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Operating Manual Internal GPIB Interface for XHR/XFR Series Programmable DC Power Supplies GPIB-XHR GPIB-XFR GPIB-XFR3.
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Operating Manual for Internal GPIB Interface for XHR 1000 Watt Series, XFR 1200 Watt Series and XFR 2800 Watt Series Programmable DC Power Supplies.
ii Operating Manual for GPIB for XHR/XFR Series Power Supply Limited W arranty What does this warranty cover and how long does it last? This Limited W arranty is provid ed by Xantrex T echnology , Inc. (“Xantrex”) and covers defects in workmanship and materials in your GPIB Interface Car d .
Release 3.1 iii Direct returns may be performed accordi ng to the Xantrex Return Material Authorization Policy described in your pr oduct manu al. For some products, Xantrex maintains a network of regional Authorized Service Centers. Call Xantrex or check our website to see if your product can be repaired at one of these facilities.
iv Operating Manual for GPIB for XHR/XFR Series Power Supply Disclaimer Product THIS LIMITED W ARRANTY IS THE SOLE AND EXCLUSIVE W ARRANTY PROVIDED BY XANTREX IN CONNECTION WITH YO UR XANTREX PRODUCT .
Release 3.1 v Information WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, UNLESS SPECIFICALL Y AGREED TO BY IT IN WRITING, XANTREX a. MAKES NO W ARRANTY AS TO THE ACCU RACY , SUFFICIENCY OR SUIT ABILITY OF ANY TECHNICAL OR O THER INFORMA TION PROVIDED IN MANUALS OR OT HER DOCUMENT A TION PROVIDED BY IT IN CONNECTION WITH THE PRODUCT ; AND b.
vi Operating Manual for GPIB for XHR/XFR Series Power Supply Power Supply Safety W arnings, Cautions, and Notes W arnings, cautions, and notes are defined and formatted in this manual as shown below . W ARNING—High Energy and High V oltage Exercise caution when using and calibrating a power supply .
Release 3.1 vii About This Manual This technical manual is for the internal GPIB interface, a microprocessor-controlled option card for XHR Series and XFR Series DC output power supplies.
About This Manu al viii Operating Manual for GPIB for XHR/XFR Series Power Supply.
Release 3.1 ix Contents About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Section 1. Features and Specifications Description . . . . . . . . . . . . . . . . . . . . . . . . . . .
Content s x Operating Manual for GPIB for XHR/XFR Series Power Supply Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Accumulated Status, Status, and Fault Registers . . . . . . . .
Release 3.1 11 Section 1. Features and S pecifications Description The internal GPIB interface card allows you to operate your power supply from a computer controller via the IEEE-488 commun ications bus. See Figure 1.1, “Sample Configuration using GPIB Interface”.
Features and Specifications Features and Functions 12 Operating Manual for GPIB for XHR/XFR Series Power Supply Features and Functions Features • 16-bit programming and read back of voltage and curr.
Features and Specifications Specifications Release 3.1 13 Specifications The specifications in this section are warranted at 25°C ±5°C unless otherwise specified. All specifications are subject to change without notice. Ta b l e 1 . 1 S pecifications for XFR 1200 W Series Supply wi th GPIB Interface Inst alled (7.
Features and Specifications Specifications 14 Operating Manual for GPIB for XHR/XFR Series Power Supply Ta b l e 1 . 2 S pec ifications for XFR 1200 W Ser ies Supply w i th GPIB Interface Inst alled (60 V to 600 V) Models 60-20 100-12 150-8 300-4 600-2 Program Resolution V oltage Current OVP 9.
Features and Specifications Specifications Release 3.1 15 Ta b l e 1 . 3 S pecifications for XFR 2800 W Series Supply with GPIB Interface In stalled (7.5 V to 40 V) Models 7.5-300 12-220 20-130 33-85 40-70 Program Resolution V oltage Current OVP 1.16mV 42.
Features and Specifications Specifications 16 Operating Manual for GPIB for XHR/XFR Series Power Supply Ta b l e 1 . 4 S pec ifications for XFR 2800 W Ser ies Supply w i th GPIB Interface Inst alled (60 V to 600 V) Models 60-46 100-28 150-18 300-9 600-4 Program Resolution V oltage Current OVP 9.
Features and Specifications Specifications Release 3.1 17 T able 1.5 S pecifications for X HR 1000 W Series Supply with GPIB Interface Installed (7.5 V to 60 V) Models 7.5-130 20-50 33-33 40-25 60-18 Program Resolution V oltage Current OVP 1.16mV 42.0m A 1.
Features and Specifications Specifications 18 Operating Manual for GPIB for XHR/XFR Series Power Supply T able 1.6 S pecifications for XHR 1000 W Series Supply with GPIB Interface Installed (100 V to 600 V) Models 100-10 150-7 300-3.5 600-1.7 Program Resolution V oltage Current OVP 15.
Release 3.1 19 Section 2. Inst allation and Configuration Introduction T o use this product, you must have the following equipment: • a compatible model of DC output power suppl y • IEEE-488 conne.
Installa tion and Configuration Initial Inspection 20 Operating Manual for GPIB for XHR/XFR Series Power Supply Figure 2.1 Power Supply Front Panel with GPIB Interface Inst alled (1200 W att Power Supply Shown) ! CAUTION Use proper static control techniques to av oid damage to static-sensitive components on the printed circuit board.
Inst allation and Configuration Initial Inspection Release 3.1 21 Figure 2.2 GPIB Interfac e Subplate (Located on Power Supply Rear Panel) ! CAUTION Use proper static control techniques to av oid damage to static-sensitive components on the printed circuit board Error LED (ERR) Indicates that a programmi ng error has occurred.
Installa tion and Configuration Initial Inspection 22 Operating Manual for GPIB for XHR/XFR Series Power Supply Figure 2.3 GPIB Interface PCB JUMPER SELECTION J65 Local OVP control selection [closed] [default]. See page 28. [open] Front Panel OVP Control.
Inst allation and Configuration Basic Setup Procedure Release 3.1 23 Basic Setup Procedure This procedure can be used as a quick reference for those familiar with the configuration requirements for the GPIB interface as installed in the DC power supply .
Installa tion and Configuration IEEE-488 Primary Address Selection 24 Operating Manual for GPIB for XHR/XFR Series Power Supply IEEE-488 Primary Address Selection 1. Assign a primary address to each power supp ly: Choose a number between 0 and 30 which is unique to your IEEE-488 bus, tha t is, different from other device addresses on the same bus.
Inst allation and Configuration Power On Service Request (PON SRQ) Release 3.1 25 Power On Service Request (PON SRQ) The Power ON Service Request (SRQ) switch is located on the GP IB subplate rear panel S1 switch.
Installa tion and Configuration Remote/Local Operation 26 Operating Manual for GPIB for XHR/XFR Series Power Supply If the rear panel PON REM switch is set to 1, the power supply will power up in local mode. Power supply co ntrol is at the front panel.
Inst allation and Configuration Remote/Local Operation Release 3.1 27 While in remote mode, you can change to local mode operation by pressing the front panel LOCAL b utton, by sending the GPIB G TL (Go to Local) command, or by negating the GPIB REN (Remote Ena b le) line.
Installa tion and Configuration IEEE-488 Controller Connection 28 Operating Manual for GPIB for XHR/XFR Series Power Supply Note : T o disa ble Local Lockout, use the IB IC ibsre0 command in this example.
Inst allation and Configuration Internal PCB Jumper Selections Release 3.1 29 Control Mode Selection” shows a table of jumper settings and OVP programming selection. Refer to “Basic Setup Procedure” on page 23 for the positions of the jumpers on the GPIB PCB.
Installa tion and Configuration User Signals 30 Operating Manual for GPIB for XHR/XFR Series Power Supply User Signals Connector J7 User Signals Auxiliary connector J7, loca ted on the GPIB interface r ear panel, pr ovides several signals to increase your operating cont rol of the s upply .
Inst allation and Configuration User Signals Release 3.1 31 Figure 2.5 J7 User Signal Connecto r Circuit Block Diagram J7 Cable Connection Use a standard 8-position telephone jack and data cable to connect to J7. Add a ferrite block to reduce radiated emission .
Installa tion and Configuration User Signals 32 Operating Manual for GPIB for XHR/XFR Series Power Supply Figure 2.6 J7 User Cab le with Ferrite Block J7 User Cable Ferrite Block T o User Custom Inter.
Release 3.1 33 Section 3. Operation Introduction This section covers GPIB interface progra mming, starting with IEEE-488 functions, continuing with an extensive set of de vice-depen dent commands, and, finally , providing error codes, and status and fault register information.
Operation GPIB Operation 34 Operating Manual for GPIB for XHR/XFR Series Power Supply Ta b l e 3 . 1 IEEE-488.1 Interface F unctions Implemented Multiline Control Functions The GPIB interface and the computer cont roller implement the Acceptor Handshake, Source Handshake, Listener , and T alker fu nctions.
Operation GPIB Operation Release 3.1 35 Device T rigger Device T rigger will implement the most recently programmed values whether the unit is in local or remote co ntrol. If the power supply is in local mode, the new values will be implemented when it is switched from local to remote control.
Operation GPIB Operation 36 Operating Manual for GPIB for XHR/XFR Series Power Supply Service Request Service request is a uniline message asserted by the power supply at power on and for fault conditions. T en (10) power supply conditions are defined as faults: CV , CC, OV , OTP , SD, FOLD, ERR, ACF , OPF , and SNSP .
Operation Command Syntax Release 3.1 37 Command Synt ax Manual Conventions The manual use s these convention s when displaying command informatio n. These characters are not part of the command but are used to denote parame ters used with the command.
Operation Command Syntax 38 Operating Manual for GPIB for XHR/XFR Series Power Supply • Use commas between parameters in th ose commands with more than one parameter , and between mnemonic para meters as in the MASK and UNMASK commands. Only one comma is allowed and it may be preceded or followed by any number of spaces.
Operation Command Syntax Release 3.1 39 Command Strings If you send more than one command line, separate the commands with a semicolon. The semicolon may be preceded or followed by spaces. Example: Command T erminators T erminators indicate the end of a command string and tell the power supply to execute the command.
Operation Command Summary 40 Operating Manual for GPIB for XHR/XFR Series Power Supply Command Summary Use these commands to control the opera tion of the supply . They are listed here in order of function such as PROGRAMMING , QUER Y , CALIBRA TION, and ST A TUS commands.
Operation Command Summary Release 3.1 41 T able 3.6 Query Commands Command Description AUXA? A sks for the state of the set value for the AUXA command AUXB? A sks for the state of the set value for the AUXB command CMODE? Asks for the power supply’s calibration mode st atus.
Operation Command Summary 42 Operating Manual for GPIB for XHR/XFR Series Power Supply T able 3.7 Calibration Commands T able 3.8 S tatus Commands Command Description CMODE P laces the supply into calibration mode. IDA T A Calculates the slope and intercept for current programming.
Operation Command Reference Release 3.1 43 Command Reference T able 3.9 Command Refere nce Command Description ASTS? Asks for the supply’s accumulated st atus register .
Operation Command Reference 44 Operating Manual for GPIB for XHR/XFR Series Power Supply Command Description DL Y <seconds> Sets a programmable time delay employed by the supply before reporting fault conditions.
Operation Command Reference Release 3.1 45 Command Description FOLD? Asks for the supply’s present foldback setting. Response: FOLD <mode> where mode is: 0 (OFF) or 1 (CV or Constant V oltage mode) or 2 (CC or Constant Current mode) HOLD <1/ON>,<0/OFF> Enables or disables voltage/current setting hold mode for the supply .
Operation Command Reference 46 Operating Manual for GPIB for XHR/XFR Series Power Supply Command Description IRDA T <Ilo>,<Ihi> Calculates and records the slope and of fset for readback voltage using IRLO and IRHI data. Se t CMODE ON before using this command.
Operation Command Reference Release 3.1 47 Command Description OVCAL Causes the master controller to perform automatic calibration of the supply’s over volt age protection circuitry . Set CMODE O N before using this command. Ensure jumper J65 on the GPIB Interface PCB is connected for remote operation.
Operation Command Reference 48 Operating Manual for GPIB for XHR/XFR Series Power Supply Command Description TRG Implements programmed voltage an d current settings which had been in hold mode. The supply operates with previous values until the TRG (trigger) command is sent.
Operation Command Reference Release 3.1 49 Command Description VMAX <voltage> Sets an upper sof t limit on the supply’s programmed output volt age.
Operation Accumulated Status, S tatus, and Fault Registers 50 Operating Manual for GPIB for XHR/XFR Series Power Supply Accumulated S t atus, S t atus, and Fault Registers The GPIB option card uses three separate registe rs which are always active. They are the accumulated status, status, and fault registers.
Operation Error Codes Release 3.1 51 Error Codes If the ERR flag in the accumulated status or fault registers has been activated, an ERR? query will return an error number which corresponds to an event described in the following table. The ERR? query will also clear the ERR bit in the register .
Operation T roubleshooting 52 Operating Manual for GPIB for XHR/XFR Series Power Supply T roubleshooting Diagnostic LEDs This section describes the diagnostic LEDs found on the GPIB interface. Computer Operating Properly (COP) LEDs The GPIB interface provides three diagnostic LEDs, locate d at CR167, CR166, and CR89 on its PCB.
Release 3.1 53 Section 4. Calibration Introduction Y ou can calibrate the GPIB interface by adjusting the signal leve ls on the interface card so that they correspond to the expec ted signal levels on the power supply's main assembly .
Calibration V oltage Mode Calibration 54 Operating Manual for GPIB for XHR/XFR Series Power Supply V olt age Mode Calibration V oltage Calibration Setup 1. Disconnect the load from the power su pply which is to be calibrated. 2. Connect a voltmeter across the po wer supply’ s output terminals.
Calibration V oltage Mode Calibration Release 3.1 55 3. Send command VRLO; I RLO to the power supply . W ait for the supply to settle. Measure and record the output shown on the external voltmeter . Send V RLO again. 4. Send VRHI; IRHI to the supply .
Calibration Current Mode Calibration 56 Operating Manual for GPIB for XHR/XFR Series Power Supply Current Mode Calibration Current Calibration Setup 1. Disconnect the load from the po wer supply to be calibrated. 2. Connect a shunt across the supply's output terminals.
Calibration Current Mode Calibration Release 3.1 57 Current Readback Calibration Procedure 1. Connect the current sh unt and voltmeter to the power supply as shown in Figure 4.2. 2. Activate calibration mode by sendi ng command CMODE ON or CMODE 1 to the power supply .
Calibration Over V oltage Protection (OVP) Calibration 58 Operating Manual for GPIB for XHR/XFR Series Power Supply Over V oltage Protection (OVP) Calibration W e recommend that you perform OVP ca libration every six mon ths. Connecting a digital voltmeter as in “V oltage Calibration Setu p” is optional.
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