQ” onStatus, and Fault Registers” on page CommandRegisters” on page “Accumulated Status, Status, and Fault Registers” on pagestatus and fault registers See “Accumulated Status, Status, and Fault CommandDescription CommandOperation Example Accumulated Status, Status, and Fault RegistersBit Weight OperationERROR IDENTIFICATION Error CodesTable 3.11 Error Codes ERROR #LEDs TroubleshootingIntroduction Section 4. CalibrationVoltage Mode Calibration SetupVoltage Program Calibration Procedure Voltage Readback Calibration ProcedureVoltage Mode Calibration CalibrationCurrent Mode Calibration Current Calibration SetupCurrent Program Calibration Procedure Current Readback Calibration Procedure Over Voltage Protection OVP Calibration Page 800 667 8422 Toll Free North America prg.info@xantrex.com Xantrex Technology Inc8999 Nelson Way Burnaby, British Columbia Canada V5A 4B5 604 422 8595 Tel 604 421 3056 Fax