Sorensen SFA Series Operation Manual Download

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SFA Series

DC Power Supplies

Operation Manual

November 7, 2007

Document No. M550292-01 Rev C

This document contains information proprietary to Elgar Electronics Corporation. The information contained herein is
not to be duplicated or transferred in any manner without prior written permission from Elgar Electronics

Corporation

Elgar Electronics Corporation
9250 Brown Deer Road
San Diego, CA 92121-2294

1-800-73ELGAR (1-800-733-5427)
Tel: (858) 450-0085
Fax: (858) 458-0267

Email: [email protected]

www.elgar.com

Summary of Contents for SFA Series

Page 1: ...rietary to Elgar Electronics Corporation The information contained herein is not to be duplicated or transferred in any manner without prior written permission from Elgar Electronics Corporation Elgar...

Page 2: ......

Page 3: ...has not been repaired or modified by anyone other than EEC authorized personnel This warranty is exclusive and in lieu of all other warranties expressed or implied including but not limited to implie...

Page 4: ...This page intentionally left blank M550292 01 Rev C ii...

Page 5: ...or disconnecting any cable In normal operation the operator does not have access to hazardous voltages within the chassis However depending on the user s application configuration HIGH VOLTAGES HAZARD...

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Page 7: ...equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause...

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Page 9: ...ow Voltage and Electromagnetic Compatibility Directive Requirements of the European Community Since the Low Voltage Directive is to ensure the safety of the equipment operator universal graphic symbol...

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Page 11: ...ns 1 4 1 2 4 Physical Characteristics 1 4 SECTION 2 INSTALLATION 2 1 2 1 Inspection 2 1 2 2 Contents of Shipment 2 1 2 3 Input Output Connections 2 2 2 4 Location and Mounting 2 3 2 4 1 6U Chassis Rem...

Page 12: ...5 3 7 Remote Shutdown S D 3 16 3 8 Master Slave Operation 3 16 3 8 1 Parallel Operation 3 16 3 8 2 Series Operation 3 17 SECTION 4 VERIFICATION AND CALIBRATION 4 1 4 1 Introduction 4 1 4 1 1 Verificat...

Page 13: ...to 30kW 2 10 Figure 3 1 Front Panel Controls and Indicators 3U model shown 3 1 Figure 3 2 Rear Panel Connectors 3U model shown 3 3 Figure 3 3 Shaft Lock 3 4 Figure 3 4 ANALOG CONTROL Connector J1 Pin...

Page 14: ...This page intentionally left blank iv M550292 01 Rev C...

Page 15: ...e environmental electrical and physical characteristics for the SFA Series power supplies 1 2 1 ENVIRONMENTAL CHARACTERISTICS Note The SFA Series power supplies are intended for indoor use only Parame...

Page 16: ...nput constant load Current 0 05 of maximum output current Current Ripple 1 p p of full scale current The output current will recover to within 1 of the set current value within 1ms for a 10 to 100 or...

Page 17: ...to sense output voltage at point of load for accurate voltage measurement Maximum line drop 5 of rated voltage per line for 60 100V models 2 of rated voltage per line for models 160V and greater Overv...

Page 18: ...0 300A 0 160V 0 31A 0 63A 0 94A 0 125A 0 156A 0 188A NOTE Contact factory for availability on specific models 1 2 4 PHYSICAL CHARACTERISTICS Dimension 3U Models 6U Models Width 19 00 in 48 3 cm 19 00...

Page 19: ...future claims Direct repair issues to Elgar Customer Service at 1 800 73ELGAR 1 800 733 5427 2 2 CONTENTS OF SHIPMENT Depending on the model configuration and options available for your SFA Series po...

Page 20: ...he recommended long term exposure limit for ozone is 0 1 PPM 0 2 mg m3 CAUTION For proper connection to the mains a 100 amp circuit breaker or fuse for 3U units and a 200 amp circuit breaker or fuse f...

Page 21: ...nch equipment rack If additional instrumentation is mounted in the rack no additional clearance is required between the SFA series and other power supplies or instruments 1 Support the unit using rack...

Page 22: ...see Table 2 3 6U models see Table 2 3 User load s ANALOG CONTROL Connector J1 Control Interface See Table 3 1 for description Sense Connector Used for remote sense Refer to Section 3 4 Parallel In Ou...

Page 23: ...itions may have different requirements Note that these recommendations are for copper wire only For higher ratings wires can be paralleled refer to the National Electrical Code Size Temperature Rating...

Page 24: ...increased environmental temperature Thus short cables with generously derated gauge and insulation properties are recommended for power source applications Avoid using published commercial utility wir...

Page 25: ...input current requirements and Section 1 2 3 for output current requirements Input Line Current Input V 5 kW 10 kW 15 kW 20 kW 25 kW 30kW Unit of Measure 200 240VAC 21 41 62 83 103 124 340 440VAC 14 2...

Page 26: ...incorporated a overvoltage shutdown circuit on the output The overvoltage is preset for approximately 102 of the total rated output voltage If the output voltage exceeds this amount for more than a f...

Page 27: ...Sorensen SFA Series Installation Figure 2 1 SFA Series Outline Drawing 3U Models 5kW to 15kW Slide Mounting 8 32UNC 2B 4PL Nearside 3PL Far side M550292 01 Rev C 2 9...

Page 28: ...Installation Sorensen SFA Series Slide Mounting 8 32UNC 2B 6PL Nearside 7PL Far side Figure 2 2 SFA Series Outline Drawing 6U Models 20kW to 30kW 2 10 M550292 01 Rev C...

Page 29: ...nt Panel Controls and Indicators 3U model shown 1 Voltage Display 3 digit green LED display indicates the DC output voltage of the supply 2 Current Display 3 digit green LED display indicates the DC o...

Page 30: ...urned off 6 MODULE FAULT Indicator Yellow LED indicates an internal fault such as bias supply thermal or converter failure 7 SET RESET OVERCURRENT PROTECTION Pushbutton Depress button to view OCP leve...

Page 31: ...Input connector for load voltage sensing to provide a more accurate voltage measurement by compensating for line drops in the load cables see Section 3 4 13 PARALLEL IN Connector Allows master slave c...

Page 32: ...TE Take care not to over torque the outer nut Should the cone nut become loose or jammed with the outer locking nut re torque the cone nut with a 1 2 inch wrench to approximately 15 LB in 1 69 N m Fig...

Page 33: ...e output terminal floats the power supply s internal control circuitry common level to the same potential as the negative output terminal On a standard non isolated supply the common of the analog con...

Page 34: ...mmeter readings should track within the accuracies of the meter and the front panel display 4 Note the reading on the voltage display This is the compliance voltage of the load at the present output c...

Page 35: ...fully counterclockwise then press and hold the Set Reset pushbutton until the OCP light turns off 10 Reset the OCP setting as appropriate for your application per steps 4 and 5 above If you do not cho...

Page 36: ...for on off control A positive 12 to 240 VAC or 6 to 120 VDC voltage will turn on the supply This input control is optically isolated from the power supply circuit up to 500 VDC See Section 3 5 2 ISO R...

Page 37: ...se J3 recommended only for backward compatibility in existing systems 14 ISO TTL CMOS Zin 2 2k Isolated TTL CMOS on off control A high state TTL CMOS voltage turns on the power supply and a low state...

Page 38: ...ing return Used with J1 10 J1 16 or J1 22 for remote current programming and must be referenced to or within 3V of the circuit common Table 3 1 ANALOG CONTROL Connector J1 Designations and Functions C...

Page 39: ...e before break contacts are recommended Note that if an external resistance is used for remote programming the current programming return IP RTN terminal J1 23 must be connected directly to or within...

Page 40: ...urate voltage readback In applications where the load is located some distance from the power supply or the voltage drop of the power output leads significantly interferes with load regulation remote...

Page 41: ...Sorensen SFA Series Operation Figure 3 7 Remote Sensing Operation at the Load M550292 01 Rev C 3 13...

Page 42: ...3 8 for connection requirements 1 25 14 6 ON OFF 5 Figure 3 8 Remote On Off Control by Contact Closure 2 Remote on off control may be accomplished by an external 12 to 240 VAC or 6 to 120 VDC or TTL C...

Page 43: ...ur A remote DC voltage source can be connected externally between terminals J1 6 COM and J1 3 REM OC SET to set the output overcurrent trip level A 0 5 5 VDC signal equals 0 110 of rated output voltag...

Page 44: ...or voltage than is available from a single power supply To meet the requirements for greater output voltage or current two supplies may be connected in series or up to five connected in parallel 3 8 1...

Page 45: ...ter readings Notes Under no condition should the negative output terminal of any power supply exceed 300V to Earth ground This is limited by the creepage clearance distances internal to the constructi...

Page 46: ...Operation Sorensen SFA Series This page intentionally left blank 3 18 M550292 01 Rev C...

Page 47: ...to avoid both the input terminals and while the supply is enabled the output terminals Only authorized personnel should perform this procedure Due to the importance of accurate readings to performance...

Page 48: ...voltage source as shown in Figure 3 6 in Section 3 3 Remote Current Programming 2 Attach a precision meter across the shunt Kelvin terminals 3 Attach a precision meter in parallel with the voltage pr...

Page 49: ...Turn the front panel Current knob fully counterclockwise 2 Connect the power supply to a precision current shunt see Figure 4 1 Section 4 1 2 Preparation 3 Set the SFA series unit to operate in remote...

Page 50: ...n 7 Set the programming voltage to 5 0V 1mV 8 Verify that the unit is set to 100 0 8 of full scale output current If necessary adjust R33 for 100 of full scale current on the shunt 9 Set the programmi...

Page 51: ...LIBRATION ADJUSTMENT R71 IPRES 1mA Adjust R87 Voltage Meter Adjust R47 Zero Current Adjust R33 100 Current Adjust R87 Current Meter Adjust R86 Voltage Meter Adjust ISOLATED ANALOG OPTION CALIBRATION A...

Page 52: ...Verification and Calibration Sorensen SFA Series This page intentionally left blank 4 6 M550292 01 Rev C...

Page 53: ...be safety grounded to the chassis 5 2 PREVENTIVE MAINTENANCE No routine maintenance on the SFA Series is required aside from periodic cleaning of the unit when needed Once a unit is removed from servi...

Page 54: ...lean with cloth moistened with soapy water External electrical wiring Broken burned or pinched wire frayed worn or missing insulation Repair or replace defective wires External solder connections Corr...

Page 55: ...ircuits and or terminals to be touched must be safety grounded to the chassis CAUTION To reduce the risk of fire or electrical shock replace fuses only with the same type and rating Internal fuses are...

Page 56: ...Maintenance Sorensen SFA Series This page intentionally left blank 5 4 M550292 01 Rev C...

Page 57: ...3 Preventive 5 1 Master Slave Operation 3 15 Mounting Hardware 2 3 O Operation Current Mode 3 4 Local 3 4 Master Slave 3 15 Parallel 3 15 Remote Current Programming 3 10 Remote Output On Off Control...

Page 58: ...Specifications 1 1 Current 1 3 Electrical Characteristics 1 2 Environmental Characteristics 1 1 Noise 1 3 Physical Characteristics 1 4 Ripple 1 3 Voltage 1 3 V Ventilation 2 2 Verification and Calibr...

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