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Operating Manual

Internal RS-232 Interface
for XT/HPD Series
Programmable DC
Power Supplies

RS232-XT

RS232-HPD

Summary of Contents for RS232-HPD

Page 1: ...Operating Manual Internal RS 232 Interface for XT HPD Series Programmable DC Power Supplies RS232 XT RS232 HPD ...

Page 2: ......

Page 3: ...Operating Manual for Internal RS 232 Interface for XT 60 Watt and HPD 300 Watt Series Programmable DC Power Supplies ...

Page 4: ...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 shipment to the customer whichever is greater All replaced products and all parts removed from repaired products become the property of Xantrex Xant...

Page 5: ...he 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...

Page 6: ...VENT 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...

Page 7: ...our 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 Xantrex Technology Inc 8999 Nelson Way Burnaby British Columbia Canada V5A 4B5 Information About Your Power Supply Pl...

Page 8: ... energy 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 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 ex...

Page 9: ...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 Main Sections Section 1 Features and Specifications Describes the interface and lists its features and specif...

Page 10: ...About This Manual viii Operating Manual for RS 232 for XT HPD Series Power Supply ...

Page 11: ...2 Hardware Flow Control 23 Connections 24 Transmit Receive Pin Selection 24 Removing the cover 24 Remote Local Operation 25 Remote Local Switch 25 LOC Command 25 Local Mode Disable Jumper J95 25 Remote Mode Operation 26 Local Mode Operation 26 RS 232 Connection 27 Power Supply Settings 28 User Options and Settings 29 OVP Selection 29 TTL Shutdown 30 User Signals 31 Connector J7 User Signals 31 J7 ...

Page 12: ...ting 52 Diagnostic LEDs 52 Section 4 Calibration Introduction 53 Voltage Mode Calibration 54 Voltage Calibration Setup 54 Voltage Program Calibration Procedure 54 Voltage Readback Calibration Procedure 55 Current Mode Calibration 56 Current Calibration Setup 56 Current Program Calibration Procedure 56 Current Readback Calibration Procedure 57 Over Voltage Protection OVP Calibration 58 ...

Page 13: ...ween the computer and the interface The RS 232 interface has an extensive command set and uses most of the user programmable features employed by all of our interfaces In addition to the RS 232 port and its interface this remote control application requires a computer based communications software package such as PROCOMM XTALK Windows Terminal Program equivalent communications software or low leve...

Page 14: ...gnals error address remote local operation and over voltage protection Foldback in CV or CC mode with reset Software calibration Programmable Functions Output voltage and current Soft limits for voltage and current Over voltage protection Output enable disable Maskable fault interrupt Hold and trigger Output relay signals Readback Functions Actual voltage and current Voltage and current settings S...

Page 15: ...acy1 Voltage Current OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model XT 15 4 power supply to 10 volts The expected result will be within the range of 10 volts 20mV 0 1 of the set voltage of 10 volts 10mV 0 1 110mA 0 15 70mV 20mV 0 1 70mA 0 15 150mV 20mV 0 15 50mA 0 15 200mV 30mV 0 15 40mA 0 15 300mV 200mV 0 15 26mA 0 2 600mV 400mV 0 15 13...

Page 16: ...ogram Accuracy1 Voltage Current OVP 1 Apply accuracy specifications according to the following voltage program accuracy example Set a model HPD 15 20 power supply to 10 volts The expected result will be within the range of 10 volts 20mV 0 1 of the set voltage of 10 volts 60mV 0 1 75mA 0 12 150mV 70mV 0 1 50mA 0 12 300mV 90mV 0 12 25mA 0 1 600mV Readback Resolution Voltage Current 2 4mV 2 8mA 4 7mV...

Page 17: ...ront panel the interface subplate and the RS 232 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 RS 232 interface board installed and manuals for the power supply and the RS 232 interface Any additional parts shipped with the power supply will be identified in the supply s docume...

Page 18: ...gure 2 2 Power Supply Rear Panel with RS 232 Interface Installed Remote Mode REM LED Service Request SRQ LED GPIB Only Over Voltage Protection OVP LED OVP Potentiometer RS 232 Connector Address LED ADR SW1 Switch 1 Remote Local Mode Selection 2 3 Not Used 4 CTS XO Flow Control Selection 5 Flow ON OFF Selection 6 8 B1 B3 Baud Rate Selection 0 1 Error LED ERR J7 User Signal Connector ...

Page 19: ...Installation and Configuration Initial Inspection Release 1 1 17 Figure 2 3 RS 232 Interface PCB See next page for designation descriptions ...

Page 20: ...4 2 Receive on pin 3 J8 RS 232 flow control selection of RTS CTS ready to send clear to send or DTR DSR data terminal ready data set ready 2 4 3 5 default RTS input on pin 7 used with CTS output on pin 8 2 4 1 3 DTR input on pin 4 used with DSR output on pin 6 J9 RS 232 flow control selection of RTS CTS or DTR DSR 1 3 4 6 default CTS output on pin 8 used with RTS input on pin 7 3 5 4 6 DSR output ...

Page 21: ... is a commonly used serial communications protocol that defines how to transmit data between a computer and a programmable instrument It uses a point to point communication protocol with a transmitter sending data to a receiver one bit at a time over a single communication line Serial communication is accessible via the serial ports on most computers For proper communication through the RS 232 ser...

Page 22: ... Operation on page 25 4 RS 232 Connection Connect the RS 232 cable assembly to the supply at connector J4 See RS 232 Connection on page 27 5 User Signal Connector Configure and use the J7 connector signals if required See Connector J7 User Signals on page 31 6 Power ON Power on the unit Before proceeding check to ensure that the green REMOTE LED on the front panel is on See User Options and Settin...

Page 23: ...mission in bits per second Table 2 2 Switch S1 Settings for Baud Rate summarizes the switch settings with the reference markings on the rear panel subplate Refer to Figure 2 2 on page 16 for the location of the SW1 switch on the RS 232 interface subplate Table 2 2 Switch S1 Settings for Baud Rate 0 OPEN OFF 1 CLOSED ON Note When resetting switches B3 B2 and B1 during a working session turn the pow...

Page 24: ... uses XON XOFF protocol while with hardware flow control you have the choice of RTS CTS or DTR DSR protocol Table 2 4 shows the flow control conditions in reference to the CTS XO switch To change the hardware flow control protocol refer to Table 2 3 in this section Figure 2 2 Power Supply Rear Panel with RS 232 Interface Installed on page 16 shows the location of the SW1 switch on the power supply...

Page 25: ... RTS CTS Flow Control Default and Table 2 6 Jumper Pin Settings for DTR DSR Flow Control Default identify jumper connections and input and output pin designations for each protocol See also Transmit Receive Pin Selection on page 24 for RS 232 connector pinouts Note When resetting the flow control switches during a working session turn the power supply OFF and then ON again to put the new settings ...

Page 26: ...e RS 232 connector in relation to the settings of the J7 jumper See Figure 2 3 RS 232 Interface PCB on page 17 to locate jumper J7 Table 2 8 Jumper Settings for Transmit Receive Pin Selection Removing the cover In order to access the J7 jumper or the J95 jumper see page 25 you will need to remove the cover First turn the unit upside down and remove the 6 small screws 3 to each side on the bottom o...

Page 27: ... Local Mode Disable Jumper J95 is closed you can select between operating the power supply in either local mode or remote mode by using the rear panel remote local switch or by using the software LOC command With jumper J95 open you can only operate the power supply in remote mode Opening the J95 jumper disables the rear panel remote local switch and the front panel voltage and current knobs You c...

Page 28: ...ration 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 Condition Default Settings 60 W 7 6 Model Example Voltage 0 V VSET 0 Current 0 A ISET 0 Soft Voltage Limit VMAX see models VMAX 7 Soft Current Limit IMAX see models ...

Page 29: ...he rear panel Figure 2 4 shows the connector pinouts for the RS 232 connector Refer to Figure 2 2 on page 16 for the position of the RS 232 connector on the rear panel subplate Figure 2 4 RS 232 Connector J4 Pinouts default configuration WARNING Do not operate the power supply and the computer at significantly different frame potentials The interface connection system may not be capable of handlin...

Page 30: ...ication settings Make sure that the settings of the computer and of the power supply agree with those shown in Table 2 12 Table 2 12 Power Supply Settings Parameter Setting Transmission Asynchronous Mode Full Duplex Speeds 75 150 300 600 1200 2400 4800 9600 Parity None Connector DB9 pin Male Start Bit 1 Stop Bit 1 Data Bits 8 Protocols XON XOFF Software flow control CTS RTS DSR DTR Hardware flow c...

Page 31: ...ower ON default settings You can isolate the location of OVP control by changing the positions of the Local OVP Control jumper J95 and the Remote OVP Control jumper J217 both on the RS 232 interface PCB 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 softw...

Page 32: ...ne uses a 0 5Vdc TTL input with a high signal range of 2 2 5 0Vdc The current range of the shutdown line is 1 10mA See Figure 2 6 J7 User Signal Connector Circuit Block Diagram on page 32 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 J117 connector on the RS 232 PCB Table 2 14 shows the TTL signal levels for th...

Page 33: ...he J7 outputs can sink a current of 5mA each Figure 2 6 on page 32 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 Figure 2 5 User Signals J7 Connector 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 coll...

Page 34: ...f the J7 user cable 2 Open the ferrite block housing 3 Loop the cable through the ferrite block See Figure 2 7 J7 User Cable with Ferrite Block on page 33 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 J7 12 MCT6 U74 1 2 3 4 5 6 7 8 1...

Page 35: ...Installation and Configuration User Signals Release 1 1 33 Figure 2 7 J7 User Cable with Ferrite Block J7 User Cable Ferrite Block To User Custom Interface To J7 Connector ...

Page 36: ...Installation and Configuration User Signals 34 Operating Manual for RS 232 for XT HPD Series Power Supply ...

Page 37: ...d set of device dependent software commands shown in Command Reference on page 42 Command Syntax Manual Conventions 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 angle brackets Angle brackets enclose a parameter Do not include the angle brackets in the command line you send ...

Page 38: ...rameter 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 FOLD MASK FOLD MASK FD 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 di...

Page 39: ...t is volts float float V float mV fault mask A combination of CV CC OV SD and FOLD See MASK and UNMASK commands in the command reference for use of the ALL and NONE parameters See registers on page 49 status mask A combination of CV CC OV SD FOLD ERR and REM See MASK and UNMASK commands in the command reference for use of the ALL and NONE parameters See registers on page 49 other Command specific ...

Page 40: ...n character is CR carriage return Format COMMAND parameter COMMAND parameter parameter CR Most computer controllers automatically send LF with output statements Order 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...

Page 41: ...oltage 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 programmed output current for the supply ISET Sets the output current of the supply in amps default or in milliamps LOC Enables or disables local mode operation for the power supply OUT Enables or disables voltage curre...

Page 42: ... the supply s present foldback setting HOLD Asks 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 output ISET Asks for the supply s present output current limit setting LOC Asks whether or not the supply is in local mode operation OUT Asks for the pres...

Page 43: ...amming 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 readback VRHI Sets the voltage output to the high readback point VRLO Sets the voltage output to the low readback point Command Description ASTS Asks for the supply s accumulated status register FAULT Asks for the supply s fa...

Page 44: ...otal bit weights for the operating conditions as listed in the status register AUXA 1 ON 0 OFF Sets the AUXA output signal level at rear panel connector J7 7 Active low Initial value AUXA 0 AUXA Returns the present set value of the AUXA output signal Response AUXA 0 OFF AUXA 1 ON AUXB 1 ON 0 OFF Controls the AUXB output signal level at rear panel connector J7 8 Active low Initial value AUXB 0 AUXB...

Page 45: ...he accumulated status register See Error Codes on page 51 Response ERR error number Example ERR 0 if no error FAULT Returns 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 ...

Page 46: ... 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 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 procedu...

Page 47: ...mmed 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 ISET current 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 cu...

Page 48: ... 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 OVSET Returns the supply s present over voltage protection li...

Page 49: ...sk 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 49 VDATA Vlo Vhi 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 Vlo...

Page 50: ...se 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 VRLO The power supply outputs a voltage value to an external voltmeter connected as part of the calibration procedure and records a voltage readback value internal...

Page 51: ...h 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 The accumulated status register shows that PON REM CC and CV have all been active since the last accumulated status register query Table 3 8 shows the mnemonics and bit weights which correspond to each register condition You can select conditions you...

Page 52: ... ERR 3 The accumulated status register is cleared with an accumulated status query ASTS 4 A fault is cleared with a fault query FAULT 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 Not used 4 16 Supply external shutdown active J7 1 SD 5 32 Foldback mode operation FOLD 6 64 Remote prog...

Page 53: ...String Received an invalid command Syntax Error Received an incorrectly 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 Limits Attempted to program a voltage or current greater than the soft limit Example VMAX 500 VSET 550 LF 7 Improper Soft Limit Attem...

Page 54: ...ace microprocessor successfully recovered from a timeout error due to a communications bus error The event is transparent to the RS 232 communications line continues to function normally The red COP LED at CR14 indicates that a transparent restart caused by noise in the master processor circuitry has occurred The red COP LED at CR141 indicates that a transparent restart caused by noise in the slav...

Page 55: ...eads 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 An RS 232 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 calib...

Page 56: ...O 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 vlo vhi where vlo and vhi 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 calibrat...

Page 57: ... output voltage shown on the external voltmeter Send VRHI again 5 Send the command VRDAT vlo 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 supply is calibrated the low to high voltage readback calibration values offsets are stored as constants 6 ...

Page 58: ... 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 ilo ihi to the power supply ilo and ihi are the current values obtained from se...

Page 59: ...tage 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 power supply ilo and ihi are the current values obtained from sending the IRLO and IRHI commands to the power supply When the power supply is calibrated the low to high current readback calibration ...

Page 60: ...ed p 18 for the location on the PCB of jumper J95 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 ADDR LED will light during OVP calibration Calibration is complete when the ADDR LED turns off This may take a few minutes 5 Use the OVSET OVSET and VSET commands to trip the OVP level confirming that the calibrati...

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Page 62: ...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 RS6H 01XN PRINTED IN CANADA ...

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