Xantrex RS232-XPD User's Manual
Contents
1. 20 0 0 cc eee eee 20 Software Flow Control 0 0 0 0 ccc ee eee ees 21 Hardware Flow Control 0 0c ccc ee eee eens 21 Connections sa srt A ee BL OE aE a eS 22 Transmit Receive Pin Selecti0N ooooooooooooooooo 22 Remote Local Operation viii eet ee eae ad es ee ee ee Se ee 23 Remote Local Mode Startup 0 cee tee 23 Remote Mode Operation 0 0 0 cette 24 Local Mode Operation ben prisni bebe bee eae ns 24 Remote Enable REM Command 0 0 00 eee eee 25 RS 232 CONNCCHION anea a a bl cont a Toca eed ii 26 Power Supply SettingS occiso caise oshe ee ebb bebo e ee eae eb bed cree bese 27 User Options and Settings 0 0 0 ete 28 OVP SGEIECTION dui a aaa D E 28 TEL SHUTAOWN ii a den ble Went ade 29 User SignalS oido ecb eda gee baba eal a e 30 Connector J21 User Signals 0 cece eee 30 J21 Cable CONNECT NE el ea wed 31 INTFOdUCIONE alcista 33 RS 232 Operation Tera r enei td e alcaide 33 Command Syntax ms ty ride Syse a A A Be E 33 Manual Conventions o ooooo eee eee eae 33 Command Format and Parameters 00000 e eee eee ee eee 34 Command StringS sieri ieoa a i o a EE a a aA 35 Command Terminators o 36 AA A A OS E a r AA 36 Command SUMMA Ya a Gusher hl glace a ea ee a 37 Command Reference 40 Contents Accumulated Status Status and Fault Registers 2 0 0055 47 Error CodeS a peria2. 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 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 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 47 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 47 Calculates and records the slope an
3. s present over voltage protection limit Response OVSET lt voltage gt Remote Enable When set to REM 0 the power supply is in local mode If a command is sent from the computer the power supply does not respond but remains in local mode When set to REM 1 the power supply will enter remote mode if a command is sent from the computer See also Remote Local Operation on page 23 Asks for the state of the remote enable See REM command Response REM lt state 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 Operating Manual for RS 232 for XPD Series Power Supply Command STS TRG UNMASK lt mnemonics gt UNMASK VDATA lt Vlo gt lt Vhi gt VHI Release 1 2 Operation Command Reference Description 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 47 Response
4. Specifications Specifications 14 Operating Manual for RS 232 for XPD 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 e serial extender cable straight through e computer with an RS 232 interface serial port e computer based communications software package The RS 232 interface is usually installed 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 RS 232 Interface enhanced supply for your system using the Basic Setup Procedure on page 19 Refer also to Figure 2 1 on page 16 Figure 2 2 on page 17 and Figure 2 3 on page 18 for drawings of the front panel the interface subplate and the RS 232 interface printed circuit board PCB Initial Inspection Release 1 2 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 e 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 documentation e Inspect the unit for any si
5. 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 RS 232 for XPD 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 following forms e The dated purchase receipt from the original purchase of the
6. 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 front panel LOCAL switch When LLO is in effect you can only return to local mode using the GTL command You can remove the local lockout with the REM command See also Remote Local Operation on page 23 Disables the supply s previously unmasked operating conditions from setting bits in the fault and status registers See Accumulated Status Status and Fault Registers on page 47 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 43 Operation Command Reference Command OUT lt 1 ON gt lt 0 OFF gt OUT OVCAL OVSET
7. 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 VRLO 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 outp
8. lt voltage gt OVSET REM lt 1 ON gt lt 0 OFF gt REM ROM RST 44 Description 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 J21 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 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 J2 on the RS 232 Interface PCB is connected for remote operation Sets the supply s over voltage 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
9. the jumper settings you can isolate the location of OVP control to software control only or front panel control only Table 2 12 OVP Control Mode Selection shows a table of jumper settings and OVP programming selection Refer to Basic Setup Procedure on page 19 for the positions of the jumpers on the RS 232 PCB Table 2 12 OVP Control Mode Selection PCB JumperJ2 PCB Jumper OVP Programming Selection Position J20 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 Operating Manual for RS 232 for XPD Series Power Supply TTL Shutdown Release 1 2 Installation and Configuration User Options and Settings You can use the Shutdown function to disable or enable the supply s output 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 RS 232 interface installed TTL shutdown is activated by a TTL signal to Pin of the J21 connector on the interface subplate The shutdown user line 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 J21 User Signal Connector Circuit Block Diagram on page 31 for a schematic of the J21 connector containing the shutdown user li
10. version number of the master and slave EPROMs on the interface PCB 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 38 Operating Manual for RS 232 for XPD Series Power Supply Operation Command Summary Table 3 5 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 the 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 6 Status Commands Command ASTS FAULT MASK STS UNMASK UNMASK Release 1 2 Description Asks for the supply s accumulated status register Asks for the supply s fault register for the status preset operating co
11. A 4B5 Please record the following information when you first open your Power Supply package Model Number Serial Number Purchased From Purchase Date Release 1 2 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 correctly could result in injury or death CAUTION Describes a procedure
12. D 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 FORA 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 Some states and provinces do not allow limitations or exclusions on implie
13. Smart choice for power xantrex RS232 XPD Operating Manual Internal RS 232 Interface for XPD Series Programmable DC Power Supply www xantrex com xantrex Operating Manual for Internal RS 232 Interface for XPD 500 Watt Series Programmable DC Power Supply 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 RS 232 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 shipment to the customer whichever is greater All replaced products and
14. T OFF J21 4 Fault signal open collector asserted when bit set in fault register J21 J21 5 External Vcc 15V maximum supplied by connecting and operating an external source J21 6 External ground and shutdown return supplied by connecting and operating an external source J21 7 Open collector user signal asserted by AUXA ON J21 8 Open collector user signal asserted by AUXB ON Figure 2 5 User Signals J21 Connector Operating Manual for RS 232 for XPD Series Power Supply J21 Cable Connection Release 1 2 Installation and Configuration User Signals 5 u12 n i 1 AA J1 8 J13 SHUTDOWN Joy 5 zl 5R CRA 4 p 3 D EXT VC JM 1 Jia J21 5 C42 se Pen y 9 7 AB org Yeo C32 5R56 C RSO E ean R49 D 3 330R FS 1K0 1 z Pa n 9 PAULO og 5V lt 10 2 Y hg MCTE R49 R5Q C 4 A AUYA J1 5 ya PU J21 7 essen eto a s 4035 Ln Vi6 B R49 B 330R 2 5Y Y R50 A ety ame 9 6 gt gt POLARITY Jog SE 1 7 53 330R R50 8 4 6 2 oe ISOLATIO J19 A d21 3 y R56 E 32 10k0 1 TE 330R G 4 122 B 7 ama 93 gt EXT GND Jog Figure 2 6 J21 User Signal Connector Circuit Block Diagram Use a standard 8 position telephone jack and data cable to connect to J21 Add a ferrite block to reduce radiated emission The one inch square ferrite block with built in housing clip is packaged and shipped with the power supply interface card To install the ferrite block 1 4 Position the block n
15. T ON command will be released by the RST command or the OUT command Commands are executed in the order they are received Operating Manual for RS 232 for XPD Series Power Supply Command Summary Operation 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 40 for more detailed information about each command and its use Table 3 3 Programming Commands Command Description AUXA AUXB CLR DLY GTL FOLD HOLD IMAX ISET LLO OUT OVSET RST TRG VMAX VSET Release 1 2 Selects the state of the AUXA output signal on the J21 7 connector Selects the state of the AUXB output signal on the J21 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 Sends the supply to local mode 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 Local Lockout Disables the front panel LOCAL button Enables or disables voltage current output for the supply Sets the over voltage protection trip point for the suppl
16. ULT 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 47 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 41 Operation Command Reference Command FOLD GTL 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 42 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 Go to local Returns the power supply to local control See LLO Local Lockout See also Remote Local Operation on page 23 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
17. ack Calibration Procedure Release 1 2 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 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 55 Calibration Over Voltage Protection OVP Calibration Over Voltage Protection OVP Calibration 56 We recommend that you perform OVP calibration every six months Con
18. ating Point Number lt float gt Variables sent with command parameters are floating point numbers Table 3 2 defines the structure of floating point numbers for use with the software commands Table 3 2 Floating Point Numbers Floating Number Definition Example The floating point number has four significant figures 1 234 It can be of either sign positive or negative 1 234 1 234 A floating point number can have one decimal point 0 123 1 2 123 4 Scientific Notation 123 0E 1 Use E or e after the number for a base ten exponent 1 2E 1 An integer of either sign must follow an exponent 10 00E 1 Command Ifyou send more than one command line separate the commands with a semicolon Strings The semicolon may be preceded or followed by spaces Example ISET 2 0A VSET 5V ISET 2 0A VSET 5V Release 1 2 35 Operation Command Syntax 36 Command Terminators Order 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 OU
19. cated 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 REM is ON then sending any software command and OUT ON to restore the output Return to local mode by using the GTL command to send Operating Manual for RS 232 for XPD Series Power Supply Remote Enable REM Command Release 1 2 Installation and Configuration Remote Local Operation the power supply into local mode or use the REM OFF command to turn off LLO and return the power supply to local mode When you toggle to remote mode from local mode the power supply has the same conditions are were last set You can use the Remote Enable command to toggle between local mode and remote mode The default setting at startup is REM ON With the remote enable command set at REM ON you can return the power supply to remote mode whenever you send any command from the computer Any time that you change from local to remote mode during a session the output is programmed to turn off since the remote mode settings may be different from the local mode settings Send the OUT ON command to restore the output You can turn off Remote Enable and move power supply control to the front panel by sending the REM OFF command To check whether the power supply is remote enabled use the REM query command Example REM ON Enable the power
20. cing 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 RS 232 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 RS 232 Interface for e Voltage program e Voltage readback e Current program e Current readback e Overvoltage protection The following equipment will 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 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 calibrat
21. d 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 input with the VDATA command Set CMODE ON before using this command See also the calibration procedures in Section 4 45 Operation Command Reference Command VLO 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 46 Description 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 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
22. d 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 RS 232 for XPD Series Power Supply Information WARNING Limitations on Use Information About Your Power Supply Release Release 1 2 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 Xantrex Technology Inc 8999 Nelson Way Burnaby British Columbia Canada V5
23. dyrare ios ib debia 49 TrOUDIESHOONNG issa oaser dre ite A ee e s 50 Diagnostic LEDS ees ds 4 nse a oe ea deep edie oe 50 Section 4 Introduction 2 0 0 cece een tenn eee eens 51 Calibration Voltage Mode Calibration 0 0 0 0 0 ccc cece auer eeoa 52 Voltage Calibration Setup 0 eee 52 Voltage Program Calibration Procedure 0 0 eee eee 52 Voltage Readback Calibration Procedure 0 0 eee eee o 53 Current Mode Calibration 2 0 2 0 cette ee 54 Current Calibration Setup 0 2 eae 54 Current Program Calibration Procedure 0 00 ss ser ss ss sea 54 Current Readback Calibration Procedure 0 0 cece eee 55 Over Voltage Protection OVP Calibration o oooooooommommoo o 56 x Operating Manual for RS 232 for XPD Series Power Supply Section 1 Features and Specifications Description The RS 232 Interface is a microprocessor controlled option card for all models of the XPD Series of DC output power supply Installed internally the RS 232 interface card gives you remote digital control of simple test systems It features fast 16 bit resolution for programming and readback and uses bit serial protocol for sending data between 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 cont
24. e Table 2 2 Switch S1 Settings for Baud Rate Baud Rate B3 B2 B1 9600 1 1 1 4800 0 1 1 2400 1 0 1 1200 0 0 1 600 1 1 0 300 0 1 0 150 1 0 0 75 0 0 0 0 OPEN OFF 1 CLOSED ON Note When resetting switches B3 B2 and B1 during a working session turn the power supply OFF and then ON again to ensure that the new settings are put into effect Flow control signals regulate data flow for proper communication Use the FLOW switch on the rear panel S1 switch to select flow control or to disable flow control With flow control enabled you can use either software or hardware protocols to control flow rates Table 2 3 gives the FLOW switch settings with regards to the markings on the subplate rear panel For a diagram of the rear panel subplate see Figure 2 2 on page 17 Table 2 3 Flow Control Section FLOW Switch Setting Condition 1 Disable Flow Control 0 Enable Flow Control Operating Manual for RS 232 for XPD Series Power Supply Software Flow Control Hardware Flow Control Release 1 2 Installation and Configuration Communications Once flow control is selected as option two flow control methods are available You can use the rear panel XON switch to select either software based XON XOFF flow protocol or hardware based CTS RTS or DTR DSR flow protocol Table 2 4 shows the flow control conditions with regards to the markings on the rear panel subplate For a diagram of the rear panel subplate see Figure 2 2 on pag
25. e 17 Table 2 4 Hardware Software Flow Control Selection XON Switch Setting Condition 1 Hardware Flow Control CTS RTS or DTR DSR protocol 0 Software Flow Control XON XOFF protocol This software protocol uses special characters that synchronize device communications The device sends the control code XOFF ASCII value 13 hex when it is not ready to receive data The device sends the control code XON ASCII value 11 when it is ready to resume recelving data To choose XON XOFF protocol select the XON switch position shown in Table 2 4 Hardware flow control protocol requires a dedicated control line on the RS 232 cable The dedicated control line is needed so that the device can signal the controller when it is ready to receive data You can designate either RTS CTS or DTR DSR protocol for the RS 232 interface Set the XON switch for hardware control using the information in Table 2 4 With hardware flow control selected RS 232 Interface PCB jumpers J16 and J17 dictate the type of flow protocol Table 2 5 Jumper Pin Settings for RTS CTS Flow Control Default and Table 2 6 Sumper 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 22 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
26. e information about the interface commands listed in the table If the rear panel PON REM switch is set to 1 the power supply will power up in local mode Power supply control is atthe front panel During an operating session you can toggle between local mode and remote mode by sending commands as described in Table 2 10 23 Installation and Configuration Remote Local Operation Remote Mode 24 Operation Local Mode Operation Table 2 10 Remote Mode Power On Conditions Condition Default Settings 7 5 140 Model Example Voltage OV VSET 0 Current OA ISET 0 Soft Voltage Limit VMAX see models VMAX 7 5 Soft Current Limit IMAX see models IMAX 140 OVP Trip Voltage Model VMAX 10 OVSET 8 25 Delay 0 5s DLY 0 5S Remote Enable ON REM ON Foldback Protection OFF FOLD OFF Output ON OUT ON Hold OFF HOLD OFF Unmask NONE UNMASK NONE AUXA OFF AUXA OFF AUXB 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 for a complete list of device dependent commands available with this interface From remote mode change to local mode operation by sending either the GTL Go to Local command or the REM Remote Enable OFF command To return to remote mode ensure that the REM command is set to ON and then send any valid device dependent command In local mode operation you set the voltage and current output levels and the OVP trip level with controls lo
27. ft restart on Slave circuitry Soft restart on Master circuitry Bus error on Master circuitry EPROMS See revision number stamped on EPROM See revision number stamped on EPROM Figure 2 3 RS 232 Interface PCB 18 Operating Manual for RS 232 for XPD Series Power Supply Basic Setup Procedure Installation and Configuration Basic Setup Procedure This procedure can be used as a quick reference for those familiar with the configuration requirements for the RS 232 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 Description Action Reference 1 Baud Rate Selection 2 Flow Control Selection 3 Remote Local Operation 4 RS 232 Connection 5 User Signal Connector 6 Power ON 7 Power Supply Settings 8 Test Release 1 2 Select transmission speed Set flow control ON or OFF If flow control is set ON choose software based XON XOFF or hardware based CTS RTS Clear to Send Ready to Send or DTR DSR Data Terminal Ready Data Set Ready communication control Use the rear panel PON REM switch to select remote or local startup of the power supply Connect the RS 232 cable assembly to the supply at connector J4 Configure and use the J21 connector signals if required Power on the unit Before pr
28. g 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 RS 232 interface Computer Operating Properly COP LEDs The RS 232 interface provides three diagnostic LEDs located at D5 D4 and D1 on its PCB Refer to Figure 2 3 RS 232 Interface PCB on page 18 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 D5 indicates that the RS 232 interface 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 D4 indicates that a transparent restart caused by noise in the master processor circuitry has occurred The red COP LED at D1 indicates that a transparent restart caused by noise in the slave processor circuitry has occurred Operating Manual for RS 232 for XPD Series Power Supply Section 4 Calibration Introduction Release 1 2 WARNING Exercise caution when using and servi
29. gns 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 the Manufacturer in the manual shipped with your complete unit 15 Installation and Configuration Initial Inspection CAUTION Use proper static control techniques to avoid damage to static sensitive components on the printed circuit board Service Request LED SRQ ae Only used for GPIB option A A 7 A A 5 AS as lt y O lt gt A Y Yo LY LUV UY Y Remote LED REM re PL N ol Io Figure 2 1Power Supply Front Panel with RS 232 Interface Installed 16 Operating Manual for RS 232 for XPD Series Power Supply Release 1 2 Installation and Configuration Initial Inspection Address LED ADR a S1 Switch Indicates that the unit is D EJ 50 1 Remote Local Startup being addressed by the E DA 2 Power On Service Request master controller R Ls Enable Disable I a BIE 3 Not Used 0 I 4 8 Primary Address Error LED ERR Selection A1 A5 Indicates that a programming error has occurred Clear with error query command Switch Position Reference markings al 0 1 IEEE 488 Connector JI5 IEEE 488 M9B J21 User Signal IL Connector Ja
30. ion procedures in this section are designed to be performed at an ambient temperature of 25 C 5 C 51 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 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 s
31. 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 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 progra
32. l Figure 2 2 RS 232 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 17 Installation and Configuration Initial Inspection J3 User TTL shutdown S D selection J20 Remote OVP Control Selection J10 RS 232 J4 transmit and receive pin selection J16 RS 232 flow control selection of RTS CTS ready to send clear to send or DTR DSR data terminal ready data set ready J17 RS 232 flow control selection of RTS CTS or DTR DSR D1 Red Diagnostic LED D4 Red Diagnostic LED D5 Green Diagnostic LED U18 Slave EPROM U1 Master EPROM M9B JUMPER SELECTION J2 Local OVP control selection closed default See page 28 open Front Panel OVP Control 1 2 User TTL S D line active low See page 31 2 3 default User TTL S D line active high closed default See page 28 open 3 1 Receive on pin 3 default 4 6 Transmit on pin 2 default 3 5 Receive on pin 2 4 2 Transmit on pin 3 1 3 4 6 default RTS input on pin 7 used with CTS output on pin 8 3 5 4 6 DTR input on pin 4 used with DSR output on pin 6 2 4 3 5 default CTS output on pin 8 used with RTS input on pin 7 2 4 1 3 DSR output on pin 6 used with DTR input on pin 4 Note All other jumpers are not user selectable LED INDICATORS Bus error or so
33. librated 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 obtained 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 RS 232 for XPD Series Power Supply Current Readb
34. mber 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 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 34 Operating Manual for RS 232 for XPD Series Power Supply Table 3 1 Command Parameters Parameter Description lt current gt lt Ihi gt lt llo gt The current in amps or milliamps If no unit is given the default unit is amps lt time gt The time in seconds or milliseconds If no unit is given the default unit is seconds lt voltage gt lt Vlo gt lt Vhi gt The voltage in volts or millivolts If no unit is given the default unit is volts lt mnemonics gt 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 lt state gt The state of a binary condition Operation Command Syntax Form lt float gt 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 47 lt 1 ON 0 OFF gt Flo
35. mmed 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 Operating Manual for RS 232 for XPD Series Power Supply Command IOUT IRDAT lt llo gt lt lhi gt IRHI IRLO ISET lt current gt ISET LLO MASK lt mnemonics gt Release 1 2 Operation Command Reference Description Measures the supply s actual current output using the built in current readback circuitry Response IOUT lt current gt Calculates and records the slope and offset for readback voltage using IRLO and IRHI 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
36. nal level at rear panel connector J21 7 Active low Initial value AUXA 0 Asks for the present set value of the AUXA output signal Response AUXA 0 OFF AUXA 1 ON Controls the AUXB output signal level at rear panel connector J21 8 Active low Initial value AUXB 0 Asks for the present set value of the AUXB output signal Response AUXB 0 OFF AUXB 1 ON 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 CMODE CMODE ON places the power supply into calibration mode for processing calibration commands Initial value CMODE OFF or CMODE 0 Asks for the power supply s calibration mode status Response CMODE 0 disabled CMODE 1 enabled Operating Manual for RS 232 for XPD Series Power Supply Command DLY lt seconds gt DLY ERR FAULT FOLD lt 2 CC gt lt 1 CV gt lt 0 OFF gt Release 1 2 Operation Command Reference 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 powe
37. nditions 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 39 Operation Command Reference 40 Command Reference Table 3 7 Command Reference Command ASTS AUXA lt 1 ON gt lt 0 OFF gt AUXA AUXB lt 1 ON gt lt 0 OFF gt AUXB CLR CMODE lt 1 ON gt lt 0 OFF gt CMODE Description 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 status 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 47 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 Controls the AUXA output sig
38. ne You can select the logic level of the TTL input by changing the J3 connector on the RS 232 PCB Table 2 13 shows the TTL signal levels for the J3 jumper settings See Figure 2 2 3 for the location of the J3 jumper on the printed circuit board Table 2 13 Switch Settings for TTL Shutdown Circuit Logic PCB Jumper J3 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 29 Installation and Configuration User Signals User Signals 30 Connector J21 User Signals Auxiliary connector J21 located on the RS 232 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 J21 signal requires that you provide external Vcc and ground Use a standard 8 position telephone jack and data cable to connect to J21 To locate the connector refer to the RS 232 interface subplate drawing in Figure 2 2 on page 21 See Figure 2 5 for pin descriptions The J21 outputs can sink a current of 5mA each Figure 2 6 on page 31 shows the portion of the option board schematic which contains the J21 connector Use the schematic as a reference when making input or output connections J21 1 External TTL shutdown input signal See TTL Shutdown J21 2 Polarity signal open collector asserted by VSET x J21 3 Isolation signal open collector asserted by OU
39. necting a digital voltmeter as in Voltage Calibration Setup is optional 1 2 Disconnect all loads from the power supply Ensure that jumper J2 on the interface PCB is CLOSED to enable remote OVP calibration Jumper J2 is closed at the factory See Figure 2 3 RS 232 Interface PCB p 18 for the location on the PCB of jumper J2 Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply 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 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 sending the command CMODE OFF or CMODE 0 to the power supply Operating Manual for RS 232 for XPD 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 RSPD 01XN PRINTED IN CANADA
40. ng command information These Conventions 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 0N gt Entering 1 or ON will achieve the same result COMPUTER ENTRY Words typed on the computer are shown in Arial text full capitals Release 1 2 33 Operation Command Syntax Command The device dependent language for the RS 232 Interface consists of commands and Format and parameters A command is a one word code which either gives instructions to the Parameters 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 1 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 nu
41. o more than 5 cm 2 from the power supply end of the J21 user cable Open the ferrite block housing Loop the cable through the ferrite block See Figure 2 7 J21 User Cable with Ferrite Block on page 32 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 yo a J21 User Cable Ar Ferrite Block i X 2 5cm MAX To J21 Connector gt I H 4 To User Custom Interface Figure 2 7 J21 User Cable with Ferrite Block Operating Manual for RS 232 for XPD Series Power Supply Section 3 Operation Introduction This section covers RS 232 interface programming including an extensive set of device dependent commands and providing error codes and status and fault register information RS 232 Operation The RS 232 interface card lets you send and receive data between your power supply and computer relying on bit serial communication You can use the computer controller to issue commands to the power supply for programming queries calibration or status The power supply responds to the complete command set of device dependent software commands shown in Command Reference on page 40 Command Syntax Manual The manual uses these conventions when displayi
42. oceeding check to ensure that the green REMOTE LED on the front panel is on Configure the controller s operating parameters to match the power supply settings Test the link by communicating with the power supply See Baud Rate Selection on page 20 Flow Control Selection on page 20 See Remote Local Operation on page 23 See RS 232 Connection on page 26 See Connector J21 User Signals on page 30 See User Options and Settings on page 28 and User Signals on page 30 for information about Local Remote OVP TTL Shutdown and auxiliary connector J21 user signals See Power Supply Settings on page 27 Example VSET2 ISET1 This command string sets power supply voltage to 2V and its current limit to 1A See Section 3 19 Installation and Configuration Communications Communications Baud Rate Selection Flow Control 20 Selection Serial transmission sends and receives data in bit streams at fixed bit rates Both the computer and the interface must have the same bit rate setting for proper communication Use switches B1 B2 and B3 on the rear panel S1 switch to select the power supply s rate of transmission 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 17 for the location of the S1 switch on the RS 232 interface subplat
43. osition of the J10 jumper on the interface PCB Table 2 8 Jumper Settings for Transmit Receive Pin Selection shows the transmit receive pin selection on the RS 232 connector in relation to the settings of the J10 jumper See Figure 2 3 RS 232 Interface PCB on page 18 to locate jumper J10 Table 2 8 Jumper Settings for Transmit Receive Pin Selection Jumper J10 Connections RS 232 Connector Pin Transmit TXD 4 6 default 3 4 2 2 Receive RXD 3 1 default 2 3 5 3 Operating Manual for RS 232 for XPD Series Power Supply Installation and Configuration Remote Local Operation Remote Local Operation Remote Local Mode Startup Release 1 2 Start the power supply either in local mode or in remote mode by setting the power ON remote PON REM switch which is located on the unit s rear panel See Table 2 9 for the switch settings Table 2 9 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 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 Table 2 10 Refer to Section 3 for mor
44. 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 1 2 iii Disclaimer Product Exclusions THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED BY XANTREX IN CONNECTION WITH YOUR XANTREX PRODUCT AND IS WHERE PERMITTE
45. r 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 command line is discarded An error query clears the ERR bit in the accumulated status register See Error Codes on page 49 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 J21 4 user signal line You can tie the J21 4 fault line signal to the power supply s own External Shutdown user line J21 1 so that the shutdown signal goes low active in the case of a user defined fault The FA
46. r which corresponds to an event described in the following table The ERR query will also clear the ERR bit in the register Table 3 9 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 limit 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 49 Operation Troubleshooting Troubleshooting 50 Diagnostic LEDs WARNING Exercise caution when using and servicin
47. rol application requires a computer based communications software package such as PROCOMM XTALK Windows Terminal Program equivalent communications software or low level or high level language programs The RS 232 interface is an ideal tool for reliable remote power supply control of both research and development applications Figure 1 1 Sample Configuration using RS232 Interface Release 1 2 11 Features and Specifications Features and Functions Features and Functions Features gt Programmable gt 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 Standardized commands for complete communication with any of the supplies in the system User programmable isolated fault polarity isolation and auxiliary user defined output signals LED status signals error address remote local operation and over voltage protection Foldback in CV or CC mode with reset Software calibration 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 Actual voltage and current Voltage and current settings Soft voltage and current limits Over voltage protection setting Present and accumulated power s
48. supply to be sent into remote mode VSET 10 ISET 2 Put the unit into remote operation mode Use any command to do this 25 Installation and Configuration RS 232 Connection RS 232 Connection WARNING Do not operate the power supply and the computer at significantly different frame potentials The interface connection system may not be capable of handling the resulting excessive ground currents Use an approved RS 232 connector and cable when connecting the RS 232 Interface to your computer The RS 232 connector uses the 9 pin mating connector J4 on the rear panel Figure 2 4 shows the connector pinouts for the RS 232 connector Refer to Figure 2 2 on page 17 for the position ofthe RS 232 connector on the rear panel subplate 1NC 2 TXD 3RXD 4 DTR 5 GND 6 DSR 7RTS 8 CTS 9NC Figure 2 4 RS 232 Connector J4 Pinouts default configuration 26 Operating Manual for RS 232 for XPD Series Power Supply Power Supply Settings Release 1 2 Installation and Configuration Power Supply Settings For serial communication the computer and the RS 232 interface must share the same communication settings Make sure that the settings of the computer and of the power supply agree with those shown in Table 2 11 Table 2 11 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 S
49. to ensure that the new settings are put into effect Table 2 5 Jumper Pin Settings for RTS CTS Flow Control Default Jumper Connections RS 232 Connector Pin RTS Input to RS 232 J17 to 2 4 and 3 5 7 CTS Output to RS 232 J16 to 1 3 and 4 6 8 21 Installation and Configuration Communications 22 Connections Transmit Receive Pin Selection Table 2 6 Jumper Pin Settings for DTR DSR Flow Control Default Jumper Connections RS 232 Connector Pin DTR Input to RS 232 J17 to 2 4 and 1 3 4 DSR Output to RS 232 J16 to 3 5 and 4 6 6 Use a 9 pin DB9 to 9 pin parallel cable to connect the interface card to the serial port on the host computer If you need to use a 25 pin connector DB25 on the host interface ensure the correct connections are made by referring Table 2 7 If the proper cables are not available and you need to change the transmit receive pin configuration see Transmit Receive Pin Selection Table 2 7 Transmit Receive Pin Connections Power Supply DCE Host Computer DTE 9 pin connector Pin 2 transmits to Pin 2 Receive Pin 3 receives from Pin 3 Transmit Pin 5 Ground connects to Pin 5 Ground 25 pin connector Pin 2 transmits to Pin 3 Receive Pin 3 receives from Pin 2 Transmit Pin 5 Ground connects to Pin 7 Ground The RS 232 interface can use either pin 2 or pin 3 of the RS 232 connector to transmit or receive data You can set the pin orientation you want by changing the p
50. top Bit 1 Data Bits 8 Protocols XON XOFF CTS RTS DSR DTR NONE 27 Installation and Configuration User Options and Settings User Options and Settings 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 customize remote operation settings for OVP over voltage protection control and TTL shutdown by changing jumper positions on the RS 232 PCB Refer to the operating manual for information on how to use over voltage protection and TTL shutdown Over voltage protection OVP on the RS 232 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 REM software command 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 10 on page 24 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 J2 and the Remote OVP Control jumper J20 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
51. tus register query Table 3 8 shows the mnemonics and bit weights which correspond to each register condition You can select conditions you want to monitor in the fault and status register by using the MASK and UNMASK commands 47 Operation Accumulated Status Status and Fault Registers Table 3 8 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 J21 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 All 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 A fault is cleared with a fault query FAULT 48 Operating Manual for RS 232 for XPD Series Power Supply Error Codes Release 1 2 Operation Error Codes If the ERR flag in the accumulated status or fault registers has been activated an ERR query will return an error numbe
52. up procedures Describes inspection cleaning shipping and storage procedures 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 1 2 The current release of this manual is listed below Updates may be issued as an addendum Release 1 2 2002 06 vii About This Manual viii Operating Manual for RS 232 for XPD Series Power Supply Contents Section 1 Features and Specifications Section 2 Installation and Configuration Section 3 Operation Release 1 2 About This Manual senro bre a ans Waele Noa ee Seed vii Description it A AS bead gs eee chads do eta deen ae 11 Features and Functions aana 00 eee eens 12 ESAS ca aa cn cea a rescind o te at anaes Megas oe ee das Mei Pad 12 Programmable Functions 00 00 sees rss rr rr tees 12 Readback Functions 0 00 ccc ce eee ee eens 12 Specifications iii hake Sevan Le ate are a pe ee eG Beeler 13 troduction sc tata dl Lees da Sows Mads a head a celal es a 15 Initial Inspection 3 eee cota td Bh ob Be eee 15 Basic Setup Procedure ceiba e o ana De eee 19 COMMUNICATIONS 523 22 A A ik ee Oa ae ne es EM 20 Baud Rate Selection timida br ar BAR 20 Flow Control Selection 0 0
53. upply 52 Operating Manual for RS 232 for XPD Series Power Supply Voltage Readback Calibration Procedure Release 1 2 Calibration Voltage Mode Calibration Set the power supply for calibration as in Figure 4 1 Activate calibration mode by sending command CMODE ON or CMODE 1 to the power supply 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 voltage 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 53 Calibration Current Mode Calibration Current Mode Calibration Current Calibration Setup Current Program Calibration Procedure 54 1 Disconnect the load from the power supply to be ca
54. upply status Programming error codes Fault codes Power supply model and software version identification Operating Manual for RS 232 for XPD Series Power Supply Specifications The specifications in this section are warranted at 25 C 4 specified All specifications are subject to change without notice Features and Specifications Specifications ESC unless otherwise Table 1 1 Specifications for XPD 500 W Series Supply with RS 232 Interface Installed Models 7 5 67 Program Resolution Voltage 1 2mV Current 5 2mA OVP 1 2mV Program Accuracy Voltage 10mV 0 12 Current 250mA 20 1 OVP 80mV Readback Resolution Voltage 1 2mV Current 5 2mA Readback Accuracy Voltage 30mV 0 12 Current 250mA 20 1 1 Apply accuracy specifications according to the following voltage program accuracy example 18 30 4 6mV 3 6mA 4 6mV 75mV 0 12 140mA 10 1 200mV 4 6mV 3 6mA 75mV 0 12 140mA 20 1 Set a model XPD 18 30 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 1 2 33 16 5 1mV 2 9mA 5 1mV 75mV 0 12 115mA 0 15 330mV 5 1mV 2 4mA 75mV 0 2 115mA 0 15 60 9 9 3mV 1 3mA 9 3mV 150mV 10 3 80mA 0 15 600mV 9 3mV 1 3mA 150mV 0 3 80mA 0 15 120 4 5 18 6mV 0 7mA 18 6mV 180mV 0 25 80mA 0 1 1 2V 18 6mV 0 7mA 180mV 0 25 80mA 10 1 13 Features and
55. ut 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 J21 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 supply s present output voltage setting Does not apply to voltage settings which are being held See HOLD command Response VSET lt voltage gt Operating Manual for RS 232 for XPD Series Power Supply Operation Accumulated Status Status and Fault Registers Accumulated Status Status and Fault Registers Release 1 2 The RS 232 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 6 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 771 Controller response 771 512 256 2 1 PON REM CC CV The accumulated status register shows that PON REM CC and CV have all been active since the last accumulated sta
56. 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 RS 232 for XPD Series Power Supply About This Manual Main Sections This technical manual is for the RS 232 Interface a microprocessor controlled option card for all models of XPD Series DC output power supplies This manual provides you with specifications user options and configuration instructions for the interface along with a command set which allows you to control your power supply from a computer console 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 interface and lists its features and specifications Section 2 Installation and Configuration Goes through basic set
57. y 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 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 37 Operation Command Summary Table 3 4 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 setting 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 REM Asks for the state of remote enable ROM Asks for the
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