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MPE XR III series Operator's Manual

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OPERATING AND SERVICE MANUAL
XR SERIES III
DC POWER SUPPLIES

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  • Page 1 OPERATING AND SERVICE MANUAL XR SERIES III DC POWER SUPPLIES...
  • Page 3 MAGNA-POWER ELECTRONICS, INC. 39 ROYAL ROAD, FLEMINGTON, NJ 08822 February 20, 2012...
  • Page 5 SAFETY NOTICE Before applying power to the system, verify that the unit is configured properly for the user’s particular application. CE recognition of XR Series power supplies is based on rack mounted applications only. Use of these power supplies outside of a rack mount equipment enclosure will expose the user to high voltage and/or high current sources.

  • Page 6: Limited Warranty

    LIMITED WARRANTY The following is made in lieu of all warranties expressed or implied. Magna-Power Electronics, Inc. warranties its products to be free of manufacturing defects for a period of two (2) years from date of original shipment from its factory. Magna-Power Electronics, Inc.
  • Page 7 CLAIM FOR DAMAGE IN SHIPMENT This instrument received comprehensive mechanical and electrical inspections before shipment. Immediately upon receipt from the carrier, and before operation, this instrument should be inspected visually for damage caused in shipment. If such inspection reveals internal or external damage in any way, a claim should be filed with the carrier.

  • Page 8: Table Of Contents

    TABLE OF CONTENTS Section Title Page 1.0 GENERAL INFORMATION Description Features IEC Symbols Used in Manual Power Requirements Specifications 2.0 INSTALLATION AND POWER ON CHECK Cooling AC Input Connections DC Output Connections General Operation Controls and Indicators Preparation for Use 2.6.1 Unpacking 2.6.2 Electrical Check 2.6.2.1 XR Series Models...
  • Page 9 Series Operation 3.9.1 Series Operation - Direct 3.9.2 Series Operation - Master/Slave 3.10 Pulse Loading 3.11 Nomenclature 4.0 PROGRAMMING WITH SCPI COMMANDS Command Features Electrical Testing Using RS232 Communications SCPI Subsystem Commands 4.3.1 Source Subsystem 4.3.1.1 VOLT and VOLT:TRIG 4.3.1.2 VOLT:PROT 4.3.1.3 CURR and CURR:TRIG 4.3.1.4 CURR:PROT 4.3.1.5 PER (not available for XR Series power supplies)
  • Page 10 4.3.10.1 REM:SENS 4.3.10.2 CONT:INT 4.3.10.3 CONT:EXT 4.3.10.4 INTE 4.3.10.5 CONF:SETPT 4.3.11 GPIB Communications Subsystem 4.3.11.1 GPIB:VERS? (Optional GPIB only) 4.3.11.2 GPIB:ADDR (Optional GPIB only) 4.3.12 Ethernet Communications Subsystem 4.3.12.1 NET:VERS? (Optional Ethernet only) 4.3.12.2 NET:MAC? (Optional Ethernet only) 4.3.12.3 NET:SER? (Optional Ethernet only) 4.3.12.4 NET:ADDR (Optional Ethernet only) 4.3.12.5 NET:GATE (Optional Ethernet only) 4.3.12.6 NET:SUBN (Optional Ethernet only)
  • Page 11 Modulation Panel 6.0 PRINCIPLE OF OPERATION 7.0 MAINTENANCE AND TROUBLE SHOOTING General Trouble Shooting Guide Calibration 7.3.1 Control Board 7.3.1.1 Reference Amplifier Calibration 7.3.1.2 Voltage Feedback Amplifier Calibration 7.3.1.3 Current Feedback Amplifier Calibration 7.3.2 Driver Board 7.3.2.1 Over Current Protection 7.3.2.2 Under Voltage Protection 8.0 APPLICATIONS General...
  • Page 12 HyperTerminal Setup 485DSS Address Command 485DSS Communications using HyperTerminal viii...

  • Page 13: General Information

    1.0 GENERAL INFORMATION Description This manual contains operation and maintenance instructions for Magna-Power Electronics' XR Series, current fed power supplies. These power supplies are constant voltage/constant current sources suitable for a wide range of applications. Features Magna-Power Electronics’ XR Series combines the best of dc power processing with multiprocessor embedded control.
  • Page 14 XR Series power supplies have three levels of over voltage/current protection: shutdown of controlling insulated gate bipolar transistors (IGBT’s), disconnect of main power, and input fuses. After an over voltage/current trip condition, the supply must be reset. XR Series power supplies have push button start/stop controls. These controls are tied to a mechanical contactor which operates with the electronic switches to break the ac mains when stop is commanded.
  • Page 15 Table 1.1 COMPARISON CHART OF FRONT AND REAR PANEL CONTROLS AND INDICATORS MODELS Features FRONT PANEL CONTROLS Power on/off Start/Stop Rotary voltage/current entry Menu/Item Display settings Enter/Clear INDICATORS Voltage/current set point OVT/OCT set point Voltage/current output Internal/external control Alarms Rotary/external/remote programming Remote sense enabled REAR PANEL CONTROLS Voltage/current set point...

  • Page 16: Iec Symbols Used In Manual

    XR Series models have extensive diagnostic functions -- all of which when activated take command to shut down the system. Diagnostic functions include phase loss, excessive thermal conditions, over voltage trip, over current trip, and program line. Program line monitors externally applied analog set point signals to insure they are within the specified range.
  • Page 17 Input voltage: 208 Vac (operating range 187 - 229 Vac), 50 - 400 Hz (operating range 45 - 440 Hz), 3φ; 240 Vac (operating range 216 - 264 Vac), 50 - 400 Hz (operating range 45 - 440 Hz), 3φ; 380 Vac (operating range 342 - 418 Vac), 50 - 400 Hz (operating range 45 - 440 Hz), 3φ;...
  • Page 18 0.04 %/EC of maximum output voltage, 0.06 %/EC of maximum output current. Isolation: User inputs and outputs: referenced to earth ground, Maximum input voltage to ground: ±2500 Vac, Maximum output voltage to ground: ±1000 Vdc. Power Factor: greater than 92% at maximum power, 3φ inputs, greater than 70% at maximum power for 1φ...
  • Page 19 Output current: ±0.2%, +10V Ref: ±.50%. Digital programming accuracy of full scale: Voltage set point: ±0.075%, Current set point: ±0.075%, Over voltage trip set point: ±0.075%, Over current trip set point: ±0.075%. Digital readback accuracy of full scale: Output voltage: ±0.2%, Output current: ±0.2%.
  • Page 20 Measurement, Control, and Laboratory Use 2004/108/EC EMC Directive EN61000-6-3:2001 and EN61000-6-3:2001 General Emissions Standard EN55022 Class A Product Specifications Emissions EN61000-6-1:2001 Generic Immunity Standard • EN61000-4-2 Electrostatic Discharge • EN61000-4-3 Radiated Susceptibility • EN61000-4-4 Electrical Fast Transient/Burst • EN61000-4-6 Conducted Susceptibility •...
  • Page 21 Table 1.2 MODEL ORDERING SYSTEM – Example XR500-16/208+WC+LXI - 16 / 208 + WC+LXI SERIES FRONT OUTPUT OUTPUT INPUT NAME PANEL VOLTAGE CURRENT VOLTAGE OPTIONS A: Analog See Tables See Tables 208 SP See Table 1.3 D: Digital 1.11 and 1.11 and 240 SP C: Computer...
  • Page 22 Table 1.5 TERMINAL DEFINITIONS FOR CONNECTOR JS1, REMOTE INTERFACE TERM PARAMETER TERM PARAMETER TERM PARAMETER REF GND EXT CTL PGM LINE REF GND RESERVE STANDBY VREF EXT RESERVE PHASE LOSS TVREF EXT START VOLT CTL CLEAR RESERVE +2.5V REF CAL STOP REF GND INT CTL...
  • Page 23 Table 1.8 TERMINAL DEFINITIONS FOR CONNECTOR JS4, IEEE-488 TERM PARAMETER TERM PARAMETER DIO1/Data line DIO5/Data line DIO2/Data line DIO6/Data line DIO3/Data line DIO7/Data line DIO4/Data line DIO8/Data line EOI/End or Identify REN/Remote Enable DAV/Data Valid DAV/Gnd NRFD/Not Ready For Data NRFD/Gnd NDAC/Not Data Accepted NDAC/Gnd...
  • Page 24 Table 1.10 OPTIONAL HIGH-SLEW OUTPUT PARAMETERS OUTPUT OUTPUT VOLTAGE POWER OUTPUT RANGE RANGE CAPACITANCE RIPPLE μF Vrms 13200 10-16 4080 2340 2 - 8 1170 40-80 100-400 1000...
  • Page 25 Table 1.11 2 KW MODELS AND RATINGS INPUT CURRENT 1φ UNITS 3φ UNITS (Aac) (Aac) VOLTS AMPS RIPPLE 208/ 208/ 380/ 440/ MODEL mVrms 240 V 240 V 415 V 480 V XR5-375 XR10-200 XR16-125 XR20-100 XR32-62 XR40-50 XR50-40 XR80-25 XR100-20 XR125-16 XR160-12...
  • Page 26 Table 1.12 4 KW MODELS AND RATINGS INPUT CURRENT (Aac) VOLTS AMPS RIPPLE 208/240 V 380/415 V 440/480 V MODEL mVrms XR10-375 XR16-250 XR20-200 XR32-124 XR40-100 XR50-80 XR80-50 XR100-40 XR125-32 XR160-24 XR200-20 XR250-16 XR375-10.6 10.6 XR400-10.0 10.0 XR500-8.0 XR600-6.6 XR800-5.0 XR1000-4.0 1000 Notes:...
  • Page 27 Table 1.13 6 KW MODELS AND RATINGS INPUT CURRENT (Aac) VOLTS AMPS RIPPLE 208/240 V 380/415 V 440/480 V MODEL mVrms XR16-375 XR20-300 XR32-186 XR40-150 XR50-120 XR80-75 XR100-60 XR125-48 XR160-36 XR200-30 XR250-24 XR375-15.9 15.9 XR400-15.0 15.0 XR500-12 12.0 XR600-9.9 XR800-7.5 XR1000-6.0 1000 Notes:...
  • Page 28 Table 1.14 8 KW MODELS AND RATINGS INPUT CURRENT (Aac) VOLTS AMPS RIPPLE 208/240 V 380/415 V 440/480 V MODEL mVrms XR20-375 XR32-250 XR40-200 XR50-160 XR80-100 XR100-80 XR125-64 XR160-50 XR200-40 XR250-32 XR375-21.3 21.3 XR400-20.0 20.0 XR500-16.0 16.0 XR600-13.3 13.3 XR800-10.0 10.0 XR1000-8.0 1000...

  • Page 29: Rear Panel

    FRONT PANEL MODE DC VOLTAGE DC CURRENT R EM SEN OPTIONAL IEEE-488 IN T C T L PO W ER INTERFACE ST AN D BY M EN U V/I DIS C L EAR EXT C TL C TL C TL R O T ARY EXT PG M IT EM...

  • Page 30: Installation And Power On Check

    2.0 INSTALLATION AND POWER ON CHECK XR Series power supplies are intended for rack mount installations only and are designed to fit in standard 19" equipment racks. Additional support, other than that provided by the front panel, is required. Angle slides or cross beam supports securely fastened to the rack are recommended for supporting the weight of the power supply.

  • Page 31: Dc Output Connections

    This power supply is designed to be permanently connected to the power source requiring a readily accessible disconnect device incorporated into the fixed wiring. DC Output Connections Caution: disconnect AC power from the mains before attempting any installation procedure. Table 2.1 SUGGESTED AMPACITIES OF 4-CONDUCTOR TYPE S OR SO CABLE Maximum...
  • Page 32 Table 2.2 SUGGESTED AMPACITIES OF CONDUCTORS AS RECOMMENDED BY THE NATIONAL ELECTRICAL CODE Temperature Rating of Copper Conductor 60 °C 75°C 85°C 90°C Types Types Types Types RUW, T, TW FEPW, RH, V, MI TA, TBS, SA, AVB, Wire Size RHW, RUH, SIS, FEP, FEPB, (AWG)

  • Page 33: Controls And Indicators

    Controls and Indicators The controls and indicators XR and XRC Series power supplies are illustrated in figures 2.1 and 2.2, respectively. Preparation for Use 2.6.1 Unpacking Carefully unpack the power supply saving all packing materials and included enclosures. Inspect power supply for possible shipping damage. Check that there are no broken knobs or connectors, the external surface is not scratched or dented, the meter faces are not damaged, and all controls move freely.

  • Page 34: Xrc Series Models

    turn the power switch on. Press the start switch and advance the voltage control one turn clockwise. Increase the current set point to maximum and then to minimum. The power and current control indicators should light. Dc current should increase smoothly from minimum to maximum to minimum as indicated on the meter.
  • Page 35 FUNCTION KEYS MENU: selects function ITEM: selects item within function CONFIGURATION V/I DIS: displays voltage and current settings REM SEN: indicates remote sense TRIP DIS: displays OVT and OCT settings INT CTL: front panel controls enabled CLEAR: clears setting or resets fault condition EXT CTL: external controls enabled ENTER: enter ROTARY: potentiometer voltage/current control...
  • Page 36 AGNA-POWER ELECTRONICS Energizes control circuits without turning on main power Figure 2.2 XRC Series controls and indicators...

  • Page 37: Operation

    3.0 OPERATION Front Panel Commands As shipped, the XR Series power supply is configured for local sensing, rotary control, internal programming, and voltage input as specified on the rear label. XRC Series power supplies cannot be controlled through the front panel other than on/off. The front panel voltage and current controls set the boundary limits for output voltage and current, respectively.

  • Page 38: Set Point Commands

    MENU STAR T POWER LED ON STANDBY LED OFF OUTPUT POWER ENABLED STOP STANDBY LED ON POWER LED OFF OUTPUT POWER DISABLE D V/I SET DISPLAYS VOLT SET ON VOLT DISPLAY DISPLAYS CUR SET ON CUR DISPLAY RETURNS TO NORMAL WHEN RELEASE D TRIP SET DISPLAYS OVT SET ON VOLT DISPLAY DISPLAYS OCT SET ON CUR DISPLAY...
  • Page 39 MENU OVT LED FLASHES OVT DISPLAY INCREMENTS OVT DISPLAYED IN VOLT DISPLAY STAR T OVT DISPLAY DECREM ENTS OCT LED FLASHE S OCT DISPLAYED IN CUR DISPLAY STOP ENTER OVT DISPLAY ENTERED AS OVT SET POINT conF FLASHES IN VOLT DISPLAY PS RETURNS TONORMAL OPERA TION V/I SET (STANDBY MODE ONLY)

  • Page 40: Configuration Commands

    up/down keys cause number changes to increase or decreases at a faster rate. Upon nearing the desired set point number, release and press again to slow down the rate of change. Pressing and holding the clear key for 5 seconds while programming set point commands sets the OVT and OCT to default values.
  • Page 41 all reference inputs are set over the RS232, optional IEEE-488, or optional Ethernet. MENU OVT LED FLASHES OVT DISPLAYED IN VOLT DISPLAY START OCT LED FLASHES CLEAR PS RETURNS TO NORMAL OPERA TION OCT DISPLAYED IN CUR DISPLAY STOP conF FLASHES IN VOLT DISPLAY ENTER REM SEN LED FLASHES ENTER...
  • Page 42 MENU OVT LED FLASHES MENU OVT LED FLASHES OVT DISPLAYED IN VOLT DISPLAY OVT DISPLAYED IN VOLT DISPLAY START START OCT LED FLASHES OCT LED FLASHES CLEAR PS RETURNS TO NORMAL OPERA TION CLEAR PS RETURNS TO NORMAL OPERA TION OCT DISPLAYED IN CUR DISPLAY OCT DISPLAYED IN CUR DISPLAY STOP...

  • Page 43: Calibration Commands

    Figure 3.10 Set external interlock 3.1.4 Calibration Commands Figure 3.11 describes the calibration commands. Calibration commands allow calibration of five digital potentiometers, display of the firmware and hardware revisions, and reset the digital potentiometers to the factory calibration settings. All of these commands can be made when the power supply is in either the standby or power mode state.
  • Page 44 MENU OVT LED FLASHES OVT DISPLAYED IN VOLT DISPLAY START OCT LED FLASHES OCT DISPLAYED IN CUR DISPLAY STOP conF FLASHES IN VOLT DISPLAY CLEAR PS RETURNS TO NORMAL OPERA TION V/I SET (STANDBY MODE ONLY) CAL FLASHES IN VOLT DISPLAY ENTER 10 DISPLAY VO IN VOLT DISPLAY V/I SET...

  • Page 45: Modes Of Operation

    Again pressing item will advance to control potentiometer 4. The left digit of the voltage display will alternately flash P and 4, the output current will be displayed in the current display, and potentiometer, 0 to 255, will be displayed in the right three digits of the voltage display. To advance adjustment to potentiometer 5, press the item key again.

  • Page 46: Constant Current

    3.2.3 Constant Current To select constant current output, proceed as follows: With the supply off, set both rotary controls to full counterclockwise. Press the V/I dis key and advance the voltage and current controls for the desired output current and the desired crossover voltage.

  • Page 47: External Programming

    LOAD VO1REM+ VO1REM- MULTIPLEXER LOAD VO1REM+ VO1REM- MULTIPLEXER Figure 3.12 (a) Local and (b) remote sensing External Programming XR Series supplies allow voltage, current, voltage trip, and current trip to be programmed from a remote location. Programming can be accomplished either by resistive, voltage, or current programming circuits.
  • Page 48 P/O JS1 P/O JS1 P/O JS1 VREF EXT VREF EXT VREF EXT VREF VREF VREF 10.00V 10.00V 10.00V REF GND REF GND REF GND 0-2.0mA 0-10.0V REF GND REF GND REF GND Figure 3.13 External (a) resistive, (b) voltage, and (c) current programming...

  • Page 49: Resistive Programming

    3.4.1 Resistive Programming Resistive programming requires connection of an external potentiometer or resistors between terminals 21, 3, and 1 of JS1. Terminal 21 is a 10.0 V precision reference, terminal 1 is the reference ground, and terminal 3 is the voltage set point input. Like front panel rotary control, the precision reference produces a voltage across the potentiometer or resistors which is then used to produce the voltage set point.

  • Page 50: Current Programming

    and the power supply will turn off. 3.4.3 Current Programming Current programming, like voltage programming, does not require the voltage reference at terminal 21 of JS1. To produce the voltage reference, a current source is applied to a shunt resistor. Using a 2 mA current source, place a 10.0 K precision metal film resistor between terminals 1 and 3 of JS1.

  • Page 51: Diagnostic Functions

    TO SLAVE S P/O JS1 P/O JS1 CLEAR IO=10V FS INTERLOCK SET VO=10V FS STOP REF GND 1,2,20 START Figure 3.14 Monitoring output (a) voltage and (b) current Interlock set requires a either a physical short between terminals 26 and 37 of connector JS1 or application of a 5.0 V source with the positive connection at terminal 37 of JS1 and the negative connection at terminal 7 of JS1.
  • Page 52 Figure 3.15 Digital input control lines P/O JS1 STANDBY/ALM EXT CTL INT CTL POWER STANDBY CUR CTL VOLT CTL MONITORING LINES Figure 3.16 Digital output control lines...

  • Page 53: Parallel Operation

    Standby indicates that the control circuits are powered, but the supply is disabled through the ac contactor. This is the power supply's normal off condition. To start the supply, press the start switch. To place the supply in standby, press the stop switch. Phase loss indicates a problem with the power mains voltage.

  • Page 54: Parallel Operation - Direct

    separately. 3.8.1 Parallel Operation - Direct The simplest parallel connection involves attaching the positive terminals of all supplies to be paralleled to the positive point of the load and attaching the negative terminals to the negative point of the load. The output current controls of each power supply can be separately set. The output voltage control of one power supply (master) should be set to the desired output voltage;...

  • Page 55: Series Operation

    CURRENT VOLTAGE MODE CONTROL MODE CONTROL LOAD P/O JS1 P/O JS1 TVREF EXT TVREF EXT TIREF EXT TIREF EXT VREF EXT IREF EXT IREF EXT VREF EXT REF GND REF GND START START STOP STOP SLAVE SLAVE LOAD P/O JS1 P/O JS1 STANDBY/ALM STANDBY/ALM...

  • Page 56: Series Operation - Direct

    Caution: No plus or minus voltage should exceed 1000 Vdc with respect to ground. 3.9.1 Series Operation - Direct The simplest series connection involves attaching the positive terminal of the first supply to the negative terminal of the second supply. The load is connected between the negative terminal of the first supply and the positive terminal of the second supply.

  • Page 57: Pulse Loading

    unit and the master unit. 3.10 Pulse Loading The power supply will automatically crossover from constant voltage to constant current operation, or the reverse, in response to an increase (over the preset limit) in the output current or voltage, respectively. With the preset limit set to the average output current or voltage, high peak currents or voltages, as occur in pulse loading, may exceed the preset limit conditions and cause crossover to occur.
  • Page 58 +2.5V REF CAL: Reference used for the calibration procedure. VO1REM+: Remote positive voltage sense. VO1REM-: Remote negative voltage sense. VO2: Output monitoring voltage. IO2: Output monitor current. VREF: Voltage set point reference. IREF: Current set point reference. TVREF: Over voltage trip reference. TIREF: Over current trip reference.
  • Page 59 PHL: Phase loss shutdown. THL: Thermal overload shutdown. VOLT CTL: Voltage control. CUR CTL: Current control. LOC: Interlock open. STANDBY/ALM: Standby or alarm. ALM: Alarm condition. FRONT PANEL: PWR: Control power. MENU: menu. ENTER: enter. CLEAR: clears setting or resets fault condition. ITEM: specific item within menu selection.

  • Page 60: Programming With Scpi Commands

    4.0 PROGRAMMING WITH SCPI COMMANDS Command Features XR Series power supplies provide RS232 communications as a standard feature and IEEE-488 or Ethernet communications as an optional feature. A second UART port, a factory installed option, is enabled after power on by recognizing which port is receiving communications. Once a particular port has been activated, the other UART port cannot be recognized unless there has been a period of inactivity for 5 minutes.

  • Page 61: Scpi Subsystem Commands

    Verify the availability of the RS232 port selected. Turn on the power switch of the XR Series power supply and turn on the IBM PC or compatible computer. Start the HyperTerminal test software and set the COM port to the one connected to the XR Series power supply.

  • Page 62: Volt And Volt:trig

    Figure 4.1 RS232 Communications using Microsoft Windows (tm) HyperTerminal 4.3.1.1 VOLT and VOLT:TRIG These commands set the immediate voltage level or the pending triggered voltage level of the power supply. The immediate level is the voltage programmed for the power supply output. The pending triggered level is a stored voltage value that is transferred to the power supply when a trigger occurs.

  • Page 63: Volt:prot 21.5

    Examples: VOLT 200 VOLTAGE:LEVEL 200 VOLTAGE:LEVEL:IMMEDIATE:AMPLITUDE 2.5 VOLT:TRIG MAX VOLTAGE:LEVEL:TRIGGERED 20 Query Syntax: [SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude]? [SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude]? MAX [SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude]? MIN [SOURce]:VOLTage[:LEVel]:TRIGgered[:AMPLitude]? [SOURce]:VOLTage[:LEVel]:TRIGgered[:AMPLitude]? MAX [SOURce]:VOLTage[:LEVel]:TRIGgered[:AMPLitude]? MIN Returned Parameter: <NR2> Related Commands (for VOLT): *SAV, *RCL, *RST Related Commands (for VOLT:TRIG): ABOR, VOLT, *RST 4.3.1.2 VOLT:PROT This command sets the over voltage trip (OVT) level of the power supply.

  • Page 64: Curr:prot

    pending triggered level is a stored current value that is transferred to the power supply output when a trigger occurs. A pending triggered level is unaffected by subsequent CURR commands and remains in effect until the trigger subsystem receives a trigger or is aborted with an ABORt command.

  • Page 65: Per (Not Available For Xr Series Power Supplies)

    Examples: CURR:PROT MAX CURRENT:PROTECTION:LEVEL 145E-1 Query Syntax: [SOURce]:CURRent:PROTection[:LEVel]? [SOURce]:CURRent:PROTection [:LEVel]? MIN [SOURce]:CURRent:PROTection [:LEVel]? MAX Returned Parameter: <NR2> Related Commands: OUTP:PROT:CLE, *RST, *SAV, *RCL 4.3.1.5 PER (not available for XR Series power supplies) This command sets the period of time that the power supply will remain in the state during auto sequence operation.

  • Page 66: Meas:curr

    Query Syntax: MEASure:VOLTage[:DC]? <> Examples: MEAS:VOLT? MEASURE:VOLTAGE:DC? Returned Parameters: <NR2> 4.3.2.2 MEAS:CURR? Query Syntax: MEASure:CURRent[:DC]? <> Examples: MEAS:CURR? MEASURE:CURRENT:DC? Returned Parameters: <NR2> 4.3.3 System Subsystem The System subsystem returns information about the state of the power supply. 4.3.3.1 SYST:VERS? This query returns the firmware and hardware version of the power supply. The returned value has the form Firmware Rev.

  • Page 67: Status Subsystem

    Examples: SYST:ERR? SYSTEM:ERROR? Returned Parameters: <error number>,<error string> Related Commands: None 4.3.4 Status Subsystem This subsystem programs the power supply status registers. The power supply has three groups of status registers: Operation, Questionable, and Standard Event. The Operation and Questionable Condition registers monitor the power supply’s operation and alarm status. The Standard Event group is programmed with Standard Commands as described in Section 4.5, IEEE 488 Event Processing.

  • Page 68: Questionable Register

    12-15 4.3.4.2 Questionable Register This query returns the value of the Questionable Register. The Questionable Register is a read- only register that holds the real-time (unlatched) condition of the questionable status of the power supply. The bit configuration of the Questionable Register is shown in the Table 4.2. Table 4.2 BIT CONFIGURATION OF QUESTIONABLE REGISTER WEIGHT ABBREVIATION...

  • Page 69: Outp:arm (Not Available For Xr Series Power Supplies)

    Returned Parameters: 0 | 1 Related Commands: *RST, *RCL, *SAV 4.3.5.2 OUTP:ARM (not available for XR Series power supplies) This command selects between the modes of operation. There are two modes of operation for the power supply: normal mode and auto sequence mode. Normal mode energizes the current parameters of the supply until stopped.

  • Page 70: Outp:stop

    Command Syntax: OUTPut:START <> Examples: OUTP:START OUTPUT:START Query Syntax: none Related Commands: *RST, OUTP:STOP, OUTP:ARM, PER 4.3.5.4 OUTP:STOP This command opens the power supply’s input contactor and terminates operation in either normal mode or auto sequence mode. Command Syntax: OUTPut:STOP <> Examples: OUTP:STOP OUTPUT:STOP...

  • Page 71: Trigger Subsystem

    initiate continuous is enabled (INIT:CONT ON), the trigger subsystem immediately re-initiates itself after ABORt, thereby setting WTG. ABOR is executed at power turn on and upon execution of *RCL or *RST. Command Syntax: ABORt <> Examples: ABOR Query Syntax: None Related Commands: INIT, TRIG, *RCL, *RST 4.3.7 Trigger Subsystem...

  • Page 72: Calibrate Subsystem

    Examples INIT INITIATE:IMMEDIATE INIT:CONT 1 INITIATE:CONTINUOUS OFF Query Syntax (for INIT[:IMM]): None Query Syntax (for INIT:CONT): INIT:CONT? Returned Parameters: 0 | 1 Related Commands: ABOR, *RST, TRIG 4.3.9 Calibrate Subsystem The Calibrate Subsystem calibrates the power supply. 4.3.9.1 CAL:IDN This command updates the power supply’s identification string for the power supply model. The CAL:IDN string can have up to 100 characters.

  • Page 73: Cal:pot

    Examples: CALIBRATE:PASSWORD 1234 CAL:PASS 1234 Query Syntax: None Related Commands: None 4.3.9.3 CAL:POT This command sets the value for the specified potentiometer. The variable specifies the potentiometer to be adjusted, 1 thru 5, and the second variable specifies the potentiometer setting, 0 through 255.

  • Page 74: Cal:scal:inp 10.0

    Examples: CALIBRATE:SCALE:CURRENT 375.0 CAL:SCAL:CURR 375.0 Query Syntax: CALibrate:SCALe:CURRent? <> Returned Parameters: <NR3> Related Commands: None 4.3.9.6 CAL:SCAL:INP This command sets the full scale external programming inputs for voltage, current, over voltage trip, and over current trip. The scaling factor for the programming inputs must match the scaling factor set with hardware on the control board.

  • Page 75: Configure Subsystem

    Examples: CALibrate:STOP CAL:STOP Query Syntax: None Related Commands: None 4.3.10 Configure Subsystem The Configure Subsystem sets and returns the configuration of the power supply. 4.3.10.1 REM:SENS This command sets voltage sensing to remote or local mode. Remote sensing, as described in Section 3.3, improves the degradation of regulation which will occur at the load when the voltage drop in the connecting wires is appreciable.

  • Page 76: Cont:ext

    Returned Parameters: 0 | 1 Related Commands: None 4.3.10.3 CONT:EXT This command enables or disables the external inputs for start, stop, arm, and clear. The query command, CONT:EXT?, returns the status of external control. Command Syntax: [CONFigure]:CONTrol:EXTernal <bool> Parameters: 0 | OFF | 1 | ON Examples: CONF:CONT:EXT ON CONT:EXT 0...

  • Page 77: Gpib Communications Subsystem

    This command sets the operational mode of the power supply: rotary, keypad, external, or remote. Keypad configuration is not available for XR Series power supplies. Command Syntax: [CONFigure]:SETPT <NR1> Parameters: 0 = ROTARY, 1 = KEYPAD, 2 = EXTERNAL, 3 = REMOTE Examples: CONF:SETPT 0 SETPT 0...

  • Page 78: Ethernet Communications Subsystem

    Query Syntax: [SYSTem][:COMMunicate]:GPIB:ADDR? Returned Parameters: <NR1> Related Commands: None 4.3.12 Ethernet Communications Subsystem 4.3.12.1 NET:VERS? (Optional Ethernet only) This query reads the firmware and hardware versions of the Ethernet communications module. Command Syntax: none Query Syntax: [SYSTem][:COMMunicate]:NETwork:VERSion? Parameters: none Examples: SYST:COMM:NET:VERS? NET:VERS? Returned Parameters: <Firmware Rev.

  • Page 79: Net:ser? (Optional Ethernet Only)

    4.3.12.3 NET:SER? (Optional Ethernet only) This command sets the serial number of the Ethernet module. The serial number is an integer ranging from 1 to 16777215 and cannot be altered by the user. Query Syntax: [SYSTem][:COMMunicate]:NETwork:SER? Parameters: None Examples: SYST:COMM:NET:SER? NET:SER? Returned Parameters: <integer>...

  • Page 80: Net:subn (Optional Ethernet Only)

    Examples: SYSTem:COMM:NET:GATE 192.168.10.2 NET:GATE 192.168.10.2 Query Syntax: [SYSTem][:COMMunicate]:NETwork:GATE? Returned Parameters: <string> Related Commands: NET:MAC, NET: ADDR, NET:SUBN, NET:PORT, NET:HOST, NET:DHCP 4.3.12.6 NET:SUBN (Optional Ethernet only) This command sets the subnet IP Mask address of the Ethernet module of the power supply. The factory subnet mask setting is 255.255.255.0.

  • Page 81: Net:host? (Optional Ethernet Only)

    Related Commands: NET:MAC, NET: ADDR, NET:GATE, NET:SUBN, NET:HOST, NET:DHCP 4.3.12.8 NET:HOST? (Optional Ethernet only) This query reads the host name of the Ethernet communications module. Command Syntax: none Query Syntax: [SYSTem][:COMMunicate]:NETwork:HOSTname? Parameters: none Examples: SYST:COMM:NET:HOST? NET:HOST? Returned Parameters: <string> Related Commands: NET:MAC, NET: ADDR, NET:SUBN, NET:PORT, NET:DHCP 4.3.12.9 NET:DHCP (Optional Ethernet only) This command sets the DHCP operating mode of the Ethernet module.

  • Page 82: Mod:type:sel

    locations are available for programming. The query command, MEM?, returns the current memory location. Command Syntax: [RECall]:MEMory <NR1> Examples: REC:MEM 10 MEM 99 Query Syntax: RECall:MEMory? Returned Parameters: <NR1> Related Commands: *RCL, *SAV 4.3.14 Modulation Subsystem The Modulation Subsystem adjusts the output voltage or current according to the voltage measured on the external analog input, pin 25 of JS1, named VMOD.

  • Page 83: Mod:tabl

    (default) 0 disabled disabled 1 Vom=Vo×Mod Vom=Vo+Mod 2 Iom=Io×Mod Iom=Io+Mod Notes: 1) Vom is the adjusted output voltage as a function of the modulation operator 2) Iom is the adjusted output current as a function of the modulation operator 3) Vo is the output voltage as a function of input set point voltage 4) Io is the output current as a function of set point current 5) Mod is a value derived from a lookup table as determined by an analog interface signal,VMOD.

  • Page 84: Mod:save

    which is actively applied to the modulation function. With Loc set to 1, data will be stored to the Cache Table, the table intended to be accessed in the next in the profile. During the power on cycle, modulation tables stored in EPROM are copied into volatile RAM. Additional SCPI commands related to data storage and table transfers are described in Sections 4.3.14.3 and 4.3.14.4.

  • Page 85: Mod:tabl:load

    Table, which is stored in RAM, loses its data on power down cycles. This command allows this data to be recovered at the power on cycle. Command Syntax: MOD:SAVE MODulation:TABLe:SAVE Examples: MOD:SAVE Query Syntax: None Returned Parameters: None Related Commands: MOD:TABL:LOAD 4.3.14.4 MOD:TABL:LOAD This command copies all data stored in the Cache Table to the Active Table.

  • Page 86: Ieee-488 Event Processing

    273.0E-2 <NRf> Extended format that includes <NR1>, <NR2> and <NR3>. -273.0 2.73E2 <NRf+> Expanded decimal format that includes <NRf>, MIN, and -273 2.73E2 IEEE-488 Event Processing All of the SCPI subsystem commands in the previous section can be initiated using RS232, optional IEEE-488, or optional Ethernet communications.

  • Page 87: Read Event Status Register

    Query Syntax: none Returned Parameters: none Related Commands: *RST 4.5.2 Read Event Status Register This query reads the Event Status Register (ESR). After reading the ESR, the register is cleared. The bit configuration of the ESR is the same as the Event Status Enable Register (*ESE). The return parameter is weighted as shown in Table 4.6.
  • Page 88 Figure 4.1 Status Byte Generation Figure 4.2 ESE and ESR Generation...

  • Page 89: Read And Set Event Status Enable Register

    Table 4.6 EVENT STATUS REGISTER BIT POS. WEIGHT ABBREVIATION DESCRIPTION Operation Complete Not Used Query Error Device Dependent Error Execution Error Command Error Not Used Power On Event, 1 after power on 4.5.3 Read and Set Event Status Enable Register This command programs the Event Status Enable Register (ESE).

  • Page 90: Read And Set Service Request Enable Register

    BIT POS. WEIGHT ABBREVIATION DESCRIPTION Not Used Not Used Not Used Not Used Message Available Event Status Bit Master Summary Not Used 4.5.5 Read and Set Service Request Enable Register This command sets the Service Request Enable Register (SRE). This register, defined in Table 4.8, determines which bits from the Status Byte Register (see *STB for its bit configuration) are allowed to set the Master Status Summary (MSS) Bit.

  • Page 91: Save

    fields separated by commas. Query Syntax: *IDN? Returned Parameters: Company Name, Power Supply Model, S/N (string format) Example: Magna-Power Electronics, Inc., XR16-375, S/N: 1162-0361, F/W:1.0 Related Commands: CALibrate:IDN (Refer to Section 4.3.9.1, Calibrate Subsystem, for information on configuring the XR Series power supply.) 4.5.7 Save This command stores the present state of the power supply at the specified location in memory.

  • Page 92: Reset

    The *RCL command forces an ABORt command before resetting any parameters. ABOR cancels any trigger actions presently in progress and sets INIT:CONT to OFF. At power turn-on, recall is commanded at the memory location prior to turn-off state. Command Syntax: *RCL <NR1>...

  • Page 93: Restricted Command Set

    ERROR CODE ERROR TYPE 100 through -199 Command 200 through -299 Execution 300 through -399 Device dependent 400 through -499 Query Table 4.10 ERROR MESSAGES ERROR ERROR STRING DESCRIPTION -100 Command error generic command error -102 Syntax error unrecognized command or data type -108 Parameter not allowed too many parameters...
  • Page 94 Status STAT:OPER:COND? STAT:QUES:COND? Output OUTP? OUTP:ARM (not available with XR Series) OUTP:START OUTP:STOP OUTP:PROT:CLE Abort ABOR Trigger TRIG:IMM Initiate INIT:IMM and INIT:CONT Calibrate CAL:IDN CAL:PASS CAL:POT CAL:SCAL:VOLT CAL:SCAL:CURR CAL:DEF CAL:STOP Configure REM:SENS CONT:INT CONT:EXT INTE SETPT GPIB GPIB:VER? Communications GPIB:ADDR Ethernet NET:VER? Communications...
  • Page 95 IEEE Standard *CLS *ESR? *ESE *STB? *SRE? *IDN? *SAV *RCL *RST Notes: C: command, Q: query.

  • Page 96: Interfacing Using The Remote Interface Software

    5.0 INTERFACING USING THE REMOTE INTERFACE SOFTWARE The Remote Interface Software is shipped with XR Series power supplies. The software provides the user with a quick method to operate a Magna-Power Electronics’ power supply under computer control. The Remote Interface Software has six windows: the Virtual Control Panel, Command Panel, Register Panel, Calibration Panel, Firmware Panel, and Modulation Panel.
  • Page 97 Figure 5.1 Configuration setup Figure 5.2 GPIB communications setup...

  • Page 98: Command Panel

    Figure 5.3 Find devices and (b) change device’s GPIB settings Command Panel The Command Panel is illustrated in figure 5.5. The Command Panel is organized into three groups: commands and queries requiring data input, commands with only command syntax, and commands with only query syntax.
  • Page 99 Figure 5.4 Virtual Control Panel Figure 5.5 Command Panel...

  • Page 100: Calibration Panel

    Figure 5.6 Register Panel As illustrated in the Register panel, each column denotes a register value, and the rows, marked by the leftmost column, are the bit positions. The get button at the column heading will acquire the respective register value for the power supply. The labels in each column indicate the meaning of each bit.

  • Page 101: Firmware Panel

    or the save to file button. Voltage Scale and Current Scale are not available to the user. These are factory specific commands that require an alternate password to access. Firmware Panel The Firmware Panel is illustrated in figure 5.8. The Firmware Panel enables the program stored internal to the power supply to be upgraded.
  • Page 102 Figure 5.7 Calibration Panel Figure 5.8 Firmware Panel...
  • Page 103 Figure 5.9 Modulation Panel...

  • Page 104: Principle Of Operation

    6.0 PRINCIPLE OF OPERATION Power is fed through ac fuses and is distributed to the auxiliary power supply, inrush limiter, and main 3φ contactor. The auxiliary power supply operates off the ac mains supplies power to the other printed circuit boards in the system. The inrush limiter is a step start device which is used to initially charge capacitors on the input dc bus and limit the inrush of current.
  • Page 105 FUSES 3-PHASE 3-PHASE POLYP HASE DC LINK CURRENT FED POWER EMI FILTER CONTACTOR RECTIFIER CHOPPER INDUCTORS INVERT ER TRANSFORMER RECTIFIERS 208/380/480 V DC VOLTAGE 3-PHASE & CURRENT INRUSH AUXILIARY GATE DRIVER DISPLAY LIMITER POWER SUPPLY BOA RD BOA RD PIE FILTER INTERFACE ASS 'Y CONTROL...
  • Page 106 The phase detector senses input line voltage on each phase. Upon detection of a problem, the control board is signaled to shutdown the system. The control board, which is referenced to earth ground, contains optically isolated amplifiers to sense output voltage and current. This circuitry allows the output to be referenced ±1000 Vdc above earth ground.

  • Page 107: Maintenance And Trouble Shooting

    7.0 MAINTENANCE AND TROUBLE SHOOTING General The XR Series power supplies consist of a multistage power processing system. Because of its complexity, it is highly recommended that all repairs be performed by the factory or qualified power supply technician. Before attempting maintenance or repair, the technician should be familiar with the components of the systems and the theory of operation.

  • Page 108: Calibration

    Calibration 7.3.1 Control Board The control board contains digital potentiometers for fine adjustments of the reference and feedback amplifiers. These potentiometers may be adjusted by using the front panel controls described in Section 3.1.4. These potentiometers can also be adjusted by using the Calibration Panel of the Remote Interface Software described in Section 5.5.

  • Page 109: Over Current Protection

    7.3.2.1 Over Current Protection Over current protection should only be calibrated after consultation with the factory. Gross misadjustment can cause chopper and inverter failure. Place a dc voltmeter between test point TP6 (positive) and test point TP7 (negative). With only the control power applied, adjust potentiometer P1 to 6.00 V.

  • Page 110: Applications

    8.0 APPLICATIONS General XR Series power supplies deploy several powerful programming functions that enhance performance for user specific applications. While the possibilities are endless, a few examples are presented in this chapter to demonstrate the internal capabilities of the power supply. All of these examples can be further expanded by operating the unit under computer control.
  • Page 111 P/O JS1 VMOD REF GND 1,2,20 Figure 8.1 Leadless remote sensing Figure 8.2 IV characteristics for a typical photovoltaic array...

  • Page 112: Battery Charger

    Table 8.1 MODULATION TABLE FOR LEADLESS REMOTE SENSING (TYPE 1) VMOD (Vdc) 0.00 10.0 0.20 9999 0.00 Table 8.2 MODULATION TABLE FOR EMULATION OF A PHOTOVOLTAIC ARRAY (TYPE 0) VMOD (Vdc) (Vdc) (Adc) 0.000 1.000 2.085 0.952 10.0 3.645 0.905 17.5 4.690 0.857...
  • Page 113 8.3 illustrates the different charging steps and Table 8.4 provides the recommended charging voltage per cell for different battery technologies. Diode D1 with associated remote sense connections can be avoided with application of the high- slew rate option. As compared to standard XR Series models, the high-slew rate option has less output capacitance and less loading on the battery when the power supply is off.
  • Page 114 Table 8.6 defines the modulation parameters for applying temperature compensation to a standard 12 V lead acid battery using a XR16-250 power supply. The modulation control parameter should be set to voltage control and modulation type should be set to 1. Table 8.3 CHARGING PROGRAMMING AND CHARACTERISTICS STEP 1...
  • Page 115 Table 8.5 BATTERY CHARGING TEMPERATURE COMPENSATION PER CELL DEVIATION IN ELECTROLYTE ELECTROLYTE CHARGE TEMPERATURE TEMPERATURE VOLTAGE (Vdc) (°F) (°C) RANGE -17.8 224 - .264 -12.2 .196 - .231 -6.7 .168 - .198 -1.1 .140 - .165 .112 - .132 10.0 .084 - .099 15.6 .056 - .066...

  • Page 116: High-Slew Rate Option

    High-Slew Rate Option The standard output stage of XR Series power supplies has been designed to provide the lowest possible output ripple voltage within the constraints of available components, size, and cost. Part of the output stage consists of a bank of aluminum electrolytic capacitors which has the desired electrical properties to provide this function.

  • Page 117: Appendix A Ieee-488 Communications

    APPENDIX A IEEE-488 COMMUNICATIONS XR Series power supplies are available with an optional IEEE-488 (GPIB) interface. When specified at time of order, an IEEE-488 interface module is installed to make a second UART port available for communications. With two UART ports available, RS232 and IEEE-488, the one first receiving communications after power on is the port that is activated.
  • Page 118 Run the MAX application program. In the Configuration window, press the + sign to the left of Devices and Interfaces to view the installed devices. If there is more than one IEEE-488 (GPIB) device listed, then select the correct GPIB device. Press Scan for Instruments on the menu bar and wait several seconds.

  • Page 119: Appendix B Ethernet Communications

    APPENDIX B ETHERNET COMMUNICATIONS XR Series power supplies are available with an optional Ethernet interface. When specified at time of order, an Ethernet interface module is installed to make a second UART port available for communications. With two UART ports available, RS232 and Ethernet, the one first receiving communications after power on is the port that is activated.

  • Page 120: Ethernet Communications Using A Web Page Browser

    (Winsock)” in the “Connect using” list box. Insert the recorded IP address in the “Host address” text box and port number in the “Port number” text box. Click the “OK” button. Set the following properties for HyperTerminal’s ASCII setup: Send line ends with line feeds. Echo typed characters locally.

  • Page 121: Discovery

    the module will be set to DHCP/Auto-IP enabled. B.3.2 Discovery The Ethernet module supports the VXI-11 discovery protocol allowing the device to be discovered on the network by software such as National Instruments' Measurement & Automation Explorer, Agilent Connection Expert, or the Remote Interface Software supplied with the power supply.
  • Page 122 displayed as shown in figure B.1. This figure provides the basic information about the configuration and allows the user to enable or disable the LXI Identification. Click Enable Identify or Disable Identify to change the state of the LXI Identification. When LXI Identification is enabled, the LAN LED on the back of the power supply unit will blink.
  • Page 123 Figure B.1 Information Panel Figure B.2 Configure Panel...
  • Page 124 Figure B.3 Reboot in Progress Panel Figure B.4 Web Control Panel...

  • Page 125: Appendix C Usb Communications

    APPENDIX C USB COMMUNICATIONS The optional Edgeport/1 USB Expansion Module transparently transforms a USB port to a RS232 COM port. The Edgeport/1 Windows drivers installs a virtual RS232 COM port in the Device Manager of the operating system. This in turn will allow communications with the XR Series power supply in the same manner as a device connected to the RS232 COM port on a PC.

  • Page 126: Appendix D Rs485 Communications

    Start the HyperTerminal program in Windows by pressing Start, Programs, Accessories, Communications, and HyperTerminal. In the Connection Description dialog box, type MPE Comm and click the OK button. The Connect To dialog box will then appear. Select the desired COM port.
  • Page 127 Stop Bits to 1. Flow control to None. Click the OK button. On the menu bar, select File, Properties to open the Properties dialog box. Click on the Settings tab, and click the ASCII Setup button. On the ASCII Setup dialog box, set the following: Send line ends with line feeds.
  • Page 128 On the menu bar, select Call to reestablish communications at the new baud rate. Press Enter. Type “*IDN?” in the input window and press Enter. The identification string of the instrument should appear.
  • Page 129 485DSS 485DSS FR. GND FR. GND HOST HOST TD(A) TD(A) RD(A) TD(A) TD(B) TD(B) RD(B) TD(B) RD(A) TD(A) RD(A) RD(A) RD(B) RD(B) TD(B) RD(B) 1/2W 1/2W 1/2W 1/2W +12 RTN +12 RTN TERMINATION TERMINATION 485DSS (END UNIT) 485DSS (END UNIT) FR.

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