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MPE DP SERIES II Operating And Service Manual

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OPERATING AND SERVICE MANUAL
DP SERIES II
DC POWER SUPPLIES

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  • Page 1 OPERATING AND SERVICE MANUAL DP SERIES II DC POWER SUPPLIES...
  • Page 3 MAGNA-POWER ELECTRONICS, INC. 39 ROYAL ROAD, FLEMINGTON, NJ 08822 January 6, 2010...
  • 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 DP 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 improper use of the equipment and accessories.
  • Page 7 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 8 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 9: 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 2.1.1 Air Cooling 2.1.2 Water Cooling AC Input Connections DC Output Connections General Operation Controls and Indicators Preparation for Use 2.6.1 Unpacking...
  • Page 10 3.4.1 Resistive Programming 3.4.2 Voltage Programming 3.4.3 Current Programming Voltage and Current Monitoring Digital Input and Output Lines Diagnostic Functions Parallel Operation 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...
  • Page 11 4.3.9.3 CAL:POT 4.3.9.4 CAL:SCAL:VOLT 4.3.9.5 CAL:SCAL:CURR 4.3.9.6 CAL:SCAL:INP 4.3.9.7 CAL:DEF 4.3.9.8 CAL:STOP 4.3.10 Configure Subsystem 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)
  • Page 12 5.0 INTERFACING USING THE REMOTE INTERFACE SOFTWARE Application Setup Virtual Control Panel Command Panel Register Panel Calibration Panel Firmware Panel Modulation Panel (D Version front panels only) 6.0 PRINCIPLE OF OPERATION General Master Module Slave Module 7.0 MAINTENANCE AND TROUBLE SHOOTING General Trouble Shooting Guide Calibration...
  • Page 13 B.3.2.1 Discovery using NI Measurement & Automation Explorer B.3.2.2 Discovery using Agilent Connection Expert B.3.2.3 Discovery using the Remote Interface Software B.3.3 Web Interface APPENDIX C USB COMMUNICATIONS Edgeport/1 Setup Edgeport/1 Communications using the Remote Interface Software APPENDIX D RS485 COMMUNICATIONS 485DSS Initial Setup HyperTerminal Setup 485DSS Address Command...

  • Page 14: General Information

    1.0 GENERAL INFORMATION Description This manual contains operation and maintenance instructions for Magna-Power Electronics' DP 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’ DP Series combines the best of dc power processing with multiprocessor embedded control.
  • Page 15 Sensing can be established at the output terminal of the power supply or through a rear terminal block for sensing at the load. A smart remote sense detector checks whether or not sense leads are present eliminating the potential of uncontrolled operation. An external interlock can be set to enable operation only when an external connection is made.
  • Page 16 MODELS Features FRONT PANEL CONTROLS Power on/off Start/Stop Rotary voltage/current entry Rotary OVT/OCT entry Menu/Item Display settings Enter/Clear Keypad voltage/current entry Keypad OVT/OCT entry INDICATORS Voltage/current set point OVT/OCT set point Voltage/current output Internal/external control Alarms Rotary/external/remote programming Remote sense enabled Keypad programming Memory setting Armed for auto sequence operation...

  • Page 17: Iec Symbols Used In Manual

    DP Series models utilizing the C Version front panel, DPC, only allow control from the rear connector or with RS232, optional IEEE-488, or optional Ethernet communications. These models are intended for process control applications where front panel controls and displays are not required or desired.

  • Page 18: Specifications

    must be returned to the factory for modification. DP power supplies are optionally available to operate on 380 V or 480 V, 3ö, 50 to 400 Hz mains. For conversion from 380 V to 415 V or from 480 V to 440 V operation, two internal wiring changes must be made to each power module.
  • Page 19 Isolation: Maximum input voltage to ground: ±2500 Vac, Maximum output voltage to ground: ±1000 Vdc for models less than or equal to 1000 Vdc, Maximum output voltage to ground: ±4000 Vdc for models greater than 1000 Vdc, User inputs and outputs: referenced to earth ground. Power Factor: greater than 92% at maximum power.
  • Page 20 Current output monitoring: 100 ohm, +10V Ref: 1 ohm. Analog monitoring accuracy of full scale: Output voltage: ±.50%, Output current: ±.75%, +10V Ref: ±.50%. Digital programming accuracy of full scale: Voltage set point: ±.50%, Current set point: ±.75%, Over voltage trip set point: ±.50%, Over current trip set point: ±.75%.
  • Page 21 DNS Server: 0.0.0.0 Weight: see figure Size and 1.2 through figure 1.5, and Table 1.3 for details. Agency Approvals: CE-marked units meet the following standards (note: optional EMI filter must be installed to meet EMC requirements) EN61010-1:2001-02 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use 89/336/EEC EMC Directive...
  • Page 22 Figure 1.1 Connector (a) JS1, remote interface; (b) JS2, remote sense; ( c) JS3, RS232; (d) JS4, IEEE-488; and (e) JS5, Ethernet (viewed from female end) Table 1.2 MODEL ORDERING SYSTEM – Example DPD500-30/208 - 30 / 208 SERIES FRONT OUTPUT OUTPUT INPUT VOLTAGE...
  • Page 23 Table 1.4 TERMINAL DEFINITIONS FOR CONNECTOR JS1, REMOTE INTERFACE TERM PARAMETER TERM PARAMETER TERM PARAMETER REF GND EXT CTL PGM LINE REF GND FUSE STANDBY VREF EXT RESERVE PHASE LOSS TVREF EXT START VOLT CTL CLEAR RESERVE +2.5V REF CAL STOP REF GND INT CTL...
  • Page 24 Table 1.7 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 25 Table 1.9 10 KW MODELS AND RATINGS INPUT CURRENT (Aac) VOLTS AMPS RIPPLE 208/240 V 380/415 V 440/480 V MODEL mVrms DPA5-900 ± 5 DPA8-600 ± 8 DPA10-500 ± 10 DPA16-300 ± 16 DPA20-250 ± 20 DPA32-150 ± 32 DPA40-125 ±...
  • Page 26 Table 1.10 20 KW MODELS AND RATINGS INPUT CURRENT (Aac) VOLTS AMPS RIPPLE 208/240 V 380/415 V 440/480 V MODEL mVrms DPA16-600 ± 16 DPA20-500 ± 20 DPA32-300 ± 32 DPA40-250 ± 40 DPA50-200 ± 50 DPA80-125 ± 80 DPA100-100 ±100 DPA125-80 ±125...
  • Page 27 Table 1.11 30 KW MODELS AND RATINGS INPUT CURRENT (Aac) VOLTS AMPS RIPPLE 208/240 V 380/415 V 440/480 V MODEL mVrms DPA16-900 ± 16 DPA20-750 ± 20 DPA32-450 ± 32 DPA40-375 ± 40 DPA50-300 ± 50 DPA80-186 ± 80 DPA100-150 ±100 DPA125-120 ±125...
  • Page 28 Figure 1.2 DP Series air cooled, 10 kW to 30 kW, package drawing with D Version front panel...
  • Page 29 Figure 1.3 DP Series water cooled, 10 kW to 30 kW, package drawing with D Version front panels...

  • Page 30: Installation And Power On Check

    2.0 INSTALLATION AND POWER ON CHECK DP 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: Ac Input Connections

    Caution: water cooled power supplies are not water tight. Allowing water penetration is a safety hazard and will damage the power supply. Each master/slave module has a 1/4" NPT female inlet and outlet for water flow. External plumbing interconnects power supply modules. A minimum of 2.50" is recommended behind the enclosure for this hardware and user connections.
  • Page 32 Table 2.1 SUGGESTED AMPACITIES OF 4-CONDUCTOR TYPE S OR SO CABLE Maximum Maximum Wire Size Current Wire Size Current (AWG) (AWG) 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...

  • Page 33: General Operation

    DC power is wired to the power supply by attaching two to four cables to the output bus bars. Use of the shorting output bus bar is optional. The manufacture recommends cables, as specified in Tables 2.2 or 2.3, be crimped to ring terminals and securely fastened to bus bars using 3/8" bolts, lock washers, and mating nuts.

  • Page 34: Preparation For Use

    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 35: Dpa Series Models

    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 36: Dpc Series Models

    at the over voltage trip set point. The over voltage trip (OVT) indicator should turn on, the power and voltage control indicators should turn off, and the supply should shut down. Press the clear key. Now set the over voltage trip set point to maximum which is 110% the full scale rating of the power supply.
  • Page 37 D IA G N O ST IC S FU N CT IO N K E Y S M O DE A N D C O N FIG U R A T IO N LO C : interlock M ENU : selects function PO W ER : indicates pow er output PG L: external input beyond limits ITEM : selects item w ithin function...
  • Page 38 C O N FIG U R A T IO N A L A R M S FU N CT IO N K E Y S IN T CTL: front panel controls enabled LO C K : interlock M EN U : selects function EX T C TL: external controls enabled PG M LN : external input beyond limits ITEM : selects item w ithin function...
  • Page 39 Energizes control circuits w ithout turning on main pow er Figure 2.3 DPC Series controls and indicators...

  • Page 40: Operation

    3.0 OPERATION Front Panel Commands As shipped, the DPA and DPD Series power supplies are configured for local sensing, rotary control, internal programming, and voltage input as specified on the rear label. DPC 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 41 Pressing the start switch places the power supply in a power state. The starting sequence consists of energizing the step start and main contactors followed by enabling of the power processing stages. Once enabled, output voltage and current increase to the set points established by the rotary, front panel keypad, external analog control, RS232, optional IEEE- 488, or optional Ethernet communications.

  • Page 42: Set Point Commands

    voltage and current of the power supply. Over voltage trip and over current trip set the levels at which the power supply will alarm if the levels are exceeded. Period, applicable in auto sequence operation, determines the time period that the power supply will remain at the memory location before advancing to the next memory state.

  • Page 43: Configuration Commands

    With the power supply configured for keypad, first press the menu key to enter set point commands. The volt ctl (voltage control) LED will flash. This indicates that a keypad or up/down entry will create a new voltage set point. Pressing the item key causes the cur ctl (current control) to flash indicating that a keypad or up/down entry will create a new current set point.
  • Page 44 Figure 3.2 Set voltage output at memory displayed Figure 3.3 Set current output at memory displayed...
  • Page 45 Figure 3.4 Set over voltage trip at memory displayed Figure 3.5 Set over current trip at memory displayed...
  • Page 46 Figure 3.6 Set period at memory displayed Remote sense, internal control, external control, and interlock can be selected or deselected when the rem sen, int ctl, ext ctl, or loc LED is flashing. To select, press enter or to deselect, press clear.
  • Page 47 Figure 3.7 Set remote sense Figure 3.8 Set internal control...
  • Page 48 Figure 3.9 Set external control Figure 3.10 Set rotary input...
  • Page 49 Figure 3.11 Set keypad input Figure 3.12 Set external program input...
  • Page 50 Figure 3.13 Set remote input Figure 3.14 Set external interlock...

  • Page 51: Calibration Commands

    voltage set points and current set points are set by the front panel potentiometers and over voltage trip and over current trip are set with the keypad. With keypad control, all four inputs are set with the keypad. By selecting external program, all reference inputs are set with the analog inputs at terminals 3, 22, 4, and 23 of connector JS1.

  • Page 52: Programming Sequential Step Applications

    Once a digital potentiometer has been selected for adjustment, pressing the up/down keys increments or decrements the potentiometer setting. To save the new setting, press the enter key or press the clear key to exit the routine. Instructions for the calibration procedure are discussed in Section 7.3.1.
  • Page 53 Figure 3.15 Calibration...

  • Page 54: Dpa Series Front Panel Commands

    With auto sequence operation, the memory will increment at the end of the time period or by again pressing the start switch on the front panel or by triggering terminal 17 of JS1. This allows the time period programmed to be advanced or allows auto sequence operation without time period programming.

  • Page 55: Configuration Commands

    Figure 3.16 Run mode commands The trip dis key displays over voltage trip and over current trip on the voltage and current display, respectfully. The display reverts to displaying the actual output voltage and output current when the V/I dis key is released. 3.1.2.2 Configuration Commands Figures 3.17 through 3.23 illustrate configuration commands set remote sense, set internal control, set external control, set rotary input, set external program input, set remote input, and set...
  • Page 56 Figure 3.17 Set remote sense Figure 3.18 Set internal control Figure 3.19 Set external control...
  • Page 57 Figure 3.20 Set rotary input Figure 3.21 Set external program input Figure 3.22 Set remote input...

  • Page 58: Calibration Commands

    Figure 3.23 Set external interlock Internal control enables the start, stop, and clear keys on the front panel. External control enables the start, stop, and clear inputs at terminals 17, 19, and 18 of connector JS1 on the rear panel, respectively. Both internal control and external control may be enabled to allow simultaneous control.
  • Page 59 To enter the calibration commands, press menu and then press item. Cal (calibration) will flash in the voltage display. Press enter for 10 seconds or press clear to exit the calibration command menu. Upon entering the calibration commands, the output voltage will be displayed in the voltage display, the potentiometer setting, 0 to 255, will be displayed in the right three digits of the current display, and P and 1 will alternately flash in the left digit of the current display.

  • Page 60: Modes Of Operation

    Modes of Operation 3.2.1 Normal Mode DP series power supplies are normally shipped with its configuration set for rotary mode input, local sensing, internal control, and external control. This configuration is set by front panel commands described in Section 3.1.1.3 and 3.1.2.2 for DPD and DPA Series power supplies, respectively.
  • Page 61 Figure 3.24 Calibration...

  • Page 62: Remote Sensing

    Remote Sensing Remote sensing is available for models 1000 Vdc and below. This feature is used to improve the degradation of regulation which will occur at the load when the voltage drop in the connecting wires is appreciable. This is done by configuring the power supply, master and/or slave module, for remote sensing as described in Section 3.1.1.3 and 3.1.2.2 for DPD and DPA Series power supplies, respectively.
  • Page 63 Figure 3.25 (a) Local and (b) remote sensing...
  • Page 64 Figure 3.26 External (a) resistive, (b) voltage, and © current programming...

  • Page 65: Voltage Programming

    The current set point, over voltage trip, and over current trip can be programmed in the same manner. Referring to the Table 3.1 for terminal identification, use terminal 22 to program the current set point, terminal 4 to program over voltage trip, and terminal 23 to program over current trip.

  • Page 66: Voltage And Current Monitoring

    terminals 1 and 3 of JS1. The input impedance between terminals 1 and 3 is 10K and paralleling the additional resistor produces an equivalent resistance of 5K. The 2 mA current source will produce 10.0 V at the external voltage reference input which will produce full scale output voltage.

  • Page 67: Digital Input And Output Lines

    Digital Input and Output Lines All digital input and output control lines are connected to connector JS1 located on the rear panel. The master and slave modules have identical connectors. As illustrated in figure 3.28, the digital input lines are start, stop, clear, arm, and interlock set. Functionally, the first four digital input control lines emulate the functions on the front panel when external control is enabled.
  • Page 68 standby, phase loss, program line, fuse, over voltage, and over current. All diagnostic indicators have memory retention which saves the fault condition until the power supply is reset. To clear a fault condition, the user must press the clear key on the front panel with internal control or by applying 5.0 V to terminal 18 of JS1 with external control.
  • Page 69 Figure 3.29 Digital output control lines If external interlock is enabled, interlock set requires 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. If the interlock connection is broken then the loc (interlock) LED lights and the power supply shuts down.

  • Page 70: Parallel Operation

    Parallel Operation Two or more DP Series power supplies can be connected in parallel to obtain a total output current greater than that available from one power supply. The total output current is the sum of the output currents of the individual power supplies. Each power supply can be turned on or off separately.

  • Page 71: Pulse Loading

    Figure 3.30 illustrates the terminal connection for master/slave series operation and salient control circuitry. For the master/slave modules, these connections are made internal to the power supply and perform the following functions: The voltage monitoring voltage, VO2, on the master power supply connects to the external voltage set point input on the slave power supply.

  • Page 72: Nomenclature

    Figure 3.30 Master/slave series connection There are internal capacitors across the output terminals of the power supply. These capacitors help to supply high-current pulses of short duration during constant voltage operation. Any capacitance added externally will improve the pulse current capability, but will decrease the safety provided by the constant current circuit.
  • Page 73 AC INPUT: A: Phase A input. B: Phase B input. C: Phase C input. GND: Earth ground. DC OUTPUT: VO+: Positive output. VO- : Negative output. COM: Midpoint of positive and negative output, PROGRAMMING INPUTS AND OUTPUTS: REF GND: Reference ground. +10V REF: Reference for external analog control.
  • Page 74 DIGITAL INPUT CONTROL LINES: STOP: Remote stop. START: Remote start. CLEAR: Clear. ARM: Arm. INTERLOCK SET: Interlock set. DIGITAL OUTPUT CONTROL LINES: STANDBY: Standby. POWER: Control circuit power. INT CTL: Internal control. EXT CTL: External control. PGL: Program line shutdown. OVT: Over voltage trip shutdown.
  • Page 75 FRONT PANEL: PWR: Control power. MENU: menu. ENTER: enter. ITEM: specific item within menu selection. V/I DIS: displays voltage and current set point. TRIP DIS: displays over voltage trip and over current trip set point. MEM: Memory. REM SEN: Remote sense. INT CTL: Internal control.

  • Page 76: Programming With Scpi Commands

    4.0 PROGRAMMING WITH SCPI COMMANDS Command Features The DP 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 77: Scpi Subsystem Commands

    Configure the power supply for remote operation using the front panel commands described in Section 3.1.1.3 and 3.1.2.2 for DPD and DPA Series power supplies, respectively. Connect a 9-conductor straight through, D-subminiature cable between the computer interface and connector JS3 at the rear of the power supply. Verify the availability of the RS232 port selected.

  • Page 78: Volt And Volt:trig

    Figure 4.1 RS-232 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 79: Volt:prot

    Command Syntax: [SOURce]:VOLTage[:LEVel][:IMMediate][:AMPLitude] <NRf+> [SOURce]:VOLTage[:LEVel]:TRIGgered[:AMPLitude] <NRf+> 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 80: Curr And Curr:trig

    4.3.1.3 CURR and CURR:TRIG These commands set the immediate current level or the pending triggered current level of the power supply. The immediate level is the current programmed for the power supply output. The pending triggered level is a stored current value that is transferred to the power supply output when a trigger occurs.

  • Page 81: Per (Dpd Series Only)

    CURR:PROT? returns presently programmed OCT level. CURR:PROT? MAX and CURR:PROT? MIN return the maximum and minimum programmable OCP levels. Command Syntax: [SOURce]:CURRent:PROTection[:LEVel] <NRf+> 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 (DPD Series only) This command sets the period of time that the power supply will remain in the state during auto...

  • Page 82: Measure Subsystem

    4.3.2 Measure Subsystem The Measure Subsystem returns the voltage and current measured at the output of the power supply. 4.3.2.1 MEAS:VOLT? 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>...

  • Page 83: Status Subsystem

    the return string is an error number followed by a corresponding error message string. The errors are stored in a FIFO (first-in, first-out) buffer. As the errors are read, they are removed from the queue. When all errors have been read, the query returns 0,”NO ERROR.” If more errors have accumulated than the queue can hold, the last error in the queue will be -350,”Queue Overflow”...

  • Page 84: Questionable Register

    External Control Interface is waiting for trigger STBY Standby Power Constant Voltage RSEN Remote Sense 1024 Constant Current 2048 STBY/ALM Standby or Alarm 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.

  • Page 85: Outp

    4.3.5.1 OUTP? This query returns the output state of the power supply. A 1 indicates the power supply is energized, and a 0 indicates the power supply is off. Command Syntax: none Query Syntax: OUTPut[:STATe]? Returned Parameters: 0 | 1 Related Commands: *RST, *RCL, *SAV 4.3.5.2 OUTP:ARM (DPD Series only) This command selects between the modes of operation.

  • Page 86: Outp:start

    Related Commands: *RST, OUTP:START, OUTP:STOP 4.3.5.3 OUTP:START This command closes the power supply’s input contactor and initiates either normal or program mode. Auto sequence mode will be initiated if the ARM option is enabled. Normal mode energizes the power supply with the current parameters for voltage set point, current set point, over voltage trip, and over current trip.

  • Page 87: Abort Subsystem

    OUTPUT:PROTECTION:CLEAR Query Syntax: none Related Commands: *RST, *RCL, *SAV 4.3.6 Abort Subsystem This subsystem cancels any trigger actions presently in process. Any pending trigger levels are reset to their immediate values. ABOR also resets the WTG bit in the Operation Register. If initiate continuous is enabled (INIT:CONT ON), the trigger subsystem immediately re-initiates itself after ABORt, thereby setting WTG.

  • Page 88: Calibrate Subsystem

    only for a single trigger action; INIT must then be repeated prior to further trigger commands. If INIT:CONT is ON, then the trigger subsystem is continuously enabled. INIT:CONT? returns the state of the continuous trigger mode. Command Syntax: INITiate[:IMMediate] <> INITiate:CONTinuous <bool>...

  • Page 89: Cal:pass

    Query Syntax: CAL:IDN? Returned Parameters: <string> Related Commands: *IDN 4.3.9.2 CAL:PASS This command protects against system calibration corruption and initiates the calibration sequence. Command Syntax: CAL:PASS <NR1> 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.

  • Page 90: Cal:scal:curr

    CAL:SCAL:VOLT 16.0 Query Syntax: CALibrate:SCALe:VOLTage? <> Returned Parameters: <NR3> Related Commands: None 4.3.9.5 CAL:SCAL:CURR This command sets the current scale factor for the power supply. Command Syntax: CALibrate:SCALe:CURRent <NRf> Examples: CALIBRATE:SCALE:CURRENT 900.0 CAL:SCAL:CURR 900.0 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...

  • Page 91: Cal:stop

    Command Syntax: CALibrate:DEFaults <> Examples: CALibrate:DEFaults CAL:DEF Query Syntax: None Related Commands: None 4.3.9.8 CAL:STOP This command terminates the calibration subsystem. Command Syntax: CALibrate:STOP <> 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.

  • Page 92: Cont:int

    Related Commands: None 4.3.10.2 CONT:INT This command enables or disables the front panel switches and keys for start, stop, arm, and clear. The query command, CONT:INT?, returns the status of internal control. Command Syntax: [CONFigure]:CONTrol:INTernal <bool> Parameters: 0 | OFF | 1 | ON Examples: CONF:CONT:INT ON CONT:INT 0...

  • Page 93: Conf:setpt

    The query command, INTE? returns the status of external interlock. Command Syntax: [CONFigure]:INTErlock <bool> Parameters: 0 | OFF | 1 | ON Examples: CONF:INTE ON INTE 0 Query Syntax: [CONFigure]:INTErlock? Returned Parameters: 0 | 1 Related Commands: None 4.3.10.5 CONF:SETPT This command sets the operational mode of the power supply: rotary, keypad, external, or remote.

  • Page 94: Gpib:addr (Optional Gpib Only)

    Returned Parameters: <Firmware Ver. XX.Y> Related Commands: None 4.3.11.2 GPIB:ADDR (Optional GPIB only) This command sets the address of the GPIB module of the power supply. The address can be 1 to 30 where address 0 is normally assigned to the GPIB Master. The factory default address is 1. Command Syntax: [SYSTem][:COMMunicate]:GPIB:ADDRess <NR1>...

  • Page 95: Net:ser? (Optional Ethernet Only)

    bytes are separated by hyphens. The MAC address is unique to the instrument and cannot be altered by the user. Query Syntax: [SYSTem][:COMMunicate]:NETwork:MAC? Parameters: None Examples: SYST:COMM:NET:MAC? NET:MAC? Returned Parameters: <XX-XX-XX-YY-YY-YY> Related Commands: NET:ADDR, NET:GATE, NET:SUBN, NET:PORT, NET:HOST, NET:DHCP 4.3.12.3 NET:SER? (Optional Ethernet only) This command sets the serial number of the Ethernet module.

  • Page 96: Net:gate (Optional Ethernet Only)

    Returned Parameters: <string> Related Commands: NET:MAC, NET:GATE, NET:SUBN, NET:PORT, NET:HOST, NET:DHCP 4.3.12.5 NET:GATE (Optional Ethernet only) This command sets the Gateway IP address of the Ethernet module of the power supply. The factory default Gateway IP setting is 192.168.1.1. Command Syntax: [SYSTem][:COMMunicate]:NETwork:GATE <string>...

  • Page 97: Net:port (Optional Ethernet Only)

    4.3.12.7 NET:PORT (Optional Ethernet only) This command sets the Socket (Port) of the Ethernet module of the power supply. The factory default port setting is 50505. The factory recommends port values greater than 49151 to avoid conflicts with registered Ethernet port functions. Command Syntax: [SYSTem][:COMMunicate]:NETwork:PORT <integer >...

  • Page 98: Recall Subsystem (Dpd Series Only)

    Examples: SYST:COMM:NET:DHCP 0 NET:DHCP 1 Query Syntax: [SYSTem][:COMMunicate]:NETwork:DHCP? Returned Parameters: <NR1> Related Commands: NET:MAC, NET: ADDR, NET:GATE, NET:SUBN, NET:PORT, NET:HOST 4.3.13 Recall Subsystem (DPD Series only) The recall subsystem sets the current memory location of the power supply. In remote mode, 100 (0 - 99) memory locations are available for programming.
  • Page 99 Vref = Vset•Mod(VMOD) Vref = Vset+Vos(VMOD) where Mod(VMOD): the modulation multiplier as a function of the VMOD input Vos(VMOD): the offset voltage as a function of the VMOD input Vset: set point voltage as defined by keypad entry or remote entry. With current control modulation enabled, type 0 and type 1 modulation are described by: Iref = Iset•Mod(VMOD) Iref = Iset+Ios(VMOD)

  • Page 100: Mod:save

    modulation defined, see Section 4.3.14.1, the Mod(VMOD) can have a range of 0 to 1000. With type 1 modulation defined, Vos(VMOD) or Ios(VMOD) can be positive or negative as long as Vref or Iref is within the bounds of the power supply voltage or current. The lookup table enables a user to define a piece-wise linear curve.

  • Page 101: Mod:tabl:load

    Query Syntax: None Returned Parameters: None Related Commands: MOD:TABL:LOAD 4.3.14.4 MOD:TABL:LOAD This command moves MODulation:TABLe data from the cache table to the active table and optionally changes the voltage and current setpoints simultaneously. The first parameter is the voltage setpoint and the second is the current setpoint. Command Syntax: MOD:TABL:LOAD [<NRf>, <NRf>] Examples:...

  • Page 102: Ieee-488 Event Processing

    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. The IEEE-488 standard defines a method for status reporting. As illustrated in figure 4.1, the method uses the IEEE-488.1 Status Byte (STB). Three bits of this byte are defined as: Master Status Summary (MSS) Bit, Event Status Bit (ESB), and Message Available (MAV) Bit.
  • Page 103 return parameter is weighted as shown in Table 4.4. The Power On Bit (PON) is set every time the power supply is reset. It can be used to detect a power outage or power supply reset. Figure 4.1 Status Byte Generation...

  • Page 104: Read And Set Event Status Enable Register

    Figure 4.2 ESE and ESR Generation Query Syntax: *ESR? Example: *ESR? Return Parameter: <NR1> (Register value) Related Commands: *CLS, *ESE, *ESE? Table 4.4 EVENT STATUS REGISTER BIT POS. WEIGHT ABBREVIATION DESCRIPTION Operation Complete Not Used Query Error Device Dependent Error Execution Error Command Error Not Used...

  • Page 105: Read Status Byte Register

    Example: *ESE 255 Query Syntax: *ESE? Return Parameter: <NR1> Related Commands: *ESR?, *STB? 4.5.4 Read Status Byte Register This query reads the Status Byte Register (STB), defined in Table 4.5, which contains the Master Status Summary (MSS) bit, Event Status (ESB) bit, and the Message Available (MAV) bit. Unlike reading ESR, the STB is not cleared after it is read.

  • Page 106: Read Model Number, Part Number, And Serial Number

    Command Syntax: *SRE <NR1> Example: *SRE 20 Query Syntax: *SRE? Return Parameter: <NR1> (Register value) Related Commands: *ESE, *ESR Table 4.6 SERVICE REQUEST ENABLE REGISTER BIT POS. WEIGHT ABBREVIATION DESCRIPTION Not Used Not Used Not Used Not Used Message Available Event Status Bit Not Used Not Used...

  • Page 107: Recall

    CURR:PROT[:LEV] Command Syntax: *SAV <NR1> Parameters: 0 - 99 Example: *SAV 1 Query Syntax: None Related Commands; *RCL, MEM 4.5.8 Recall This command restores the power supply to a state that was previously stored in memory location with a *SAV command. The *RCL command can recall data in 100 memory locations. The following parameters are recalled: VOLT[:LEV][:IMM] CURR[:LEV][:IMM]...

  • Page 108: Error Messages

    CURR[:LEV]:TRIG 0 VOLT[:LEV][:IMM] 0 VOLT[:LEV]:TRIG 0 PER 0 INIT:CONT OFF VOLT:PROT[:LEV] 110% of MAX CURR:PROT[:LEV] 110% of MAX *RST also forces an ABORt command. Command Syntax: *RST <> Query Syntax: None Related Commands: None Error Messages System error messages are obtained with the SYST:ERR? query. The error number is the value placed in the error queue.

  • Page 109: Restricted Command Set

    Restricted Command Set Commands and queries described in this Section 4.0 require the power supply to be configured for remote operation. There are instances when the power supply may be configured for keypad, rotary, or external programming and certain SCPI command features may be desirable. As defined in Table 4.9, a reduced set of commands and queries are available to allow this mode of operation.
  • Page 110 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 NET:MAC? NET:SER? NET:ADDR NET:GATE NET:SUBN NET:PORT NET:HOST NET:DHCP Recall (DPD Series only) Modulation MOD:TYPE:SEL (DPD Series only) MOD:TABL IEEE Standard *CLS *ESR? *ESE...

  • Page 112: Interfacing Using The Remote Interface Software

    5.0 INTERFACING USING THE REMOTE INTERFACE SOFTWARE The Remote Interface Software is shipped with DP 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 113 Figure 5.1 Configuration setup Figure 5.2 GPIB communications setup...

  • Page 114: Command Panel

    Figure 5.3 Find devices and (b) change device’s GPIB settings press enter at the bottom right side of the window. Other than the keypad, operation is virtually identical to the front panel commands described in Section 3.1. Command Panel The Command Panel is illustrated in figure 5.6. 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 115 Event Status Enable register (ESE): mask register for the ESR. The register is described in Section 4.5.3. Figure 5.4 Virtual Control Panel for D Version models Figure 5.5 Virtual Control Panel for A Version models...

  • Page 116: Calibration Panel

    Figure 5.6 Command 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 117: Firmware Panel

    the power supply. The Output frame can be cleared or saved to a file by pressing the clear button 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.
  • Page 118 Figure 5.7 Register Panel Figure 5.8 Calibration Panel...
  • Page 119 Figure 5.9 Firmware Panel Figure 5.10 Modulation Panel for Version D models only...

  • Page 120: Principle Of Operation

    6.0 PRINCIPLE OF OPERATION General Figure 6.1 illustrates the block diagram of the DP Series power supply. As illustrated, DP Series power supplies are comprised of master/slave modules. Master/slave modules have a power ratings of 5 kW, 10 kW, or 15 kW to produce 10 kW, 20 kW, or 30 kW system output, respectively.
  • Page 121 Figure 6.1 Block diagram...

  • Page 122: Slave Module

    The dc output voltage is filtered with a pie section filter. This, in combination with the dc link inductors, form a double stage inductive capacitive (LC) filter. The gate driver board supports a synchronized modulation scheme which integrates power semiconductor switching of the switching power supply, polyphase chopper, and medium frequency link inverter.

  • Page 123: Maintenance And Trouble Shooting

    7.0 MAINTENANCE AND TROUBLE SHOOTING General The DP 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 124: Calibration

    Calibration The master and slave modules have independent control boards. Calibration requires independent calibration of both boards. 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 3.1.1.4 and 3.1.2.3 for the DPD and DPA Series power supplies, respectively.

  • Page 125: Driver Board

    7.3.2 Driver Board The driver board contains two potentiometers which are used to set under voltage and over current protection in the polyphase chopper circuitry. These potentiometer do not normally need adjustment in the field. 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.

  • Page 126: Applications

    8.0 APPLICATIONS General DP 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 127: Leadless Remote Sensing

    Table 8.1 RAMP GENERATOR SEQUENTIAL STEP PROGRAM Over Over Voltage Current Voltage Current Period Memory Set (V) Set (A) Trip (V) Trip (A) 9998 Leadless Remote Sensing Remote sensing is used to improve the degradation of regulation which will occur at the load when the voltage drop in the connecting wires is appreciable.
  • Page 128 source. Figure 8.2 Leadless remote sensing Figure 8.3 IV characteristics for a typical photovoltaic array...

  • Page 129: Battery Charger

    Table 8.2 MODULATION TABLE FOR LEADLESS REMOTE SENSING (TYPE 1) VMOD Vos(MOD) (Vdc) 0.00 10.0 0.20 9999 0.00 Table 8.3 MODULATION TABLE FOR EMULATION OF A PHOTOVOLTAIC ARRAY (TYPE 0) VMOD Mod(VMOD) (Vdc) (Vdc) (Adc) 0.000 1.000 2.085 0.952 10.0 3.645 0.905 17.5...
  • Page 130 Equalization is generally not required for every charge cycle. Table 8.4 illustrates the different charging steps and Table 8.5 provides the recommended charging voltage per cell for different battery technologies. Caution: All battery parameters presented in this section are guidelines and the user should refer to and use manufacturer’s specifications in any battery charging application.
  • Page 131 Table 8.7 defines the modulation parameters for applying temperature compensation to a standard 12 V lead acid battery using a DPD16-200 power supply. The modulation control parameter should be set to voltage control and modulation type should be set to 1. Table 8.4 CHARGING PROGRAMMING AND CHARACTERISTICS STEP 1...
  • Page 132 Table 8.6 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 133: Appendix A Ieee-488 Communications

    APPENDIX A IEEE-488 COMMUNICATIONS DP 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 134 To operate the power supply with MAX, the instrument must first be located for communications. The following steps describe this procedure. Run the MAX application program. In the Configuration window, press the + sign to the left of Devices and Interfaces to view the installed devices.

  • Page 135: 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 136: Connectivity

    Start the HyperTerminal application and when prompted select “TCP/IP (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.

  • Page 137: Discovery

    approximately 4 seconds. Observe that the LAN LED rapidly flashes and after 4 seconds, release the LAN Reset button. The LAN configuration password will be reset to blank and 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 &...
  • Page 138 Open a WC3 compliant web browser such as Microsoft Internet Explorer, Firefox, or Opera to http://[ipaddress]/ or http://[name]/. The instrument information screen will be 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.
  • Page 139 Figure B.1 Information Panel Figure B.2 Configure Panel...
  • Page 140 Figure B.3 Reboot in Progress Panel Figure B.4 Web Control Panel...

  • Page 141: Appendix C Usb Communications

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

  • Page 142: 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 143: 485Dss Address Command

    Bits per second to 9600. Data bits to 8. Parity to None. 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 144 In the Properties dialog box, press the Configure button to open the COM Properties dialog box. Change the Bits per second to 19200 and then press the OK button. Click the OK button on the Properties dialog box. On the menu bar, select Call to reestablish communications at the new baud rate. Press Enter.
  • Page 145 Figure D.1 RS485 (a) 2-wire and (b) 4-wire connections...

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