Xantrex Technology GPIB-XPD manual Voltage Mode Calibration, Setup

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Calibration

Voltage Mode Calibration

Voltage Mode Calibration

Voltage	1.	Disconnect the load from the power supply which is to be calibrated.
Calibration	2.	Connect a voltmeter across the power supply’s output terminals.
Setup
			Power Supply			Power Supply
			Positive Output			Negative Output

Voltage

Program

Calibration

Procedure

Voltage

Readback

Calibration

Procedure

+V -

VOLTMETER

Figure 4.1 Voltage Calibration Setup

1.Set the power supply for calibration as in Figure 4.1.

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

3.Send command VLO; ILO to the power supply. Measure and record the output shown on the external voltmeter.

4.Send command VHI; IHI to the supply. Measure and record the output voltage as shown on the external voltmeter.

5.Send the command VDATA <vlo>,<vhi> where <vlo> and <vhi> are the values read from the voltmeter when the VLO and VHI commands were sent. When the power supply is calibrated, the low to high voltage program calibration values are stored as constants.

6.Program the supply at various levels using the VSET command to confirm that the calibration was successful and that linearity is observed. See the voltage program accuracy specification in Section 1.

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

1.Set the power supply for calibration as in Figure 4.1.

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

50	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 SupplyMain Sections Installation and ConfigurationManual Revisions About This Manual Contents Contents Features and Specifications DescriptionFeatures and Functions Features and SpecificationsFunctions ReadbackModels 18-30 33-16 60-9 120-4.5 SpecificationsOVP 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 Step # Description Action Reference Basic Setup ProcedurePON SRQ IEEE-488 Primary Address Selection AddressRear Panel SRQ Switch Position PON SRQ State Power On Service Request PON SRQSwitch Position Power on results Condition Default Settings Model Example IsetIEEE-488 Controller Connection Internal PCB Jumper SelectionsOVP Control Mode Selection High OFF LOW User SignalsHigh LOW OFF 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 LSBComputer Entry Command SyntaxFormat 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 Calibration Setup Current Mode CalibrationCurrent Program Calibration Procedure Current Readback Calibration Procedure Over Voltage Protection OVP Calibration Page Xantrex Technology Inc