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Ametek Sorensen SGA Series DC, Operation Manual

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Operation 

Sorensen SGA Series 

3-26 

M550129-01 Rev AF 

 

 

CAUTION!

 

If the power supply is operated with load power lines 
disconnected and remote sense lines connected, internal 
power supply damage might occur, since output load current 
could flow through the remote sense terminals.

 

 

To use remote voltage sensing, connect the power supply as described in  
Figure 3-23 for  the 10V-800V models, and in Figure 3-24 for the 1000V 
model.  A shielded, twisted-pair cable is recommended to avoid potential 
noise interference.  

3

1 2

Power
Supply
Output

J3-1: Sense (+)

J3-2: Sense (-), 10V-600V Only

Load

J3

+

-

J3-3: Sense (-), 800V Only

 

Figure 3-23.  Remote Sense Connection at the Load, 10V-800V Models 

Summary of Contents for Sorensen SGA Series DC

Page 1: ...M550129 01 Rev AF www programmablepower com SGA Series DC Power Supplies Operation Manual ...

Page 2: ......

Page 3: ...tive owners and are used herein for identification purposes only Notice of Copyright SGA Series DC Power Supplies Operation Manual 2014 AMETEK Programmable Power Inc All rights reserved Exclusion for Documentation UNLESS SPECIFICALLY AGREED TO IN WRITING AMETEK PROGRAMMABLE POWER INC AMETEK a MAKES NO WARRANTY AS TO THE ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROV...

Page 4: ...d contrary to the instructions of AMETEK is opened modified or disassembled in any way without AMETEK s consent or is used in combination with items articles or materials not authorized by AMETEK The Buyer may not assert any claim that the Products are not in conformity with any warranty until the Buyer has made all payments to AMETEK provided for in the Purchase Order Agreement Product Return Pro...

Page 5: ...r ground lines including those to application and maintenance equipment must be grounded properly for both personnel and equipment safety Always ensure that facility AC mains input is de energized prior to connecting or disconnecting any cable In normal operation from the front panel the operator does not have access to hazardous voltages within the chassis However depending on the application con...

Page 6: ...Allow to cool before servicing DO NOT TOUCH Touching some parts of the instrument without protection or proper tools could result in damage to the part s and or the instrument TECHNICIAN SYMBOL All operations marked with this symbol are to be performed by qualified maintenance personnel only ELECTRICAL GROUND This symbol inside the instrument marks the central safety grounding point for the instru...

Page 7: ...nterference when the 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 harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to ...

Page 8: ...directive European Council directive 2004 108 EC generally referred to as the EMC directive and to the requirements of the Low Voltage directive European Council directive 2006 95 EC 93 68 EEC dated 22 July 1993 In addition these models have been found compliant with FCC 47 CFR Part 15 Subpart B107 e Class A 109 g Class A Since the Low Voltage Directive is to ensure the safety of the equipment ope...

Page 9: ... 2 3 2 3 2 K550212 01 ASSEMBLY STEPS OPTION KIT for 3U models 2 4 2 3 3 K550213 01 ASSEMBLY STEPS OPTION KIT for 6U models 2 6 2 3 4 Chassis Removal from Rack 2 7 2 4 Input Output Connections 2 8 2 5 Wire selection 2 11 2 5 1 Wire Size 2 11 2 6 Load Considerations 2 14 2 6 1 Inductive and STORED ENERGY Loads 2 14 2 7 Outline and Installation Drawings 2 15 SECTION 3 OPERATION 3 1 3 1 Introduction 3...

Page 10: ...ON OFF Control by External Source 3 23 3 8 3 Remote Shutdown S D 3 24 3 9 Remote Sensing 3 25 3 10 Floating and Polarized Output 3 28 3 11 Parallel and Series Operation 3 29 3 11 1 Parallel Operation 3 29 3 11 2 Series Operation 3 31 SECTION 4 CALIBRATION AND VERIFICATION 4 1 4 1 Introduction 4 1 4 1 1 Calibration and Verification Cycle 4 1 4 1 2 Preparation 4 1 4 2 Calibration and Verification Pr...

Page 11: ...oding 1 2 Figure 2 1 Rack Mount Assembly for 3U Models 2 4 Figure 2 2 Rack Mount Assembly for 6U Models 2 6 Figure 2 3 Diode Connection 2 14 Figure 2 4 Installation Drawing 3U Models 10V 30V 2 16 Figure 2 5 Installation Drawing 3U Models 40V 600V 2 17 Figure 2 6 Installation Drawing 3U Models 800V 1000V 2 18 Figure 2 7 Installation Drawing 6U Models 20 kW to 30 kW 2 19 Figure 2 8 Rear Panel Standa...

Page 12: ...g Control Connector J1 Pin Out 3 15 Figure 3 13 Remote Current Programming Using Resistance 3 18 Figure 3 14 Remote Current Programming Using 0 5 VDC or 0 10 VDC Source 3 19 Figure 3 15 Remote Voltage Programming Using Resistance 3 20 Figure 3 16 Remote Voltage Programming Using 0 5 VDC or 0 10 VDC Source 3 21 Figure 3 17 Remote Overvoltage Programming Using DC Source 3 22 Figure 3 18 Remote Outpu...

Page 13: ...od performance characteristics such as accuracy regulation and ripple noise These power supplies are constant current constant voltage supplies with an automatic crossover feature A variety of user interfaces are available ranging from manual front panel control and standard non isolated remote analog control to optional GPIB Ethernet or isolated remote analog control Refer to Figure 1 1 for decod...

Page 14: ... Options 1A 1D 2C Combined Options 1A 1E SGA Only 2G Combined Options 1C 1D 2H Combined Options 1C 1E SGA Only 2J Combined Options 1D 1E SGA Only 3C Combined Options 1A 1D 1E SGA Only 3G Combined Options 1C 1D 1E SGA Only Process Options AA No option AB Certificate of Calibration includes test data Modifications AJ Front panel dust filter 3U models only CV 400 Hz AC input at 208 VAC for 6U units o...

Page 15: ...rating at full rated output power derate 10 of full power for every 1 000 ft 3 048 m higher non operating to 40 000 ft 12 192m Agency Approvals CE Compliant Certified to UL CSA 61010 and IEC EN 61010 1 by a NRTL LVD Categories Installation Category II Pollution Degree 2 Class II Equipment for Indoor Use Only EMC Directive EN 61326 1998 Semi F47 Compliant 1 2 2 ELECTRICAL CHARACTERISTICS Note Outpu...

Page 16: ...ues refer to Section 1 2 3 Load Regulation specified for 100 rated load change at nominal AC input voltage Voltage 0 05 maximum of rated output voltage for 10V 30V models 0 02 maximum of rated output voltage for 40V 1000V models Current 0 1 maximum of rated output current Line Regulation specified for 10 change of nominal AC line voltage at constant load Voltage 0 05 maximum of rated output voltag...

Page 17: ...ted Line Drop 1 V maximum per line for 10V 20V models 1 5 V maximum per line for 30V model 5 maximum of rated output voltage per line for models 40V to less than 160V 2 maximum of rated output voltage per line for models greater than or equal to 160V greater level of line drop is allowed but output voltage regulation specifications no longer apply Line Drop Effect on Output Voltage Rated output vo...

Page 18: ...e latched requiring reset to resume normal operation Isolation of optional Isolated Analog Interface J1 to output negative terminal 1000 V PK maximum Isolated Analog Interface J1 signals are galvanically isolated from negative output terminal operation of Isolated Analog Interface signals should be at SELV safety voltage conditions to chassis ground Reference of standard Non Isolated Analog Interf...

Page 19: ...250 0 300 20 100 0 160 0 31 0 63 0 94 0 125 0 156 0 188 25 150 0 200 0 25 0 50 0 75 0 100 0 125 0 150 25 175 0 250 0 20 0 40 0 60 0 80 0 100 0 120 30 200 0 330 0 15 0 30 0 45 0 61 0 76 0 91 30 200 0 400 0 12 0 25 0 38 0 50 0 63A 0 75 40 300 0 500 0 10 0 20 0 30 0 40 0 50 0 60 50 350 0 600 0 8 0 17 0 25 0 33 0 42 0 50 60 350 0 800 0 6 2 0 12 5 0 18 7 0 25 0 31 2 0 37 5 80 500 0 1000 0 5 0 10 0 15 0...

Page 20: ...refer to installation drawings for chassis dimensions 28 09 in 71 35 cm 25 46 in 64 67 cm 27 18 in 69 04 cm Height 5 25 in 13 34 cm 5 25 in 13 34 cm 10 5 in 26 67 cm Weight nominal 65 lb 29 kg 4 kW 10V 15V 65 lb 29 kg 5 kW 20V 30V 85 lb 39 kg 8 kW 10V 15V 85 lb 39 kg 10 kW 20V 30V 110 lb 50 kg 12 kW 10V 15V 110 lb 50 kg 15 kW 20V 30V 60 lb 27 kg 5 kW 75 lb 34 kg 10 kW 90 lb 41 kg 15 kW 140 lb 63 k...

Page 21: ...mer Service at 858 458 0223 local or 1 800 733 5427 toll free 2 2 CONTENTS OF SHIPMENT Depending on the model configuration and options available for your SGA Series power supply the ship kit may include additional parts and accessories Minimum items included in the ship kit AMETEK manuals CD ROM P N M550008 01 containing the SGA Series DC Power Supplies Operation Manual this manual P N M550129 01...

Page 22: ... for 4 kW to 15 kW models K550213 01 6U Rack Slides for 20 kW to 30 kW models 5550568 01 Front panel dust filter field installation kit 3U models only 5551082 01 Optional AC input cover kit 3U models only 2 3 LOCATION AND MOUNTING Refer to Sections 2 7 for dimensional and installation drawings WARNING This unit is intended for installation in a protected environment Exposure to conductive contamin...

Page 23: ...A 310 If additional instrumentation is mounted in the rack no additional clearance is required above or below the SGA Series units Support the SGA Series unit using appropriate L brackets or rack mount slides suggested slide kits are listed as follows Rack Mount Slide Kit Option 3U models 4 15 kW AMETEK part number K550212 01 6U models 20 30 kW AMETEK part number K550213 01 ...

Page 24: ...Installation Sorensen SGA Series 2 4 M550129 01 Rev AF 2 3 2 K550212 01 ASSEMBLY STEPS OPTION KIT FOR 3U MODELS Figure 2 1 Rack Mount Assembly for 3U Models ...

Page 25: ...nary slide sections 1A with the hardware provided by the slide supplier as shown in Note 3 Ensure that stopper orientation of slide sections 1B is as shown in Note 2 Adjust the location of the mounting brackets as required for the particular type of cabinet vertical rails utilized 3 Mount the stationary slide sections 1A with brackets already installed into the cabinet using appropriate hardware e...

Page 26: ...Installation Sorensen SGA Series 2 6 M550129 01 Rev AF 2 3 3 K550213 01 ASSEMBLY STEPS OPTION KIT FOR 6U MODELS Figure 2 2 Rack Mount Assembly for 6U Models ...

Page 27: ...e sections 1A 5 Secure the front panel of the power supply chassis to the cabinet rack rails using the screws provided in the ship kit 2 3 4 CHASSIS REMOVAL FROM RACK WARNING A minimum two person lift is required for the 3U SGA Series power supply which weighs up to 110 lb 50 kg depending on the model A minimum three person lift is required for the 6U SGA Series unit which weighs up to 170 lb 77 k...

Page 28: ...that it is readily accessible to the user WARNING A properly sized input overcurrent protection device must be installed at the AC mains input either a circuit breaker or fuse having a rating of 25 over the maximum AC input line currents listed in Table 2 1 WARNING To prevent an electrical shock hazard a safety ground wire must be connected from the safety ground stud on the rear panel to the AC m...

Page 29: ...rrent A RMS Voltage Model AC Input Option Code Input Voltage VAC 5 kW 10 kW 15 kW 20 kW 25 kW 30 kW 40V 800V C 208 230 24 47 71 95 118 142 D 380 400 13 27 40 54 67 81 E 440 480 12 24 36 49 61 73 AC input current varies depending on actual power factor refer to specifications section on power factor Table 2 2 Maximum AC Current Ratings Non PFC Models Connector Function Connection L1 AC L2 AC L3 AC ...

Page 30: ...ion should be stripped to 5 8 maximum For more information on the AC input connector refer to the manufacturer Phoenix Contact part number HDFKV 16 at their website www phoenixcontact com Power Supply Type Connection Description 4 kW to 15 kW 10V 30V models Bus bars with two holes for 1 2 bolts on each terminal POS and NEG 5 kW to 15 kW 40V 1000V models 40V 600V models bus bars with single holes f...

Page 31: ...ections Table 2 8 gives minimum recommended wire size these recommendations are for copper wire only This table is derived from the National Electrical Code and is for reference only Local laws and conditions may have different requirements refer to the National Electrical Code for guidelines Size Temperature Rating of Copper Conductor AWG 60 C 75 C 85 C 90 C Types RUW T TW UF Types FEPW RHW RH RU...

Page 32: ...uge and insulation properties are recommended for power source applications Be careful when using published commercial utility wiring codes These codes are designed for the internal wiring of homes and buildings and accommodate the safety factors of wiring loss heat breakdown insulation aging etc However these codes consider that up to 5 voltage drop is acceptable Such a loss directly detracts fro...

Page 33: ...t One Way Voltage Drop 100 Ft Column 2 x Column 3 14 20 0 253 5 06 12 25 0 156 3 90 10 30 0 999 3 00 8 40 0 063 2 52 6 55 0 040 2 20 4 70 0 025 1 75 3 85 0 020 1 70 2 95 0 016 1 52 1 110 0 012 1 32 0 125 0 010 1 25 00 145 0 008 1 16 000 165 0 006 0 99 0000 195 0 005 0 98 Table 2 9 Wire Resistance and Voltage Drop 20 C ...

Page 34: ... anode to return Where positive load transients such as back EMF from a motor might occur or stored energy is present such as a battery a second blocking diode in series with the output is recommended to protect the power supply BLOCKING AND ANTI PARALLEL DIODES Ensure that the chosen components are suitably rated for the particular inductance and energy to be dissipated The Peak Reverse Voltage r...

Page 35: ... 2 4 through Figure 2 7 show the outlines and overall dimensions for installation of the 3U and 6U models of the SGA Series power supplies Figure 2 8 through Figure 2 16 show locations of rear panel connectors Figure 2 17 shows protective covers for the AC input and DC output of the 3U 10V 30V models ...

Page 36: ...Installation Sorensen SGA Series 2 16 M550129 01 Rev AF Figure 2 4 Installation Drawing 3U Models 10V 30V ...

Page 37: ...Sorensen SGA Series Installation M550129 01 Rev AF 2 17 Figure 2 5 Installation Drawing 3U Models 40V 600V ...

Page 38: ...Installation Sorensen SGA Series 2 18 M550129 01 Rev AF Figure 2 6 Installation Drawing 3U Models 800V 1000V ...

Page 39: ...Sorensen SGA Series Installation M550129 01 Rev AF 2 19 Figure 2 7 Installation Drawing 6U Models 20 kW to 30 kW ...

Page 40: ...Installation Sorensen SGA Series 2 20 M550129 01 Rev AF Figure 2 8 Rear Panel Standard 3U Models 10V 30V ...

Page 41: ...Sorensen SGA Series Installation M550129 01 Rev AF 2 21 Figure 2 9 Rear Panel GPIB Option 3U Models 10V 30V ...

Page 42: ...Installation Sorensen SGA Series 2 22 M550129 01 Rev AF Figure 2 10 Rear Panel Ethernet Option 3U Models 10V 30V ...

Page 43: ...Sorensen SGA Series Installation M550129 01 Rev AF 2 23 Figure 2 11 Rear Panel Standard 3U Models 40V 600V ...

Page 44: ...Installation Sorensen SGA Series 2 24 M550129 01 Rev AF Figure 2 12 Rear Panel GPIB Option 3U Models 40V 600V ...

Page 45: ...Sorensen SGA Series Installation M550129 01 Rev AF 2 25 Figure 2 13 Rear Panel Ethernet Option 3U Models 800V and 1000V ...

Page 46: ...Installation Sorensen SGA Series 2 26 M550129 01 Rev AF Figure 2 14 Rear Panel Standard 6U Models 20kW 30kW ...

Page 47: ...Sorensen SGA Series Installation M550129 01 Rev AF 2 27 Figure 2 15 Rear Panel GPIB Option 6U Models 20kW 30kW ...

Page 48: ...Installation Sorensen SGA Series 2 28 M550129 01 Rev AF Figure 2 16 Rear Panel Ethernet Option 6U Models 20kW 30kW ...

Page 49: ...Sorensen SGA Series Installation M550129 01 Rev AF 2 29 Figure 2 17 Instructions for Assembly of AC and DC Covers ...

Page 50: ...Installation Sorensen SGA Series 2 30 M550129 01 Rev AF This page intentionally left blank ...

Page 51: ...ut measurements This section provides detailed information on the controls and indicators and the operation of the SGA Series 3 1 1 FRONT REAR PANELS Figure 3 1 shows the front panel of the 3U models the 6U models have the same controls and indicators Figure 3 2 through Figure 3 10 show the rear panels of the 3U and 6U models with their connectors and controls Figure 3 1 Front Panel Controls and I...

Page 52: ...ks not shown see Section 3 2 5 Current Display 3 digit green LED display for the DC output current 6 Set Reset Button Press to display Overvoltage Protection level on the Voltage display Press and hold for 7 s to reset OVP condition 7 Adjust Potentiometer Adjusts the overvoltage trip level 8 Module Fault LED Lights yellow to indicate an internal fault in a power module such as overtemperature unde...

Page 53: ...s Operation M550129 01 Rev AF 3 3 Figure 3 2 Rear Panel Interface Standard 3U Models 10V 30V Figure 3 3 Rear Panel Interface GPIB Option 3U Models 10V 30V Figure 3 4 Rear Panel Interface Ethernet Option 3U Models 10V 30V ...

Page 54: ...Series 3 4 M550129 01 Rev AF Figure 3 5 Rear Panel Interface Standard 3U Models 40V 600V Figure 3 6 Rear Panel Interface GPIB Option 3U Models 40V 600V Figure 3 7 Rear Panel Interface Ethernet Option 3U Models 800V and 1000V ...

Page 55: ...eration M550129 01 Rev AF 3 5 Figure 3 8 Rear Panel Interface Standard 6U Models 20kW 30kW Figure 3 9 Rear Panel Interface GPIB Option 6U Models 20kW 30kW Figure 3 10 Rear Panel Interface Ethernet Option 6U Models 20kW 30kW ...

Page 56: ...slave unit for configuring parallel operation of units when connected to Parallel Out connector of master unit see Section 3 11 6 ANALOG CONTROL Remote Analog Interface connector J1 for programming and monitoring signals of output status indication and remote shutdown signals see Table 3 5 for individual pin descriptions 7 SENSE Connector Input connector J3 for remote sensing of voltage at the loa...

Page 57: ...Remote Analog Interface connector J1 for programming and monitoring signals of output status indication and remote shutdown signals see Table 3 5 for individual pin descriptions 7 SENSE Connector Input connector J3 for remote sensing of voltage at the load to compensate for line drop in load cables see Section 3 9 7a HV SENSE Connector Input connector J3 for remote sensing of voltage at the load t...

Page 58: ...ctor Input connector J3 for remote sensing of voltage at the load to compensate for line drop in load cables see Section 3 9 7a HV SENSE Connector Input connector J3 for remote sensing of voltage at the load to compensate for line drop in load cables 800V and 1000V models only see Section 3 9 8 RS 232 Connector RS 232 connector for remote digital control 9 Configuration Switch Four position DIP sw...

Page 59: ... apply Loosen the shaft by rotating the outer locking nut counter clockwise with a 7 16 wrench Adjust the shaft with a flat screwdriver to the desired output level Tighten the outer locking nut rotating clockwise to approximately 5 in lb 0 56 N m Note 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 w...

Page 60: ...l be energized at the settings of voltage and current 1 Prior to turning the unit on rotate the voltage and current potentiometers fully counterclockwise minimum output if output settings are not certain and load would not tolerate full rated output voltage of the power supply 2 Adjust the voltage and current from the minimum setting to the desired output after turning ON the unit 3 3 1 INITIAL SE...

Page 61: ... across the rear panel positive and negative output terminals observing the correct polarity Make sure the DVM is in the DC voltage mode and the range is adequate to handle the full scale voltage of the power supply 4 Rotate the Current control knob about 1 2 turn clockwise this adjusts the current setting to a value above zero to ensure ability to supply current 5 Switch the power supply on 6 Slo...

Page 62: ...ith the full scale rated output current of the unit Note It could be verified that the supply could source rated output current without measuring the current with an ammeter but using only the front panel meter and shorting the output terminals together 3 Rotate the Voltage control knob about 1 2 turn clockwise this adjusts the voltage setting to a value above zero to ensure ability to supply volt...

Page 63: ... maximum rated output voltage of the supply 5 While holding down the Set Reset button use a small flat blade adjustment screwdriver to adjust the OVP setting by turning the multi turn recessed adjustment potentiometer counterclockwise As the potentiometer is adjusted the reading on the voltage display should decrease increase if adjusted in a clockwise direction 6 Set the OVP to about 80 90 of the...

Page 64: ...de with respect to external programming control equipment to ensure that ground return loops are not formed where output load current might flow through the external connections to the J1 circuits J1 6 and J1 24 possibly causing internal damage to the power supply Refer to Table 3 5 REMOTE ISOLATED ANALOG INTERFACE CONTROL OPTION The option Remote Isolated Analog Interface control uses the same An...

Page 65: ...1 21 also must be externally connected to Pin J1 6 COM signal return when voltage programming is utilized Circuit is electrically connected to the output power negative terminal 5 ON OFF Zin 10 k pull up to 15 VDC Remote control input for output on off switch relay contact closure or direct short circuit from this terminal to Pin J1 6 COM signal return will enable turn on the output of the supply ...

Page 66: ...ltage source 0 10 VDC 0 100 of full scale output voltage Do not exceed an input of 25 VDC Signal return is Pin J1 4 or Pin J1 20 VP RTN Circuit is electrically connected to the output power negative terminal See Section 3 6 16 IP 10V Zin 20 k Remote control input for current programming using a voltage source 0 10 VDC 0 100 of full scale output current Do not exceed an input of 25 VDC Signal retur...

Page 67: ...f full scale output current Circuit is electrically connected to the output power negative terminal See Section 3 5 23 IP RTN Zin 10 k Current programming signal return which is to be used with Pins J1 10 J1 16 or J1 22 also must be externally connected to Pin J1 6 COM signal return when current programming is utilized Circuit is electrically connected to the output power negative terminal 24 COM ...

Page 68: ...is 100 rated output current 5 kΩ with input at Pin J1 22 IP RES and return to Pin J1 23 IP RTN An internal current source factory set at 1 mA from Pin J1 22 IP RES is utilized to drive the resistance This produces a transfer function for output current as follows Iout R 100 rated output current 5 kΩ with R in ohms If multiple switches or relays are used to select resistors to program different cur...

Page 69: ...put current are 100 rated output current 5 VDC or 100 rated output current 10 VDC with respect to Pin J1 23 IP RTN This produces transfer functions for output current as follows Iout Vdc 100 rated output current 5 VDC with Vdc in volts or Iout Vdc 100 rated output current 10 VDC with Vdc in volts Note The return Pin J1 23 IP RTN must be referenced directly to or within 3 V of the power supply comm...

Page 70: ...istance programming coefficient for output voltage is 100 rated output voltage 5 kΩ with input at Pin J1 21 VP RES and return to Pin J1 20 VP RTN An internal current source factory set at 1 mA from Pin J1 21 VP RES is utilized to drive the resistance This produces a transfer function for output voltage as follows Vout R 100 rated output voltage 5 kΩ with R in ohms Note If an external resistance is...

Page 71: ...e are 100 rated output voltage 5 VDC or 100 rated output voltage 10 VDC from the respective inputs with return to Pin J1 20 VP RTN This produces transfer functions for output voltage as follows Vout Vdc 100 rated output voltage 5 VDC with Vdc in volts or Vout Vdc 100 rated output voltage 10 VDC with Vdc in volts Note The return Pin J1 20 VP RTN must be referenced directly to or within 3 V of the c...

Page 72: ...d externally between Pins J1 3 REM OV SET and J1 6 COM to set the Overvoltage Protection OVP trip level A 0 25 5 5 VDC signal equals 5 110 of rated output voltage See Figure 3 17 for connection requirements The Remote OVP setpoint will always take precedence over the front panel local trip level even if the front panel local OVP trip level is set to a lower value Note To reset an OVP apply a 10 5 ...

Page 73: ...he output See Figure 3 18 for connection requirements 1 25 14 6 ON OFF 5 Figure 3 18 Remote Output ON OFF Control by Contact Closure 3 8 2 REMOTE OUTPUT ON OFF CONTROL BY EXTERNAL SOURCE Application of AC DC voltage between Pins J1 1 and J1 2 or TTL CMOS voltage between Pins J1 14 and J1 2 will turn on the power supply this interface is opto isolated from circuit common Pins J1 6 and J1 24 See Fig...

Page 74: ...ource 3 8 3 REMOTE SHUTDOWN S D A remote 12 VDC voltage can be connected externally between Pin J1 18 S D Fault and Pin J1 24 COM to disable i e shut down the output of the power supply see Figure 3 21 A low level or opening the 12 VDC signal will allow the unit to revert to normal operation Figure 3 21 Remote Shutdown Using DC Voltage Source ...

Page 75: ...ecifications are valid only with remote sense connected Disconnecting the remote sense leads will introduce an error with the output voltage increasing The error occurs because an additional resistance PTC local resistor network in Figure 3 22 is present in the circuit of the resistor divider for voltage sensing to provide the default local sensing of the output voltage at the output terminals Whe...

Page 76: ...could flow through the remote sense terminals To use remote voltage sensing connect the power supply as described in Figure 3 23 for the 10V 800V models and in Figure 3 24 for the 1000V model A shielded twisted pair cable is recommended to avoid potential noise interference 3 1 2 Power Supply Output J3 1 Sense J3 2 Sense 10V 600V Only Load J3 J3 3 Sense 800V Only Figure 3 23 Remote Sense Connectio...

Page 77: ...Sorensen SGA Series Operation M550129 01 Rev AF 3 27 1 2 4 3 Power Supply Output J3 1 Sense J3 2 Not Used J3 3 Not Used J3 4 Sense Load J3 Figure 3 24 Remote Sense Connection at the Load 1000V Model ...

Page 78: ...terminal may be floated up to 300V PK maximum with respect to chassis ground Exceeding the limit will be detected as a fault by a protective supervisory monitor and shutdown of the output will be executed this condition will be latched requiring reset to resume normal operation CAUTION Floating the negative output terminal subjects the internal control circuitry of the power supply to the same pot...

Page 79: ...e to connect the PAR OUT connector to the PAR IN connector of the third power supply Slave 2 Continue these interconnections up to a maximum of 5 power supplies 4 Connect the Positive output terminals of all the power supplies and the Load 5 Connect the Negative output terminals of all the power supplies and the load 6 Confirm that there are no shorts between the Positive and Negative output termi...

Page 80: ...Operation Sorensen SGA Series 3 30 M550129 01 Rev AF Figure 3 25 Parallel Connection and Remote Sense ...

Page 81: ...ower supply exceed 300 V to chassis earth ground This is limited by the isolation and creepage clearance distances internal to the power supply construction If a higher output voltage range is required contact the factory for availability Note The maximum allowable current for a series string of power supplies is the rated output current of a single supply of the string Remote sensing at the load ...

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Page 83: ...s exist at the rear of the supply Care must be taken to avoid contact with the AC input and DC output terminals Only authorized personnel should perform this procedure Only technically trained personnel who understand the operation of the power supply and are capable taking accurate readings should perform calibration The calibration procedures require two digital multimeters and a precision shunt...

Page 84: ...p cover that allow adjustment of the calibration potentiometers without removing the top cover However if the Ethernet option is installed some of the potentiometers are covered by a ribbon cable To adjust those potentiometers the cover should be partially removed and slid towards the rear of the chassis just enough to expose the location of the potentiometers but with the cover still on top of th...

Page 85: ...to enable the output see Section 3 1 13 1 1 7 Set the current programming source to 5 0 V 1 mV 8 Verify that the unit produces 100 0 8 of rated output current If necessary adjust R69 for 100 of rated output current through the shunt 9 Set the current programming source for 0 5 V 1 mV 10 Verify that the unit produces 10 0 8 of rated output current If necessary adjust R55 for 10 of rated output curr...

Page 86: ...ol 4 2 3 RESISTIVE CONTROL PROGRAMMING CURRENT SOURCES Standard Non Isolated Analog Interface Control 1 Disconnect the AC mains power to the unit 2 Connect a precision current shunt across the output of the power supply and attach a precision meter across the shunt Kelvin terminals see Section 4 1 2 3 Setup the SGA Series unit to operate with remote current programming using resistance by connecti...

Page 87: ...output capacitive charge to safe levels before connecting or removing output wiring 4 3 1 CONSTANT CURRENT MODE 1 Disconnect AC mains power to the unit Setup the SGA Series unit to operate with remote current programming using an external 0 5 VDC voltage source as shown in Figure 3 14 in Section 3 5 2 Ensure that Pins J1 5 and J1 6 are jumpered to enable the output 2 Connect a precision current sh...

Page 88: ...ramming using an external 0 5 VDC voltage source as shown in Figure 3 16 in Section 3 6 2 Ensure that Pins J1 5 and J1 6 are jumpered to enable the output 4 Program the output current with the front panel control or remote interface to 100 of rated output current 5 Apply AC power turn the unit on and press Output On button to enable the output see Section 3 1 1 6 Set the voltage programming source...

Page 89: ...ments R35 VPRES 1 mA Adjust R33 IPRES 1 mA Adjust R74 Full Scale Voltage Adjust R90 Zero Voltage Adjust R69 Full Scale Current Adjust R55 Zero Current Adjust Isolated Analog Option Calibration Adjustments R39 Full Scale Voltage Adjust R35 Zero Voltage Adjust R33 Full Scale Current Adjust R47 Zero Current Adjust Factory Use Only R37 R45 R46 R54 R71 R73 R82 R86 R104 Top Front of Unit ...

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Page 91: ...inutes after AC input power has been removed with an external disconnect switch Do not touch any circuits and or terminals that are energized 5 2 PREVENTIVE MAINTENANCE WARNING The OFF position of the front panel power switch does not remove AC input from internal circuits or input terminal blocks Disconnect external AC input before servicing unit CAUTION For safe and continued operation of the SG...

Page 92: ...luding the front panel grill Clean the exterior with a mild solution of detergent and water Apply the solution onto a soft cloth not directly to the surface of the unit To prevent damage to materials do not use aromatic hydrocarbons or chlorinated solvents for cleaning Check external connections for integrity of insulation loose contacts and proper torque If there is any evidence of short circuits...

Page 93: ...open fuse might indicate that a circuit component has been damaged Contact the factory for further assistance CAUTION To reduce the risk of fire or electrical shock replace fuses only with the same type and rating Assembly Reference Rating Manufacturer Part No Bias Supply PWA F1 F2 F3 5 A 600 V Littelfuse KLK 5 Power Module Converter Control PWA F1 F2 F3 30 A 600 V Littelfuse KLK 30 Table 4 1 Fuse...

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Page 95: ...de 3 11 Calibration and Verification 4 3 Operation 3 11 Contents of Shipment 2 1 Controls and Indicators 3 1 Analog Control J1 3 14 Front Panel ON OFF Switch 3 2 OVP Adjust Potentiometer 3 2 OVP Set Reset Button 3 2 E Electrical Characteristics 1 3 Environmental Characteristics 1 3 F Flexible Cables 2 11 Floating Negative Terminal 2 8 Front Panel Drawing 3 1 Fuses 5 3 I Initial Setup 3 10 Input Ov...

Page 96: ...otective Covers Assembly 2 30 4 8 R Rack Mounting 2 3 Rear Panel Drawings 2 15 Remote Current Programming 3 18 Resistance Control 3 18 Voltage Source Control 3 19 Remote Isolated Analog Interface Control 3 14 Remote Output On Off Control 3 23 Contact Closure Control 3 23 External Source Control 3 23 Shutdown S D 3 24 Remote Overvoltage Protection Programming 3 22 Remote Sensing 1 5 3 25 Error with...

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