SFA Series DC Power Supplies
Contents
1. AT oft UA NM NM HOS ooo WW j ZS 00 Slide Mounting HO EE Aa God EE EE EE EES ERER DD O i 8 32UNC 2B Beeeal EE APL Nearside E ic P Ca 3PL Far side F 7 HE 9 Lohay e HHH tun chu Hep pga alanin E ho E 25 00 ke Uri Kr GIRA HOME Ok Ott rn Urn On FRE SE Se aa HE OE o ew s nn OR es e J iS HHH De ere ae E e e i i OE 120 1 78 l J i SFA 60 250 me o a 5 22 CEET Ee DEE GEO EE Ee ee ORGAN OHOOO OMOGORC ROMO GO RM STENSEN JH 9505 SOROS NANSEN OBC IROGO RONG BROR ORO RRO ROROBORORSRORG ee ee Ee Ee EE EE EE OR SR OS ORO HORO OROORO OR ORO ORO OROROORO RORO OORS ORON OROROORO ORSRORERGRORORSLORORERORORO KOROROKRORORORDRORDROKOROROMDRORDRORDRORORORO Figure 2 1 SFA Series Outline Drawing 3U Models 5kW to 15kW M550292 01 Rev G 2 9 Installation Sorensen SFA Ser2. 10 W 12 43 44 45 7 18 RIES REES SC l z H ES 0 hen d elt i bee de 3 Ee A E Av se Gje Va age at Co J AC l O DI gpa L Q a Q O O 2 F D ot Figure 3 2 Rear Panel Connectors 3U model shown DC OUTPUT Positive and negative outputs Threaded studs for 5 15kW models bus bars for 20 30kW models ANALOG CONTROL Connector J1 I O connector for input programming and analog output monitoring signals as well as status indication and remote shutdown signals See Table 3 1 for individual pin descriptions SENSE Connector J3 Input connector for load voltage sensing to provide a more accurate voltage measurement for remote voltage readback and front panel voltage meter display see Section 3 4 PARALLEL IN Connector Allows master slave configuration of up to five units when connected to another units PARALLEL OUT connector see Section 3 8 PARALLEL OUT Connector Allows master slave configuration of up to five units when connected to another unit s PARALLEL IN connector see Section 3 8 RS232 Connector Optional RJ 11 connector for remote control Dipswitch
3. Table 2 6 Maximum AC Current Ratings Refer to Table 2 7 for input output lug recommendations Lug Manufacturer 3U Models Input Output 6U Models Input Output Panduit PN Series or equivalent LCA Series or equivalent Table 2 7 Recommended Lugs The recommended tools for installation and extraction of the sense connector are listed next in Table 2 8 Tool Manufacturer Manufacturer P N Crimping Device Molex 11 01 0197 Extracting Device Molex 11 03 0044 Table 2 8 Recommended Sense Connector Tools 2 6 LOAD CONSIDERATIONS 2 6 1 INDUCTIVE LOADS To prevent damage to the power supply from inductive loads the SFA has incorporated a overvoltage shutdown circuit on the output The overvoltage is preset for approximately 110 of the total rated output voltage If the output voltage exceeds this amount for more than a few milliseconds the output will shutdown In order to reset the unit the input standby switch will need to be cycled on and off 2 7 OUTLINE DRAWINGS Figure 2 1 and Figure 2 2 next show the outlines and overall dimensions of the 3U and 6U models of the SFA Series product line 2 8 M550292 01 Rev G Sorensen SFA Series Installation INPUT STUDS 1 4 20 4 PL
4. Eight position dipswitch to configure an SFA Series unit with an IEEE option GPIB Connector Optional connector for remote control AC Input Bus Bars Connection for 3 phase AC and Ground M550292 01 Rev G 3 3 Operation Sorensen SFA Series 3 1 1 SHAFT LOCK OPTION This option replaces the standard control knob with a two piece shaft lock This is installed over the current adjustment potentiometer shaft to prevent rotating under conditions of shock vibration or accidental contact For adjustment the following steps apply 1 Loosen the shaft by rotating the outer locking nut counter clockwise with a 7 16 inch wrench 2 Adjust the shaft with a flat screwdriver to the desired output level Tighten the outer locking nut rotating clockwise to approximately 5 LB in 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 inch wrench to approximately 15 LB in 1 69 N m Gone Nut Locking Nut loosen e p Sytten V Sm Locking Nut Figure 3 3 Shaft Lock CAUTION A Never completely loosen the cone nut or remove the shaft lock from the chassis 3 2 LOCAL OPERATION The SFA Series power supply is shipped from the factory configured for local current control and local voltage sensing The ANALOG CONTROL connector is supplied with a mating connector with remote ON OFF jumpered for ON term
5. C 75 C 85 C 90 C Types RUW Types FEPW Types V MI Types TA TBS AWG T TW UF RHW RH RUH SA AVB SIS FEP MCM THW THWN FEPB RHH THHN XHHW USE ZW XHHW Current Rating 14 20 20 25 25 12 25 25 30 30 10 30 35 40 40 8 40 50 55 55 6 55 65 70 75 4 70 85 95 95 3 85 100 110 110 2 95 115 125 130 1 110 130 145 150 0 125 150 165 170 00 145 175 190 195 000 165 200 215 225 0000 195 230 250 260 2 6 Table 2 4 Minimum Wire Size When determining the optimum cable specification for your power applications the same engineering rules apply whether going into or out of an electrical M550292 01 Rev G Sorensen SFA Series Installation device Thus this guide applies equally to the input cable and output cable for this Sorensen instrument and application loads Power cables must be able to safely carry maximum load current without overheating or causing insulation destruction It is important to everyday performance to minimize IR voltage drop loss within the cable These losses have a direct effect on the quality of power delivered to and from instruments and corresponding loads When specifying wire gauge consider the operating temperature Wire gauge current capability and insulation performance drops with the increased temperature developed within a cable bundle and with increased environmental temperature Thus short cables with generously derated gauge and insulation
6. Connect a short or an appropriate load across the output terminals Rotate the Current control knob fully counterclockwise this sets the current control at 0 Amps 3 Turn on the power supply Press and hold the Set Reset Overcurrent Protection pushbutton on the front panel and observe the reading on the current display This is the M550292 01 Rev G Sorensen SFA Series Operation present setting of the OCP limit The factory default setting is approximately 110 of the maximum rated output of the supply 5 While holding down the Set Reset button use a small adjustment screwdriver to adjust the OCP setting by turning the 4 turn recessed adjust potentiometer counterclockwise As you adjust the potentiometer the reading on the current display should decrease increase as you adjust in a clockwise direction 6 Set the OCP to about 80 90 of the maximum rated output current and note the OCP current value Release the Set Reset pushbutton 7 Rotate the Current knob clockwise until the current display indicates you are about 2 3 below the OCP voltage value noted above 8 Slowly continue to increase the output of the supply until you exceed the value of the OCP setting At this point the OCP light should turn on and the output of the supply will turn off causing the output to go to 0 volts as indicated on the voltage display 9 Turn the Current knob fully counterclockwise then press and hold the Set Reset pushbutton until the O
7. V MON Zout Output voltage monitor 0 10 VDC equals to 0 100 rated 1000 voltage Minimum load resistance 10kQ M550292 01 Rev G 3 9 Sorensen SFA Series Operation 5 Schematic Electrical Sep D Symbol Chars Functional Description 20 Not Used 21 Not Used 10 8V 1 milliamp current source for remote current programming 22 IP RES om lianas using resistance 0 5k ohm resistor referenced to common H will program the output from 0 100 Current programming return Used with J1 10 J1 16 or J1 22 23 IP RTN Zin 10kQ and must be referenced to or within 3V of the circuit common t p Circuit common Same potential as the negative output a COM terminal Current programming return Used with J1 10 J1 16 or J1 22 25 IP RTN Zin 10kQ 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 See Section 3 2 5 1 Signals not available with isolated analog control option Control ground is isolated from power ground with the isolated analog control option A CAUTION If standard analog programming is used note the programming return J1 6 amp J1 24 is at the same potential as the negative output terminal of the power supply Observance of return connections should be made with respect to input programming signal equipment Im
8. meter display e CAUTION If the power supply is operated with load power lines disconnected and sensing line connected internal power supply damage may occur Output current then flows through sensing terminals To use remote voltage sensing connect the power supply as described below See Figure 3 7 for connection requirements Connect sensing leads from the load positive to J3 1 and the load negative to J3 2 A shielded twisted pair hookup wire is recommended to avoid potential noise interference 3 12 M550292 01 Rev G Sorensen SFA Series Operation LOAD 4 D DO J3 SUPPLY OUTPUT TERMINALS Figure 3 7 Remote Sensing Operation at the Load For accurate measurements through remote voltage readback and front panel voltage meter display M550292 01 Rev G 3 13 Operation Sorensen SFA Series 3 5 REMOTE OUTPUT ON OFF CONTROL Remote on off control may be accomplished by contact closure or by an isolated external AC DC or TTL CMOS voltage source 1 Remote on off by contact closure Output is on when contacts J1 5 and J1 6 are closed See Figure 3 8 for connection requirements 1 14 ON OFF 5 gt 6 25 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 CMOS source Application of AC DC or high state TTL CMOS voltage will turn on the
9. 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 from the quality performance specifications of this Sorensen instrument Also consider how the wiring codes apply to bundles of wire within a cable arrangement In high performance applications requiring high inrush transient currents additional consideration is required The cable wire gauge must consider peak currents which may be up to ten times the average values An underrated wire gauge adds losses which alter the inrush characteristics of the application and thus the expected performance Table 2 5 presents wire resistance and resulting cable voltage drop at maximum rated current Columns Column Size Amperes Ohms 100 Feet Voltage Drop 100 Feet ae ER One Way Column 2 x Column 3 0 257 80068 8 e ss om 2 3 0 Table 2 5 Wire Resistance and Voltage Drop M550292 01 Rev G 2 7 Installation Sorensen SFA Series Refer to Table 2 6 for AC input current requirements and Section 1 2 3 for output current requirements Input Line Current Unit of Input V Amps AC sang 14 27 40 s 67 80 p rpnase
10. 22 IP RES o 23 IP RTN 13 0 5 Kohms O PROGRAM Figure 3 5 Remote Current Programming Using Resistance 2 Remote Current Programming Using a 0 5 VDC or 0 10 VDC Voltage Source A DC voltage source for remote current programming is connected between J1 10 IP 5V or J1 16 IP 10V and the return terminal J1 23 IP RTN Note that the return terminal J1 23 IP RTN must be referenced directly to or within 3V see note of the power supply common J1 24 The voltage coefficient for 5V remote current programming is 50 millivolts 1 of rated output i e for a 300 amp model each 50 millivolts of programming voltage equals 3 amps of output current The voltage coefficient for 10V remote current programming is 100 millivolts 1 of rated output i e for a 300 amp M550292 01 Rev G 3 11 Operation Sorensen SFA Series model each 100 millivolts of programming voltage equals 3 amps of output current See Figure 3 6 for connection requirements 16 IP 10V COM 6 IP 5V 10 0 5VDC _ 23 IP RTN Il 0 10 VDC VOLTAGE 13 2 VOLTAGE SOURCE ER T SOURCE Figure 3 6 Remote Current Programming Using 0 5 VDC or 0 10 VDC Voltage Source 3 4 REMOTE SENSING Remote voltage sensing is recommended for accurate voltage measurement whether you connect sensing leads to the load or directly to the output terminals This will provide the most accurate voltage readback and front panel voltage
11. 3 Preventive 5 1 Master Slave Operation 3 16 M550292 01 Rev G INDEX Mounting Hardware 2 3 O Operation Current Mode 3 6 Local 3 4 Master Slave 3 16 Parallel 3 16 Remote Current Programming 3 11 Remote Output On Off Control 3 14 Remote Overvoltage Setpoint 3 15 Remote Sensing 3 12 Remote Shutdown 3 16 Overvoltage Protection 3 6 Ozone Precaution 2 2 P Parallel Operation 3 16 Potentiometer Locations 4 5 R Rack slides 2 3 Remote Current Programming 3 11 Remote Output On Off Control 3 14 Remote Overvoltage Setpoint 3 15 Remote Sensing 3 12 Remote Shutdown 3 16 Index 1 Index Setup 3 5 Shaft Lock 3 4 Specifications 1 2 Current 1 4 Electrical Characteristics 1 3 Environmental Characteristics 1 2 Noise 1 4 Physical Characteristics 1 5 Ripple 1 4 Voltage 1 4 Index 2 Sorensen SFA Series V Ventilation 2 3 Verification and Calibration 4 2 Current Mode 4 2 W Wire Size 2 6 M550292 01 Rev G
12. 50292 01 Rev G 4 1 Verification and Calibration Sorensen SFA Series 4 2 4 2 1 4 2 SHUNT 4 090 J3 SUPPLY OUTPUT TERMINALS Figure 4 1 Precision Current Shunt STANDARD VERIFICATION AND CALIBRATION PROCEDURE All calibration potentiometers can be adjusted through access holes in the top cover of the SFA Series unit It is not necessary to remove the top cover to perform the calibration procedures CURRENT MODE 1 Set the SFA Series unit to operate in remote current programming mode using an external 0 5 Vdc voltage source as shown in Figure 3 6 in Section 3 3 Remote Current Programming Attach a precision meter across the shunt Kelvin terminals Attach a precision meter in parallel with the voltage programming source Set the voltage source to 0 0V 1mV 5 Apply AC power and verify the current mode indicator is illuminated Verify the unit is set to OA 0 8 of full scale output If necessary adjust R55 for zero current through the shunt See Figure 4 2 Set the programming voltage to 5 0V 1mV Verify the unit is set to 100 0 8 of full scale output current If necessary adjust R69 for 100 of full scale current on the shunt Set the programming source for 0 5V 1mV M550292 01 Rev G Sorensen SFA Series Verification and Calibration 10 Verify the unit is set to 10 0 8 of full scale output current If necessary adjust R55 f
13. 8 cm 25 12 in 63 8 cm Height 5 25 in 13 3 cm 10 5 in 26 7 cm Weight 80 Ibs 36 kg maximum 160 Ibs 73 kg maximum M550292 01 Rev G 1 5 Sorensen SFA Series Overview This page intentionally left blank 1 6 M550292 01 Rev G SECTION 2 INSTALLATION 2 1 INSPECTION Inspect the shipping carton for possible damage before unpacking the unit Carefully unpack the equipment Save all packing materials until inspection is complete Verify that all items listed on the packing slips have been received Visually inspect all exterior surfaces for broken knobs connectors or meters Inspect for dented or damaged exterior surfaces External damage may be an indication of internal damage If any damage is evident immediately contact the carrier that delivered the unit and submit a damage report Failure to do so could invalidate future claims Direct repair issues to Customer Service at 1 800 733 5427 2 2 CONTENTS OF SHIPMENT Depending on the model configuration and options available for your SFA Series power supply the ship kit may include additional parts and accessories At a minimum the ship kit that accompanies your SFA Series power supply includes the following items e AMETEK manuals CD ROM Part No M550008 01 containing the SFA Series DC Power Supplies Operation Manual Part No M550292 01 this manual e Sense mating connector Molex P N 39 01 4031 with loose contacts Molex P N 39 00 0182 e J1 m
14. ACCURACY SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES DAMAGES COSTS OR EXPENSES WHETHER SPECIAL DIRECT INDIRECT CONSEQUENTIAL OR INCIDENTAL WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER S RISK AND REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE TRANSLATION THE ACCURACY CANNOT BE GUARANTEED APPROVED AMETEK CONTENT IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION WHICH IS POSTED AT WWW PROGRAMMABLEPOWER COM b CH Date and Revision June 2009 Revision G Part Number M550292 01 Contact I nformation Telephone 800 733 5427 toll free in North America 858 450 0085 direct Fax 858 458 0267 Email sales programmablepower com service programmablepower com Web www programmablepower com This page intentionally left blank Important Safety Instructions Before applying power to the system verify that your product is configured properly for your particular application Hazardous voltages may be present when covers are removed Qualified personnel must use extreme caution when servicing this equipment d Circuit boards test points and output voltages also may be floating above WARNING below chassis ground The equipment used co
15. AMETEK PROGRAMMABLE POWER Sorensen SFA Series DC Power Supplies Operation Manual M550292 01 Rev G www programmablepower com About AMETEK AMETEK Programmable Power Inc a Division of AMETEK Inc is a global leader in the design and manufacture of precision programmable power supplies for R amp D test and measurement process control power bus simulation and power conditioning applications across diverse industrial segments From bench top supplies to rack mounted industrial power subsystems AMETEK Programmable Power is the proud manufacturer of Elgar Sorensen California Instruments and Power Ten brand power supplies AMETEK Inc is a leading global manufacturer of electronic instruments and electromechanical devices with annualized sales of 2 5 billion The Company has over 11 000 colleagues working at more than 80 manufacturing facilities and more than 80 sales and service centers in the United States and around the world Trademarks AMETEK is a registered trademark of AMETEK Inc Other trademarks registered trademarks and product names are the property of their respective owners and are used herein for identification purposes only Notice of Copyright SFA Series DC Power Supplies Operation Manual 2004 2008 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
16. CP light turns off 10 Reset the OCP setting as appropriate for your application per steps 4 and 5 above If you do not chose to use OCP then the OCP adjust may be set fully clockwise to approximately 110 of the rated output current of the supply If OCP mode did not function as indicated above recheck your setup and perform the check again H the function continues to fail contact the factory for assistance 3 2 5 ANALOG CONTROL CONNECTOR J1 The ANALOG CONTROL connector on the rear panel allows the unit to be configured for different operating configurations local and remote current programming current and voltage output monitoring output enable disable etc The setup and operating requirements of each configuration are provided in Sections 3 3 through 3 7 ISOLATED ANALOG CONTROL OPTION The Isolated Analog Control uses the same Analog Control connector J1 This option fully isolates remote control signals and allows control of units not connected to acommon ground Control ground is isolated from power ground which protects against potential damage from systems with high electrical noise or large ground loop currents NOTE Some standard analog programming signals may not be available with this option See Table 1 2 2 for details M550292 01 Rev G 3 7 Operation Sorensen SFA Series CAUTION This option is not intended to allow operation of the power supply at excessive voltages Refer to Section 2 INSTALLATION for m
17. G ag Sorensen SFA Series Overview 1 2 TECHNICAL SPECIFICATIONS The following sections provide environmental electrical and physical characteristics for the SFA Series power supplies Note Specifications are subject to change without notice Note The SFA Series power supplies are intended for indoor use only Please refer to Section 2 4 for use location requirements 1 2 1 ENVIRONMENTAL CHARACTERISTICS Parameter Specification Temperature Coefficient 0 03 C of maximum output current rating for current set point Ambient Temperature Operating 0 to 50 C Storage 25 to 65 C o Internal fans vents on sides and rear Units may be stacked without Cooling clearance above or below Humidity 95 maximum non condensing 0 to 50 C 45 C maximum wet bulb temperature Operating full power available up to 5 000 feet 1 524m Altitude derate 10 of full power for every 1 000 feet higher non operating to 40 000 feet 12 192m 1 2 M550292 01 Rev G Sorensen SFA Series Parameter Overview 1 2 2 ELECTRICAL CHARACTERISTICS Specification Input Power Voltage Standard 208 220 VAC 10 tested to 187 242 VAC Voltage Options 380 400 VAC 10 tested to 342 440 VAC 440 480 VAC 10 tested to 396 528 VAC Frequency 47 to 63 Hz Phases 3 phase 3 wire plus ground Not phase rotation sensitive Neutral not used Front Panel Meter Accuracy Volta
18. NG All maintenance that requires removal of the cover of the unit should only be done by properly trained and qualified personnel Hazardous voltages exist inside the unit Disconnect the supply from the input power before performing any maintenance Service fuse verification and connection of wiring to the chassis must be accomplished at least five minutes after power has been removed via external means all circuits and or terminals to be touched must 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 e Once a unit is removed from service vacuum all air vents including 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 e Low pressure compressed air may be used to remove dust from in and around components on the printed circuit boards A WARNING The OFF position of the power switch does not remove voltage from the input terminal blocks Remove all external power before performing any service M550292 01 Rev G 5 1 Maintenance Sorensen SFA Series An annual inspection of the SFA Series unit is recommended Table 5 1 lists the visual inspection checks to be performed and th
19. PTION VERIFICATION AND CALIBRATION PROCEDURE All calibration potentiometers can be adjusted through access holes in the top cover of the SFA Series unit It is not necessary to remove the top cover to perform the calibration procedures M550292 01 Rev G 4 3 Verification and Calibration Sorensen SFA Series 4 3 1 CURRENT MODE 1 Set the SFA Series unit to operate in remote current programming mode using an external 0 5 Vdc voltage source as shown in Figure 3 6 in Section 3 3 Remote Current Programming Attach a precision meter across the shunt Kelvin terminals Attach a precision meter in parallel with the voltage programming source Set the voltage source to 0 0V 1mV 5 Apply AC power and verify the current mode indicator is illuminated 11 12 Verify that the unit is set to OA 0 8 of full scale output If necessary adjust R47 for zero current through the shunt see Figure 4 1 in Section 4 1 2 Preparation Set the programming voltage to 5 0V 1mV 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 Set the programming source for 0 5V 1mV Verify that the unit is set to 10 0 8 of full scale output current If necessary adjust R47 for 10 of full scale current on the shunt Repeat the steps above as required to obtain the required accuracy Set the programming source to obtain 100 output current o
20. ating connector Cinch P N DB25P or equivalent normally shipped attached to rear panel J1 e Back shell for J1 DB25 mating connector Cinch P N DCH B 001 or equivalent M550292 01 Rev G Installation Sorensen SFA Series e Screw lock washer and nut for AC input and DC output connections 5 15 kW 14 20UNG 2B x 1 2 4 ea AC input only 20 30 kW 3 8 16UNC 2B x 7 8 6 ea e Black screw 10 32UNC 2B x 1 2 front panel rack fastener 5 15 kW 4ea 20 30 kW 8 ea If any of these parts are missing please contact Customer Service at 1 800 733 5427 2 3 INPUT OUTPUT CONNECTIONS WARNING A High voltage present Risk of electrical shock Do not remove cover Refer to qualified service personnel Table 2 1 lists all external connections for the SFA Series models Table 2 2 and Table 2 3 provide input and output connection descriptions by power supply type For permanently connected equipment a readily accessible disconnect device shall be incorporated in the fixed wiring For pluggable equipment the socket outlet shall be installed near the equipment and shall be easily accessible Take precautions to ensure that the concentration of ozone is limited to a safe value The recommended long term exposure limit for ozone is 0 1 PPM 0 2 mg m CAUTION Do not use the SFA power supplies in series operation CAUTION For proper connection to the mains a 100 amp circuit breaker or fuse for 3U units an
21. ative output terminal Damage may occur if the non isolated analog control connector of a supply is connected to an external ground referenced input output device Such a connection creates ground loop currents To correct ground loop problems the Isolated Analog option is advised in order to isolate the external ground reference signals from the internal control circuitry of the supply 3 2 2 INITIAL SETUP Before connecting the unit to an AC outlet ensure that the front panel ON OFF power switch is in the off position and that the current control knob is fully counterclockwise Check the ANALOG CONTROL J1 mating connector on the rear panel to verify that pins 5 and 6 Remote Output On Off are shorted together to enable the output of the supply see Section 3 5 This is the default configuration installed from the factory Apply power to the AC mains input M550292 01 Rev G 3 5 Operation Sorensen SFA Series 3 2 3 CURRENT MODE OPERATION 3 2 4 3 6 When the supply is in the Current Mode the default mode for the SFA Series the output current of the supply is controlled by the Current knob on the front panel or by the remote current input see Section 3 3 To verify operation in current mode follow the steps below Connect a high current DC ammeter across the rear panel positive and negative output terminals observing the correct polarity Select wire leads of sufficient current carrying capacity and an amme
22. aximum terminal voltages Following are Figure 3 4 with the connector s pin out diagram and Table 3 1 with ANALOG CONTROL connector designations and functions 13 1 O EE 000000000000 25 14 Figure 3 4 ANALOG CONTROL Connector J1 Pin out O T i E Schematic Electrical Er Symbol Chars Functional Description Isolated remote on off Externally supplied AC DC voltage source 1 ISO Zin 6 kQ for on off control A positive 12 to 240 VAC or 6 to 120 VDC ON OFF i 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 Isolated circuit return used with isolated on off control oe ltt and J1 14 Remote overcurrent set remote signal sets the overcurrent 3 REM OC Zin trip level 0 5 5 VDC 0 110 Apply a 10 5 VDC to 13 3 SET 20 kQ VDC signal for 4 seconds to reset an OCP condition See Section 3 6 4 Not Used Must sink h 5 ON OFF 1mA to Remote on off Switch relay contacts or a direct short l enable between this terminal and circuit common turns on the unit 6 t Circuit Common Same potential as the negative output COM terminal 7 MON Zout Output current monitor 0 10 VDC equals 0 100 rated current 100Q Minimum load resistance 10kQ 3 8 M550292 01 Rev G Sorensen SFA Series Operation O T lt Schemati
23. c Electrical serer Symbol Chars Functional Description 8 Not Used 9 Not Used 0 Remote current programming using a 0 5 VDC source SR ES ee Do not exceed 13 3 VDC 11 Zout 0 5 VDC 0 100 front panel current control monitor output ISET 100Q Minimum load resistance 10kQ E 1 Remote Sense on 60 volts output units 12 SENSE ker For new installations use J3 recommended only for urpu backward compatibility in existing systems terminal ear 8 Remote Sense on lt 60 volts output units 13 SENSE j t For new installations use J3 recommended only for Hipu backward compatibility in existing systems terminal ISO Isolated TTL CMOS on off control A high state TTL CMOS voltage 14 TTUCMOS Zin 2 2kQ turns on the power supply and a low state or open connection turns the supply off 15 Not Used ba Remote current programming using a 0 10 VDC source D Ee Ee Do not exceed 25 VDC Zout Fault state output A high state approximately 10 VDC 17 FAULT 1000 indicates a converter temperature or bias supply fault and the LED on the front panel will illuminate Shutdown fault This terminal goes to high state in the event of converter temperature overvoltage or bias supply fault A 18 S D FAULT Zout 7 VDC to 13 3 VDC signal can be applied to this pin to 1009 shutdown the output of the unit An 8 VDC minimum output signal is provided into a 10 kQ minimum load in the event of an internally generated shutdown 19
24. ceable components in the power supply WARNING Only properly trained and qualified personnel should remove the cover from the power supply Service fuse verification and connection of wiring to the chassis must be accomplished at least five minutes after power has been removed via external means all circuits 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 listed in Table 5 2 Note however that failure of one of these fuses indicates a more serious problem has occurred Please contact the factory for further assistance PCB Part No Reference Value Manufacturer Part No Bias Supply F1 F2 F3 600 Volt 5 Amp Littelfuse KLK 5 Module Controller F1 600 Volt 30 Amp Littelfuse KLKD30 Table 5 2 Fuse Values M550292 01 Rev G 5 3 Maintenance Sorensen SFA Series This page intentionally left blank 5 4 M550292 01 Rev G C Circuit Breaker Requirements 2 2 2 5 Controls and Indicators 3 1 Analog Control J1 3 7 Current Mode Operation 3 6 Verification and Calibration 4 2 F Fuses 5 3 Inductive Loads 2 8 Input Output Connections 2 2 Connector Functions 2 4 Isolated Analog Control 3 7 J J1 Connector 3 7 L Loads Inductive 2 8 Location and Mounting 2 3 M Maintenance Annual Inspection 5 2 Fuses 5
25. ceeded preset level and power supply output is turned off MODULE FAULT Indicator Yellow LED indicates an internal fault such as bias supply thermal or converter failure SET RESET OVERCURRENT PROTECTION Pushbutton Depress button to view OCP level Push and hold for 4 seconds to reset OCP condition CURRENT knob 10 urn adjustment sets the output current Optional shaft locks not shown Please see Section 3 1 1 ON OFF Switch Two position switch enables or disables the power supply WARNING The OFF position of the power switch does not remove voltage from the input terminal blocks Remove all external power before servicing the unit M550292 01 Rev G Sorensen SFA Series Operation 10 11 12 13 14 15 16 17 18 Refer to Figure 3 2 and the corresponding descriptions below for an explanation of rear panel connectors
26. d a 200 amp circuit breaker or fuse for 6U units is required WARNING Under no condition should the negative output terminal exceed 300V to earth ground for non isolated Analog programming 600V for supplies with the Isolated Analog option installed gt PP 2 2 M550292 01 Rev G Sorensen SFA Series Installation CAUTION Floating the negative output terminal floats the power supply s internal control circuitry common level to the same potential as the negative output terminal On a A standard non isolated supply the common of the analog control connector J1 ea floats at the same potential as the negative output terminal Damage may occur if the non isolated analog control connector of a supply is connected to an external ground referenced input output device Such a connection creates ground loop currents To correct ground loop problems the Isolated Analog option is advised in order to isolate the external ground reference signals from the internal control circuitry of the supply 2 4 LOCATION AND MOUNTING WARNING To reduce the risk of fire or electrical shock install the SFA Series unit ina temperature and humidity controlled indoor area free of conductive contaminants CAUTION The unit should be provided with proper ventilation The rear and both sides of the unit should be free of obstructions To ensure proper airflow a minimum 4 clearance from the rear air outlet is required The unit
27. e shut down the output of the power supply Disabling or opening the 12 VDC signal will allow the unit to revert to normal operation GR Dun 5 91148 S D FAULT COM 6 gt ar It 0 12 VDC 13 22 VOLTAGE O SOURCE dl Figure 3 12 Remote Shutdown Using DC Voltage Source MASTER SLAVE OPERATION The following modes of operation are used for applications requiring more current or voltage than is available from a single power supply To meet the requirements for greater output voltage or current up to five supplies may be connected in parallel PARALLEL OPERATION In the parallel mode of operation a master slave configuration is established Up to five power supplies may be paralleled using this configuration To set up the parallel mode of operation connect the interface cable P N 890 453 03 from the master unit to the slave unit s as shown below in Figure 3 13 Next connect the positive outputs of supplies together and the negative outputs of the supplies together It is recommended that the outputs are connected together as Close to the load as practical M550292 01 Rev G Sorensen SFA Series Sorensen SFA Series Operation Master Slave Interface Cables Power Supply 1 Master Power Supply 2 Slave Power Supply 5 Slave Figure 3 13 Master Slave Connection NOTE The OCP circuit remains active for all units in parallel operation If t
28. e corrective action to be taken Table 5 1 Recommended Annual Inspection Item Inspect For Corrective Action External connector Looseness bent or corroded Clean contacts with solvent plugs and jacks contacts damage or improper moistened cloth soft bristle brush seating in mating connector small vacuum or low compressed air Replace connectors damaged deeply corroded or improperly seated in mating connector Chassis fan and Dirt and corrosion Clean with cloth moistened with extruded heatsinks soapy water External electrical Broken burned or pinched Repair or replace defective wires wiring wire frayed worn or missing insulation External solder Corrosion loose cracked or Clean and resolder connections connections dirty connections Dirt and moisture Short circuits arcing Clean as required buildup corrosion overheating Front panel controls Dirt and corrosion Clean with cloth moistened with and meters soapy water Use a Kimwipe tissue and GTC glass cleaning compound to clean the meter faces CAUTION For safe and continued operation of the SFA Series always operate the unit ina A temperature and humidity controlled indoor area free of conductive contaminants Remember to keep the rear and sides of the unit free of obstructions to ensure proper ventilation 5 2 M550292 01 Rev G Sorensen SFA Series Maintenance 53 FUSES There are no user repla
29. ecceeeceecceccceeccecccececececeecuueceueceeecesenteenass 3 6 3 2 5 Analog Control Connector UI 3 7 3 3 REMOTE CURRENT BROGRAMMING 3 11 34 REMOTE SENSE see ee 3 12 3 5 REMOTE OUTPUT ON OFF CONTROL oaoannnanannnnnnnnnnnnnnnnnrnrnnnrannn 3 14 3 6 REMOTE OVERCURRENT SETPOINT cccecceceececcecceceecaececceceeaeees 3 15 3 7 REMOTE SHUTDOWN S D E 3 16 3 8 MASTER SLAVE OPERATION snnvnnnnnnvnnnnnnnnnnnnnnnnnnnnrnnnnnnrnennnnnnnnee 3 16 3 8 1 Parallel e le EE 3 16 SECTION 4 VERIFICATION AND CALIBRAT ION ccn 4 1 iere Ren e GE 4 1 4 1 1 Verification and Calibration Cycle rerrnnnrrnnnnnnrrrrnnnnnnrrrnnnnnnnrnnnnnnnnnnnnenn 4 1 4212 PPO EE len EE 4 1 4 2 STANDARD VERIFICATION AND CALIBRATION DROCEDURE 4 2 4 21 Current Mode saue uaa der 4 2 4 2 2 Resistor Programming Current Sources rrrnrrrrrnnnnnnvrrnnnnnnnnrnnnnrnnnnnnnnnr 4 3 4 3 ISOLATED ANALOG OPTION VERIFICATION AND CALIBRATION PROC EOWA Bsaccasesecabechesecdediaadeuaebadasancmodaanbies iidestsacudecd sauscesteduabonst 4 3 4 3 1 Current Mode 4 4 SECTION 5 MAINTENANCE neern erene nenen 5 1 5 1 INTRODUCTION eer dagegen AA 5 1 5 2 PREVENTIVE MAINTENANCE enananannunnnanannnnnnnnnnnnrarnnnnrnrnnnnrnrnrnnnn 5 1 53 RUSE EE 5 3 M550292 01 Rev G Sorensen SFA Series Contents LIST OF TABLES Table 2 1 5kW to 15kW and 20kW to 30kW Series Input Output Connectors s s 2 4 Table 2 2 Input Connections pe 2 4 Table 2 3 Output Connectio
30. ehind the front EIA RETMA rails Access the springs with a flat blade screwdriver or similar device to release from lockout or to remove the chassis from the rack The slides can be mounted to the chassis with this spring oriented on the top or the bottom of the slide Table 2 1 provides details of the SFA Series input and output connectors and their functions Connector Function Connects To Pos Threaded Stud Neg Threaded Stud Pos Bus Bar Neg Bus Bar Output Power 3U models 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 Out Used for parallel operation Refer to Section 3 8 Table 2 1 5kW to 15kW and 20kW to 30kW Series Input Output Connectors Power Supply Type Connection Description 5 kW to 15 kW Bus Bar with holes for 1 4 20 bolts 20 kW to 30 kW Bus Bar with holes for 3 8 16 bolts Table 2 2 Input Connections Power Supply Type Connection Description 5 kW to 15 kW gt 60V 3 8 Threaded Studs 20 kW to 30 kW gt 60V Bus Bar with holes for 3 8 bolts Table 2 3 Output Connections M550292 01 Rev G Sorensen SFA Series Installation CAUTION Prevent damage to the unit follow torque specifications use correct size wire ferrule if used and proper size ferrule crimping too
31. ge 0 5 of full scale 1 digit Current 0 5 of full scale 1 digit Load Regulation Specified at no load to full load nominal AC input Current 0 1 of maximum output current Line Regulation Specified 10 of nominal AC input constant load Current 0 05 of maximum output current Current Ripple 1 p p of full scale current Transient Response Output Slew Rate The output current will recover to within 1 of the set current value within 1ms for a 10 to 100 or 100 to 10 step load change 10 90 current full resistive load nominal AC input 250A ms 400A ms typical rise 200A ms typical fall 160V models 87A ms 5kW 145A ms 5kW typical rise 60A ms typical fall 100V models 190A ms 5kW 238A ms 5kW typical rise 104A ms typical fall Current Overshoot Maximum 8 of full scale for 0 to 100 change into a resistive load Stability 0 05 of set point after 8 hr warm up at fixed line load and temperature Remote Control Monitor On Off control via contact closure 6 120 VDC or 12 240 VAC and TTL or CMOS switch current monitor OCP limit set summary fault status Power Factor gt 0 9 typical for 208 220VAC input gt 0 78 typical for 380 400VAC input gt 0 7 typical for 440 480VAC input M550292 01 Rev G 1 3 Sorensen SFA Series Overview Parameter Specification Efficiency 87 typical at ful
32. he units are set to different OCP levels the paralleled system will trip according to the lowest setting For ease of use adjust the OCP levels for the slaves to maximum and adjust the master OCP level to the desired setting M550292 01 Rev G 3 17 Operation Sorensen SFA Series This page intentionally left blank 3 18 M550292 01 Rev G SECTION 4 VERIFICATION AND CALIBRATION 4 1 INTRODUCTION This section provides verification and calibration procedures for the standard SFA Series power supplies and isolated analog control option 4 1 1 VERIFICATION AND CALIBRATION CYCLE It is recommended that the power supply be calibrated and or verified once each year of operation 4 1 2 PREPARATION WARNING Hazardous voltages exist on the rear of the supply Great care must be taken 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 only technically trained personnel should perform calibration procedures The calibration and adjustment procedures require two digital multimeters To set up for the calibration procedures first perform the following 1 Remove prime AC power 2 Connect the power supply to a precision current shunt as shown in Figure 4 1 below capable of a minimum of 10 above full rated output A fan may be required to cool the shunt M5
33. ies 2 10 IL IL IL 1 IL IL IL IL IL IL I d IL IL I I E IL IL IL I IL IL IL p Slide Mounting oT Wl 8 32UNC 2B ces 6PL Nearside a ea 7PL Far side i ch Tac i 16 90 4 00 Ei D AH ppt EN fe D Ei e EN HAHAH mmm Hit At Oft BAKKA TM wes Figure 2 2 SFA Series Out
34. inal 5 shorted to terminal 6 Prior to turning the unit on rotate the current potentiometer fully counterclockwise minimum output Then turn the power ON and adjust the current to the desired output 3 4 M550292 01 Rev G Sorensen SFA Series Operation This section provides an overview of front panel operation and initial functional tests of the power supply 3 2 1 FLOATING AND POLARIZED OUTPUT The SFA Series supply can be set up for a Positive or Negative supply as well as standard operation as a floating output supply FLOATING OUTPUT The output terminals are normally floating from chassis ground No extra steps or connections are required for a floating output POSITIVE SUPPLY SETUP Attach the negative output terminal to the supply chassis The output reference is now chassis ground When the output voltage is set or programmed the supply will output a positive potential from chassis ground NEGATIVE SUPPLY SETUP Attach the Positive output terminal to the supply chassis The output reference is now chassis ground When the output voltage is set or programmed the supply will output a negative potential from chassis ground CAUTION Floating the negative 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 control connector J1 d floats at the same potential as the neg
35. ipper s expense NOTE A returned product found upon inspection by AMETEK to be in specification is subject to an evaluation fee and applicable freight charges vi This page intentionally left blank FCC NOTICE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference 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 correct the interference at his own expense M550292 01 Rev G vii This page intentionally left blank viii M550292 01 Rev G ABOUT THIS MANUAL This manual has been written expressly for the Sorensen SFA Series of power supplies that have been designed and certified to meet the Low 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 symbols have been used both on the unit itself and in this manual to warn the operator of potentially hazardous situations see Safety
36. l TORQUE SPECIFICATIONS e The unit s Phoenix Connectors require 18 in lb to 20 in lb 2 Nm to 2 3 Nm torque e Wire ferrules are recommended their size must match the wire gauge e Crimp tool size must be appropriate to the ferrule size e Wire insulation should be stripped back no more than 5 8 inch for the ferrule For more information on this AC input connector please look up Phoenix Contact part number HDFKV 16 at www phoenixcontact com M550292 01 Rev G 2 5 Installation Sorensen SFA Series 2 5 2 5 1 WIRE SELECTION Care must be taken to properly size all conductors for the input and output of the power supply This section provides guidance in the selection of wire size Note that cables with Class B or C stranding should be used Fine stranded cables should not be used unless crimp on lugs or ferrules are used that are approved for fine stranded cables WIRE SIZE The tables below will assist in determining the appropriate wire size for both the input and output connections Table 2 4 below gives minimum recommended wire size This table is derived from the National Electrical Code it is for reference only Local laws and conditions 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 of Copper Conductor 60
37. l load nominal line REMOTE PROGRAMMING Accuracy CONSTANT CURRENT 0 8 of full scale output Overcurrent Protection 1 of full scale output Resistive Control Input CONSTANT CURRENT 0 100 0 5 kQ Voltage Control Input Constant Current 0 100 0 5 VDC or 0 10 VDC Overcurrent Protection OCP 0 110 0 5 5 VDC Remote Sensing Terminals are provided to sense output voltage at point of load for accurate voltage measurement Overvoltage Protection Fixed at approximately 110 of the rating compliance voltage Reset requires cycling the front panel standby power switch off on ISOLATED ANALOG CONTROL OPTION Input to Output Isolation 600 V Compliant with maximum terminal float voltage Recommended operation under SELV normal conditions Standard Non isolated Analog programming 300V maximum Recommended operation under SELV normal conditions 1 2 3 SFA SERIES VOLTAGE AND CURRENT SPECIFICATIONS Voltage skw 10kw 15kw 20kw 25kw am 0 60V 0 83A 0 167A 0 250A 0 333A 0 417A 0 500A 0 100V 0 50A 0 100A 0 150A 0 200A 0 250A 0 300A 0 160V 0 31A 0 63A 0 94A 0 125A 0 156A 0 188A NOTE Contact factory for availability on specific models M550292 01 Rev G Sorensen SFA Series 1 2 4 PHYSICAL CHARACTERISTICS Overview Dimension 3U Models 6U Models Width 19 00 in 48 3 cm 19 00 in 48 3 cm Depth 25 12 in 63
38. line Drawing 6U Models 20kW to 30kW M550292 01 Rev G 3 1 CONTROLS AND INDICATORS SECTION 3 OPERATION Refer to Figure 3 1 and the corresponding descriptions below for an explanation of front panel controls and indicators on the SFA Series power supply Q Gi OG 19 00 L im WOLTS DC SFA 60 250 5 22 OD 00000000 OG0OB0000 O0000D0000 OOOO eer OOOOOOOOO0O POOOOOOOOOGC DC CC DC CC BOGGOO00000 20000000000 OCH OGGOOO000M0 DOC Zoe Geet OC EE E est ORORO KOROKORO Figure 3 1 Front 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 output current of the supply Display indicates the OCP setting when the SET RESET OVERCURRENT PROTECTION button is pushed 3 ADJUST Overcurrent Potentiometer Adjusts the overcurrent trip level M550292 01 Rev G 3 1 Operation Sorensen SFA Series Oo ao N Oo CURRENT MODE Indicator Green LED lights when in the constant current mode of operation When in the constant current mode the output current will regulate to the set value and the output voltage will vary with the load This is the normal operating mode for the SFA OVERCURRENT FAULT Indicator Red LED indicates output current has ex
39. misuse accident negligence or failure to maintain the same as specified or required by AMETEK e is damaged by modifications alterations or attachments thereto which are not authorized by AMETEK e is installed or operated contrary to the instructions of AMETEK e is opened modified or disassembled in any way without AMETEK s consent or e 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 PROCEDURE 1 Request a Return Material Authorization RMA number from the repair facility must be done in the country in which it was purchased e Inthe USA contact the AMETEK Repair Department prior to the return of the product to AMETEK for repair Telephone 800 733 5427 ext 2295 or ext 2463 toll free North America 858 450 0085 ext 2295 or ext 2463 direct e Outside the United States contact the nearest Authorized Service Center ASC A full listing can be found either through your local distributor or our website www programmablepower com by clicking Support and going to the Service Centers tab 2 When requesting an RMA have the following information ready e Model number e Serial number e Description of the problem NOTE Unauthorized returns will not be accepted and will be returned at the sh
40. n the shunt Verify that the front panel meter displays 100 1 of full scale output current If necessary adjust R85 such that the current display reads 100 current CAUTION Hazardous voltages may be present on the output after the output is disabled Allow 5 minutes to drain any charge to safe levels before connecting or removing output wiring 4 4 M550292 01 Rev G Sorensen SFA Series for GN REZ RIS ni RAG RSA PGT eg eege SA REZRIS vi pi RBA RIT mr Verification and Calibration STANDARD CALIBRATION ADJUSTMENT R71 IPRES 1mA Adjust R87 Voltage Meter Adjust R86 Current Meter Adjust R69 100 Current Adjust R55 Zero Current Adjust ISOLATED ANALOG OPTION CALIBRATION ADJUSTMENT R86 Voltage Meter Adjust R87 Current Meter Adjust R33 100 Current Adjust R47 Zero Current Adjust FACTORY USE ONLY R35 R73 R37 R74 R39 R82 R45 R85 R46 R90 R54 R104 3 C SA R82 R45 R71 R46 LC R87 SS NT CD R86 R73 R104 R55 Figure 4 2 Potentiometer Locations M550292 01 Rev G 4 5 Verification and Calibration Sorensen SFA Series This page intentionally left blank 4 6 M550292 01 Rev G SECTION 5 MAINTENANCE 5 1 INTRODUCTION This chapter contains preventive maintenance information for the SFA Series power supplies WARNI
41. ns sis gccetendessoneveetevaed onde terse ears ne onteusenaoeeneyads cadaetnoot aksene 2 4 Table 2 4 Minimum EE 2 6 Table 2 5 Wire Resistance and Voltage Drop eennnnrnrrnnnnnnnnnnnnnnnvrnnnnnnnnnnnnnnnennnnennnnnennn 2 7 Table 2 6 Maximum AG Current Ratings eier mennene 2 8 Table 2 7 Recommended Lugs EE 2 8 Table 2 8 Recommended Sense Connector Tools ENEE 2 8 Table 3 1 ANALOG CONTROL Connector J1 Designations and Functions 3 10 Table 5 1 Recommended Annual Inspection eeennnnrnnnnnnnnnnnnrnnnnnnnnnnnnnnnvnnnnenvnnennnnnnnnnnn 5 2 able 5 2 Fuse EE 5 3 LIST OF FIGURES Figure 1 1 Model Number Decoding wiiscci c cicccetinesietecdetdeettesies EERNEdEREEdENEEEEEE KREE 1 1 Figure 2 1 SFA Series Outline Drawing 3U Models SkW to DK 2 9 Figure 2 2 SFA Series Outline Drawing 6U Models 20kW to 20KWW 2 10 Figure 3 1 Front Panel Controls and Indicators 3U model shown rrenrnnnrrvnnvrvrrrrnnnrnnnr 3 1 Figure 3 2 Rear Panel Connectors 3U model shown rrnrnannnnvnnnnnnnvrnnnnnnnrnnnrrrrrrnnnnrnnnn 3 3 Lei al e 3 4 Figure 3 4 ANALOG CONTROL Connector J1 Pin OUt rerannnrvnnnrnnnvnnnnrnnnrrnnrrrrrrnnsrernnr 3 8 Figure 3 5 Remote Current Programming Using Resistance ss sseseeseeeserrrerrrrrrereee 3 11 Figure 3 6 Remote Current Programming Using 0 5 VDC or 0 10 VDC Voltage Source3 12 Figure 3 7 Remote Sensing Operation at the Los 3 13 Figure 3 8 Remote On Off Control b
42. ntains ESD sensitive ports When installing equipment follow ESD Safety Procedures Electrostatic discharges might ke ge cause damage to the equipment Only qualified personnel who deal with attendant hazards in power supplies are allowed to perform installation and servicing Ensure that the AC power line ground is connected properly to the Power Rack input connector or chassis Similarly other power ground lines including those to application and maintenance equipment must be grounded properly for both personnel and equipment safety Always ensure that facility AC input power is de energized prior to connecting 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 HAZARDOUS TO HUMAN SAFETY may be normally generated on the output terminals The customer user must ensure that the output power lines are labeled properly as to the safety hazards and that any inadvertent contact with hazardous voltages is eliminated Guard against risks of electrical shock during open cover checks by not touching any portion of the electrical circuits Even when power is off capacitors may retain an electrical charge Use safety glasses during open cover checks to avoid personal injury by any sudden component failure Neither AMETEK Programmable Power Inc San Diego California USA nor any of the subsidiary sales o
43. or 10 of full scale current on the shunt 11 Repeat the steps above as required to obtain the required accuracy 12 Set the programming source to obtain 100 output current on the shunt Verify that the front panel meter displays 100 1 of full scale output current If necessary adjust R85 such that the current display reads 100 current CAUTION Hazardous voltages may be present on the output after the output is disabled due to stored capacitive charge Allow 5 minutes to drain the output capacitive charge to safe levels before connecting or removing output wiring 4 2 2 RESISTOR PROGRAMMING CURRENT SOURCES 1 Disable AC power to the unit 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 current programming mode using resistance by connecting a 5K ohm 1 or better tolerance resistor as shown in Figure 3 5 in Section 3 3 Remote Current Programming 4 Attach a precision meter across the shunt Kelvin terminals 5 Apply AC power and enable the unit via the front panel On Off switch Verify there is 5V 1 across the resistor If necessary adjust R45 to measure 5 00V read back on the voltmeter Disable AC power to the unit Remove all connections to the remote analog control connector J1 except the jumper between pins 5 and 6 4 3 ISOLATED ANALOG O
44. page M550292 01 Rev G This page intentionally left blank M550292 01 Rev G CONTENTS SECTION 1 OVERVIEW rrrrvrvrvvrrnnnnnnnnnrrsrrrrvvrrrrrnnnnnsnnssssererrrrrnnnnsnnnen 1 1 1 1 GENERAL DESCRIPTION Ate ag ee 1 1 1 2 TECHNICAL SPECIFICA IONS mates blek ankeret nede 1 2 1 2 1 Environmental Characherstlce 1 2 1 2 2 Electrical Characteristics rnrrvnnrrrnnrrrnnnrrnnnvrnnnvrrnnerennnernnnrennnerennerennnsen 1 3 1 2 3 SFA Series Voltage and Current Specifications sssneeseeeeseere reenen 1 4 1 2 4 Physical Characteristics sm uvumesiisenmenduivdenmin rur vni enr 1 5 SECTION 2 INSTALLATION aaanananannnnnnnnnnnnnnnannrnnrrnnrrnnrrnnrrrrrrrrrrnn 2 1 251i MNPES TON Gees eta tats antics ol mme 2 1 2 2 CONTENTS OF SHIPMENT utad ger 2 1 2 3 NPUT OUTPUT CONNECTIONS ss 2 2 2 4 LOCATION AND MOUNTING en 2 3 2 4 1 6U Chassis Removal from Hack 2 3 2 0 WIRE SELECTION D 2 6 251 Wire SIZ6 Lun herja ae a Re ead dave ee 2 6 2 6 OESCH EERSTEN 2 8 2 6 1 gt IAGUCTIVE K oY Lo CASE E E E E obuce cauvacveccsvdachodedcudessidvvacivensaassssavace s 2 8 2 7 OUTLINE DRAWINGS ee 2 8 SECTION 3 OPERATION EE 3 1 3 1 CONTROLS AND ld eege 3 1 M550292 01 Rev G Contents Sorensen SFA Series 3 1 1 Shaft Lock Option EE 3 4 3 2 LOCAL OPERATION EE EE EE 3 4 3 2 1 Floating and Polarized Er TEE 3 5 22 SEP 3 5 3 2 3 Current Mode Operafion ursvunnnsmvgususeenad dere eels 3 6 3 2 4 Overcurrent Protection ccccccccc
45. power supply See Figure 3 9 and Figure 3 10 for connection requirements ISO ON OFF 1 l 3 14 ISO RTN 2 ACORDO SOURCE op Figure 3 9 Remote On Off Using Isolated AC or DC Voltage Source 3 14 M550292 01 Rev G Sorensen SFA Series Operation 1 gt 14 ISO TTLICMOS ISO RTN 2 2 Figure 3 10 Remote On Off Using Isolated TTL CMOS Voltage Supply 3 6 REMOTE OVERCURRENT SETPOINT CAUTION Do not program the remote overcurrent set point greater than 10 5 5V above the power supply rated current except as noted as internal power supply damage may occur 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 voltage See Figure 3 11 for connection requirements 1 REM OV SET 3 0 5 5VDC VOLTAGE COM 6 SOURCE ae 13 Figure 3 11 Remote Overcurrent Set Using DC Voltage Source NOTE The Remote OCP trip level will ALWAYS take precedence over the local trip level even if the local OCP trip level is set to a lower value To reset an OCP externally apply a 10 5 13 3 VDC signal to J1 3 for a minimum of four 4 seconds M550292 01 Rev G 3 15 Operation 3 3 8 3 8 1 3 16 REMOTE SHUTDOWN S D A remote 12 VDC voltage can be connected externally between terminals J1 18 S D Fault and J1 24 COM to disable i
46. proper connection may result in ground loops and as a result internal power supply damage may occur Output current then flows to chassis by means of external connection to the J1 common J1 6 amp J1 24 3 10 M550292 01 Rev G Sorensen SFA Series Operation 3 3 REMOTE CURRENT PROGRAMMING Remote current programming is used for applications that require the output current be programmed controlled from a remote source An external resistance or external voltage source may be used as a programming device When using remote current programming a shielded twisted pair hookup wire is recommended to prevent noise interference with programming signals 1 Remote Current Programming Using Resistance The resistance coefficient for remote current programming is 5k ohms 100 rated output with respect to terminal J1 23 IP RTN The programming current from terminal J1 22 IP RES is factory set for 1 milliampere This yields a coefficient of 1 0 of rated output current for each 50 ohms If multiple switches or relays are used to program different levels make 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 3 volts see note of the power supply common terminal J1 24 See Figure 3 5 for connection requirements Se 1 oS 114 COM 6 o gt
47. rganizations can accept any responsibility for personnel material or inconsequential injury loss or damage that results from improper use of the equipment and accessories SAFETY SYMBOLS WARNING AN CAUTION Risk of Electrical Shock Refer to Accompanying Documents Direct Current DC Off Supply Standby Supply m Alternating Current AC On Supply 3 Three Phase Alternating Current Protective Conductor Terminal ae Earth Ground Terminal i e Cop Fuse L Chassis Ground This page intentionally left blank Product Family SFA Series DC Power Supplies Warranty Period Five Years WARRANTY TERMS AMETEK Programmable Power Inc AMETEK provides this written warranty covering the Product stated above and if the Buyer discovers and notifies AMETEK in writing of any defect in material or workmanship within the applicable warranty period stated above then AMETEK may at its option repair or replace the Product or issue a credit note for the defective Product or provide the Buyer with replacement parts for the Product The Buyer will at its expense return the defective Product or parts thereof to AMETEK in accordance with the return procedure specified below AMETEK will at its expense deliver the repaired or replaced Product or parts to the Buyer Any warranty of AMETEK will not apply if the Buyer is in default under the Purchase Order Agreement or where the Product or any part thereof e is damaged by
48. should not be installed in a raised ambient temperature greater than 50 C CAUTION This unit is intended for installation in a protected environment No user serviceable parts inside Service to be performed by qualified personnel only gt PP The SFA Series models are designed for mounting in a standard 19 inch 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 mount slides or appropriate L brackets suggested parts are listed below Rack Mount Slide Kit e 5 15kW units P N K550212 01 e 20 30kW units P N K550213 01 2 Secure the unit in place using the screws provided 2 4 1 6U CHASSIS REMOVAL FROM RACK The slides have a Front Disconnect Feature and lock at full extension To return the chassis back into the rack from full extension depress the flat steel spring inward located on the slides and push the chassis back To disconnect and remove the chassis from the rack depress the flat steel spring inward located on the slides and pull the chassis forward M550292 01 Rev G 2 3 Installation Sorensen SFA Series WARNING The 6U SFA Series unit weighs up to 160 Ibs 73kg depending on the model A minimum three person lift is required When the chassis is at full extension the flat springs are located approximately one 1 inch b
49. ter range compatible with the units maximum rated output current NOTE Ifa high current ammeter is not available you may simply short the output terminals together This will not harm the supply 2 Turn on the power supply NG 9 8 Slowly rotate the Current knob clockwise and observe both the front panel current display and the output of the ammeter The minimum range should be from OA to the maximum rated current output of the supply The front panel display and ammeter readings should track within the accuracies of the meter and the front panel display Note the reading on the voltage display This is the compliance voltage of the load at the present output current Note the maximum compliance voltage is set by the specific model of the supply Check that the green Current Mode indicator is on Turn the Current knob fully counterclockwise Turn the power supply off Disconnect the ammeter or short from the output terminals H Current mode operation did not function as indicated above recheck your setup and perform the check again If the function continues to fail contact the factory for assistance OVERCURRENT PROTECTION The Overcurrent Protection OCP function allows the supply to shutdown the output when it exceeds a preset current This may be used to protect sensitive circuits or loads from damage caused by an excessive current on the output of the supply To verify OCP operation follow the steps below 1 2
50. y Contact Closure sssssssssesrnneseereesssrrrnsrrrrrrrenee 3 14 Figure 3 9 Remote On Off Using Isolated AC or DC Voltage Source rrnnnrrrvrrvrrrrrnnnnnn 3 14 Figure 3 10 Remote On Off Using Isolated TTL CMOS Voltage Guppiy 3 15 Figure 3 11 Remote Overcurrent Set Using DC Voltage Source rrrnrrrnnnnnnnvrnnnnnnnvrnnnnn 3 15 Figure 3 12 Remote Shutdown Using DC Voltage Gource 3 16 Figure 3 13 Master Slave CGonnechon ENEE 3 17 Figure 4 1 Precision Current Ghunmt EEN 4 2 Figure 4 2 Potentiometer Beete 4 5 M550292 01 Rev G xi M550292 01 Rev G xii SECTION 1 OVERVIEW 1 1 GENERAL DESCRIPTION The Sorensen SFA Series power supplies are designed specifically for high power laser driver applications requiring variable DC current sources with fast output response times A variety of user interfaces are available ranging from manual front panel control and standard non isolated remote analog control to optional GPIB or isolated remote analog control NOTE The SFA Series power supplies are not designed for series operation and therefore must not be used as such Figure 1 1 decodes the SFA Series model number SF A 100 100 C 1A AA Control Designation E Process Options Voltage Remote Control Options 5 15kW X 20 30kW Input Voltage Options Current No voltage control Value is the max voltage that the supply can source current Figure 1 1 Model Number Decoding M550292 01 Rev
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