Xantrex Technology GPIB-XPD manual Status, and Fault Registers on

Page 45

 

Operation

 

Command Reference

 

 

 

Command

Description

 

OVCAL

Causes the master controller to perform automatic calibration of the

 

supply’s over voltage protection circuitry. Set CMODE ON before using this

 

command. Ensure jumper J2 on the GPIB Interface PCB is connected for

 

remote operation.

 

OVSET <voltage>

Sets the supply’s over voltage protection trip point in volts (default) or in

 

millivolts. If the trip point is exceeded, or if the trip point value is lower than

 

the present output voltage setting, the supply will ignore the command, turn

 

on the ERR LED, and set the ERR bit in the accumulated status register.

 

Reset with the RST command.

 

Range: 0 to 110% of model maximum output voltage (VMAX)

 

Initial value: 110% of model VMAX

 

OVSET?

Asks for the supply’s present over voltage protection limit.

 

Response: OVSET <voltage>

 

ROM?

Asks for the version number of the master and slave EPROMs located on

 

the interface PCB.

 

Response: ROM M:<version> S:<version>

 

RST

Resets the supply to present voltage and current settings if the output is

 

disabled by over voltage or foldback protection. Output values may be

 

changed via VSET, ISET, and OVSET while the unit is disabled, but those

 

values will not take effect until RST is applied.

 

SRQ <1/ON>,<0/OFF>

SRQ ON enables the supply to respond to a variety of fault conditions with a

 

request for service to the IEEE-488 bus controller. With SRQ ON, the SRQ

 

line will be asserted true whenever the FAU bit in the supply's serial poll

 

register changes from 0 to 1. Therefore, the mask register, in addition to

 

specifying which conditions set the FAU bit, also determines which

 

conditions can generate service requests. Ten power supply conditions are

 

defined as faults: CB, CC, OV, OTP, SD, ERR, FOLD, ACF, OPF, SNSP.

 

Use the FAULT? query to discover which condition caused the service

 

request. See “Accumulated Status, Status, and Fault Registers” on page

 

46. A request for service at Power ON (PON SRQ) is set via a rear panel

 

switch on the supply. See “Power On Service Request (PON SRQ)” on

 

page 21. SRQ remains disabled until the FAULT bit in the serial poll register

 

is cleared by a FAULT? query.

 

SRQ?

Asks for the supply's present ability to generate service requests.

 

Response: SRQ 0 (disabled)

 

SRQ 1 (enabled)

 

 

 

STS?

Asks for the supply’s present status register. Status conditions are stored in

 

the status register. Each bit represents a separate condition. When the

 

condition is true, the corresponding bit is 1 (true). Bits remain set in the

 

status register as long as the condition is true. See “Accumulated Status,

 

Status, and Fault Registers” on page 46.

 

Response: STS <status mask> where status mask is the decimal equivalent

 

of the total bit weights for the operating conditions as listed in the status

 

register.

 

Release 1.2

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Contents GPIB-XPD Page Internal Gpib 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 SafetyInstallation and Configuration Main SectionsManual Revisions About This Manual Contents Contents Description Features and SpecificationsFeatures and Specifications Features and FunctionsFunctions ReadbackSpecifications Models 18-30 33-16 60-9 120-4.5OVP Features and Specifications Initial Inspection IntroductionPower Supply Front Panel with Gpib Interface Installed Gpib Interface Subplate Located on Power Supply Rear Panel Gpib Interface PCB Basic Setup Procedure Step # Description Action ReferencePON SRQ Address IEEE-488 Primary Address SelectionPower On Service Request PON SRQ Rear Panel SRQ Switch Position PON SRQ StateSwitch Position Power on results Iset Condition Default Settings Model ExampleInternal PCB Jumper Selections IEEE-488 Controller ConnectionOVP Control Mode Selection User Signals High OFF LOWHigh LOW OFF User Signals J21 Connector J21 User Signal Connector Circuit Block Diagram J21 User Cable with Ferrite Block Gpib Operation OperationExample Command directed to entire bus, or Request Service SRQ Set when Bit Decimal Description Reset By Position WeightPower On PON Set when unit LSBCommand Syntax Computer EntryFormat Floating Number Definition Example Description FormIset 2.0A Vset Command Summary AUXB? AUXA?CMODE? DLY?Cmode FAULT?Idata IHICommand Description Command ReferenceAuxa 1 on Auxb 1 on Changing an output setting Response Fold mode where mode is Mask None = Unmask ALL SnspStatus, and Fault Registers on SNSP, ALL, None Accumulated Status, Status, and Fault Registers onResponse Vmax voltage Condition Mnemonic Bit Position Bit Weight Accumulated Status, Status, and Fault Registers11 Error Codes Error CodesLEDs TroubleshootingCalibration Setup Voltage Mode CalibrationVoltage Program Calibration Procedure Readback VoltageCalibration Current Mode Calibration Current Calibration SetupCurrent Program Calibration Procedure Current Readback Calibration Procedure Over Voltage Protection OVP Calibration Page Xantrex Technology Inc
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