Xantrex GPIB-XPD manual

Operating Manual Internal GPIB Interface for XPD Series Programmable DC Power Supply GPIB-XPD[...]

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Operating Manual for Internal GPIB Interface for XPD 500 Watt Series Programmable DC Power Supply[...]

ii Operating Manual for GPIB for XPD Series Power Supply Limited W arranty What does this warranty cover and how long do es it last? This Limited W arranty is pro vided by Xantrex T echnology , Inc. (“Xantrex”) and covers defects in workmanship and materials in your GPIB Interfac e Card . This warranty lasts for a W arranty Period of 5 years fr[...]

Release 1.2 iii Direct returns may be performed accordi ng to the Xantrex Return Material Authorization Policy describ ed in your pr oduct manual. For some products, Xantrex maintains a network of regional Authorized Service Centers. Call Xantre x or check our website to see if your product can be repaired at one of these facilities. In any warrant[...]

iv Operating Manual for GPIB for XPD 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 AND IS, WHERE PERMIT TED BY LA W , IN LIEU OF ALL OTHER W ARRANT IES, CONDITIONS, GUARANTEES, REPRESENT A TIONS, OBLI GA TIONS AND LIABILITIES, EXPRES S O[...]

Release 1.2 v Information WITHOUT LIMITING THE GENERA LITY OF THE FOREGOING, UNLESS SPECIFICALL Y AGREED T O BY IT IN WRI TING, 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 O THER DOCUMENT A TION PROVIDED BY IT IN CONNECTION WITH THE PRODUCT ; AND b. A[...]

vi Operating Manual for GPIB for XPD Ser ies 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 Ener gy and High V olt age Exercise caution when using and calibrating a power supply . High energy levels can be stored at the output v[...]

Release 1.2 vii About This Manual This technical manual is for the internal GPIB interface, a microprocessor-controlled option card for XPD Series DC outpu t power supplies. This manual provides you with descriptions and specif ications, user options, and co nfiguration instructions, in addition to a command set wh ich enables you to manage the pow[...]

About This Manu al viii Operating Manual for GPIB for XPD Series Power Supply[...]

Release 1.2 ix Contents About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Section 1. Features and Specificati ons Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Features and Functions . . . . . [...]

Content s x Operating Manual for GPIB for XPD Series Power Supply Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Diagnostic LEDs . . . . . . . . [...]

Release 1.2 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”. The GPIB interface allows co mplete remote programmin g of your po wer supply , [...]

Features and Specifications Features and Functions 12 Operating Manual for GPIB for XPD Series Power Supply Features and Functions Features • 16-bit programming and read back of voltage an d current • Programmable soft limits for voltage and current • Programmable over volta ge protection with reset • Easy-to-use, self-docum enting command [...]

Features and Specifications Specifications Release 1.2 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. T a ble 1.1 S pecifications for XPD 500 W Series Su pply wit h GPIB Interface I nstalled Models 7.5-67 18-30 33-16 60-9 120-4.5[...]

Features and Specifications Specifications 14 Operating Manual for GPIB for XPD Series Power Supply[...]

Release 1.2 15 Section 2. Inst allation and Configuration Introduction T o use this product, you must have the following equ ipment: • a compatible model of DC output power su pply • IEEE-488 connector and cable • computer with an IEEE-488 interface • Computer-based communications software package W e usually install the GPIB interfa ce in [...]

Inst allation and Configuration Initial Inspection 16 Operating Manual for GPIB for XPD Series Power Supply Figure 2.1 Power Supply Front Panel wit h GPIB Interface Installed ! CAUTION Use proper static control techniques to av oid dama ge to static-sensitive compo nents on the printed circuit board. Service Request L ED (SRQ) Comes on at power up [...]

Inst allation and Configuration Initial Inspectio n Release 1.2 17 Figure 2.2 GPIB Interf ace Subplate (Located on Power Supply Rear Pane l) ! CAUTION Use proper static control techniques to av oid dama ge to static-sensitive compo nents on the printed circuit board S1 Switch 1 Remote/Local S tartup 2 Power On Servi ce Reques (Enable/Disabl e) 3 No[...]

Inst allation and Configuration Initial Inspection 18 Operating Manual for GPIB for XPD Series Power Supply Figure 2.3 GPIB Interface PCB JUMPER SELECTION J2 Local OVP control selection [closed] [default]. See page 23. [open] Front Panel OVP Control. J3 User TTL shutdown (S/D) selection [1-2] User TTL S/D line active low . See page 27. [2-3] [defau[...]

Inst allation and Configuration Basic Setup Procedure Release 1.2 19 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 . For those who want mo re information, each step refers to more detailed procedures located in s[...]

Inst allation and Configuration IEEE-488 Primary Address Selection 20 Operating Manual for GPIB for XPD Series Power Supply IEEE-488 Primary Address Selection 1. Assign a primary address to each power su pply: Choose a number between 0 and 30 which is unique to your IEEE-48 8 bus, that is, different from other device addresses on the same bus. 2. L[...]

Inst allation and Configuration Power On Service Request (PON SRQ) Release 1.2 21 Power On Service Request (PON SRQ) The Power ON Service Request (SRQ) switch is located on the GP IB subplate rear panel S1 switch. Enabling the SRQ switch caus es the power supply to send a service request to the computer cont roller wh en the power supply is turned [...]

Inst allation and Configuration Remote/Local Operation 22 Operating Manual for GPIB for XPD 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. During an operating session, you can toggle between local mode and remote mode by sending commands as[...]

Inst allation and Configuration IEEE-488 Controller Connection Release 1.2 23 T o return to remote mode, ensure that the REN line is asserted and then send any valid GPIB or device-depen dent command. Local Mode Operation In local mode operation, the voltage and current output levels and the OVP trip level are set with controls located on the front[...]

Inst allation and Configuration Internal PCB Jum per Selections 24 Operating Manual for GPIB for XPD Series Power Supply the front panel LOCAL switch, control of the OVP trip level changes from software control to the front panel OVP po tentiometer . The default OVP trip level is set as 1 10% of the power supply's rated output voltage. See T a[...]

Inst allation and Configuration User Signals Release 1.2 25 T a ble 2.7 Switch Settings for TTL Shut down Circuit Logic User Signals Connector J21 User Signals Auxiliary connector J21, loca ted on the GPIB interface rear panel, provides several signals to increase your operating cont rol of the supply . These signals are dependent o n the operator&[...]

Inst allation and Configuration User Signals 26 Operating Manual for GPIB for XPD Series Power Supply Figure 2.4 User Signals J21 Connector J21-1 External TTL shutdo wn input signal (See “TTL Shutdown”) J21-2 Polarity signal, open collector (asserted by VSET -x) J21-3 Isolation signal, open collector (asserted by OUT OFF) J21-4 Fault signal, op[...]

Inst allation and Configuration User Signals Release 1.2 27 Figure 2.5 J21 User Signal Connector Circuit Block Diagram J21 Cable Connection Use a standard 8-position telephone jack an d data cable to connect to J21. Add a ferrite block to reduce radiated emission . The one inch square ferrite block with built-in housing clip is pack aged and shippe[...]

Inst allation and Configuration User Signals 28 Operating Manual for GPIB for XPD Series Power Supply Figure 2.6 J21 User Cable with Ferrite Block J21 User Cable Ferrite Block T o User Custom Interface T o J21 Connector[...]

Release 1.2 29 Section 3. Operation Introduction This section covers GPIB interface progra mming, st arting with IEEE-488 functions, continuing with an extensive set of de vice-dep endent commands, and, finally , providing error codes, and status and fault register information. GPIB Operation A GPIB interface controller card enables yo u to control[...]

Operation GPIB Operation 30 Operating Manual for GPIB for XPD Series Power Supply Ta b l e 3 . 1 IEEE-488.1 Interface F unctions Implemented Multiline Control Functions The GPIB interface a nd the computer cont roller implement the Acceptor Handshake, Source Handshake, Listener , and T alker fu nctions. No user actio n is required. The unit's [...]

Operation GPIB Operation Release 1.2 31 Device T rigger Device T rigger will implement t he 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. Device T rigger is typically used to synchronize the o[...]

Operation GPIB Operation 32 Operating Manual for GPIB for XPD Series Power Supply Serial Poll In a serial poll, the controlle r polls each device. Example: The power supply responds with a 8- bit status byte defined as follows: T a ble 3.2 Serial Poll S tatus Register ibrsp Return serial poll byte. Bit Position Decimal Wei g h t Description Reset B[...]

Operation Command Syntax Release 1.2 33 Command Synt ax Manual Conventions The manual uses these conven tions when displayi ng command information. These characters are not part of the command but are used to denote parameters used with the comma nd. Command Format and Parameters The device-dependent language for the GPIB Interface consists of comm[...]

Operation Command Syntax 34 Operating Manual for GPIB for XPD 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. Example: MASK CV , OV , FOLD [...]

Operation Command Syntax Release 1.2 35 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. The termina tion character is L[...]

Operation Command Summary 36 Operating Manual for GPIB for XPD 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. See “Command Refe rence” on page 39 for more detailed information about each[...]

Operation Command Summary Release 1.2 37 T a ble 3.6 Query Commands Command Description AUXA? Asks for the state of the set value for the AUXA command AUXB? Asks for the state of the set value for the AUXB command CMODE? Asks for the power supply’ s calibration mode st atus. DL Y? Asks for the programmable time delay setting before the supply rep[...]

Operation Command Summary 38 Operating Manual for GPIB for XPD Series Power Supply T a ble 3.7 Calibration Commands T a ble 3.8 S tatus Commands Command Description CMODE Places the supply into calibration mode. IDA T A Calculates the slope and intercept for current programming. IHI Sets the current output to the high calibration point. ILO Sets th[...]

Operation Command Reference Release 1.2 39 Command Reference T a ble 3.9 Command Refe rence Command Description ASTS? Asks for the supply’s accumulate d status register . The accumulated status register stores any bit that was entered in the status register since the accumulated status query command (ASTS?) was last used, regard less of whether t[...]

Operation Command Reference 40 Operating Manual for GPIB for XPD Series Power Supply Command Description DL Y <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 [...]

Operation Command Reference Release 1.2 41 Command Description FOLD? Asks for the supply’s present foldback setting. Response: FOLD <mode> where mode is: 0 (OFF) or 1 (CV or Const ant V oltage mode) or 2 (CC or Const ant Current mode) HOLD <1/ON>,<0/OFF> Enables or disables voltage/current setting hold mode for the supply . When[...]

Operation Command Reference 42 Operating Manual for GPIB for XPD Series Power Supply Command Description IRDA T <Ilo>,<Ihi> Calculates and records the slope and of fset for readback volt age using IRLO and IRHI data. Set CMODE ON before using this command. See also the calibration procedures in Section 4. <Ilo> and <Ihi> are[...]

Operation Command Reference Release 1.2 43 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 J2 on the GPIB Interface PCB is connected for remote operation. OVSET <voltage> Sets the supply’ s ov[...]

Operation Command Reference 44 Operating Manual for GPIB for XPD Series Power Supply Command Description TRG Implements programmed volt age and current settings which had been in hold mode. The supply operates with previous values until the TRG (trigger) command is sent. UNMASK <mnemonics> Enables you to select the s upply operating condition[...]

Operation Command Reference Release 1.2 45 Command Description VMAX <voltage> Sets an upper sof t limit on the supply’s programmed output volt age. If the soft limit is exceeded, or if the sof t limit 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 a[...]

Operation Accumulated Status, S tatus, and Fault Registers 46 Operating Manual for GPIB for XPD 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. Y ou can use the status commands shown in T[...]

Operation Error Codes Release 1.2 47 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 a lso clear the ERR bit in the register . T a ble 3.1 1 Error Codes ERROR # E RROR IDENTIFICA [...]

Operation T roubleshooting 48 Operating Manual for GPIB for XPD Series Power Supply T roubleshooting Diagnostic LEDs This section describes the diagnostic LEDs found on the GPIB interface. Computer Operating Prope rly (COP) LEDs The GPIB interface provides three diagnostic LEDs, located at D5 , D4, and D1 on its PCB. Refer to Figure 2.3, ‘GPIB In[...]

Release 1.2 49 Section 4. Calibration Introduction Y ou can calibrate the GPIB interface by adjusting the signal levels on the interface card so that they correspond to the expected signal levels on the power supply's main assembly . Y ou may need to recalibrate the in terface if you replace parts either on the interface board or on the main p[...]

Calibration V oltage Mod e Calibration 50 Operating Manual for GPIB for XPD 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. Figure 4.1 V oltage Calibration Setup V oltage Program C[...]

Calibration V oltage Mode Calibration Release 1.2 51 3. Send command VRLO; IRLO to the power supply . W ait for the supply to settle. Measure and record the output shown on the external voltmet er . Send VRLO again. 4. Send VRHI; IRHI to the supply . W ait for the supply to settle. Measure and record the output voltage shown on the external voltmet[...]

Calibration Current Mode Calibration 52 Operating Manual for GPIB for XPD 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. 3. Connect a voltmeter across the shunt. Figure 4.2 Current Calibration Setup C[...]

Calibration Current Mode Calibration Release 1.2 53 Current Readback Calibration Procedure 1. Connect the curre nt shunt 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 . 3. Send command IRLO; VRLO to the power supply . W ait for the supply to settle.[...]

Calibration Over V oltage Protection (OVP) Calibration 54 Operating Manual for GPIB for XPD 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. 1. Disconnect all loads from the power suppl[...]

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