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Operating Manual

Internal GPIB Interface
for XHR/XFR Series
Programmable DC
Power Supplies

GPIB-XHR

GPIB-XFR

GPIB-XFR3

Summary of Contents for XHR

Page 1: ...Operating Manual Internal GPIB Interface for XHR XFR Series Programmable DC Power Supplies GPIB XHR GPIB XFR GPIB XFR3...

Page 2: ......

Page 3: ...Operating Manual for Internal GPIB Interface for XHR 1000 Watt Series XFR 1200 Watt Series and XFR 2800 Watt Series Programmable DC Power Supplies...

Page 4: ...ht to use parts or products of original or improved design in the repair or replacement If Xantrex repairs or replaces a product its warranty continues for the remaining portion of the original Warran...

Page 5: ...e product exchanged under warranty What does this warranty not cover This Limited Warranty does not cover normal wear and tear of the product or costs related to the removal installation or troublesho...

Page 6: ...NT WILL XANTREX BE LIABLE FOR ANY SPECIAL DIRECT INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES LOSSES COSTS OR EXPENSES HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING WITHOUT RESTRICTION ANY ECO...

Page 7: ...ur product user manual for limitations on uses of the product Specifically please note that this power supply is not intended for use in connection with life support systems and Xantrex makes no warra...

Page 8: ...nergy for some time after power is removed CAUTION Operate the power supply in an environment free of flammable gases or fumes To ensure that the power supply s safety features are not compromised use...

Page 9: ...nnections and any changes in switch settings The user should also have experience with a computer based communications software package Refer to your power supply manual for installation configuration...

Page 10: ...About This Manual viii Operating Manual for GPIB for XHR XFR Series Power Supply...

Page 11: ...25 Remote Local Mode Startup 25 Remote Mode Operation 26 Local Mode Operation 27 Setting Local Lockout 27 IEEE 488 Controller Connection 28 Internal PCB Jumper Selections 28 OVP Selection 28 TTL Shutd...

Page 12: ...gnostic LEDs 52 Section 4 Calibration Introduction 53 Voltage Mode Calibration 54 Voltage Calibration Setup 54 Voltage Program Calibration Procedure 54 Voltage Readback Calibration Procedure 54 Curren...

Page 13: ...th user designated fault conditions Both the voltage and current output are precisely programmed directly in volts and amps with 16 bit resolution Additionally the built in DVM and current shunt measu...

Page 14: ...sed service request over voltage protection and remote operation Foldback in CV or CC mode with reset Local Lockout capability Software calibration Programmable Functions Output voltage and current So...

Page 15: ...4mA 5 4mV 6 2mV 4 2mA 6 2mV Program Accuracy1 Voltage Current OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model 20 60 power supply to 10 volt...

Page 16: ...rrent OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model 20 60 power supply to 10 volts The expected result will be within the range of 10 volt...

Page 17: ...0mA 0 1 80mV 50mV 0 12 750mA 0 1 150mV 75mV 0 12 500mA 0 1 200mV 75mV 0 3 425mA 0 1 330mV 75mV 0 3 350mA 0 1 400mV Readback Resolution Voltage Current 1 16mV 42 0mA 1 8mV 30 8mA 3 08mV 18 2mA 5 1mV 13...

Page 18: ...nt OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model 20 130 power supply to 10 volts The expected result will be within the range of 10 volts...

Page 19: ...cy specifications according to the following voltage program accuracy example Set a model 20 50 power supply to 10 volts The expected result will be within the range of 10 volts 50mV 0 12 of the set v...

Page 20: ...curacy1 Voltage Current OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model 20 50 power supply to 10 volts The expected result will be within th...

Page 21: ...he GPIB interface printed circuit board PCB Initial Inspection On first receiving your unit perform a quick physical check Ensure each package contains a power supply with its GPIB interface board ins...

Page 22: ...Request LED SRQ Comes on at power up if the PON SRQ switch is set to on You can enable the SRQ LED during normal operation with the SRQ command Error LED ERR Indicates when a programming error has occ...

Page 23: ...board Error LED ERR Indicates that a programming error has occurred Clear with the error query command Address LED ADR Indicates that the unit is being addressed by the master controller SW1 Switch 1...

Page 24: ...active low See page 31 2 3 default User TTL S D line active high J103 Remote OVP Control Selection closed default See page 28 open Note All other jumpers are not user selectable LED INDICATORS CR89 Re...

Page 25: ...h to select the state of the Power ON Service Request See Power On Service Request PON SRQ on page 25 3 Remote Local Operation Use the rear panel PON REM switch to select remote or local startup of th...

Page 26: ...o A5 to set the primary address for the power supply See Table 2 2 IEEE 488 Primary Address Selection Switch 0 OFF OPEN Switch 1 ON CLOSED Table 2 2 IEEE 488 Primary Address Selection Note Ensure you...

Page 27: ...face Subplate on page 21 Table 2 3 SRQ Switch Selection Remote Local Operation Remote Local Mode Startup Start the power supply either in local mode or in remote mode by setting the power ON remote PO...

Page 28: ...use the interface commands to control the output of the power supply from a computer See Section 3 Operation for a complete list of device dependent commands available with this interface For informa...

Page 29: ...ation you can change power supply control to remote mode by ensuring that the GPIB REN line is asserted and then sending any software command to get into remote mode and the OUT ON command to restore...

Page 30: ...power supply to local operation by using the GPIB software commands or the by the front panel LOCAL switch control of the OVP trip level changes from software control to the front panel OVP potentiom...

Page 31: ...0Vdc The current range of the shutdown line is 1 10mA See Figure 2 5 J7 User Signal Connector Circuit Block Diagram on page 31 for a schematic of the J7 connector containing the shutdown user line Yo...

Page 32: ...can sink a current of 5mA each Figure 2 5 J7 User Signal Connector Circuit Block Diagram on page 31 shows the portion of the option board schematic which contains the J7 connector Use the schematic a...

Page 33: ...packaged and shipped with the power supply interface card To install the ferrite block 1 Position the block no more than 5 cm 2 from the power supply end of the J7 user cable 2 Open the ferrite block...

Page 34: ...ion and Configuration User Signals 32 Operating Manual for GPIB for XHR XFR Series Power Supply Figure 2 6 J7 User Cable with Ferrite Block J7 User Cable Ferrite Block To User Custom Interface To J7 C...

Page 35: ...d devices could include programmable AC or DC power supplies oscilloscopes signal generators digital voltmeters universal counters readouts relays and printers Use the GPIB interface to relay GPIB ins...

Page 36: ...Acceptor Handshake Device must properly receive remote multiline messages T6 Talker Device must be able to transmit L4 Listener Device must receive commands and data Interface Functions DC1 Device Cl...

Page 37: ...byte Parallel Poll does not reset the service request The power supply must be configured remotely to respond to a parallel poll with either a 1 or 0 on one of the DIO lines if the unit is requesting...

Page 38: ...al status indicators Serial Poll In a serial poll the controller polls each device Example The power supply responds with a 8 bit status byte defined as follows Table 3 2 Serial Poll Status Register i...

Page 39: ...arameter or COMMAND parameter parameter You can enter commands in upper or lower case lettering Example MASK FOLD mask fold Do not further abbreviate command names or parameters Example MASK FOLD MK F...

Page 40: ...efault unit is amps float float A float mA time The time in seconds or milliseconds If no unit is given the default unit is seconds float float s float ms voltage Vlo Vhi The voltage in volts or milli...

Page 41: ...e Feed Format COMMAND parameter COMMAND parameter parameter LF Most computer controllers automatically send LF with output statements Order You may send commands in any order keeping in mind that only...

Page 42: ...a new output voltage or current is specified FOLD Sets foldback mode for the supply HOLD Enables or disables voltage current setting hold mode for the supply IMAX Sets an upper soft limit on the prog...

Page 43: ...ks for the present hold mode setting ID Asks for the power supply s model name and master EPROM version IMAX Asks for the supply s soft current limit setting IOUT Measures the supply s actual current...

Page 44: ...cept for voltage programming VHI Sets the voltage output to the high calibration point VLO Sets the voltage output to the low calibration point VRDAT Calculates the slope and intercept for voltage rea...

Page 45: ...ns as listed in the status register AUXA 1 ON 0 OFF Controls the AUXA output signal level at rear panel connector J7 7 Active low Initial value AUXA 0 AUXA Asks for the present set value of the AUXA o...

Page 46: ...lears the ERR bit in the accumulated status register See Error Codes on page 51 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 f...

Page 47: ...to the output terminal This value is at the high end of the power supply s current range and is read by an external device connected as part of the calibration procedure Refer to this value as IHI and...

Page 48: ...n amps default or in milliamps This programmed current is the actual output in CC mode or the current limit in CV mode Range 0 to model maximum output current IMAX Initial value 0 amps ISET Asks for t...

Page 49: ...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...

Page 50: ...ed unmasked Response UNMASK fault mask where fault mask is the decimal equivalent of the total bit weights for the operating conditions as listed in the status and fault registers See Accumulated Stat...

Page 51: ...f the programmed voltage range Refer to the output value as VRHI and record it to use as input with the VRDAT command Set CMODE ON before using this command See also the calibration procedures in Sect...

Page 52: ...2 The error ERR bit is reset in the accumulated status status and serial poll registers with an error query ERR 3 The accumulated status register is cleared with an accumulated status query ASTS 4 A f...

Page 53: ...ctly placed word number separator or terminator Example OFF SRQ VOUT 6 MASK ERR 5 Number Out of Range Specified a value for the command which was outside of the allowed range 6 Attempt to Exceed Soft...

Page 54: ...ocessor successfully recovered from an illegal operating code The event is transparent to the GPIB communications bus and the GPIB interface continues to function normally The red COP LED at CR166 ind...

Page 55: ...ds Current sensing shunt resistor rated for 150 of maximum output current 0 25 accuracy or better Connection wires rated for the unit s maximum output current and voltage A GPIB equipped computer to s...

Page 56: ...and record the output voltage as shown on the external voltmeter 5 Send the command VDATA vlo vhi where vlo and vhi are the values read from the voltmeter when the VLO and VHI commands were sent When...

Page 57: ...vhi where vlo and vhi are the values read from the voltmeter after the VRLO and VRHI commands were sent The processor calculates the offset value required to calibrate the power supply When the power...

Page 58: ...and IHI VHI to the supply Measure and record the output voltage shown on the external voltmeter 5 Calculate ILO and IHI from the voltages read from the external voltmeter and the shunt resistance I V...

Page 59: ...age shown on the external voltmeter Send IRHI again 5 Calculate IRLO and IRHI from the voltages taken from the external voltmeter and the shunt resistance I V R 6 Send the command IRDAT ilo ihi to the...

Page 60: ...on the PCB of jumper J65 3 Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply 4 Send the command OVCAL to the power supply The ADR LED will light during OVP calibrat...

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Page 62: ...echnology Inc 8999 Nelson Way Burnaby British Columbia Canada V5A 4B5 604 422 8595 Tel 604 421 3056 Fax 800 667 8422 Toll Free North America prg info xantrex com www xantrex com TM GPRF 01XN PRINTED I...

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