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Sorensen DCR-B2 series Installation Manual

500 and 1000 watts
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Sorensen
SORENSEN
Division of Elgar
9250 Brown Deer Road
San Diego, CA 92121-2294
1-800-525-2024
1-800-733-5427
Tel: (858) 450-0085
Fax: (858) 458-0267
Email: sales@sorensen.com
sales@elgar.com
www.sorensen.com
www.elgar.com
This document contains information proprietary to Sorensen, Elgar Electronics Corporation. The information
contained herein is not to be duplicated or transferred in any manner without prior written permission from Sorensen.
March, 2000
DCR-B2 SERIES
500-Watt &1000-Watt
Power Supplies
Installation Manual
Manual covers DCR-82 models:
500-Watt
10-4082
20-2582
40-1382
60-982
80-682
150-382
300-1.582
600-.7582
©2000 by Sorensen, Division of Elgar Electronics Corporation
1000-Watt
10-8082
20-5082
40-2582
60-1882
80-1282
150-682
300-382
600-1.582
Document No. M360644 Rev B

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Summary of Contents for Sorensen DCR-B2 series

  • Page 1 ©2000 by Sorensen, Division of Elgar Electronics Corporation This document contains information proprietary to Sorensen, Elgar Electronics Corporation. The information contained herein is not to be duplicated or transferred in any manner without prior written permission from Sorensen. March, 2000...
  • Page 2 Buyer returns the defective product in the original, or equivalent, shipping container; • if, upon examination of such product by Sorensen it is disclosed that, in fact, a defect in materials and/or workmanship does exist, that the defect in the product was not caused by improper conditions, misuse, or negligence;...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION 1 INTRODUCTION PAGE INTRODUCTION ....................... 1 DESCRIPTION ........................1 1.2.2 Automatic Crossover ..................... 1 1.2.3 Remote Sensing:········ .. ······ ................... 2 1.2.4 Series Operation ....................2 1.2.5 Parallel Operation ....................2 1.2.6 Remote Programming .................... 2 1.2.
  • Page 4 TABLE OF CONTENTS (Con't) CURRENT MODE OPERATION ..................16 3.3.1 Resistance Programming Current Mode .............. 17 3.3.2 Signal Programming Current Mode ..............18 3.3.3 Alternate Current Programming Method .............. 19 3.3.3.1 Calibration Procedure ................19 PARALLEL OPERATION ....................21 3.4.1 Direct Paralleling ....................21 SERIES OPERATION .....................

  • Page 5: Introduction

    TB2 or from the optional binding posts on the front panel of the supply. A variety of Sorensen power supply application notes are available through your Sorensen Service Representative. These notes detail many hook-up configurations and special usages available to meet most power supply applications.

  • Page 6: Remote Sensing

    1.2.3 .......................... Remote Sensing Terminals located on rear-mounted terminal board TB3 offer a means of extending a unit's regulating point from the output terminals to the load. This effectively compensates for variations in the load lead voltage drop. Section 3 outlines the connections for remote sensing. 1.2.4 .........................
  • Page 7 The standard DCR-82 unit is designed for operation from a nominal 115 Vac input; however, units may be purchased factory modified to accept inputs of 208, 220 or 230 Vac (modifications M1, M2 or M3 respectively). The sides of the DCR-82 have inserts to allow attachment of slide rails. Consult the factory for information on these optional slide rails.
  • Page 8 TABLE· 1-1 SPECIFICATIONS DCR-B2 SPECIFICATIONS 500 WATT SERIES OUTPUT POWER SIGNAL INPUT POWER OUTPUT IMPEDANCE REMOTE TEMPCO PROGRAMMING (Typical) Constant Constant Voltage Current Max. Voltage Current Range Power (Aac) Voltage Current (Ade) Ripple Ripple (Vac) Factor (PARO) (PARO) (Volt In/ Model (Vdc) 4o•c...

  • Page 9: Dcr-82 Specifications

    TABLE 1.;.2 SPECIFICATIONS DCR-82 SPECIFICATIONS 1000 WATT SERIES OUTPUT POWER INPUT POWER REMOTE TEMPCO PROGRAMMING SIGNAL Constant Constant Voltage Current Max. Voltage Current Range P ower Voltage (Ade) (Ase) Factor Current Ripple Ripple (Vac) (PARD) (PARO) (Voll In/ (Oh ms/ °...

  • Page 11: General

    After unpacking, perform initial inspections and preliminary electrical check procedures to assure that the unit is in good working order. If it is determined that the unit is damaged, the carrier should be notified immediately. Repair problems should be directed to the nearest Sorensen representative, or to the factory.

  • Page 12: Mechanical Installation

    2.4 ................. ��;� ..MECHANICAL INSTALLATION ii ..... As received, the unit is ready for bench use. To adapt for rack mounting, simply remove feet and reinstall the feet retaining screws. As the 500 watt units are convection cooled, and the 1000 watt units are fan cooled, care must be taken when rack mounting to assure free air flow.
  • Page 13 Turn COARSE and FINE CURRENT c::ohtrois fully counterclockwise. Set COARSE VOLTAGE control to its mid position. Connect a wire, of sufficient gauge to handle full output current, across the output terminals. [TB2 (+) to TB2 (-)] Set unit power to ON. The CURRENT mode indicator will illuminate. Rotate COARSE CURRENT control slowly clockwise until a current indication appears.

  • Page 14: General

    SECTION 3 ________________ OPERATION GENERAL .......................... This section provides basic operating instructions, and details the methods by which DCR-82 power supplies may be adapted to their more common applications including remote sensing, remote programming, series and parallel operation. Table 3-1 identifies the operating controls shown in Figure 3-1, and describes their functions.
  • Page 15 CONTROUINDICATOR FUNCTION POWER indicator A white light connected across the primary of input transformer T2. Illuminates when the unit POWER switch is in the ON position. POWER switch On 500 watt units a 115 volt, 15 ampere circuit breaker is used to connect or disconnect input line voltage.
  • Page 16 REMOTE SHUTDOWN Sink 1 mA to Regulator Common TB3-11 CURRENT CONTROL Internal Current Shunt, Positive. TB3-10 {Approx. 0.4V for rated output.) Internal Current Shunt, Negative. TB3-9 CURRENT PROGRAMMING T83-8 Resistance: Remove jumper 7-8, connect program resistor between 8-9. Voltage: Remove 7-8 connect signal (0-10V) to 8 positive, TB3-7 return to 9.

  • Page 17: Voltage Mode Operation

    VOLTAGE MODE OPERATION ..................3.2.1 ..........................Local Sensing DCR-82 series units are shipped ready for use in the local sensing configuration, that is, with unit regulation occurring at the output tenninals. Local sensing is usually acceptable for applications where the load current is nearly constant (or when large output conductors are used). In special applications (where load regulation is critical) remote sensing may be used (see para.
  • Page 18 NOTE Voltage drop should not exceed 3 volts maximum per load lead, 1 volt maximum on 150 to 600V models. Voltage across the load is equal to voltage output of the unit minus line drops. On high voltage models (150 to 600V), the 3V drop in the extemal load lines may cause damage to the OCR control amplifier under load short circuit conditions.

  • Page 19: Resistance Programming Voltage Mode

    \,-------A WIRE RESISTANC E -- - .._ .15 V LOST ---- OCR-B2 OUTPUT LOAD = 10A 50.3V R = 50 VO L TS A TO B = 50 "'- ._2� ..015 0 - OUT ,------➔B WIRE RESISTANCE _ S EN S E ,.._ __ . _ 1 5 _ V _ L _ O _ ST _ ___ � Figure 3-4 Illustration of Load Lead Resistance (Remote Sensing) To adapt unit for remote sensing operation, proceed as follows: With no load on the unit, apply input power and set output voltage to the desired...
  • Page 20 SENSE OPER 9 10 11 Figure 3-5 Resistance Programming Voltage Mode Connections To adapt unit to resistance programming operation, proceed as follows: Set unit power to OFF. Remove link between terminals 5 and 6, and connect a programming resistor between terminals 4 and 5 (Figure 3-5). Use shielded or twisted wire for interconnecting leads.

  • Page 21: Signal Programming Voltage Mode

    3.2.4 ................... Signal Programming Voltage Mode A fixed or variable voltage signal may be fed into the voltage mode amplifier circuit to provide a fixed or variable voltage output. The selected signal source output should be floating, unless the positive output of the DCR-B2 supply is grounded. The required signal is 0-1 0V capable of sourcing 1 mA.

  • Page 22: Resistance Programming Current Mode

    Set POWER switch to ON, and tum CURRENT controls to desired current regulation setting. CURRENT MODE light will illuminate, and unit will deliver constant, regulated current to load. NOTE Any output instability (such as oscillations due to inductive loading) can be eliminated by adjusting potentiometer R36 on the unit PCB.

  • Page 23: Signal Programming Current Mode

    To adapt unit to the current mode, resistance programming configuration, proceed as follows: Set POWER switch to OFF. Remove the link between terminals 7 and 8, and rotate VOLTAGE controls to mid position. Set SW1 for 0.400 mV operation (SW1-1 = Closed, SW1-2&3 = Open).

  • Page 24: Alternate Current Programming Method

    CAUTION In 400 mV range setting, do not apply more than 400 mV to the DCR-82, as the DCR-82 current limit will be dangerously high. 3.3.3 ................... Alternate Current Programming Method This alternate programming method is recommended for the DCR-82 power supply. These models are designed to accept control inputs of 400 mV.

  • Page 25: Parallel Operation

    NOTE A small positive current is desirable to insure that the zero is not set too low. Set signal source and DCR-82 power OFF. Disconnect the signal source only from terminals 8 and 9 of the DCR-82. Insure that R1 and R2 in Figure 3-7 are still connected to TB3-8 and TB3- 9.

  • Page 26: Direct Paralleling

    DCR-B2 single phase units may be paralleled using either of two methods. One method uses a master/slave approach, and the other involves direct paralleling. Each method has its advantages. In master/slave operation the output voltage regulation is maintained, but only four units may be paralleled;...
  • Page 27 NOTE Up to three slave units may be added by extending this procedure. With no load applied, set master unit POWER switch to ON, and adjust desired system output (plus total load lead drop unless in the remote sensing mode). Set unit power to OFF. Connect load leads from both units to the load.

  • Page 28: Series Operation

    SERIES OPERATION ......................3.5.1 ..................Direct Series Connections (Figure 3-10) The 1 0Vdc to 80Vdc DCR-82 models may be directly series-connected for up to a total output of 200 Vdc. The 150 and 300 volt models may only have two units in series, (for 300Vdc and 600Vdc total output, respectively) and the 600 volt unit can not be series connected.

  • Page 29: Master/Slave Connection

    5 watts rating or greater. Resistance values for two identical units in series have been calculated for all voltage ranges in the DCR-B2 series, and are summarized in Table 3-3 for each application. See Table 3-2 for resistor values. See Table 3-3 for diode values.
  • Page 30 MASTER SLAVE SENSE &.fR OPER SENS£ 3 • & • , e. t 1a 11 LOAD Figure 3-11 Master/Slave Connections Series Operation Table 3-2 RA/RB Value Two Identical DCR-B2 Units Series Connected (V) RATED 10 * Open Open 145K 295K volt units, terminal 3 of the slave unit is connected directly to the plus(+) sense terminal of the master unit.
  • Page 31 Table 3-3 Recommended Rectifiers/Heatsinks Series Operation Heatsink** Manufacturer/ Sorensen Part Model Type Dim. Inches (mm ) 4x4x 1/8 10-40B2 1N4587 587571-1 (102) (102) 1N4587* 587571-3 10-80B2 IR-1N4587 587571-1 (203) (203) IR- 1N4587 587571-3 3-1/2 3-1/2 20-25B2 1N1183 587382-1 (8 9 ) (8 9 ) (3 .

  • Page 32: Unit Shutdown Circuit

    With POWER switches OFF, connect each unit to an appropriate input power source (115/208/220/230 Vac). All units in the sysem can be connected through a common ac line OFF/ON switch. Proceed as follows: Set the COARSE and FINE CURRENT controls of each unit fully clock-wise.

  • Page 33: Ovp

    3. 7 ............................... OVP The OVP is a fast-response silicon-controlled rectifier (SCR) crowbar circuit. 3. 7 .1 ....•..•.•..•..•..•..•....•.•......•..•..•.•..OVP Adjustment The OVP operating point is set as follows: With OVP potentiometer R18 (accessible through hole in front panel) fully dockwise, set unit power to ON, and adjust front panel control to the desired trip point as indicated on the unit voltmeter.

  • Page 34: Changeable Current Programming Parameters

    3.8 ........... CHANGEABLE CURRENT PROGRAMMING PARAMETERS In the DCR-82 Series, current programming parameters are changeable. There are two input ranges which are switch setable for the current mode signal voltage. The first is the standard 0-400mV input voltage and the second is a new range of 0-10V. These ranges are chosen by utilizing the SW1 switch located on Control Board Number 1063005.

This manual is also suitable for:

10-40b220-25b260-9b240-13b280-6b2150-3b ... Show all

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