Xantrex Technology RS232-XPD manual Voltage Readback Calibration Procedure

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Voltage

Readback

Calibration

Procedure

Calibration

Voltage Mode Calibration

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

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

5.Send the command VRDAT <vlo>,<vhi> where <vlo> and <vhi> are the values read from the voltmeter after the VRLO and VRHI commands were sent. The processor calculates the offset value required to calibrate the power supply.

When the power supply is calibrated, the low to high voltage readback calibration values (offsets) are stored as constants.

6.Use commands VSET and VOUT? commands to confirm that the calibration was successful and that linearity is observed. Refer to the voltage readback accuracy specification in Section 1.

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

Release 1.2

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Contents RS232-XPD Page Internal RS-232 Interface for XPD 500 Watt Series Phone 604 422 Toll Free North America 800 667 Fax 604 421 How do you get service?What does this warranty not cover? Disclaimer Product Model Number Serial Number Purchased From Purchase Date Information About Your Power SupplySupply SafetyManual Revisions Main SectionsAbout This Manual Contents Contents Description Features and SpecificationsReadback Functions Features and FunctionsFeatures Features and SpecificationsModels 18-30 33-16 60-9 120-4.5 SpecificationsFeatures and Specifications Initial Inspection IntroductionInitial Inspection Installation and ConfigurationRS-232 Interface Subplate Located on Power Supply Rear Panel RS-232 Interface PCB Step # Description Action Reference Basic Setup ProcedureCommunications Flow Switch Setting ConditionBaud Rate Jumper Connections RS-232 Connector Pin XON Switch Setting ConditionJumper J10 Connections RS-232 Connector Pin Power Supply DCE Host Computer DTE Pin connectorRemote Switch Position Power on resultsStartup Iset Condition Default Settings Model ExampleExample RS-232 Connection RS-232 Connector J4 Pinouts default configurationParameter Setting Power Supply Settings12 OVP Control Mode Selection User Options and SettingsHigh OFF LOW User Signals J21 Connector User SignalsJ21 User Signal Connector Circuit Block Diagram J21 User Cable with Ferrite Block RS-232 Operation Command SyntaxFormat OperationFloating Number Definition Example Parameter Description FormOperation Command Description Command SummaryAUXA? Cmode Auxa 1 on Command ReferenceResponse DLY seconds Lockout. See also Remote/Local Operation on Snsp Remote/Local Operation on Status, and Fault Registers on Section Accumulated Status, Status, and Fault Registers 4096 Condition Mnemonic Bit Position Bit WeightError # Error Identification Explanation Error CodesLEDs TroubleshootingCalibration Voltage Voltage Mode CalibrationSetup Voltage Program Calibration ProcedureVoltage Readback Calibration Procedure Current Calibration Setup Current Mode CalibrationCurrent Program Calibration Procedure Current Readback Calibration Procedure Over Voltage Protection OVP Calibration Page Xantrex Technology Inc