Xantrex Technology GPIB-XPD manual OVP Control Mode Selection

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Installation and Configuration

Internal PCB Jumper Selections

the front panel LOCAL switch, control of the OVP trip level changes from software control to the front panel OVP potentiometer. The default OVP trip level is set as 110% of the power supply's rated output voltage. See Table 2.5, on page 22 for a complete list of remote power ON default settings.

You can isolate the location of OVP control by changing the positions of the Local OVP Control jumper J2 and the Remote OVP Control jumper J20. The default jumper settings allow control of OVP to depend on the operating state of the power supply. By physically changing the jumper settings, you can isolate the location of OVP control to software control only or front panel control only. Table 2.6, “OVP Control Mode Selection” shows a table of jumper settings and OVP programming selection. Refer to “Basic Setup Procedure” on page 19 for the positions of the jumpers on the GPIB PCB.

Table 2.6 OVP Control Mode Selection

PCB Jumper J2

PCB Jumper

OVP Programming Selection

Position

J20 Position

 

Closed (default)

Closed (default)

Software or Front Panel OVP control

 

 

(dependent on the power supply operating state)

Closed

Open

Software OVP control only

Open

Closed

Front Panel OVP control only

Open

Open

Front Panel OVP control only

TTL You can use the Shutdown function to disable or enable the supply's output. Shutdown Disabling the supply using TTL shutdown allows you to make adjustments to the

load or to the power supply without shutting down the power supply. With the GPIB interface installed, TTL shutdown is activated by a TTL signal to Pin 1 of the J21 connector on the interface subplate. The shutdown user line uses a 0-5Vdc TTL input with a high signal range of 2.2-5.0Vdc. The current range of the shutdown line is 1-10mA. See Figure 2.5, “J21 User Signal Connector Circuit Block Diagram” on page 27 for a schematic of the J21 connector containing the shutdown user line.

You can select the logic level of the TTL input by changing the J3 connector on the GPIB PCB. Table 2.7 shows the TTL signal levels for the J3 jumper settings. See Figure 2.2-3 for the location of the J3 jumper on the printed circuit board.

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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 SupplyManual Revisions Installation and ConfigurationMain Sections About This Manual Contents Contents Features and Specifications DescriptionFunctions Features and FunctionsFeatures and Specifications ReadbackOVP SpecificationsModels 18-30 33-16 60-9 120-4.5 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 PON SRQ Basic Setup ProcedureStep # Description Action Reference IEEE-488 Primary Address Selection AddressSwitch Position Power on results Power On Service Request PON SRQRear Panel SRQ Switch Position PON SRQ State Condition Default Settings Model Example IsetIEEE-488 Controller Connection Internal PCB Jumper SelectionsOVP Control Mode Selection High LOW OFF User SignalsHigh OFF LOW 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 LSBFormat Command SyntaxComputer Entry 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 Program Calibration Procedure Current Mode CalibrationCurrent Calibration Setup Current Readback Calibration Procedure Over Voltage Protection OVP Calibration Page Xantrex Technology Inc
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