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Xantrex XFR User's Manual

1. 0 0 0 0 0 0 16 1 0 0 0 0 1 0 0 0 0 1 17 1 0 0 0 1 2 0 0 0 1 0 18 1 0 0 1 0 3 0 0 0 1 1 19 1 0 0 1 1 4 0 0 1 0 0 20 1 0 1 0 0 5 0 0 1 0 1 21 1 0 1 0 1 6 0 0 1 1 0 22 1 0 1 1 0 7 0 0 1 1 1 23 1 0 1 1 1 8 0 1 0 0 0 24 1 1 0 0 0 9 0 1 0 0 1 25 1 1 0 0 1 10 0 1 0 1 0 26 1 1 0 1 0 11 0 1 0 1 1 27 1 1 0 1 1 12 0 1 1 0 0 28 1 1 1 0 0 43 0 1 1 0 1 29 1 1 1 0 1 14 0 1 1 1 0 30 1 1 1 1 0 15 0 1 1 1 1 Note Ensure you assign one address to each GPIB controller board as well 24 Operating Manual for GPIB for XHR XFR Series Power Supply Installation and Configuration Power On Service Request PON SRQ Power On Service Request PON SRQ The Power ON Service Request SRQ switch is located on the GPIB subplate rear panel S1 switch Enabling the SRQ switch causes the power supply to send a service request to the computer controller when the power supply is turned on or when it re initializes after a momentary power interrupt When the PON SRQ state is tripped the front panel SRQ LED will also turn on You can clear the service request and turn off the SRQ LED by performing a serial poll See Command Reference on page 43 for information about the SRQ command Table 2 3 shows the condition of the SRQ switch in relation to the position reference markings on the rear panel subplate The location of the switch and reference markings can be found in Figure 2 2 GPIB Interface Subplate on page 21 Table 2 3 SRQ Switch Selectio
2. Features and Specifications Specifications Table 1 3 Specifications for XFR 2800 W Series Supply with GPIB Interface Installed 7 5 V to 40 V Models 7 5 300 12 220 20 130 33 85 40 70 Program Resolution Voltage 1 16mV 1 8mV 3 08mV 5 1mV 6 2mV Current 42 0mA 30 8mA 18 2mA 13 0mA 9 8mA OVP 1 16mV 1 8mV 3 08mV 5 1mV 6 2mV Program Accuracy Voltage 10mV 50mV 75mV 75mV 75mV 0 12 0 12 0 12 0 3 0 3 Current 900mA 750mA 500mA 425mA 350mA 20 1 20 1 20 1 20 1 10 1 OVP 80mV 150mV 200mV 330mV 400mV Readback Resolution Voltage 1 16mV 1 8mV 3 08mV 5 1mV 6 2mV Current 42 0mA 30 8mA 18 2mA 13 0mA 9 8mA Readback Accuracy Voltage 30mV 60mV 75mV 75mV 75mV 0 12 0 12 0 12 0 3 0 3 Current 900mA 750mA 500mA 425mA 350mA 20 1 10 1 10 1 20 1 20 1 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 75mV 0 12 of the set voltage of 10 volts Release 3 1 15 Features and Specifications Specifications Table 1 4 Specifications for XFR 2800 W Series Supply with GPIB Interface Installed 60 V to 600 V Models 60 46 100 28 150 18 300 9 600 4 Program Resolution Voltage 9 2mV 15 4mV 23 1mV 46 2mV 92 4mV Current 6 44mA 3 92mA 2 52mA 1 26mA 0 56mA OVP 9 2mV 15 4mV 23 1mV 46 2mV 92 4mV Program Accuracy Voltage 150mV 150mV 225mV 225mV 250mV 0 25 0 35 0 35 0 35 0 35 Curr
3. To return to remote mode ensure that the REN line is asserted and then send any valid GPIB or device dependent command Since the remote mode output settings may be different from the local mode settings the output is programmed to protect the load by turning off when you toggle from local to remote mode during a session Check your remote settings and then send OUT ON to restore the output In local mode operation you set the voltage and current output levels and the OVP trip level with controls located on the front panel Refer to the operating manual for a description of the functions available at the front panel While in local mode operation 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 the output You can return to local mode by pressing the front panel LOCAL button unless Local Lockout is in effect If LLO is in effect use the GPIB GTL command to send the power supply into local mode or negate the REN line to turn off LLO and return the power supply to local mode Example ibfind devname Address the unit devname or device name as configured originally with ibconf ibloc Set unit to local mode ibwrt id Any message to the unit now puts it back to remote mode ibloc Toggle back to local mode Use the GPIB Local Lockout command to disable the front panel LOCAL switch With LLO in
4. and remote operation Foldback in CV or CC mode with reset Local Lockout capability Software calibration Output voltage and current Soft limits for voltage and current Overvoltage protection Output enable disable Maskable fault interrupt Hold and trigger User programmable output relay signals Actual measured voltage and current Voltage and current settings Soft voltage and current limits Overvoltage protection setting Present and accumulated power supply status Programming error codes Fault codes Power supply model and version identification Firmware revision levels Operating Manual for GPIB for XHR XFR Series Power Supply Features and Specifications Specifications Specifications The specifications in this section are warranted at 25 C 5 C unless otherwise specified All specifications are subject to change without notice Table 1 1 Specifications for XFR 1200 W Series Supply with GPIB Interface Installed 7 5 V to 40 V Models 7 5 140 12 100 20 60 35 35 40 30 Program Resolution Voltage 1 16mV 1 8mV 3 08mV 5 4mV 6 2mV Current 19 6mA 14mA 8 4mA 5 4mA 4 2mA OVP 1 16mV 1 8mV 3 08mV 5 4mV 6 2mV Program Accuracy Voltage 10mV 50mV 75mV 75mV 75mV 0 12 0 12 0 12 0 3 0 3 Current 500mA 460mA 250mA 200mA 150mA 10 1 20 1 20 1 10 1 0 15 OVP 80mV 150mV 200mV 350mV 400mV Readback Resolution Voltage 1 16mV 1 8mV 3 08mV 5 4mV 6 2mV Current 19 6mA 14mA 8 4mA 5 4mA 4 2mA Readback Accuracy Voltage 3
5. page 25 See IEEE 488 Controller Comnection on page 28 See Internal PCB Jumper Selections on page 28 and User Signals on page 30 for information about Local Remote OVP TTL Shutdown and auxiliary connector J7 user signals One such program is IBCONF Interface Bus Configuration from National Instruments This program is used here as an example only Example VSET2 ISET1 This command string sets power supply voltage to 2V and its current limit to 1A Example ibwrt vset2 iset1 As above using IBIC This text uses National Instruments IBIC Interface Bus Interactive Control program commands developed for their GPIB interface for computer controllers as examples only Release 3 1 23 Installation and Configuration IEEE 488 Primary Address Selection IEEE 488 Primary Address Selection 1 Assign a primary address to each power supply Choose a number between 0 and 30 which is unique to your IEEE 488 bus that is different from other device addresses on the same bus 2 Locate switch S1 on the GPIB interface rear panel See GPIB Interface Subplate on page 21 for the interface subplate drawing 3 Use switch positions Al to AS 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 Address A5 A4 A3 A2 A1 Address A5 gt A gt o gt N R
6. Local Mode Operation on page 27 Table 2 5 Remote Mode Power On Conditions Condition Voltage Current Soft Voltage Limit Soft Current Limit OVP Trip Voltage Delay Foldback Protection Output Hold Unmask Service Request Capability AUXA AUXB Default Settings OV OA VMAX see models IMAX see models Model VMAX 10 0 5s OFF ON OFF NONE OFF OFF OFF 7 5 140 Model Example VSET 0 ISET 0 VMAX 7 5 IMAX 140 OVSET 8 25 DLY 0 5S FOLD OFF OUT ON HOLD OFF UNMASK NONE SRQ OFF AUXA OFF AUXB OFF While in remote mode 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 information about how to use GPIB commands and GPIB lines refer to the documentation for the particular GPIB controller interface installed on your computer Operating Manual for GPIB for XHR XFR Series Power Supply Local Mode Operation Setting Local Lockout Release 3 1 Installation and Configuration Remote Local Operation While in remote mode you can change to local mode operation by pressing the front panel LOCAL button by sending the GPIB GTL Go to Local command or by negating the GPIB REN Remote Enable line You can disable the LOCAL button by enabling the GPIB Local Lockout LLO condition For an example of how to use LLO see Setting Local Lockout
7. command line is discarded An error query clears the ERR bit in the accumulated status register See Error Codes on page 51 Response ERR lt error number gt Example ERR 0 if no error 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 J7 4 user signal line You can tie the J7 4 fault line signal to the power supply s own External Shutdown user line J7 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 lt fault mask gt 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 50 Sets foldback mode for the supply Foldback protection disables the power supply output when the output enters the fold condition Reset with the RST 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 Operating Manual for GPIB for XHR
8. commas and may be sent in any order Specifying one or more mnemonics which describe the conditions or the decimal equivalent of their total bit weight enables the selected conditions to set bits in the supply s fault and status registers during operation A bit is set in the fault register when the corresponding bit in the status register changes from 0 to 1 and the corresponding bit in the mask register is 1 See Accumulated Status Status and Fault Registers on page 50 Mnemonics CV CC OV OT SD FOLD ERR PON REM ACF OPF SNSP ALL NONE Initial value UNMASK NONE Asks for the supply s fault conditions which are currently enabled unmasked Response UNMASK lt fault mask gt 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 Status Status and Fault Registers on page 50 Calculates and records the slope and offset for programmed voltage using VLO and VHI data Set CMODE ON before using this command See also the calibration procedures in Section 4 lt Vlo gt and lt Vhi gt are in lt voltage gt format In response to this command the power supply sends a programmed voltage value to the output terminal This value is at the high end of the power supply s voltage range and is read by an external device connected as part of the calibration procedure Refer to this value as VHI and record it to use as
9. input with the VDATA command Set CMODE ON before using this command See also the calibration procedures in Section 4 In response to this command the power supply sends a programmed voltage value to the output terminal This value is at the low end of the power supply s voltage range and is read by an external voltmeter connected as part of the calibration procedure Refer to this value as VLO and record it to use as input with the VDATA command Set CMODE ON before using this command See also the calibration procedures in Section 4 Operating Manual for GPIB for XHR XFR Series Power Supply Command VMAX lt voltage gt VMAX VOUT VRDAT lt Vlo gt lt Vhi gt VRHI VRLO VSET lt voltage gt or VSET lt voltage gt VSET Release 3 1 Operation Command Reference Description Sets an upper soft limit on the supply s programmed output voltage If the soft limit is exceeded or if the soft 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 accumulated status register Range 0 to model maximum output voltage VMAX Initial value model VMAX Asks for the supply s soft voltage limit setting Response VMAX lt voltage gt Measures the supply s actual voltage output using the built in voltage readback circuitry Response VOUT lt voltage gt Calculates and records the slope and offset for readback voltage using V
10. interface e Computer based communications software package We usually install the GPIB interface in a power supply at the factory Your local distributor or service center can also install the interface especially for use in a previously purchased supply already on site You must then configure the GPIB Interface enhanced supply for your system using the Basic Setup Procedure on page 23 Refer also to Figure 2 1 pg 20 Figure 2 2 pg 21 and Figure 2 3 pg 22 for drawings of the front panel the interface subplate and the GPIB interface printed circuit board PCB Initial Inspection Release 3 1 CAUTION If you remove the unit s cover use proper static control techniques to avoid damage to static sensitive components on the printed circuit board On first receiving your unit perform a quick physical check Ensure each package contains a power supply with its GPIB interface board installed and manuals for the power supply and the GPIB interface Any additional parts shipped with the power supply will be identified in the supply s documentation e Inspect the unit for any signs of physical damage such as scratches cracks or broken switches connectors or displays e Check the printed circuit board and components if you suspect internal damage If the unit is damaged save all packing materials and notify the carrier immediately For additional information please see the section titled Returning Power Supplies to
11. low to high current readback calibration values are stored as constants Program the supply at various levels using the ISET command to confirm that the calibration was successful and that linearity is observed Refer to the current readback accuracy specification in Section 1 Turn off calibration mode by sending the command CMODE OFF or CMODE 0 to the power supply 57 Calibration Over Voltage Protection OVP Calibration Over Voltage Protection OVP Calibration 58 We recommend that you perform OVP calibration every six months Connecting a digital voltmeter as in Voltage Calibration Setup is optional 1 2 Disconnect all loads from the power supply Ensure that jumper J65 on the interface PCB is CLOSED to enable remote OVP calibration Jumper J65 is closed at the factory See for the location on the PCB of jumper J65 Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply Send the command OVCAL to the power supply The ADR LED will light during OVP calibration Calibration is complete when the ADR LED turns off This may take a few minutes Use the OVSET OVSET and VSET commands to trip the OVP level confirming that the calibration was successful When you trip the OVP level the red OVP LED will light and the voltage will drop to zero Send the command RST to clear the OVP condition Refer to the OVP program accuracy specification in Section 1 Turn off calibration mode by send
12. lt vlo gt lt vhi gt where lt vlo gt and lt vhi gt are the values read from the voltmeter when the VLO and VHI commands were sent When the power supply is calibrated the low to high voltage program calibration values are stored as constants 6 Program the supply at various levels using the VSET command to confirm that the calibration was successful and that linearity is observed See the voltage program accuracy specification in Section 1 7 Turn off calibration mode by sending the command CMODE OFF or CMODE 0 to the power supply Voltage 1 Set the power supply for calibration as in Figure 4 1 Readback 54 Activate calibration mode by sending command CMODE ON or CMODE 1 to Calibration the power supply Procedure p PE 54 Operating Manual for GPIB for XHR XFR Series Power Supply Release 3 1 Calibration Voltage Mode Calibration Send command VRLO IRLO to the power supply Wait for the supply to settle Measure and record the output shown on the external voltmeter Send VRLO again Send VRHI IRHI to the supply Wait for the supply to settle Measure and record the output voltage shown on the external voltmeter Send VRHI again Send the command VRDAT lt vlo gt lt vhi gt where lt vlo gt and lt vhi gt 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 supply is calibrated the low to high vol
13. power supply from a computer controller via the IEEE 488 communications bus See Figure 1 1 Sample Configuration using GPIB Interface The GPIB interface allows complete remote programming of your power supply including status reporting settings query and interrupt generation with 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 measure the actual power supply output and provide you with 16 bit readback The programming command set is easy to use and includes software calibration commands The interface card comes standard with several protection features such as programmable over voltage protection foldback load isolation signal and soft limits Figure 1 1 Sample Configuration using GPIB Interface 1200 Watt DC Power Supplies Shown Release 3 1 11 Features and Specifications Features and Functions Features and Functions Features Programmable Functions Readback Functions 12 16 bit programming and readback of voltage and current Programmable soft limits for voltage and current Programmable over voltage protection with reset Easy to use self documenting command set Isolated user programmable signals such as fault polarity isolation and auxiliary signals LED status signals error addressed service request over voltage protection
14. remote mode See Setting Local Lockout on page 27 for more information Example ibfind GPIBO Address the computer controller ibsic Put the controller in charge by sending an Interface Clear ibsre1 Asserts Remote Enable ibemd _ x11 Send commands UNL UNT MTAO LLO in ASCII Note To disable Local Lockout use ibsre0 in place of ibsre1 in the example 35 Operation GPIB Operation 36 Service Request Serial Poll Service request is a uniline message asserted by the power supply at power on and for fault conditions Ten 10 power supply conditions are defined as faults CV CC OV OTP SD FOLD ERR ACF OPF and SNSP See Accumulated Status Status and Fault Registers on page 50 for more information Power ON PON can also be flagged in the fault register if the supply s rear panel power on service request PON SRQ switch is set to ON See Power On Service Request PON SRQ on page 25 Enabling or disabling a condition from asserting service request does not affect the condition within the power supply nor the external status indicators In a serial poll the controller polls each device Example ibrsp Return serial poll byte The power supply responds with a 8 bit status byte defined as follows Table 3 2 Serial Poll Status Register Bit Decimal ae Position Weight Description Reset By O LSB 1 Fault Set when any bit in the fault FAULT query to reset register is set by a fault co
15. the Manufacturer in the manual shipped with your complete unit 19 Installation and Configuration Initial Inspection CAUTION Use proper static control techniques to avoid damage to static sensitive components on the printed circuit board Remote LED REM Local Switch LOCAL i A y sao Gehl 300 N NH _ gt Remote Programming LEDs Address LED ADR Fault LED FLT Indicates that the master controller is addressing the unit Indicates that a fault has occurred The fault bit t be unmasked Refer to the status register in Service Request LED SRQ mus ioi A Comes on at power up if the PON SRA switch is set to ol Foly 50 Momentarily lights if on You can enable the SRQ LED during normal ISSE 10 On operation with the SRQ command Polarity LED POL Indicates that the polarity user line has been Error LED ERR E 66 p 2 Indicates when a programming error has occurred You aa 50 Connector J7 User Signals can clear the ERR LED with an error query command pag y Figure 2 1Power Supply Front Panel with GPIB Interface Installed 1200 Watt Power Supply Shown 20 Operating Manual for GPIB for XHR XFR Series Power Supply Installation and Configuration Initial Inspection 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 IEEE 488 Connector ee N SA Switch Po
16. to entire bus or Device dependent command directed to a specific device Operating Manual for GPIB for XHR XFR Series Power Supply Device Trigger Parallel Poll Local Lockout Release 3 1 Operation GPIB Operation Device Trigger will implement the most recently programmed values whether the unit is in local or remote control If the power supply is in local mode the new values will be implemented when it is switched from local to remote control Device Trigger is typically used to synchronize the operation of a number of addressed devices Example Use HOLD Command to set values to be executed when triggered See Command Reference on page 43 Then use ibfind devname Address the unit devname or device name as configured originally with ibconf ibtrg Command directed to entire bus or ibwrt trg Command directed to a specific device Parallel Poll allows the computer controller to determine quickly which of a number of instruments on the bus requested service The parallel poll response corresponds to bit 7 of the serial poll status 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 service Example ibrpp Conduct a parallel poll Send Local Lockout from the computer controller to override the front panel LOCAL switch and ensure that the supply operates in
17. voltage gt lt Vlo gt lt Vhi gt lt mnemonics gt lt state gt given the default unit is amps The time in seconds or milliseconds If no unit is given the default unit is seconds The voltage in volts or millivolts If no unit is given the default unit is volts A combination of CV CC CV OV OT SD FOLD ERR PON REM ACF OPF and SNSP See MASK and UNMASK commands in the command reference for use of the ALL and NONE parameters The state of a binary condition lt float gt A lt float gt mA lt float gt lt float gt s lt float gt ms lt float gt lt float gt V lt float gt mV See registers on page 50 lt 1 ON 0 OFF gt Floating Point Number lt float gt Variables sent with command parameters are floating point numbers Table 3 4 defines the structure of floating point numbers for use with the software commands Table 3 4 Floating Point Numbers Floating Number Definition Example 1 234 The floating point number has four significant fig ures It can be of either sign positive or negative A floating point number can have one decimal point Scientific Notation Use E or e after the number for a base ten exponent An integer of either sign must follow an exponent 1 234 1 234 0 123 1 2 123 4 123 0E 1 1 2E 1 10 00E 1 Operating Manual for GPIB for XHR XFR Series Power Supply Command Strings Command Terminators Order Release 3 1 Operation Command Synta
18. 0mV 60mV 75mV 75mV 75mV 0 12 0 12 0 12 0 3 0 3 Current 500mA 460mA 250mA 200mA 150mA 10 1 10 1 10 1 20 1 0 15 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 volts 75mV 0 12 of the set voltage of 10 volts Release 3 1 13 Features and Specifications Specifications Table 1 2 Specifications for XFR 1200 W Series Supply with GPIB Interface Installed 60 V to 600 V Models 60 20 100 12 150 8 300 4 600 2 Program Resolution Voltage 9 2mV 15 4mV 23 1mV 46 2mV 92 4mV Current 2 8mA 1 68mA 1 12mA 0 56mA 0 28mA OVP 9 2mV 15 4mV 23 1mV 46 2mV 92 4mV Program Accuracy Voltage 150mV 150mV 225mV 225mV 250mV 0 25 0 35 0 35 0 35 0 35 Current 120mA 80mA 80mA 80mA 50mA 0 1 0 1 0 1 0 1 0 1 OVP 600mV 800mV 1 5V 3 0V 6V Readback Resolution Voltage 9 2mV 15 4mV 23 1mV 46 2mV 92 4mV Current 2 8mA 1 68mA 1 12mA 0 56mA 0 28mA Readback Accuracy Voltage 150mV 150mV 225mV 225mV 250mV 0 25 0 35 0 35 0 35 0 35 Current 120mA 80mA 80mA 80mA 50mA 0 1 0 1 0 1 0 1 0 1 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 volts 75mV 0 12 of the set voltage of 10 volts 14 Operating Manual for GPIB for XHR XFR Series Power Supply
19. A command is a one word code which either gives instructions to the interface or asks for information from the interface A command may be followed by one or more parameters a short code that changes the state of the power supply or the state of the bit register Table 3 3 Command Parameters lists the parameters that affect the command set Format COMMAND or COMMAND lt parameter gt or COMMAND lt parameter gt lt parameter gt e You can enter commands in upper or lower case lettering Example MASK FOLD mask fold e Do not further abbreviate command names or parameters Example MASK FOLD MK FOLD MASK FOLD MASK FD e Use a space between the command and the first parameter Any number of consecutive spaces is treated as one space Numeric data may contain leading spaces Embedded spaces between digits or between a digit and a decimal point are not accepted Example MASK FOLD MASK FOLD VOUT 3 4 VOUT 3 4 VOUT 3 44 VOUT 3 4 37 Operation Command Syntax 38 e Use commas between parameters in those commands with more than one parameter and between mnemonic parameters 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 Table 3 3 Command Parameters Parameter lt current gt lt Ihi gt lt llo gt Description Form lt float gt The current in amps or milliamps If no unit is lt time gt lt
20. BY XANTREX IN CONNECTION WITH YOUR XANTREX PRODUCT AND IS WHERE PERMITTED BY LAW IN LIEU OF ALL OTHER WARRANTIES CONDITIONS GUARANTEES REPRESENTATIONS OBLIGATIONS AND LIABILITIES EXPRESS OR IMPLIED STATUTORY OR OTHERWISE IN CONNECTION WITH THE PRODUCT HOWEVER ARISING WHETHER BY CONTRACT TORT NEGLIGENCE PRINCIPLES OF MANUFACTURER S LIABILITY OPERATION OF LAW CONDUCT STATEMENT OR OTHERWISE INCLUDING WITHOUT RESTRICTION ANY IMPLIED WARRANTY OR CONDITION OF QUALITY MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT REQUIRED UNDER APPLICABLE LAW TO APPLY TO THE PRODUCT SHALL BE LIMITED IN DURATION TO THE PERIOD STIPULATED UNDER THIS LIMITED WARRANTY IN NO EVENT 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 ECONOMIC LOSSES OF ANY KIND ANY LOSS OR DAMAGE TO PROPERTY ANY PERSONAL INJURY ANY DAMAGE OR INJURY ARISING FROM OR AS A RESULT OF MISUSE OR ABUSE OR THE INCORRECT INSTALLATION INTEGRATION OR OPERATION OF THE PRODUCT If this product is a consumer product federal law does not allow an exclusion of implied warranties To the extent you are entitled to implied warranties under federal law to the extent permitted by applicable law they are limited to the duration of this Limited Warranty
21. E CMODE lt 1 ON gt lt 0 OFF gt CMODE ON places the power supply into calibration mode for processing calibration commands Initial value CMODE OFF or CMODE 0 CMODE Asks for the power supply s calibration mode status Response CMODE 0 disabled CMODE 1 enabled Release 3 1 43 Operation Command Reference Command DLY lt seconds gt DLY ERR FAULT FOLD lt 2 CC gt lt 1 CV gt lt 0 OFF gt 44 Description 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 Asks for the setting of the programmable time delay before the supply reports fault conditions Response DLY lt seconds gt 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
22. Mn eee eed eee ee 37 Manual Conventions 6000 cece eee 37 Command Format and Parameters 000 00 cee eee 37 Command Stings oe ese se eS ages Fit eye dS Aye tay ds eee ee Galas 39 Command Terminators 000 cece eee 39 Ordi ver a ee aK Ronee ceed NL aN Pane tent Pavey ye ee ae Gua 39 Command Summary ooo 40 Contents Command Reference ii A A ES es PS 43 Accumulated Status Status and Fault Registers ssssosossssrssss ser error ra 50 ErromGod s og sa ser das 51 TFOUDIESKHOO UNO ei oo tea Ir toi ni AB ia bes ate ats al 52 DiIagH Ste LEDS a rt st ed tb 52 Section 4 Introduction a id WES eee 53 Calibration Voltage Mode Calibration ssssssssssssrssrsrrrsr rss reses sne sta 54 Voltage Calibration Setup sosse eerreerrer sees rer rer eee 54 Voltage Program Calibration Procedure sossssessessers ess ers rss ses ee 54 Voltage Readback Calibration Procedure u a sasaaa aaua aeaa 54 Current Mode Calibration 2 0 2 0 cette ee 56 Current Calibration Setup o o 2 eee 56 Current Program Calibration Procedure 0 0c esse rss ss sea 56 Current Readback Calibration Procedure 0 0 ers rr rss sea 57 Over Voltage Protection OVP Calibration o o ooooooooooommmo o 58 Xx Operating Manual for GPIB for XHR XFR Series Power Supply Section 1 Features and Specifications Description The internal GPIB interface card allows you to operate your
23. RHI data Set CMODE ON before using this command See also the calibration procedures in Section 4 lt llo gt and lt lhi gt are in lt current gt format The power supply outputs a current value to an external device connected as part of the calibration procedure and records a current readback value internally These values are at the high end of the programmed current range Refer to the output value as IRHI and record it to use as input with the IRDAT command Set CMODE ON before using this command See also the calibration procedures in Section 4 The power supply outputs a current value to an external device connected as part of the calibration procedure and records a current readback value internally These values are at the low end of the programmed current range Refer to the output value as IRLO and record it to use as input with the IRDAT command Set CMODE ON before using this command See also the calibration procedures in Section 4 Sets the power supply s output current in 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 O amps Asks for the supply s present output current setting Does not apply to current settings which are being held See HOLD command Response ISET lt current gt Disables the supply s previously unmasked operating conditions from setting bits in the fault and status r
24. RLO and VRHI data Set CMODE ON before using this command See also the calibration procedures in Section 4 lt Vlo gt and lt Vhi gt are in lt voltage gt format The power supply outputs a voltage value to an external voltmeter connected as part of the calibration procedure and records a voltage readback value internally These values are at the high end of 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 Section 4 The power supply outputs a voltage value to an external voltmeter connected as part of the calibration procedure and records a voltage readback value internally These values are at the low end of the programmed voltage range Refer to the output value as VRLO and record it to use as input with the VRDAT command Set CMODE ON before using this command See also the calibration procedures in Section 4 Sets the power supply s output voltage in volts default or in millivolts This programmed voltage is the actual output in CV constant voltage mode or the voltage limit in CC constant current mode If you enter a negative voltage value the power supply will assert a signal on the J7 4 user signal line You can use the user signal to trip external relays to switch the output polarity Range 0 to model maximum output voltage VMAX Initial value O volts Asks for the power su
25. Smart choice for power xantrex GPIB XHR GPIB XFR GPIB XFR3 Operating Manual Internal GPIB Interface for XHR XFR Series Programmable DC Power Supplies www xantrex com xantrex Operating Manual for Internal GPIB Interface for XHR 1000 Watt Series XFR 1200 Watt Series and XFR 2800 Watt Series Programmable DC Power Supplies Limited what does this warranty cover and how long does it last Warranty This Limited Warranty is provided by Xantrex Technology Inc Xantrex and covers defects in workmanship and materials in your GPIB Interface Card This warranty lasts for a Warranty Period of 5 years from the date of purchase at point of sale to you the original end user customer What will Xantrex do Xantrex will at its option repair or replace the defective product free of charge provided that you notify Xantrex of the product defect within the Warranty Period and provided that Xantrex through inspection establishes the existence of such a defect and that it is covered by this Limited Warranty Xantrex will at its option use new and or reconditioned parts in performing warranty repair and building replacement products Xantrex reserves the right 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 Warranty Period or 90 days from the date of the return s
26. Some states and provinces do not allow limitations or exclusions on implied warranties or on the duration of an implied warranty or on the limitation or exclusion of incidental or consequential damages so the above limitation s or exclusion s may not apply to you This Limited Warranty gives you specific legal rights You may have other rights which may vary from state to state or province to province Operating Manual for GPIB for XHR XFR Series Power Supply Information WARNING Limitations on Use Information About Your Power Supply Release Release 3 1 WITHOUT LIMITING THE GENERALITY OF THE FOREGOING UNLESS SPECIFICALLY AGREED TO BY IT IN WRITING XANTREX a MAKES NO WARRANTY AS TO THE ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN MANUALS OR OTHER DOCUMENTATION PROVIDED BY IT IN CONNECTION WITH THE PRODUCT AND b ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES DAMAGES COSTS OR EXPENSES WHETHER SPECIAL DIRECT INDIRECT CONSEQUENTIAL OR INCIDENTAL WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER S RISK Please refer to your 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 warranty or representation in connection with any use of the product for such purposes Xa
27. XFR Series Power Supply Command FOLD HOLD lt 1 ON gt lt 0 OFF gt HOLD 1D IDATA lt llo gt lt Ihi gt IHI ILO IMAX lt current gt IMAX IOUT Release 3 1 Operation Command Reference Description Asks for the supply s present foldback setting Response FOLD lt mode gt where mode is 0 OFF or 1 CV or Constant Voltage mode or 2 CC or Constant Current mode Enables or disables voltage current setting hold mode for the supply When HOLD ON is specified hold mode is enabled so that all voltage and current settings which would normally be implemented by the supply are held until a TRG trigger command is received This feature allows you to synchronize the operation of several supplies Initial value HOLD OFF or HOLD O Asks for the present hold mode setting Response HOLD 0 OFF or disabled or HOLD 1 ON or enabled Asks for the power supply model and the master EPROM version Response ID lt model name gt lt version gt Calculates and records the slope and offset for programmed current using ILO and IHI data Set CMODE ON before using this command See also the calibration procedures in Section 4 lt llo gt and lt lhi gt are in lt current gt format In response to this command the power supply sends a programmed current value 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
28. al 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 indicates that a transparent restart caused by noise in the master processor circuitry has occurred The red COP LED at CR89 indicates that a transparent restart caused by noise in the slave processor circuitry has occurred Operating Manual for GPIB for XHR XFR Series Power Supply Section 4 Calibration Introduction Release 3 1 WARNING Exercise caution when using and servicing power supplies High energy levels can be stored at the output voltage terminals on all power supplies in normal operation In addition potentially lethal voltages exist in the power circuit and the output connector of power supplies which are rated at 40V and over Filter capacitors store potentially dangerous energy for some time after power is removed You 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 You may need to recalibrate the interface if you replace parts either on the interface board or on the main power supply board or if the unit falls out of specification due to component aging drifts You can calibrate the GPIB Interface for e Voltage program e Voltage readback e Current program e Current readback e Overvoltage protection The following equipment will
29. ations 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 voltage of 10 volts Release 3 1 17 Features and Specifications Specifications Table 1 6 Specifications 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 Voltage 15 4mV 23 1mV 46 2mV 92 4mV Current 3 92mA 2 52mA 1 26mA 0 56mA OVP 15 4mV 23 1mV 46 2mV 92 4mV Program Accuracy Voltage 150mV 225mV 225mV 250mV 0 35 0 35 0 35 0 35 Current 140mA 120mA 80mA 80mA 0 15 0 1 0 1 0 1 OVP 800mV 1 5V 3 0V 6V Readback Resolution Voltage 15 4mV 23 1mV 46 2mV 92 4mV Current 3 92mA 2 52mA 1 26mA 0 56mA Readback Accuracy Voltage 150mV 225mV 225mV 250mV 0 35 0 35 0 35 0 35 Current 140mA 120mA 80mA 80mA 0 15 0 1 0 1 0 1 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 the range of 10 volts 50mV 0 12 of the set voltage of 10 volts 18 Operating Manual for GPIB for XHR XFR Series Power Supply Section 2 Installation and Configuration Introduction To use this product you must have the following equipment e a compatible model of DC output power supply JEEE 488 connector and cable e computer with an IEEE 488
30. be required to accurately calibrate your unit e Digital Voltmeter 5 1 2 digit 0 1 accuracy or better with test leads e Current sensing shunt resistor rated for 150 of maximum output current 0 25 accuracy or better e Connection wires rated for the unit s maximum output current and voltage e A GPIB equipped computer to send the calibration commands to the unit Calibrate the unit according to the following procedures referring to Command Reference for more information about the calibration commands used The calibration procedures in this section are designed to be performed at an ambient temperature of 25 C 5 C 53 Calibration Voltage Mode Calibration Voltage Mode Calibration Voltage 1 Disconnect the load from the power supply which is to be calibrated Calibration 5 Connect a voltmeter across the power supply s output terminals Setup Power Supply Power Supply Positive Output Negative Output o VOLTMETER Figure 4 1 Voltage Calibration Setup Voltage 1 Set the power supply for calibration as in Figure 4 1 Program gt Activate calibration mode by sending command CMODE ON or CMODE 1 to Calibration th ly Procedure pe eae 3 Send command VLO ILO to the power supply Measure and record the output shown on the external voltmeter 4 Send command VHI IHI to the supply Measure and record the output voltage as shown on the external voltmeter 5 Send the command VDATA
31. calibration procedure Refer to this value as IHI and record it to use as input with the IDATA command Set CMODE ON before using this command See also the calibration procedures in Section 4 In response to this command the power supply sends a programmed current value to the output terminal This value is at the low 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 ILO and record it to use as input with the IDATA command Set CMODE ON before using this command See also the calibration procedures in Section 4 Sets an upper soft limit on the supply s programmed output current If the soft limit is exceeded or if the soft limit value is lower than the present output current setting the supply will ignore the commana turn on the ERR LED and set the ERR bit in the bit registers Range 0 to model maximum output current IMAX Initial value model IMAX Asks for the supply s soft current limit setting Response IMAX lt current gt Measures the supply s actual current output using the built in current readback circuitry Response IOUT lt current gt 45 Operation Command Reference Command IRDAT lt llo gt lt lhi gt IRHI IRLO ISET lt current gt ISET MASK lt mnemonics gt OUT lt 1 ON gt lt 0 OFF gt OUT 46 Description Calculates and records the slope and offset for readback voltage using IRLO and I
32. effect you cannot return to local control by pressing the front panel LOCAL switch You can still return to local mode by sending the GTL command To turn off LLO and return the power supply to local mode negate the REN line The LLO condition can only be removed by negating the asserted REN line Example ibfind GPIBO Address the computer controller ibsic Put the controller in charge by sending an Interface Clear ibsrel Assert the Remote Enable line 27 Installation and Configuration IEEE 488 Controller Connection ibfind GPIBO Address the computer controller ibemd xI1 Send commands UNL UNT MTAO LLO in ASCII ibfind devname Address the unit devname or device name as configured originally with ibconf ibloc Set unit to local mode Note To disable Local Lockout use the IBIC ibsre0 command in this example IEEE 488 Controller Connection Use an approved IEEE 488 connector and cable when connecting the power supply s GPIB interface to your IEEE 488 GPIB network The IEEE 488 connector uses mating connector J8 on the rear panel of the power supply Internal PCB Jumper Selections 28 OVP Selection CAUTION If you remove the unit s cover use proper static control techniques to avoid damage to static sensitive components on the printed circuit board You can select how you use OVP over voltage protection control and TTL shutdown by changing jumper positions on the GPIB PCB Refer to the operating manual
33. egisters See Accumulated Status Status and Fault Registers on page 50 Mnemonics are separated from each other by commas and may be sent in any order Mnemonics CV CC OV OT SD FOLD ERR PON REM ACF OPF SNSP Note UNMASK NONE MASK ALL Initial value MASK NONE UNMASK ALL Enables or disables the supply s voltage current output The supply will continue to accept new commands while the output is disabled but these will not be implemented until OUT ON or OUT 1 is received OUT ON is the default setting When you start the supply in remote mode the output is enabled OUT OFF or OUT 0 also sets the isolation signal on the rear panel J7 connector line 3 You can use the to trip external relays to isolate the power supply from the load Initial value OUT ON or OUT 1 for output enabled Asks for the present enabled disabled status of the supply s output voltage current Response OUT 1 output enabled or OUT 0 output disabled Operating Manual for GPIB for XHR XFR Series Power Supply Command OVCAL OVSET lt voltage gt OVSET ROM RST SRQ lt 1 ON gt lt 0 OFF gt SRQ STS Release 3 1 Operation Command Reference Description Causes the master controller to perform automatic calibration of the supply s over voltage protection circuitry Set CMODE ON before using this command Ensure jumper J65 on the GPIB Interface PCB is connected for remote operation Sets the supply s over voltage
34. ent 250mA 140mA 120mA 80mA 80mA 0 1 0 15 0 1 0 1 0 1 OVP 600mV 800mV 1 5V 3 0V 6V Readback Resolution Voltage 9 2mV 15 4mV 23 1mV 46 2mV 92 4mV Current 6 44mA 3 92mA 2 52mA 1 26mA 0 56mA Readback Accuracy Voltage 150mV 150mV 225mV 225mV 250mV 0 25 0 35 0 35 0 35 0 35 Current 250mA 140mA 120mA 80mA 80mA 0 1 0 15 0 1 0 1 0 1 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 75mV 0 12 of the set voltage of 10 volts 16 Operating Manual for GPIB for XHR XFR Series Power Supply Features and Specifications Specifications Table 1 5 Specifications for XHR 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 Voltage 1 16mV 1 8mV 3 08mV 6 2mV 9 2mV Current 42 0mA 30 8mA 18 2mA 9 8mA 6 44mA OVP 1 16mV 1 8mV 3 08mV 6 2mV 9 2mV Program Accuracy Voltage 10mV 50mV 75mV 75mV 150mV 0 12 0 12 0 12 0 3 0 25 Current 900mA 750mA 500mA 350mA 250mA 20 1 20 1 20 1 20 1 10 1 OVP 80mV 150mV 200mV 400mV 600mV Readback Resolution Voltage 1 16mV 1 8mV 3 08mV 6 2mV 9 2mV Current 42 0mA 30 8mA 18 2mA 9 8mA 6 44mA Readback Accuracy Voltage 30mV 60mV 75mV 75mV 150mV 0 12 0 12 0 12 0 3 0 25 Current 900mA 750mA 500mA 350mA 250mA 20 1 10 1 20 1 20 1 20 1 1 Apply accuracy specific
35. ervice request See Accumulated Status Status and Fault Registers on page 50 A request for service at Power ON PON SRQ is set via a rear panel switch on the supply See Power On Service Request PON SRQ on page 25 SRQ remains disabled until the FAULT bit in the serial poll register is cleared by a FAULT query Asks for the supply s present ability to generate service requests Response SRQ 0 disabled SRQ 1 enabled Asks for the supply s present status register Status conditions are stored in the status register Each bit represents a separate condition When the condition is true the corresponding bit is 1 true Bits remain set in the status register as long as the condition is true See Accumulated Status Status and Fault Registers on page 50 Response STS lt status mask gt where status mask is the decimal equivalent of the total bit weights for the operating conditions as listed in the status register 47 Operation Command Reference Command TRG UNMASK lt mnemonics gt UNMASK VDATA lt Vlo gt lt Vhi gt VHI VLO 48 Description Implements programmed voltage and current settings which had been in hold mode The supply operates with previous values until the TRG trigger command is sent Enables you to select the supply operating conditions that you are most interested in monitoring for fault occurrence Mnemonics describing the conditions are separated from each other by
36. etting before the supply reports fault conditions ERR Asks for the most recent remote programming error which occurred in the supply since the last time the error query command ERR was used FOLD Asks for the supply s present foldback setting HOLD Asks for the present hold mode setting 1D 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 output ISET Asks for the supply s present output current limit setting OUT Asks for the present enabled disabled status of the supply s output OVSET Asks for the supply s present over voltage protection limit ROM Asks for the version number of the master and slave EPROMs on the interface PCB SRQ Asks for the present enabled disabled status of the IEEE 488 Service Requests generated by the supply VMAX Asks for the supply s soft voltage limit setting VOUT Measures the supply s actual voltage output VSET Asks for the supply s present output voltage setting 41 Operation Command Summary Table 3 7 Calibration Commands Command CMODE IDATA IHI ILO IRDAT IRHI IRLO OVCAL VDATA VHI VLO VRDAT VRHI VRLO Description Places the supply into calibration mode Calculates the slope and intercept for current programming Sets the current output to the high calibration point Sets the current output to the low calibration point Calculates t
37. face Functions Implemented Description Device must properly transfer a multiline message Device must properly receive remote multiline messages Device must be able to transmit Device must receive commands and data Device can be initialized to a previously determined state A device function can be initiated by a talker on the bus Describes the type of electrical drivers in a device Upon controller request device must uniquely identify itself if it requires service Device must be able to operate from front panel and via remote information from bus Device can asynchronously request service from controller All talkers on the bus assume a serial poll mode Each device when addressed will provide an 8 bit word of status information The GPIB interface and the computer controller implement the Acceptor Handshake Source Handshake Listener and Talker functions No user action is required The unit s ADR Addressed LED turns on when the power supply is addressed to listen The power supply will implement Device Clear regardless of whether it is in local or remote control Device Clear is typically used to send all or selected devices to a known state with a single command The power supply will be set to Initial Power On Conditions after Device Clear Example ibfind devname ibelr ibwrt clr Address the unit devname or device name as configured originally with ibconf Low level command directed
38. for information on how to use over voltage protection and TTL shutdown Over voltage protection OVP on the GPIB interface is set at the factory for remote software operation When operating the power supply in remote mode you control the OVP trip level using the OVSET software command If you return the 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 potentiometer The default OVP trip level is set as 110 of the power supply s rated output voltage See Table 2 5 on page 26 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 J65 and the Remote OVP Control jumper J103 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 Operating Manual for GPIB for XHR XFR Series Power Supply Installation and Configuration Internal PCB Jumper Selections 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 Table 2 6 OVP Control Mode Selection PCB Jumper PCB Jumper OVP Pro
39. gramming Selection J65 Position J103 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 J7 connector on the interface subplate The shutdown user line uses a 0 5Vde 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 J7 User Signal Connector Circuit Block Diagram on page 31 for a schematic of the J7 connector containing the shutdown user line You can select the logic level of the TTL input by changing the J93 connector on the GPIB PCB Table 2 7 shows the TTL signal levels for the J93 jumper settings See Figure 2 2 3 for the location of the J93 jumper on the printed circuit board Table 2 7 Switch Settings for TTL Shutdown Circuit Logic PCB Jumper J93 Position TTL Signal Level Supply Output Condition Pin 2 to Pin 3 default HIGH OFF LOW ON Pin 1 to Pin 2 HIGH ON LOW OFF Release 3 1 29 Installation and Configuration User Signals User Signals Co
40. he slope and intercept for current readback Sets the current output to the high readback point Sets the current output to the low readback point Calibrates the over voltage protection OVP Calculates the slope and intercept for voltage programming Sets the voltage output to the high calibration point Sets the voltage output to the low calibration point Calculates the slope and intercept for voltage readback Sets the voltage output to the high readback point Sets the voltage output to the low readback point Table 3 8 Status Commands Command ASTS FAULT MASK STS UNMASK UNMASK 42 Description Asks for the supply s accumulated status register Asks for the supply s fault register for the status preset operating conditions Prevents the supply s previously unmasked operating conditions from setting bits in the fault register Asks for the supply s present status register Enables you to select those supply s operating conditions that you are most interested in monitoring for fault occurrence Asks for the supply s fault conditions which are currently enabled unmasked Operating Manual for GPIB for XHR XFR Series Power Supply Operation Command Reference Command Reference Table 3 9 Command Reference Command Description ASTS Asks for the supply s accumulated status register The accumulated status register stores any bit that was entered in the status register since the accumulated statu
41. hipment to the customer whichever is greater All replaced products and all parts removed from repaired products become the property of Xantrex Xantrex covers both parts and labor necessary to repair the product and return shipment to the customer via a Xantrex selected non expedited surface freight within the contiguous United States and Canada Alaska and Hawaii are excluded Contact Xantrex Customer Service for details on freight policy for return shipments outside of the contiguous United States and Canada How do you get service If your product requires troubleshooting or warranty service contact your merchant If you are unable to contact your merchant or the merchant is unable to provide service contact Xantrex directly at Phone 604 422 8595 Toll Free North America 1 800 667 8422 Fax 604 421 3056 Email info xantrex com ii Operating Manual for GPIB for XHR XFR Series Power Supply Direct returns may be performed according to the Xantrex Return Material Authorization Policy described in your product manual 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 In any warranty claim dated proof of purchase must accompany the product and the product must not have been disassembled or modified without prior written authorization by Xantrex Proof of purchase may be in any one of the followi
42. ined from sending the ILO and IHI commands to the power supply When the power supply is calibrated the low to high current program calibration values are stored as constants 7 Program the supply at various levels using the ISET command to confirm that the calibration was successful and that linearity is observed Refer to the current program accuracy specification in Section 1 8 Turn off calibration mode by sending the command CMODE OFF or CMODE 0 to the power supply Operating Manual for GPIB for XHR XFR Series Power Supply Current Readback Calibration Procedure Release 3 1 Calibration Current Mode Calibration Connect the current shunt and voltmeter to the power supply as shown in Figure 4 2 Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply Send command IRLO VRLO to the power supply Wait for the supply to settle Measure and record the output voltage shown on the external voltmeter Send IRLO again Send command IRHI VRHI to the supply Wait for the supply to settle Measure and record the output voltage shown on the external voltmeter Send IRHI again Calculate IRLO and IRHI from the voltages taken from the external voltmeter and the shunt resistance I V R Send the command IRDAT lt ilo gt lt ihi gt to the power supply lt ilo gt and lt ihi gt are the current values obtained from sending the IRLO and IRHI commands to the power supply When the power supply is calibrated the
43. ing the command CMODE OFF or CMODE 0 to the power supply Operating Manual for GPIB for XHR XFR Series Power Supply Xantrex Technology 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 IN CANADA
44. l mnemonics can be masked or unmasked 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 fault is cleared with a fault query FAULT 50 Operating Manual for GPIB for XHR XFR Series Power Supply Error Codes Release 3 1 Operation 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 Table 3 11 Error Codes ERROR ERROR IDENTIFICATION 0 No Errors 4 Unrecognized Character Improper Number Unrecognized String Syntax Error 5 Number Out of Range 6 Attempt to Exceed Soft Limits 7 Improper Soft Limit 8 Data Requested without a Query Being Sent 9 OVP Set Below Output 10 Slave Processor Not Responding 12 Illegal Calibration EXPLANATION Received a character such as Received a numeric character but the characters were not a proper number Example VSET 10 3 Received an invalid command Received an incorrectly placed word number separator or terminator Example OFF SRQ VOUT 6 MASK ERR Specified a value for the command which was outside of the allowed range Attempted to program a voltage or current greater than the soft limi
45. l on the J7 8 connector Initializes the power supply to its Power ON PON state Sets a programmable time delay which is executed by the supply before reporting fault conditions after a new output voltage or current is specified Sets foldback mode for the supply Enables or disables voltage current setting hold mode for the supply Sets an upper soft limit on the programmed output current for the supply Sets the output current of the supply in amps default or in milliamps Enables or disables voltage current output for the supply Sets the over voltage protection trip point for the supply in volts default or in millivolts Resets the supply to the present voltage and current settings if the output is disabled by OVP or foldback protection Enables or disables the power supply s ability to generate a service request Implements programmed voltage and current settings which had been in hold mode Sets an upper soft limit on the supply s programmed output voltage Sets the output voltage of the power supply in volts default or in millivolts Operating Manual for GPIB for XHR XFR Series Power Supply Release 3 1 Operation Command Summary Table 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 status DLY Asks for the programmable time delay s
46. n 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 more information each step refers to more detailed procedures located in subsequent sections Execute each step of the procedure in the sequence given Table 2 1 Setup Procedure Step H Description Action Reference 1 Primary Address Selection 2 PON SRQ Selection 3 Remote Local Operation 4 IEEE 488 Controller Connection 5 Power ON 6 Configure Computer Controller 7 Test Use GPIB interface rear panel switches A1 to A5 to select a unique primary address Setting the address identifies the power supply to the computer controller in a GPIB system Use the rear panel SRQ switch to select the state of the Power ON Service Request Use the rear panel PON REM switch to select remote or local startup of the power supply Connect the IEEE 488 bus to the supply at connector J8 Power on the unit Before proceeding check to ensure that the green REM LED on the front panel is on Configure the controller to match the power supply identification and characteristics using one of the available programs Test the link by communicating with the power supply See IEEE 488 Primary Address Selection on page 24 See Power On Service Request PON SRQ on page 25 See Remote Local Operation on
47. n Rear Panel SRQ Switch Position PON SRQ State 0 PON SRQ Enabled 1 PON SRQ Disabled Remote Local Operation Remote Local Start the power supply either in local mode or in remote mode by setting the power Mode Startup ON remote PON REM switch which is located on the unit s rear panel See Table 2 4 for the switch settings Table 2 4 Remote Local Start up Settings Switch Position Power ON results 0 Unit in remote mode 1 Unit in local mode With the rear panel PON REM switch set to 0 the power supply will start up in remote mode The green REM LED on the front panel will turn on signaling that the power supply is under the control of the digital interface card The output of the power supply is active on startup See Table 2 5 for more information To promote load safety power ON defaults are zero for the output voltage and current limit and 110 of maximum output voltage for the OVP trip point See Section 3 Operation for more information about the interface commands listed in the table Release 3 1 25 Installation and Configuration Remote Local Operation Remote Mode Operation 26 If the rear panel PON REM switch is set to 1 the power supply will power up in local mode Power supply control is at the front panel During an operating session you can toggle between local mode and remote mode by using the front panel LOCAL button and sending commands as described in Remote Mode Operation on page 26 and
48. ndition in the supply See also Accumulated Status Status and Fault Registers on page 50 1 Not used 2 Not used 3 Not used 4 16 Ready Set when power supply is Power supply during ready to accept commands command processing period 5 32 Error ERR Set when ERR bit ERR query asserted in status register See also Accumulated Status Status and Fault Registers on page 50 6 64 Request Service SRQ Set when Serial Poll power supply requests service 7 MSB 128 Power On PON Set when unit CLR or Device Clear initializes at power on Operating Manual for GPIB for XHR XFR Series Power Supply Operation Command Syntax Command Syntax Manual Conventions Command Format and Parameters Release 3 1 The manual uses these conventions when displaying command information These characters are not part of the command but are used to denote parameters used with the command lt gt angle brackets Angle brackets enclose a parameter Do not include the angle brackets in the command line you send to the computer slash Separates two alternative parameters When a slash separates two parameters you can use either parameter to achieve the same result Example lt 1 ON gt Entering 1 or ON will achieve the same result COMPUTER ENTRY Words typed on the computer are shown in Arial text full capitals The device dependent language for the GPIB Interface consists of commands and parameters
49. ng forms e The dated purchase receipt from the original purchase of the product at point of sale to the end user or e The dated dealer invoice or purchase receipt showing original equipment manufacturer OEM status or e The dated invoice or purchase receipt showing the 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 troubleshooting of the customer s electrical systems This warranty does not apply to and Xantrex will not be responsible for any defect in or damage to a the product if it has been misused neglected improperly installed physically damaged or altered either internally or externally or damaged from improper use or use in an unsuitable environment b the product if it has been subjected to fire water generalized corrosion biological infestations and high input voltage from lightning strikes c the product ifrepairs have been done to it other than by Xantrex or its authorized service centers hereafter ASCs d the product if it is used as a component part of a product expressly warranted by another manufacturer e the product if its original identification trade mark serial number markings have been defaced altered or removed Release 3 1 iii Disclaimer Product Exclusions THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED
50. nnector J7 User Signals 30 Auxiliary connector J7 located on the GPIB interface rear panel provides several signals to increase your operating control of the supply These signals are dependent on the operator s design and uses The operation of the J7 signal requires that you provide external Vcc and ground Use a standard 8 position telephone jack and data cable to connect to J7 To locate the connector refer to the GPIB interface subplate drawing in Figure 2 2 on page 21 See Figure 2 4 User Signals J7 Connector on page 30 for pin descriptions The J7 outputs can sink a current of SmA 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 as a reference when making input or output connections J7 1 External TTL shutdown input signal See TTL Shutdown J7 2 Polarity signal open collector asserted by VSET x J7 3 Isolation signal open collector asserted by OUT OFF J7 4 Fault signal open collector asserted when bit set in fault register J7 5 External Vcc 15V maximum supplied by connecting and operating an external source J7 6 External ground and shutdown return supplied by connecting and operating an external source J7 7 Open collector user signal asserted by AUXA ON J7 8 Open collector user signal asserted by AUXB ON Note On some models the J7 connector is rota
51. ntrex Technology Inc 8999 Nelson Way Burnaby British Columbia Canada V5A 4B5 Please record the following information when you first open your Power Supply package Model Number Serial Number Purchased From Purchase Date Release 3 1 2002 06 Copyright 2002 Xantrex Technology Inc All rights reserved Printed in Canada Power Supply Safety Warnings Cautions and Notes hy WARNING High Energy and High Voltage Exercise caution when using and calibrating a power supply High energy levels can be stored at the output voltage terminals on a power supply in normal operation In addition potentially lethal voltages exist in the power circuit and on the output and sense connectors of a power supply with a rated output greater than 40 V Filter capacitors store potentially dangerous energy for some time after power is removed A 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 the power supply as specified in this manual and do not substitute parts or make any unauthorized modifications Contact the service technician for service and repair help Repairs must be made by experienced service technicians only Warnings cautions and notes are defined and formatted in this manual as shown below WARNING Describes a potential hazard which could result in injury or death or a procedure which if not performed c
52. orrectly could result in injury or death CAUTION Describes a procedure which if not performed correctly could result in damage to data equipment or systems Note Describes additional operating information which may affect the performance of the equipment Operating Manual for GPIB for XHR XFR Series Power Supply About This Manual Main Sections This technical manual is for the internal GPIB interface a microprocessor controlled option card for XHR Series and XFR Series DC output power supplies This manual provides you with descriptions and specifications user options and configuration instructions in addition to a command set which enables you to manage the power supply from an external source Error messages and calibration procedures are also included This manual is designed for the user who is familiar with basic electrical theory especially as it applies to the operation of power supplies This implies a recognition of Constant Voltage and Constant Current operation modes and the control of input and output power as well as the observance of safe techniques while effecting supply or pin connections 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 and operating procedures for your power supply Section 1 Features and Specifications Describes the power supply and lists its fea
53. p Procedure ccion i noreo ipe ee eee ee a eee 23 IEEE 488 Primary Address Selection 0 0 00 e eee eee 24 Power On Service Request PON SRQ 0 cece ee 25 Remote Local Operativa cir heer dee Ye ee ee ed beeen 25 Remote Local Mode Startup 0 0 cece tee 25 Remote Mode Operation 00200 c cece tte eee 26 Local Mode Operation 0 eect eee 27 Setting Local Lockout 00 000000 cc eee 27 IEEE 488 Controller Connection 00 00 eee eae 28 Internal PCB Jumper Selections 1 0 0 0 0 eee 28 OVP Selection ico saa Ve ed eel SG a ee eee 28 TITLES AGE Own a kee a us sn A le te en ie E eae Ide 29 User SIGnalS umi tt Se eee tery td ea ee a ee ARTER RE a 30 Connector J7 User Signals 0 0 eects 30 J7 Cable Connection 0 0 00 c ene 31 INntrOdUCHION ws ese cuter A eee ea ae eat 33 GPIB Operation Cit ee eed ou ee aa See cee ae ee aS 33 Multiline Control Functions 00000 0c cee 34 Device Clear ere enned rece Ti See Fin Bae in ogee donee abe dr ae Pee P ENIA ae 34 Device TNQGER vives aku eee Bt a ees at bide RE fre ns ap eles 35 Parallel Polli enren ele ie ee ae a A ee ae 35 local LOCKOUT mare hee Bide ence Soe ade oe ote estes BA steady gee a eevee 35 Service Request c 5 eee ei ees beta eee he ee le ee de Ae ees 36 Serial Polls ces acca tio ini atten le Mace ea ele leat oo Wastin ees a TAS 36 Command Syntax se ita eed eh da eh Ae ee ee eae
54. pply s present output voltage setting Does not apply to voltage settings which are being held See HOLD command Response VSET lt voltage gt 49 Operation Accumulated Status Status and Fault Registers Accumulated Status Status and Fault Registers The GPIB option card uses three separate registers which are always active They are the accumulated status status and fault registers You can use the status commands shown in Table 3 8 Status Commands to activate the registers The bit register has twelve conditions each assigned a bit weight When querying a register the controller returns a response which is the sum of the weights of all relevant conditions Example ASTS Query the Accumulated Status register ASTS lt 771 gt Controller response 771 512 256 2 1 PON REM CC CV Table 3 10 Accumulated Status Status and Fault Registers Condition Mnemonic Bit Position Bit Weight Constant voltage operation CV 0 1 Constant current operation CC 1 2 Not used 2 4 Overvoltage protection tripped OV 3 8 Over temperature protection tripped OT 4 16 Supply external shutdown active J7 1 SD 5 32 Foldback mode operation FOLD 6 64 Remote programming error ERR 7 128 Power ON accumulated status status PON 8 256 registers only Remote mode accumulated status status REM 9 512 registers only AC fail condition ACF 10 1024 Output fail condition OPF 11 2048 Sense protection tripped SNSP 12 4096 Notes 1 Al
55. protection trip point in volts default or in millivolts If the trip point is exceeded or if the trip point 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 accumulated status register Reset with the RST command Range 0 to 110 of model maximum output voltage VMAX Initial value 110 of model VMAX Asks for the supply s present over voltage protection limit Response OVSET lt voltage gt Asks for the version number of the master and slave EPROMs located on the interface PCB Response ROM M lt version gt S lt version gt Resets the supply to present voltage and current settings if the output is disabled by over voltage or foldback protection Output values may be changed via VSET ISET and OVSET while the unit is disabled but those values will not take effect until RST is applied SRQ ON enables the 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 poll register changes from 0 to 1 Therefore the mask register in addition to specifying which conditions set the FAU bit also determines which conditions can generate service requests Ten power supply conditions are defined as faults CB CC OV OTP SD ERR FOLD ACF OPF SNSP Use the FAULT query to discover which condition caused the s
56. s query command ASTS was last used regardless of whether the condition still exists The accumulated status register has the same bits weights and conditions as the status register A bit in the accumulated status register will be set at 1 if the corresponding bit in the status register has been 1 TRUE at any time since the register was last read See Accumulated Status Status and Fault Registers on page 50 The ASTS query clears the status register Response ASTS lt status mask gt where status mask is the decimal equivalent of the total bit weights for the operating conditions as listed in the status register AUXA lt 1 ON gt lt 0 OFF gt Controls the AUXA output signal level at rear panel connector J7 7 Active low Initial value AUXA O AUXA Asks for the present set value of the AUXA output signal Response AUXA 0 OFF AUXA 1 ON AUXB lt 1 ON gt lt 0 OFF gt Controls the AUXB output signal level at rear panel connector J7 8 Active low Initial value AUXB 0 AUXB Asks for the present set value of the AUXB output signal Response AUXB 0 OFF AUXB 1 ON CLR Initializes the power supply to its power ON condition If issued while in local mode CLR will force power supply settings to register default values as in but these default settings will not come into effect until the power supply is switched to remote mode operation The CLR commands will clear faults from the fault register CLR will not reset CMOD
57. sition Reference SW1 Switch Markings 0 1 1 Remote Local Startup 2 Power On Service Request Enable Disable J7 User Signal 3 Not Used Connector 4 8 Primary Address Selection A1 A5 Note On some models the subplate is rotated 180 degrees Figure 2 2 GPIB Interface Subplate Located on Power Supply Rear Panel CAUTION Use proper static control techniques to avoid damage to static sensitive components on the printed circuit board Release 3 1 21 Installation and Configuration Initial Inspection 22 J65 J93 J103 CR89 CR166 CR167 U117 U191 JUMPER SELECTION Local OVP control selection User TTL shutdown S D selection 1 2 User TTL S D line active low Remote OVP Control Selection closed default See page 28 Note All other jumpers are not user selectable Red Diagnostic LED Red Diagnostic LED Green Diagnostic LED Slave EPROM Master EPROM closed default See page 28 open Front Panel OVP Control See page 31 2 3 default User TTL S D line active high open LED INDICATORS Bus error or soft restart on Slave circuitry Soft restart on Master circuitry Bus error on Master circuitry See page 52 EPROMS See revision number stamped on EPROM See revision number stamped on EPROM Figure 2 3 GPIB Interface PCB Operating Manual for GPIB for XHR XFR Series Power Supply Basic Setup Procedure Installation and Configuratio
58. t Example VMAX 500 VSET 550 LF Attempted to program a soft limit less than the output value The controller requested data from the power supply without first sending a query command Sent an OVSET command with a trip value lower than the output voltage The interface PCB slave processor did not respond Attempted calibration when the supply was not in calibration mode See CMODE command 51 Operation Troubleshooting Troubleshooting 52 Diagnostic LEDs WARNING Exercise caution when using and servicing power supplies High energy levels can be stored at the output voltage terminals on all power supplies in normal operation In addition potentially lethal voltages exist in the power circuit and the output connector of power supplies which are rated at 40V and over Filter capacitors store potentially dangerous energy for some time after power is removed This section describes the diagnostic LEDs found on the GPIB interface Computer Operating Properly COP LEDs The GPIB interface provides three diagnostic LEDs located at CR167 CR166 and CR89 on its PCB Refer to Figure 2 3 GPIB Interface PCB on page 22 for their locations At present these LEDs turn on to signal COP events for the interface s microprocessors Issue a RST reset command to turn off the diagnostic LEDs The green COP LED at circuit designation CR167 indicates that the GPIB interface microprocessor successfully recovered from an illeg
59. tage readback calibration values offsets are stored as constants Use commands VSET and VOUT commands to confirm that the calibration was successful and that linearity is observed Refer to the voltage readback accuracy specification in Section 1 Turn off calibration mode by sending the command CMODE OFF or CMODE 0 to the power supply 55 Calibration Current Mode Calibration Current Mode Calibration Current Calibration Setup Current Program Calibration Procedure 56 1 Disconnect the load from the power supply to be calibrated 2 Connect a shunt across the supply s output terminals 3 Connect a voltmeter across the shunt Power Supply Power Supply Positive Output Negative Output Resistor O VOLTMETER Current Sensing Figure 4 2 Current Calibration Setup 1 Connect the shunt and voltmeter to the power supply as shown in Figure 4 2 2 Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply 3 Send command ILO VLO to the power supply Measure and record the output shown on the external voltmeter 4 Send command 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 R 6 Send the command IDATA lt ilo gt lt ihi gt to the power supply lt ilo gt and lt ihi gt are the current values obta
60. ted 180 degrees Figure 2 4 User Signals J7 Connector Operating Manual for GPIB for XHR XFR Series Power Supply J7 Cable Connection Release 3 1 Installation and Configuration User Signals Figure 2 5 J7 User Signal Connector Circuit Block Diagram Use a standard 8 position telephone jack and data cable to connect to J7 Add a ferrite block to reduce radiated emission The one inch square ferrite block with built in housing clip is 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 housing 3 Loop the cable through the ferrite block See Figure 2 6 J7 User Cable with Ferrite Block on page 32 4 Close the housing clip The ferrite block ensures that the power supply system meets radiated emission requirement 89 336 EEC for CE mark approval See the power supply s operating manual for noise specifications 31 Installation and Configuration User Signals 32 EEA yo J7 User Cable Ar Ferrite Block i X 5cm MAX To J7 Connector gi I H 4 To User Custom Interface Figure 2 6 J7 User Cable with Ferrite Block Operating Manual for GPIB for XHR XFR Series Power Supply Section 3 Operation Introduction This section covers GPIB interface programming starting with IEEE 488 func
61. tions continuing with an extensive set of device dependent commands and finally providing error codes and status and fault register information GPIB Operation Release 3 1 A GPIB interface controller card enables you to control an IEEE 488 bus system via computer identifying which of its interconnected devices are to send and receive data Interconnected 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 instructions from a computer controller to a power supply located at a selected IEEE 488 address and then to return responses from the power supply to the computer You will also use the computer controller to issue device dependent commands such as output voltage level and status queries Note This text employs National Instruments IBIC Interface Bus Interactive Control program commands developed for their GPIB interface for computer controllers as examples only 33 Operation GPIB Operation Table 3 1 Mnemonic SH1 Multiline AH1 Control Functions T6 L4 DC1 Interface Functions E El ie Be i SP1 Multiline Control Functions or talk Device Clear Capability Source Handshake Acceptor Handshake Talker Listener Device Clear Device Trigger Open Collector Drivers Parallel Poll Remote Local Service Request Serial Poll IEEE 488 1 Inter
62. tures and specifications Section 2 Installation and Configuration Goes through basic setup procedures Describes inspection cleaning shipping and storage procedures Includes additional options for configuring the GPIB interface for operation Section 3 Operation Lists the complete command set status registers and error codes Section 4 Calibration Provides detailed procedures for voltage and current mode calibration as well as over voltage protection OVP calibration Includes calibration for programming and readback accuracy Manual Revisions Release 3 1 The current release of this manual is listed below Updates may be issued as an addendum Release 3 1 2002 06 vii About This Manual vili Operating Manual for GPIB for XHR XFR Series Power Supply Contents Section 1 Features and Specifications Section 2 Installation and Configuration Section 3 Operation Release 3 1 About This Manual xicas eae cee a oe ce wee i vii Descriptions it A bay on de ceeds do ata dean ae 11 Features and Functions 00 000 cece ete eee 12 Features ai a Santen dia Ws e Sead 12 Programmable Functions 0000 0c eee eee tees 12 Readback Functions 0 000 ccc eee tenes 12 Specifications s nida tea o Meet ante FA eh cee ee Se eG Bee eee 13 IntrOdUCHION svs dann seattle es ala ts tous wee terse NER NN ar 19 Initial NSPECHON 72 52 se cede bk be Rees dose ek ded bee ae eee 19 Basic Setu
63. x If you send more than one command line separate the commands with a semicolon The semicolon may be preceded or followed by spaces Example ISET 2 0A VSET 5V ISET 2 0A VSET 5V Terminators indicate the end of a command string and tell the power supply to execute the command The termination character is LF Line Feed Format COMMAND lt parameter gt COMMAND lt parameter gt lt parameter gt lt LF gt Most computer controllers automatically send LF with output statements You may send commands in any order keeping in mind that only those commands received after a HOLD and before a TRG trigger will be released by the TRG command In addition only these commands received after a supply disable and before a RST reset or OUT ON command will be released by the RST command or the OUT command Commands are executed in the order they are received 39 Operation Command Summary Command Summary Use these commands to control the operation of the supply They are listed here in order of function such as PROGRAMMING QUERY CALIBRATION and STATUS commands See Command Reference on page 43 for more detailed information about each command and its use Table 3 5 Programming Commands Command Description AUXA AUXB CLR DLY FOLD HOLD IMAX ISET OUT OVSET RST SRQ TRG VMAX VSET 40 Selects the state of the AUXA output signal on the J7 7 connector Selects the state of the AUXB output signa

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