Xantrex Technology GPIB-XPD manual Changing an output setting

Page 42

Operation

Command Reference

Command

Description

DLY <seconds>

Sets a programmable time delay employed by the supply before reporting

 

fault conditions. The power supply uses the time delay after receiving a new

 

output voltage or current setting via VSET or ISET, or after receiving RST,

 

TRG, or OUT ON commands. During the time delay, the power supply

 

disables CV, CC, and FOLD conditions from generating faults, preventing

 

possible nuisance foldback if the supply momentarily switches modes while

 

changing an output setting.

 

Range: 0 to 32 seconds, with 32ms resolution

 

Initial value: 0.5 second

 

 

DLY?

Asks for the setting of the programmable time delay before the supply

 

reports fault conditions.

 

Response: DLY <seconds>

 

 

ERR?

Asks for the most recent remote programming error. When the power

 

supply detects a programming error, it lights the ERR LED and sets the

 

ERR bit in the accumulated status and fault registers. If the error bit has

 

been masked using the MASK command, then the ERR bit in the registers

 

will not set. Once an error is detected, the remaining portion of the

 

command line is discarded. An error query clears the ERR bit in the

 

accumulated status register. See “Error Codes” on page 47.

 

Response: ERR <error number> Example: ERR 0 (if no error)

FAULT?

Asks for the state of the fault register. A bit is set in the fault register when a

 

fault arises for that condition. Lists the conditions which activate a fault bit.

 

You can use the MASK command to disable bits from being set in the fault

 

register.

 

When a bit is set in the fault register it also asserts a signal on the J21-4

 

user signal line. You can tie the J21-4 fault line signal to the power supply's

 

own External Shutdown user line, J21-1, so that the shutdown signal goes

 

low (active) in the case of a user-defined fault.

 

The FAULT? query clears bits in the supply's fault register and fault line.

 

Response: FAULT <fault mask> where fault mask is the decimal equivalent

 

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

 

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

 

46.

FOLD

Sets foldback mode for the supply. Foldback protection disables the power

<2/CC>, <1/CV>,

supply output when the output enters the fold condition. Reset with the RST

<0/OFF>

command.

 

Example: Specify FOLD 1 or FOLD CV (Constant Voltage) when you want

 

the supply to operate in Constant Current mode and have foldback

 

protection disable the output if the supply switches to Constant Voltage

 

mode.

 

Initial value: FOLD 0/OFF

40

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 SupplyInstallation and Configuration Main SectionsManual Revisions About This Manual Contents Contents Features and Specifications DescriptionFunctions Features and FunctionsFeatures and Specifications ReadbackSpecifications Models 18-30 33-16 60-9 120-4.5OVP 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 Basic Setup Procedure Step # Description Action ReferencePON SRQ IEEE-488 Primary Address Selection AddressPower On Service Request PON SRQ Rear Panel SRQ Switch Position PON SRQ StateSwitch Position Power on results Condition Default Settings Model Example IsetIEEE-488 Controller Connection Internal PCB Jumper SelectionsOVP 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 Operation Gpib OperationExample Command directed to entire bus, or Power On PON Set when unit Bit Decimal Description Reset By Position WeightRequest Service SRQ Set when LSBCommand Syntax Computer EntryFormat Description Form Floating Number Definition ExampleIset 2.0A Vset Command Summary CMODE? AUXA?AUXB? DLY?Idata FAULT?Cmode IHIAuxa 1 on Command ReferenceCommand Description 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 Program Calibration Procedure Readback Voltage Mode CalibrationSetup 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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