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BOP-HV Operator Manual

1. 1 8 Location of Internal Calibration Controls essem eene nennen enne 2 1 BOP Terminations and 5 eren nennen nenne 2 2 A C Source Voltage Selector Location esent 2 4 Rear Programming Connector Wired For Front Panel Operation 2 5 Rack Installation of the BOP 2 6 BOP Voltage Control Channel 3 2 BOP Current Control Channel tete 3 3 BOP Voltage Limiting Circuit a see Ween ee ren seein ale 3 3 BOP Current Limtiting CirCUlt b e i piai aa Sel 3 4 Basic 2 Wire Load Connection and Grounding Connections Between the BOP and the Load ient tete erred ERR en ED neret ie 3 4 Load Connection with Error Sensing and Grounding Connections Between the BOP and the 3 5 Remote Potentiometer Control of the BOP D C Output 1 een 3 9 Remote D C Output Voltage Control By Means of a Two Terminal Resistance Decade nerit 3 9 Digital Control of the BOP 3 10 BOP D C Output Voltage Control with a High Impedance 1V Signal 3 11 Graphs of Possible BOP Input Output Waveshapes seen enm eene enne nn
2. oo 1 8 1 1 1 oo A i i i i FIGURE 1 4 MECHANICAL OUTLINE DRAWING BOP HV BOPHV112211 SECTION 2 INSTALLATION 2 1 UNPACKING AND INSPECTION This instrument has been thoroughly inspected and tested prior to packing and is ready for operation After carefully unpacking inspect for shipping damage before attempting to operate Perform the preliminary operation check as outlined in PAR 2 5 If any indication of damage is found file an immediate claim with the responsible transport service 2 2 TERMINATIONS A FRONT PANEL Refer to FIG 2 2A and Table 2 2 B REAR Refer to FIG 2 2B and Table 2 2 C INTERNAL CALIBRATION CONTROLS Refer to FIG 2 1 and Table 2 1 TABLE 2 1 INTERNAL CALIBRATION CONTROLS REFERENCE DESIGNATION CONTROL PURPOSE ADJUSTMENT PROCEDURE R18 10V CAL Reference Voltage Calibration R31 50 ZERO EQ Pre amp Zero Adjustment Section 3 Par 3 3 1C R36 ZERO Pre amp Zero Adjustment Section 3 Par 3 4 1 R303 lox Stabilization Compensation is E
3. 2 3 2 4 2 5 2 4 A C POWER INPUT REQUIREMENTS The BOP is equipped with a SOURCE VOLTAGE SELECTOR permitting the user to choose between 115 and 230V a c operation by means of a screwdriver actuated switch the switch is accessed by removing the cover Remove the wrap around cover by unscrewing the 18 black oxide screws two screws on the top six screws 2 attaching the mounting flanges eight screws 3 from the side and two screws from the chassis slide support brackets Do not remove the nickel screws in the chassis slide support brackets only remove black oxide screw 4 from each chassis slide support bracket The switch location is illustrated in FIG 2 3 When changing the a c input voltage the A C POWER FUSE must be altered as well according to the information given in FIG 2 3 FIGURE 2 3 A C SOURCE VOLTAGE SELECTOR LOCATION COOLING The components in the BOP power supply rely on forced air towards rear panel cooling for maintaining their operating temperature ALL OPENINGS MUST BE KEPT CLEAR FROM ALL OBSTRUCTIONS TO ENSURE PROPER AIR CIRCULATION Periodic cleansing of the inte rior of the power supply is recommended If the BOP is rack mounted or installed in confined spaces care must be taken that the ambient temperature the temperature immediately sur rounding the power supply does not rise above 65 C 149 F PRELIMINARY CHECKOUT A simple operating check after unpacking and before permanent instal
4. FIGURE 2 1 LOCATION OF INTERNAL CALIBRATION CONTROLS BOPHV 112211 2 1 CURRENT OUTPUT A BOP FRONT PANEL TERMINATIONS AND CONTROLS E OUT S COM f GRD ie B BOP REAR TERMINATIONS AND CONTROLS FIGURE 2 2 TERMINATIONS AND CONTROLS BOPHV 112211 TABLE 2 2 BOP TERMINATIONS AND CONTROLS NO NAME OF FUNCTION FUNCTION NOTE NUMBERS CORRESPOND TO THOSE SHOWN IN FIGURE 2 2 1 A C POWER A C input Power Switch and Indicator Lamp Output READY lamp energized when a c power is turned on If lamp goes off 2 OUTPUT when a c power is applied the internal protection circuit disables the output and front panel controls To restore full operation it is necessarv to turn the power supplv OFF and then ON again after a few seconds 3 t OUTPUT COMMON GROUND Output and grounding terminals parallel with rear barrier strip terminals 4 MODE Operating mode selector switch for VOLTAGE OR CURRENT mode 5 Mechanical voltmeter zero adjustment 6 Mechanical ammeter zero adjustment 7 VOLTAGE LIMIT LED lamp indicating voltage limiting operation Controls for manual adjustment of
5. 3 1 3 2 BOP Operation with Local Front Panel Output 1 3 7 3 2 1 Voltage Mode Operation with Current Limiting ss 3 7 3 2 2 Current Mode Operation with Voltage 3 7 3 3 BOP Operation with Remote Control of the Voltage Control 3 8 3 3 1 Remote D C Output Voltage Control By Resistance emen 3 8 3 3 2 Remote D C Voltage Control By Means of D C Signal Voltage 3 10 3 3 3 The BOP asan Amplifier reed rper emt egre etg pop sett 3 11 3 4 BOP Operation with Remote Control of the Current Control 3 14 3 4 1 Remote Control of the Bop Current essen enne 3 15 3 4 2 Remote Control of the Bop Current seen ene nennen 3 19 3 4 3 3 21 BOPHVSVC112211 i FIGURE 3 6 3 7 3 8 3 9 3 10 3 11 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 3 20 3 21 3 22 3 23 3 24 3 25 3 26 3 27 3 28 LIST OF FIGURES TITLE PAGE BOP High Voltage Operational Power Supply essen enne eene nre iv BOP Output Characteristic ennemis enn nenne 1 4 BOP Output Waveform with Phase Shift eene ennemis 1 5 Mechanical Outline Drawing BOP HV L
6. The BOP may be used as a stabilized d c source of positive or negative voltage with output current limiting for either polarity pre selected for the application at hand 1 2 Determine the output current and voltage requirement of your load Set the BOP MODE SWITCH to the VOLTAGE position and the BIPOLAR VOLTAGE CONTROL switch to ON With the BOP A C POWER switch OFF connect a short circuit across the output termi nals Turn the BOP ON The CURRENT LIMIT LAMP will be on Adjust the CURRENT LIMIT CONTROLS for both polarities as required monitoring the METER for the correct limiting values Pro ceed as follows Turn BIPOLAR VOLTAGE CONTROL fully counterclockwise Adjust the lo LIMIT CONTROL Turn BIPOLAR VOLTAGE CONTROL fully clockwise Adjust the lo LIMIT CONTROL Turn A C POWER switch OFF and remove the short circuit from the output If the application is unipolar choose zero limit for the undesired polarity Without a load connected to the power supply set BOP A C POWER switch to ON Change the BIPOLAR VOLTAGE CONTROL setting until the front panel voltmeter shows the limit voltage values desired adjust the corresponding VOLTAGE LIMIT CONTROL until the VOLTAGE LIMIT LAMP is ON Repeat the same procedure for the other polarity If the application is unipolar choose zero limit for the undesired polarity Go back to the BIPOLAR VOLTAGE CONTROL and adjust for zero output voltage
7. Set the BOP A C POWER switch to OFF and connect the load Turn the A C POWER switch ON again adjust the operating voltage by means of the BIPOLAR VOLTAGE CONTROL to the value required NOTE Ifthe output current exceeds the pre adjusted value at any time the MODE LIGHT will go OFF and the CURRENT LIMIT LIGHT will go on After the cause of the overcur rent is eliminated the indicator lights will return to their initial status If the limit voltage was reached during adjustment the MODE LIGHT will go OFF and the VOLTAGE LIMIT LIGHT will go ON The output voltage will be clamped to the limit value Should the output voltage be decreased via the BIPOLAR OUTPUT VOLTAGE CONTROL the unit will return to the voltage mode of operation and the lights will be reset to the ini tial status CURRENT MODE OPERATION WITH VOLTAGE LIMITING The BOP may be used as a stabilized d c source of positive or negative current with output voltage limiting for either polarity pre selected for the application at hand NOTE Please refer to paragraph 3 1K 1 Turn the A C POWER switch ON and adjust the VOLTAGE LIMIT CONTROLS to the required output compliance voltage as described in PAR 3 2 1 step 4 Turn the A C POWER switch OFF Adjust the CURRENT LIMIT CONTROLS according to PAR 3 2 1 steps 1 3 3 7 3 3 3 3 1 3 8 3 Turn the A C POWER switch OFF and set the BOP MODE switch to the CURRENT posi
8. tion and the BIPOLAR CURRENT CONTROL switch to ON Reinstall the short circuit across the output terminals 4 Turn the A C POWER switch and adjust the BIPOLAR CURRENT CONTROL to zero output current 5 Turn the A C POWER switch OFF disconnect the short circuit and connect the load 6 Turn A C POWER switch ON again and adjust the required operating current by means of the BIPOLAR CURRENT CONTROL as required NOTE the output current or output voltage exceeds the programmed limit values at any time the l MODE light will go OFF and the corresponding limit light CURRENT LIMIT LIGHT for current limit or VOLTAGE LIMIT LIGHT for voltage limit will go ON By removing the limit condition decreasing the output current for current limit or decreasing the value of the load for voltage limit the unit will return to the current mode of operation and the lights will be reset to the initial status BOP OPERATION WITH REMOTE CONTROL OF THE VOLTAGE CONTROL CHANNEL As described in a previous paragraph PAR 3 2 1 the BOP d c output potential can be con trolled within its specified range by means of the BIPOLAR VOLTAGE CONTROL with the BIPOLAR VOLTAGE CONTROL SWITCH in the ON position Since the PRE AMP with the built in feedback and input resistors has a gain of one and the Eg BIPOLAR AMPS have respective gains of 50 BOP 500M and 100 BOP 1000M a d c input signal of zero to 10V will control th
9. to the maximum positive output voltage of the BOP Turn A C POWER SWITCH 1 OFF Connect a short circuit between the t OUTPUT and the COMMON front panel output ter minals 3 Set the BOP front panel controls as follows 1 MODE SWITCH 4 set to CURRENT 2 BIPOLAR CURRENT CONTROL 16 set switch to ON control to its maximum counterclockwise position 3 A C POWER switch ON The indicator lamp part of the A C POWER switch 1 will be ON the OUTPUT READY LAMP 2 and the lj MODE lamp 18 will be ON 2 5 H on BIPOLAR CURRENT CONTROL 16 clockwise through its range while observing the front panel lj METER 17 The BOP output current should smoothly follow from the maximum negative output current over zero to the maximum positive output current of the BOP Turn A C POWER switch 1 OFF Remove the short circuit from the output termi nals THIS CONCLUDES THE PRELIMINARY CHECK OUT OF THE BOP 2 6 INSTALLATION Refer to FIG 2 5 The BOP is delivered with mounted SLIDE SUPPORT BRACKETS and MOUNTING FLANGES and ready for installation into any standard 19 inch instrument rack Please refer to PAR 2 4 COOLING if the BOP is to be mounted into a multiple rack installation r L e 0 i A 77 x JACK MO ACCESSORIES PAR 5 RACK MOUNTING ACCESSORIES PART LIS INSTRUCTIONS FOR SLIDE INSTALLATION TEM DESCRIPTION 1 ITEMS 1 2 3 ARE
10. 3 5 BASIC 2 WIRE LOAD CONNECTION AND GROUNDING CONNECTIONS BETWEEN THE BOP AND THE LOAD BOPHV112211 LOAD CONNECTION 1 The recommended load connection for all applications requiring minimum load effect across a remote load is shown in FIG 3 6 A twisted shielded pair of wires AWG No 20 minimum is connected from the BOP sensing terminals to the load This remote error sensing technique will compensate for load wire voltage drops up to 0 5 volts per wire NOTE OBSERVE POLARITIES THE COMMON SENSING WIRES MUST GO TO THE COMMON LOAD WIRE THE OUTPUT SENSING WIRE MUST GO TO THE OUTPUT LOAD WIRE ALTERNATE SIGNAL FIGURE 3 6 LOAD CONNECTION WITH ERROR SENSING AND GROUNDING CONNECTIONS BOPHV112211 D BETWEEN THE BOP AND THE LOAD i WARNING A C SAFETV GROUND Refer to FIG s 3 5 3 6 The dangerous voltages present in this equipment make it imperative that the case be kept at ground potential at all times It is suf ficient to use a 3 wire line cord with 3 prong safety plug supplied with this equipment in combination with a properly grounded outlet If an adapter for a non grounded outlet is used however the case must be grounded separately A separate GROUND terminal is provided for this purpose on the rear of the BOP See Section 2 FIG 2 2 DC SIGNAL GROUND Refer to FIG s 3 5 3 6 Specified ripple and noise figures for operational power supplies are valid only with the common side of the
11. BANANA PLUGS WITH EXPOSED SCREWS OR OTHER EXPOSED METAL PARTS AT THE FRONT PANEL OUTPUT TERMINALS The BOP chassis and cover must be safety grounded to a reliable a c source ground A safety ground may be established by using a grounded a c power outlet or if the lat ter is not available by means of a separate wire from a provided ground terminal to a reliable a c source ground point THE COMMON OUTPUT TERMINAL OF THE BOP SHOULD BE SIGNAL GROUNDED If for any reason grounding of the output is not possible additional pre cautions must be taken to make any access to the isolated output impossible FOR ALL CONTROL ADJUSTMENTS ON THE BOP USE ONLY THE INSULATED TOOL WHICH IS ATTACHED AT THE REAR See Section 2 FIG 2 2 3 1 A DIAGRAMS Application and test set up diagrams on the following pages show the sym bolic and simplified representation of the BOP circuitry in four 4 separate diagrams as indicated on FIGS 3 1 through 3 4 The diagrams represent the four programmable cir cuits of the BOP 1 Voltage Control Channel FIG 3 1 2 Current Control Channel FIG 3 2 3 Eo Limit Circuits FIG 3 3 4 lo Limit Circuits FIG 3 4 The complete simplified diagram is represented at the beginning of Section 4 see FIG 4 1 THE FOUR CIRCUITS CAN BE PROGRAMMED SEPARATELY AS DESCRIBED IN THE EXAMPLES IN THIS SECTION OR THEY CAN BE USED SIMULTANEOUSLY AS AN APPLICATION REQUIRES WITH THE EXCEPTION OF THE TWO 2 MAIN B
12. INSTALLED AT THE FACTORY 2 ITEM 3 SLIDE SUPPORT BRACKET IS PRE DRILLED AND TAPPED 1 MOUNTING FLANGE LEFT 1 OR JONATHAN SLIDES SERIES 110 QD REMOVE THE THREE BINDING HEAD 2 MOUNTING FLANGE RIGHT SCREWS ON EACH SIDE OF ITEM 3 THESE SCREWS ARE PART OF ITEM 5 3 SLIDE SUPPORT BRACKET 2 3 LINE UP SLIDE WITH ITEM 3 AND RE INSERT THE BINDING HEAD SUDES HU db SCREWS THROUGH THE APPROPRIATE MOUNTING HOLES IN THE SLIDE SLIDES 110 5 JONATHAN SERIES d 4 IF JONATHAN SLIDE 110 QD 24 1 IS USED AN ADDITIONAL HOLE MUST B D SLIDE SEE FIG 1 3 FO FORMAT IET 20 BE DRILLED INTO THE SLIDE SEE FIG 1 3 FOR FURTHER INFORMATION 6 10 32 SCR FLAT HD 82 6 NOTES ITEM 4 NOT SUPPLIED NOTE IF SLIDE INSTALLATION AS DESCRIBED ABOVE IS NOT DESIRED OTHER MEANS OF SUPPORTING THE UNIT IN THE REAR MUST BE PROVIDED ADDITIONAL REAR BRACKETS OR SOLID PLATFORM FOR EXAMPLE SINCE THE FRONT MOUNTING FLANGES ITEMS 1 2 ALONE ARE NOT SUFFICIEN O SUPPORT THE FULL WEIGHT OF THE UNIT FIGURE 2 5 RACK INSTALLATION OF THE BOP BOPHV 112211 3 1 BOPHV112211 SECTION 3 OPERATION INTRODUCTION BOP BIPOLAR OPERATIONAL POWER SUPPLIES can be used in a great variety of applica tions As a PRECISION VOLTAGE or CURRENT SOURCE the BOP output can be controlled locally by means of the front panel BIPOLAR voltage and current controls or remotely by means of resistances or by voltage signals Independently adjustable or remotely pro
13. four lights also go out after the protection circuit has been energized L STANDARDS BOP models are designed and tested in accordance with NEMA Standard for Stabilized Power Supplies d c output Publication No PY 1 1972 MECHANICAL SPECIFICATIONS A DIMENSIONS See Mechanical Outline Drawing FIG 1 4 B FINISH See Mechanical Outline Drawing FIG 1 4 C FRONT PANEL METERS M Suffix 2 1 2 inches wide recessed Accuracy 2 full scale Two 2 zero center analog meters monitoring the d c voltage and the d c current are provided DM suffix Analog meters are replaced by digital panel meters 3 1 2 digits 200mV full scale power requirements 5V 5 BOPHV112211 1 7 ACCESSORIES A BOPHV112211 MOUNTING FLANGES for installation of the BOP into a standard 19 inch equipment rack refer to Section 2 FIG 2 5 A pair included with each BOP Kepco Part No 128 1282 right 128 1281 left REAR PROGRAMMING CONNECTOR Kepco Model PC 9 30 terminal printed circuit connector for all rear programming connections and flag signal outputs One included with each BOP 1 7 OOO ooo 200 ana 090 i Bt OO 00 OO 00 DD
14. output load circuit returned to a common ground point refer to Section 1 Table 1 2 The common side of the BOP output is shown grounded in FIG s 3 5 and 3 6 since it is common to both internal reference source and any external signal source If the application requires the common side of the BOP may be floated up to 500V d c off ground In this case however the com mon mode current specified in Section 1 PAR 1 3E will flow through the impedance of whatever circuit is placed between common and ground and will give rise to a common mode voltage The signal ground point in the BOP load circuit must consist of a single point 3 5 3 6 only to which all input source grounds shields and load grounds are connected Multiple signal grounds in the BOP output load circuit may cause ground loop problems since noise signals develop across the impedance between the multiple ground points The exact physical location of the best single ground must be carefully selected for minimum ripple noise output EXTERNAL PROGRAMMING RESISTORS External programming resistors should be components with low temperature coefficients Resistors should be selected carefully since in most applications the limitations for stability and drift are due not to the BOP but to the programming resistors Selection criteria for resistors are TEMPERATURE COEFFICIENT 2 LEAKAGE IN VALUES ABOVE 100k OHM 3 HUMIDITY EFFECTS 4 DRIFT WI
15. stage permits operation as either a SOURCE OR A SINK See FIG 1 2 NOTE Operation in the second and fourth quadrants of the graph shown in FIG 1 2 must be derated as indicated FIGURE 1 2 BOP OUTPUT CHARACTERISTIC BOPHV112211 NOTE The BOP is operating as a SOURCE if the direction of its output voltage is the same as the direction of its output current The BOP is operating as a SINK if the direction of its output voltage is opposite that of its output current An illustrative case is shown in FIG 1 3 where the BOP is programmed to deliver a sine wave output and where the load produces a phase shift between the output voltage and current FIGURE 1 3 BOP OUTPUT WAVEFORM WITH PHASE SHIFT B REFERENCES Two reference bias sources 10V 1 mA MAX are provided for control and biasing purposes These reference sources are available at the rear programming con nector with reference to the COMMON terminal Their specifications are tabulated in Table 1 2 C OFFSET NULLING Controls are provided to zero the initial offsets lio of both the volt age and current control preamplifiers D LOAD REACTANCE To realize the full high speed potential of the BOP the load charac teristics should be mainly resistive Load capacitance and inductance up to 0 01uF and 0 5 mHy respectively can be tolerated without performance deterioration CAUTION Stable operation into a purely inductive load in the Cur
16. the voltage limits s svommoeuur i 11 0 TO 500 0 TO 1000V 9 50 INPUT Programming input terminals for voltage pre amp 10 BIPOLAR VOLTAGE CONTROL for manual adjustment of the BOP d c 11 Eo METER d c output voltmeter reads also average a c signals 12 50 MODE LED lamp indicating voltage mode operation 13 CURRENT LIMIT LED lamp indicating current limiting operation Controls for manual adjustment of the current limits 14 CURRENT LIMIT earn 0 Em B 0 to 80mA 0 to 40mA 15 INPUT Programming input terminals for current pre amp 16 BIPOLAR CURRENT CONTROL Mp CUm ERR SUE for manual adjustment of the BOP d c 17 lo METER d c output ammeter reads also average a c signals 18 lo MODE LED lamp indicating current mode operation 19 FUSE a c power fuse Protects primary a c input circuit 20 a c power input jack Accepts 3 wire line cord supplied 21 Cable holder accepts output sensing and ground wires for feed through from terminals through safety cover 22 REAR TERMINALS Rear barrier strip with output sensing and ground terminals 23 INTERLOCK Shuts off BOP if safety cover is removed Can be defeated by a forward pull 24 INT lox CONTROL R303 compensation adjustment See Section 5 25 REAR CONNECTOR Access to internal circuitry for programming connections 26 INT CONTROLS R31 R36 Current and voltage pre amp zero controls 27 INSULATED TOOL Use this tool for all internal adjustments BOPHV 112211 2 3
17. 11 GRAPHS OF POSSIBLE BOP INPUT OUTPUT WAVESHAPES NOTE The phase shift between the input and output signals of the BOP unit working as an amplifier is 0 in the non inverting configuration inherent 180 in the inverting con figuration This is only for input signal frequencies smaller than 1 10 of the 3dB band width frequency listed in Section 1 Table 1 3 The basic programming circuit with which all the waveforms shown in FIG 3 11 can be pro duced is shown in FIG 3 12 Since all input signals in FIG 3 11 are shown with a 10 volt ampli 3 12 BOPHV112211 tude the basic programming circuit in FIG 3 12 must be modified if the external signal source cannot produce 10 volts and if the full BOP output voltage swing is required me V FIGURE 3 12 BASIC PROGRAMMING CIRCUIT FOR USE OF THE BOP ASA BIPOLAR AMPLIFIER VOLTAGE MODE If the EXT PROGRAMMING SOURCE does not have sufficient amplitude to drive the BOP over its full output range the gain of the PRE AMP must be changed from the built in 1V per volt value to suit the application To calculate the required components for the new gain require ment the output equation for the PRE AMP in the inverting configuration is used EO PRE AMP Ei Rf Ri where PRE AMP 10V and the values of Rf and Ri depend on the available amplitude of the programming source If for example a 1 volt source is available the ratio Rf Ri m
18. 5mH 100 0 3pF BOP 1000M 1000 TO 1000 40 TO 40 0 2 50mH 400 0 4 TABLE 1 2 OUTPUT EFFECTS OFFSETS AND REFERENCE SPECIFICATIONS 1 PRE AMPLIFIER OUTPUT EFFECTS OFFSETS INFLUENCE QUANTITY REFERENCES VOLTAGE CURRENT AE Al MODE MODE SOURCE 105 125 210 250Va c lt 0 0005 0 000594 9 S5UV 4 1nA 0 000595 LOAD No Load full load 0 000596 0 00596 _ 2 0 000596 TIME 8 hour drift lt 0 01 lt 0 01 220uv 4 1nA 0 00596 TEMPERATURE Per C 0 0196 0 0195 20v 1nA 0 00596 UNPROGRAMMED OUTPUT DEVIATION 2 rms lt 10 mV lt 25 lt 10uV Ripple and Noise p p 200 mv 9 500 0 A lt 100uV 1 Specifications are expressed as a percentage of the nominal power supply output either voltage or current for either BOP 500M or BOP 1000M 2 Common terminal grounded so that the common mode current does not flow through the load 3 20 Hz to 10 MHz 4 For frequency components in the bandwidth of the current stabilizer Beyond cutoff noise will appear as a voltage component equal to the rated voltage mode noise 5 Or 0 2 mA whichever is greater 1 2 BOPHV112211 NOTE In this instruction manual Kepco will follow the NEMA standards for d c Power Supplies and speak of the Output Effects caused by changes in the Influence Quantities The Output Effects are specified either as a
19. Ere Gave totes e ie epos 3 19 Local Front Panel Control of the BOP Current Limit nee ners 3 20 Symmetrical Remote Control of the BOP Current Limits sse nnennnnnn res ran ners renta 3 20 Independent Remote Control of the BOP lo and Ig Limits 3 21 Local Front Panel Control of the BOP Voltage Limit Circuits sse 3 21 Symmetrical Remote Control of the BOP Voltage Limit Circuit 3 22 Independent Remote Control of the BOP Voltage Limit Circuits es nn enn nn nna 3 22 BOP1000SVC 112211 BOP1000SVC112211 1 Output Ranges and Impedance 2 Output Effects Offsets and Reference Specifications 3 Dynamic Specifications 1 Internal Calibration Controls 2 BOP Terminations and Controls LIST OF TABLES FIGURE 1 1 BOP HIGH VOLTAGE OPERATIONAL POWER SUPPLY BOPSVC112211 1407 1108 1 1 1 2 1 3 BOPHV112211 SECTION 1 INTRODUCTION SCOPE OF MANUAL This manual contains instructions for the installation and operation of the Models BOP 500M BOP 500DM BOP 1000M and BOP 1000DM Bipolar Operation Power Supplies manufactured by Kepco Inc Flushing New York U S A GENERAL DESCRIPTION The Kepco Model BOP 500M and BOP 1000M are high voltage power sources which combine the capabilities of fast programmable power supplies with a Class A output stage which can respond bidir
20. IPOLAR VOLTAGE AND CURRENT CHANNELS WHICH ARE SELECTED BY THE FRONT PANEL MODE SWITCH AND CANNOT BE OPERATED SIMULTANEOUSLY The numbered terminals in the diagrams correspond to the connector terminals on the REAR PROGRAMMING CONNECTOR NOTE BOP s have front and rear output terminals Only the front terminals are shown on all subsequent simplified diagrams FIGURE 3 1 BOP VOLTAGE CONTROL CHANNEL BOPHV112211 Q 4 FIGURE 3 2 BOP CURRENT CONTROL CHANNEL e e 4 s A e FIGURE 3 3 BOP VOLTAGE LIMITING CIRCUIT BOPHV112211 3 3 FIGURE 3 4 BOP CURRENT LIMITING CIRCUIT B LOAD CONNECTION l The basic interconnection between the BOP and the load are shown in FIG 3 5 The load wire size for the 2 wire connection shown should be as large as practicable to keep the series resistance and inductance low In addition the load wire pair should be tightly twisted to reduce possible pick up from stray magnetic fields The basic 2 wire connection is useful where the voltage drop in the load wires is of minor con sequence as for example operation into a constant load or in a constant current operating mode TO GROUNDED TO GROUNDED AC POWER AC POWER OUTLET BOP REAR VIEW f A 57 la LOAD ALTERNATE LOAD SIGNAL GROUND ALTERNATE SIGNAL GROUND A REAR CONNECTION 3 FRONT CONNECTION 3041023 FIGURE
21. OPERATOR S MANUAL HIGH VOLTAGE BIPOLAR POWER SUPPLY 6 KEPCO INC MODEL 500M 500DM BOP 1000M BOP 1000DM POWER SUPPLY IMPORTANT NOTES 1 This manual is valid for the following Model and associated serial numbers MODEL SERIAL NO REV NO 2 A Change Page may be included at the end of the manual All applicable changes and revision number changes are documented with reference to the equipment serial num bers Before using this Instruction Manual check your equipment serial number to identify your model If in doubt contact your nearest Kepco Representative or the Kepco Docu mentation Office in New York 718 461 7000 requesting the correct revision for your particular model and serial number 3 The contents of this manual are protected by copyright Reproduction of any part can be made only with the specific written permission of Kepco Inc Data subject to change without notice 69 KEPCO P N 228 1733 b THE POWER SUPPLIER KEPCO INC 131 38 SANFORD AVENUE FLUSHING NY 11355 U S A TEL 718 461 7000 FAX 718 767 1102 email hq Qkepcopower com World Wide Web http www kepcopower com OPERATOR SAFETY INSTRUCTIONS Read these safety instructions as well as the applicable installation and operating instructions contained in this manual before using the power supply WARNING Do not touch the output terminals The high voltage output is dangerous El
22. T SENSING RESISTOR BOP 500M 12 50 BOP 1000M 2502 Alo TOTAL OUTPUT CURRENT CHANGE CLOSED Loop GAIN BOP 500M 50 1000M 100 WHERE AEQ TOTAL OUTPUT VOLTAGE CHANGE AE ef CHANGE IN THE VOLTAGE REFERENCE CHANGE IN OFFSET VOLTAGE Alig CHANGE IN OFFSET CURRENT Rf EXTERNAL FEEDBACK RESISTOR Ri EXTERNAL INPUT RESISTOR NOTE Variations in the value of the feedback and input resistors are considered secondary effects in the Error Equation BOPHV112211 1 3 E DYNAMICS The dynamic response of the BOP output are tabulated in Table 1 3 in both the time domain Output response to a step program and in the frequency domain band width for large and small signals TABLE 1 3 DYNAMIC SPECIFICATIONS VOLTAGE CHANNEL CURRENT CHANNEL DYNAMIC SPECIFICATIONS BOP 500M BOP 1000M BOP 500M BOP 1000M Closed Loop Gain 50 V V 100 V V 8 mA V 4 mA V Bandwidth d c to f 3 dB 5 3 KHz 1 8 KHz 2 0 KHz 1 5 KHz Programming Time Constant 30 88 80 usec 106 usec Large Signal Frequency Response 6 KHz 1 9 KHz 2 5 KHz 1 6 KHz Slewing Rate 18V usec 12V usec 1 25 0 4 mA usec Load Recovery Time Constant 25 usec 75 usec 25 usec 50 usec 1 5 MISCELLANEOUS FEATURES A OUTPUT RANGE The BOP can be locally front panel adjusted or remotely programmed from 100 to 100 of its specified d c voltage and current range The Class A bipolar output
23. TH TIME 5 SELF HEATING POWER DISSIPATION O TOLERANCE For variable resistors potentiometers or rheostats similar selection criteria apply In addi tion such specifications as listed below should be carefully considered if the application requires 1 END RESISTANCE 2 LINEARITY 3 CAPACITIVE AND INDUCTIVE EFFECTS ACTIVE PROGRAMMING SOURCES External programming sources Signal Generators etc or reference sources should have temperature coefficients and drift specifications comparable to or better than the BOP Power Supply CAUTION A C source operated programming sources must have their output isolated J from the case EXTERNAL LEADS Shielded preferably twisted lead pairs are recommended for all input connections to the BOP control channels The shield should be connected single ended to the chosen signal ground point Shielded leads should be held as short as practicable Output leads must be high voltage wire rated at least for the maximum BOP output volt age and current BEFORE USING THE BOP IN ANY APPLICATION PLEASE REFER TO SECTION 2 TO GET ACQUAINTED WITH THE OPERATING CONTROLS AND THE A C POWER REQUIREMENTS REFER TO THIS SECTION SECTION 3 FOR INFORMATION ON LOAD CONNECTIONS AND GROUNDING READ THE WARNING NOTES PRIOR TO PAR 3 1A BOPHV112211 3 2 3 2 1 3 2 2 BOPHV112211 BOP OPERATION WITH LOCAL FRONT PANEL OUTPUT CONTROL VOLTAGE MODE OPERATION WITH CURRENT LIMITING
24. TROL AMPS Both control amplifiers operate in the inverting configuration and produce the control potential according to the output equation Eref E control Ri Rf Since Rf is adjustable the control voltage EcoNTRoL can be varied from zero to 10V and 10V respectively thus providing output current limit control over the full range of the BOP 3 19 FIGURE 3 23 LOCAL FRONT PANEL CONTROL OF THE BOP CURRENT LIMIT CIRCUITS The BOP current limits can be remotely controlled by disconnecting the fixed reference poten tial setting the front panel controls to their maximum clockwise position and substituting a vari able 0 to 10 volt reference potential The two limits may be controlled simultaneously and symmetrically or separately The necessary connections are shown in FIG s 3 24 and 3 25 respectively FIGURE 3 24 SYMMETRICAL REMOTE CONTROL OF THE BOP CURRENT LIMITS 3 20 BOPHV112211 FIGURE 3 25 INDEPENDENT REMOTE CONTROL OF THE BOP lo AND lo LIMITS 3 4 3 REMOTE CONTROL OF THE BOP VOLTAGE LIMIT The BOP Eg LIMIT CIRCUIT in the local front panel control mode is shown in FIG 3 26 The circuit functions in the same manner as the l LIMIT CIRCUIT described previously refer to PAR 3 4 2 and can be remotely controlled symmetrically with a 0 to 10V d c source or the and voltage limit can be controlled independently by in
25. ailable at the rear programming connector for remote control of the output cur rent Control methods are described in Section 3 of this manual J BOUNDING refer to Section 3 FIG 3 3 and 3 4 The BOP has four adjustable output voltage current limiting circuits Eg LIMIT Eo LIMIT lo LIMIT Ig LIMIT for overvoltage overcurrent protection in either operating mode All limiting circuits can be screwdriver adjusted by means of four front panel controls In addition all four limits can be remotely controlled by means of 0 to 10 volts d c control voltages The four limits may be programmed independently or the voltage and current limits can be controlled in pairs The adjustable programmable limit controls are backed up by non adjustable limit circuits which define the four boundaries Eg MAX and l MAX of the BOP and provide protection against accidental overprogramming of the adjustable limits K MODE LIGHTS AND FLAG SIGNAL OUTPUT Four 4 front panel LED type indicator lamps monitor the prevailing operating mode of the BOP In addition four 4 corresponding flag signal outputs are provided at the rear programming connector For each operating condition VOLTAGE MODE CURRENT MODE Eo LIMIT LIMIT the corresponding indicator lamp lights up and the associated flag signal changes its state from TTL logic 1 to 0 NOTE If operating against back up current limit PAR J all 4 lights go out The
26. cal front panel control mode the BOP output current can be controlled by means of the BIPOLAR CURRENT CONTROL with the BIPOLAR CURRENT CONTROL SWITCH closed and the MODE SWITCH the CURRENT position over the full output range The control potential zero to 10V is applied to the g PRE AMP operating with unity gain to the BIPOLAR AMP which drives the BIPOLAR OUTPUT STAGE with a fixed gain of 8mA per volt BOP 500M and 4 mA per volt BOP 1000M respectively A d c control signal from zero to 10 volts will therefore control the BOP output current through its specified range refer to FIG 3 15 n BOPHV112211 Ln NS FIGURE 3 14 PROGRAMMING CIRCUIT FOR DRIVING THE BOP OUTPUT VOLTAGE WITH A HIGH IMPEDANCE SOURCE USING THE NON INVERTING INPUT OF THE PRE AMPLIFIER mio E FIGURE 3 15 LOCAL FRONT PANEL CONTROL OF THE BOP OUTPUT CURRENT WITH THE BIPOLAR CURRENT CONTROL 3 4 1 REMOTE CONTROL OF THE BOP CURRENT CHANNEL Since the requirements for the control of the BOP output current are the same as for program ming the output voltage and since the control circuitry is almost identical all programming cir cuit descriptions for programming the output voltage of the BOP can be applied for current BOPHV112211 3 15 programming The current programming circuits are illustrated in FIGs 3 16 to 3 22 Any excep tions with respect to current channel programming are noted on t
27. dividual 0 to 10V d c sources The necessary circuit connections are illustrated in FIG s 3 27 and 3 28 NOTE The front panel VOLTAGE LIMIT CONTROLS serve as a back up when remote controlling the voltage limits on the BOP The front panel VOLTAGE LIMIT CONTROLS should be set to their maximum posi tions if full range remote control of the BOP voltage limits is desired FIGURE 3 26 LOCAL FRONT PANEL CONTROL OF THE BOP VOLTAGE LIMIT CIRCUITS BOPHV112211 3 21 ha FIGURE 3 27 SYMMETRICAL REMOTE CONTROL OF THE BOP VOLTAGE LIMIT CIRCUIT FIGURE 3 28 INDEPENDENT REMOTE CONTROL OF THE BOP VOLTAGE LIMIT CIRCUITS 3 22 BOPHV112211
28. e BOP output through its specified range In the local front panel control mode the d c control potential is applied via the BIPOLAR VOLTAGE CONTROL REMOTE D C OUTPUT VOLTAGE CONTROL BY RESISTANCE A As shown in FIG 3 7 this control method can be performed remotely by setting the BIPO LAR VOLTAGE CONTROL SWITCH to the OFF position and by connecting a 10K ohm external resistor and a 20K ohm external potentiometer as shown in Figure 3 7 By adjusting the remote external potentiometer the BOP unit will receive an input voltage signal ranging from 10 to 10 Volts that corresponds to a generated output voltage rang ing from Eomax to FEomax B Two terminal resistance control of the d c output voltage for example by means of a Decade Box can be exercised as shown in FIG 3 8 The external switch S1 connected across the reference voltage is used to pre select either positive or negative output by setting it to the applicable reference voltage polarity The PRE AMP functions here as an inverter Its output can be expressed by the equa tion 2 Rf EG PRE AMP FREF gi Rf External Decade Resistor Ri External Input Resistor BOPHV112211 Since Eref is either or 10 volts depending on the position of S1 and the gain ratio Rf Ri is variable from zero to one the output voltage Eg PRE AMP will be inverted and vary linearly from 10 volts through zero to 10 volts with the change in th
29. e decade resistance Rf As a consequence the BOP output voltage will also vary linearly with the change in decade resistance Inversion provided by the final output stage means that the BOP output voltage will be the same polarity as Eref EXT E d EXT JREMO T FIGURE 3 7 REMOTE POTENTIOMETER CONTROL OF THE BOP D C OUTPUT VOLTAGE EXT om gt lt tu FIGURE 3 8 REMOTE D C OUTPUT VOLTAGE CONTROL BY MEANS OF A TWO TERMINAL RESISTANCE DECADE BOPHV112211 3 9 3 3 2 C This system can be calibrated to zero very accurately For every configuration in which the BOP is used before checking or adjusting zero output make sure that the input of the BOP voltage channel is short circuited to the signal ground This can be done by connect ing together the front panel voltage channel input binding posts and the signal ground com mon when the BOP is used as it is or by connecting the signal ground common to the external voltage channel input when other external configurations for the pre amplifier are used With zero voltage applied at the input use a precision voltmeter to check for zero volts at the output If output is not zero volts adjust Eg ZERO REMOTE D C VOLTAGE CONTROL BY MEANS OF D C SIGNAL VOLTAGE The BOP d c output voltage can be controlled directly by a 10V d c signal applied to the front panel Eg PROGRAM INPUT terminals An interesting exam
30. ectionally from zero Models with the DM suffix are similar to M suffix models except that the analog front panel meters are replaced by digital meters The BOP can be operated in a Voltage Stabilizing or Current Stabilizing operating mode selectable by a front panel switch The BOP incorporates two separate control channels for local front panel or remote control of the output current and the output voltage In addition bounding currents for bipolar voltage and current limiting are provided which may be adjusted manually by front panel controls or can be remotely programmed All control and bounding channels are connected to the bipolar Class A output stage via an EXCLUSIVE OR gate so that only one circuit is in control of the BOP output at any one time Some applications are listed below A VOLTAGE MODE OPERATION Current limiting either front panel adjusted or remotely programmed using the current limiting channel 1 High speed bipolar d c voltage source remote or locally controlled output 2 Scaling or summing amplifier with or without d c bias B CURRENT MODE OPERATION Voltage limiting either front panel adjusted or remotely programmed using the voltage limiting channel 1 High speed bipolar d c current source remote or locally controlled output 2 Amplification of a c currents with or without d c bias The main chassis of the Model BOP Operational Power Supply Amplifier is constructed of plated s
31. ectric shock can cause injury or death Do not remove the cover or disassemble the unit There are no operator serviceable components or adjustments inside the unit High voltage components inside the unit can cause serious injury even with input power disconnected Service must be referred to authorized personnel Using the power supply in a manner not specified by Kepco Inc may impair the protection provided by the power supply Observe all safety precautions noted throughout this manual The following table lists symbols used on the power supply or in this manual where applicable SAFETY SYMBOLS SYMBOL Meaning WARNING RISK OF ELECTRIC SHOCK INDICATES THE POSSIBILITY OF BODILY INJURY OR DEATH INDICATES THE POSSIBILITY OF EQUIPMENT DAMAGE 1 CAUTION REFER TO REFERENCED PROCEDURE CAUTION If this power supply is used in OEM equipment the OEM equipment manufacturer is responsible for attaching appropriate warning labels on the OEM equipment Operating the power supply outside the specified limits for input voltage temperature or other environ mental conditions noted in this manual can damage the power supply and void the warranty Safety Messages The BOP HV protection circuit is designed to protect the load against unregulated high voltages Upon sensing a high temperature signal the protection circuit shuts down the output stage before the overtem perature can destroy the transistors In add
32. employs a supplementary circuit protector in the form of a circuit breaker mounted on the front panel This circuit breaker protects the power supply itself from damage in the event of a fault condition For complete circuit protection of the end product as well as the building wiring it is required that a primary circuit protection device be fitted to the branch circuit wiring EN61010 1 CI 9 6 2 Hazardous voltages are present within this power supply during normal operation All operator adjust ments to the product are made via externally accessible switches controls and signal lines as speci fied within the product operating instructions There are no user or operator serviceable parts within the product enclosure Refer all servicing to qualified and trained Kepco service technicians 228 1351 COND CONFORM 112211 SAFETY INSTRUCTIONS 1 Installation Operation and Service Precautions This product is designed for use in accordance with EN 61010 1 and UL 3101 for Installation Category 2 Pollution Degree 2 Hazardous voltages are present within this product during normal operation The prod uct should never be operated with the cover removed unless equivalent protection of the operator from accidental contact with hazardous internal voltages is provided There are no operator serviceable parts or adjustments within the product enclosure Refer all servicing to trained service technician Source power must be removed from the product p
33. ge Directive 73 23 EEC this power supply is considered a component product designed for built in applications Because it is incom plete in construction the end product enclosure must provide for compliance to any remaining electri cal safety requirements and act as a fire enclosure EN61010 1 CI 6 Cl 7 CI 8 CI 9 and EN61010 1 annex F This power supply is designed for stationary installation with mains power applied via a detachable power supply cord or via direct wiring to the source power terminal block This power supply is considered a Class 1 earthed product and as such depends upon proper con nection to protective earth for safety from electric shock EN61010 1 CI 6 5 4 This power supply is intended for use as part of equipment meant for test measurement and labora tory use and is designed to operate from single phase three wire power systems This equipment must be installed within a suitably wired equipment rack utilizing a three wire grounded mains con nection See wiring section of this manual for complete electrical wiring instructions EN61010 1 CI 6 5 4 and 6 10 1 This power supplv has secondarv output circuits that are considered hazardous and which exceed 240 VA at a potential of 2V or more The output wiring terminals of this power supply have not been evaluated for field wiring and there fore must be properly configured by the end product manufacturer prior to use This power supply
34. gramma ble limit circuits for both output voltage and output current protect a sensitive load from any overvoltage or overcurrent As a BIPOLAR AMPLIFIER the BOP output responds to such input signals as sine square or triangular waves A 10 volt input signal will program the BOP out put voltage or current through its rated output ranges Built in preamplifiers for the voltage as well as the current channel of the BOP permit amplification of the control signals to the required amplitude and the interface with high as well as low impedance signal sources Detailed examples of the more popular applications are described in the following paragraphs Before actual operation however the following general comments on the operation of the BOP should be carefully considered WARNING THIS EQUIPMENT IS CAPABLE OF PRODUCING LETHAL VOLTAGES Exercise extreme care in making all connections to and from the BOP terminals REMOVE A C POWER FROM THE BOP BEFORE MAKING ANY CONNECTIONS An interlock device removes the A C source power from the BOP if the rear terminal cover plate if lifted DO NOT BVPASS THE INTERLOCK Wires and or cables connected from the BOP terminals to external components or programming devices must be properly insulated and securely terminated on both sides to avoid accidental contact A feed through hole is provided on the BOP rear ter minal cover to bring the wires from the BOP rear terminals to the outside DO NOT USE
35. he diagrams NOTE Adjust the zero output current point by means of the built in Ig ZERO control Make sure that the input of the BOP current channel is short circuited to the ground signal FIGURE 3 16 REMOTE POTENTIOMETER CONTROL OF THE BOP OUTPUT CURRENT EXT FIGURE 3 17 REMOTE OUTPUT CURRENT CONTROL BY MEANS OF A TWO TERMINAL RESISTANCE 3 16 BOPHV112211 d CONTROL ZHANN FIGURE 3 18 DIGITAL CONTROL OF THE BOP OUTPUT CURRENT CHANN FIGURE 3 19 BOP OUTPUT CURRENT CONTROL WITH A HIGH IMPEDANCE 1 VOLT SIGNAL SOURCE BOPHV112211 3 17 35 FIGURE 3 20 BASIC PROGRAMMING CIRCUIT FOR USE OF THE BOP AS A BIPOLAR CURRENT STABILIZED AMPLIFIER EXT N FIGURE 3 21 PROGRAMMING CIRCUIT FOR DRIVING THE BOP OUTPUT CURRENT WITH A BIPOLAR SIGNAL LESS THAN 10V EXAMPLE SHOWN 1V SOURCE 3 18 BOPHV112211 ij Jes n FIGURE 3 22 PROGRAMMING CIRCUIT FOR DRIVING THE BOP OUTPUT CURRENT WITH A 3 4 2 BOPHV112211 HIGH IMPEDANCE SOURCE REMOTE CONTROL OF THE BOP CURRENT LIMIT The BOP Ig LIMIT CIRCUIT in the local front panel control mode is shown in FIG 3 23 10 volt reference voltage is repeated and inverted to obtain two reference voltages 10V and 10V respectively These references are applied at the input of the two Ig LIMIT CON
36. ition to that the protection circuit shuts down the output stage when there is a lapse of AC input power for more than 8 ms This feature is provided so as to avoid an uncontrolled output signal during the shut OFF of the power supply BOP HV 112211 Declaration of Conformity Application of Council directives 73 23 EEC LVD 93 68 EEC CE mark Standard to which Conformity is declared EN61010 1 2001 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 Manufacturer s Name and Address KEPCO INC 131 38 SANFORD AVENUE FLUSHING N Y 11355 USA Importer s Name and Address Type of Equipment Component Power Supply Model No PRODUCT MODEL NUMBER Year of Manufacture 1 the undersigned declare that the product specified above when used in conjunction with the condi tions of conformance set forth in the product instruction manual complies with the requirements of the Low Voltage Directive 73 23 EEC which forms the basis for application of the CE Mark to this product Place KEPCO Inc 131 38 Sanford Ave Flushing N Y 11355 USA Saul Kupferberg Full Name OF SALES position 228 1348 DC COMP INST 112211 Conditions of Conformance When this product is used in applications governed by the requirements of the EEC the following restric tions and conditions apply 1 For European applications requiring compliance to the Low Volta
37. lation is advisable to ascertain whether the BOP has suffered damage in shipment Refer to FIG 2 2 and Table 2 2 FOR THE LOCATION AND DESIGNATION OF THE OPERATION CONTROLS AND TERMI NALS Proceed as follows A Connect the BOP to a 115V a c source or refer to PAR 2 3 for conversion to 230V a c operation if required NOTE THE REAR PROGRAMMING CONNECTOR MUST BE ATTACHED TO THE BOP AND MUST BE WIRED AS SHOWN ON FIG 2 4 BOPHV 112211 FIGURE 2 4 REAR PROGRAMMING CONNECTOR WIRED FOR FRONT PANEL OPERATION B C BOPHV 112211 Note The rear sensing links must be attached to the rear terminals of the BOP as shown in FIG 2 2 and the rear connector must be attached and secured Set the BOP front panel controls as follows refer to FIG 2 2 The controls will be identi fied here and in the following manual text with the nomenclature used in Table 2 2 and identifying numbers used in FIG 2 2 1 MODE switch 4 set to VOLTAGE 2 BIPOLAR VOLTAGE CONTROL 10 set switch to ON control to its extreme coun terclockwise position 3 A C POWER switch to ON The indicator lamp part of the A C POWER switch 1 will be ON The OUTPUT READY lamp 2 AND MODE lamp 12 will also be ON Turn the BIPOLAR VOLTAGE CONTROL 10 clockwise through its range while observing the front panel Eg METER 11 The BOP output voltage should smoothly follow from the maximum negative output voltage over zero
38. mple the BOP d c output voltage is to be controlled by means of a bipolar 1 volt high impedance source it can be connected to the BOP as shown in FIG 3 10 BOPHV112211 FIGURE 3 10 BOP D C OUTPUT VOLTAGE CONTROL WITH A HIGH IMPEDANCE 1V SIGNAL SOURCE As seen in FIG 3 10 the original input feedback components of the PRE AMP have been bypassed and are replaced by external resistors small metal film or wirewound type resistors may be used and connected directly to the REAR PROGRAMMING CONNECTOR terminals as shown The PRE AMP is used in the non inverting configuration Its output voltage the nec essary BOP control voltage is given by 2 5 18K 2K EG PRE AMP Ei OV 10V Consequently as the BIPOLAR INPUT VOLTAGE Ei is controlled from 1V over zero to 1V the BOP output voltage will follow over its specified range from to Calibra tion of the system can be performed at the programming source or the Eg PRE AMP zeroing control can be used for the low end while the feedback resistor Rf 18k can be trimmed to calibrate the high end of the range 3 3 3 THE BOP AS AN AMPLIFIER If instead of the previously used d c control signal an a c signal voltage is applied to the PROGRAM INPUT the BOP functions as a bipolar amplifier As an amplifier the BOP has a voltage gain of 50 BOP 500M and 100 BOP 1000M respectively so tha
39. normal operation Operators must be trained in its use and exercise caution as well as common sense during use to prevent accidental shock This symbol appears adjacent to any external terminals at which hazardous voltage levels as high as 500V d c may exist in the course of normal or single fault condi tions This symbol appears adjacent to any external terminals at which hazardous voltage levels in excess of 500V d c may exist in the course of normal or single fault condi tions gt gt 228 1352 SAFETY COVER REMOVAL 112211 C D BLANK TABLE OF CONTENTS SECTION PAGE SECTION 1 INTRODUCTION 1 1 SCOPE OL Manual e 5 Cm 1 1 1 2 General Description ari ud eoe 1 1 1 3 Electrical Specifications General anna 1 1 1 4 Electrical Specifications Performance nanna rna nanna nn 1 2 1 5 Miscellaneous Features nee Da va 1 4 1 6 Mechanical Specifications 1 6 1 7 You ak 1 7 SECTION 2 INSTALLATION 2 1 Unpacking And INSPOCtiOM pee m 2 1 2 2 Terminations dessein enedes a aa a eda a Ea N SeN Eao ETE Ea E E aA OEE 2 1 2 3 A C Power Input Requirements a iaaa 2 4 2 4 Cooling o E eee era en dee 2 4 2 5 Preliminary CheGkOUt rp ab te dte ente 2 4 2 6 Installation m HX 2 6 SECTION 3 OPERATION 3 1
40. ns 3 12 Basic Programming Circuit for Use of the BOP as a Bipolar Amplifier Voltage nen nennen nennen nennen erret 3 13 Programming Circuit for Driving the BOP Output Voltage with a Bipolar 1V Signal seen enne eem nennen nennen 3 14 Programming Circuit for Driving the BOP Output Voltage with a High Impedance Source Using the Non inverting Input of the Pre amplifier 3 15 Local Front Panel Control of the BOP Output Current with the Bipolar Current Control 3 15 Remote Potentiometer Control of the BOP Output Current sse emnes 3 16 Remote Output Current Control By Means of a Two Terminal 3 16 Digital Control of the BOP Output Current nn 3 17 BOP Output Current Control with a High Impedance 1 Volt Signal 3 17 Basic Programming Circuit for Use of the BOP as a Bipolar Current Stabilized Amplifler 5 ati eet eee iii ee 3 18 Programming Circuit for Driving the BOP Output Current with a Bipolar Signal Less Than 10V Example Shown 1V sss emen 3 18 Programming Circuit for Driving the BOP Output Current with a High Impedance Source 2
41. percentage change referred to the maximum specified output voltage or current lo or as an absolute change AEo Alo directly in millivolts or milliamperes or both The illustration below will clarifv the NEMA terms INFLUENCE QUANTITIES POWER SUPPLY 1 SOURCE UNDER LOAD 2 LOAD EST 2 3 TEMPERATURE 4 TIME 1 DUE TO SOURCE SOURCE ii FORMERLY LINE REGULATION 2 DUE TO LOAD ED OADEFEECHT ija FORMERLY LOAD REGULATION 3 DUE TO TEMPERATURE TEMPERATURE EFFECT COEFFICIENT FORMERLY TEMPERATURE COEFFICIENT 4 DUE TO TIME FORMERLY STABILITY D The BOP output effects in response to the tabulated variation in the INFLUENCE QUAN TITIES are given in Table 1 2 for the built in input and feedback resistor values of the volt age and current channel preamplifiers The tabulated OFFSET values see Table 1 2 may be used to calculate the BOP output effects if the BOP voltage or current channel is remotely programmed and different values for the feedback resistors Rf and the input resistors Ri are used In this case the tabulated preamplifier offsets and the values of the feedback and input resistors are combined in an Error Equation which represents the Worst Case output effect for the application at hand VOLTAGE MODE A G AE 1 Re Rj A lig Rpt A Ered CURRENT MODE A Io 5 56 1 Re R A lig Ret A Ered X Rs CURREN
42. ple of this application is the BOP output voltage control with a Kepco Digital Programmer The connections between the Kepco Digital Programmer and the BOP are illustrated in FIG 3 9 This programming system provides a resolution of 12 bits with a linearity of 0 01 The digital and the power supply grounds are isolated optical isolation to 1000 volts Calibra tion of the system is performed with the controls provided by the Kepco Digital Programmer E FIGURE 3 9 DIGITAL CONTROL OF THE D C OUTPUT VOLTAGE Since all terminals of the PRE AMP are available at the REAR PROGRAMMING CONNEC TOR d c output voltage control can be exercised many other ways The PRE AMP can be treated as an uncommitted operational amplifier with its applicable transfer functions Its initial offsets can be zeroed with the provided ZERO Control while the offset variations are speci fied in Section 1 of this manual refer to Table 1 2 The basic principle of d c output voltage control of the BOP is that a control voltage of 10 volts at 1 mA at the PROGRAM INPUT with the built in feedback input resistors will produce the full d c output voltage swing of the BOP If the selected control signal does not have the required amplitude or if the required control current cannot be supplied the PRE AMP configuration can be altered to provide the proper interface for the application If for exa
43. rent Mode of opera tion requires a minimum series resistance of 25 ohms E SERIES OR PARALLEL OPERATION Not recommended BOPHV112211 1 5 1 6 1 6 F VOLTAGE CONTROL CHANNEL refer to Section 3 FIG 3 1 The BIPOLAR VOLTAGE AMPLIFIER with a fixed gain of 50 BOP 500M or 100 BOP 1000M is connected via the MODE switch to the unity gain VOLTAGE PREAMPLIFIER If the BIPOLAR VOLTAGE SWITCH is on the BOP output voltage can be locally controlled by means of the front panel 10 volt bias source from 100 through zero to 100 of the rated value The VOLTAGE PREAMPLIFIER is provided with a ZERO control and all its terminals are available at the rear programming connector for remote control of the output voltage Con trol methods are described in Section 3 of this manual G MODE SWITCH The BOP is equipped with a front panel mounted MODE SWITCH which selects bipolar voltage or bipolar current control H CURRENT CONTROL CHANNEL refer to Section 3 FIG 3 2 The BIPOLAR CURRENT AMPLIFIER with fixed gain of 8 mA V BOP 500M or 4 mA V BOP 1000 is connected via the MODE switch to the unity gain CURRENT PREAMPLIFIER If the BIPOLAR CUR RENT SWITCH is the BOP output current can be locally front panel controlled by means of the 10 volt bias source from 100 through zero to 100 of the rated value The CURRENT PREAMPLIFIER is provided with a ZERO control and all its termi nals are av
44. rior to performing any servicing This product is factory wired for the nominal a c mains voltage indicated on the rat ing nameplate located adjacent to the source power connection on the product s rear panel To reconfigure the product input for other nominal mains voltages as listed herein the product must be modified by a trained service technician PPP 2 Grounding This product is a Class 1 device which utilizes protective earthing to ensure operator safetv The PROTECTIVE EARTHING CONDUCTOR TERMINAL must be properly con nected prior to application of source power to the product see instructions on instal lation herein in order to ensure safety from electric shock PROTECTIVE EARTHING CONDUCTOR TERMINAL This symbol indicates the point on the product to which the protective earthing conductor must be attached EARTH GROUND TERMINAL This symbol is used to indicate a point which is connected to the PROTECTIVE EARTHING TERMINAL The component installer assembler must ensure that this point is connected to the PROTECTIVE EARTH ING TERMINAL CHASSIS TERMINAL This symbol indicates frame chassis connection which is supplied as a point of convenience for performance purposes see instructions on grounding herein This is not to be confused with the protective earthing point and may not be used in place of it 3 Electric Shock Hazards This product outputs hazardous voltage and energy levels as a function of
45. t as before with the d c control signal a bipolar a c input signal with an amplitude of 20V peak to peak will drive the BOP output through its specified output voltage range All other dynamic specifications are given in Section 1 Table 1 3 The BOP can be used to amplify sum or scale a variety of waveshapes some of which are illus trated in FIG 3 11 All input signals are shown in phase with their corresponding output wave shapes The latter can be readily produced 180 out of phase i e with the output wave taking BOPHV112211 3 11 the exact opposite direction of the input signal by addressing the non inverting input of the Eg PRE AMP instead of the front panel Eg PROGRAM INPUT Inverting input of the PREAMP E MAX 4 Ei 10V Y COMMON 5 BIPOLAR INPUT BIPOLAR BIAS BIPOLAR OUTPUT OFF 10V MAX MAX Eo 4 OLAR Ei UNIPOLAR INPUT Ei BIPOLAR BIAS 10V UNIPOLAR OUTPUT Eo OFF r COMMON v ri OR 1 1 1 AN 1 1 10V DI BIPOLAR BIAS LI 1 1 ON 1 UNIPOLAR OUTPUT Eo 1 b 1 SET BIAS CONTROL TO Eo JEG MAX DC BIAS JEG MAX 1 LJ MAX 4 1 2 Eo MAX BIPOLAR BIAS UNIPOLAR OUTPUT Eo ON EJN E SET TO 1 2 EGMAX COMMON BIPOLAR INPUT 6 OR 5 BIPOLAR BIAS B UNIPOLAR OUTPUT Eo SET TO 1 2 EGMAX 1 2 E MAX MAX FIGURE 3
46. teel The wrap around cover is perforated steel plated and painted in a dark gray tex ture The front panel material is aluminum treated and painted light gray Color 26440 per Fed Std 595 The major part of the circuitry is located on plug in type circuit boards for convenient access ELECTRICAL SPECIFICATIONS GENERAL A INPUT SOURCE REQUIREMENTS 105 to 125Vac or 210 to 250Vac 50 to 65 Hz select able by the SOURCE VOLTAGE SELECTOR SWITCH refer to Section 2 Fig 2 3 Power consumption approximately 250 Watts Power factor 0 8 The primary circuit is protected by a fuse B OPERATING TEMPERATURE RANGE 20 C TO 65 C STORAGE TEMPERATURE RANGE 40 C to 85 C 1 1 COOLING Forced air using a d c fan blowing to the rear of the unit ISOLATION FROM GROUND The BOP circuitry its output and programming terminals have no d c connection to the chassis The COMMON terminal of the BOP can be oper ated up to 500 volts d c or peak a c off ground The common mode current leakage from output to ground is less than 50uA rms or 200uA at 115Vac power input 60 Hz 1 4 ELECTRICAL SPECIFICATIONS PERFORMANCE A OUTPUT RANGES See Table 1 1 B OUTPUT IMPEDANCE See Table 1 1 C OUTPUT EFFECTS See Table 1 2 TABLE 1 1 OUTPUT RANGES AND IMPEDANCE d c OUTPUT OUTPUT IMPEDANCE MODEL RANGE VOLTAGE MODE CURRENT MODE VOLTS mA d c OHMS SERIES L d c OHMS SHUNT C BOP 500M 500 TO 500 80 TO 80 0 050
47. ust be 10 and the two resistor values can be Ri 10K and Rf 100K ohms respectively The built in resistor Ri 10K can be retained and only Rf must be replaced with a 100K metal film 1 2 watt component The necessary connections are illustrated in FIG 3 13 Gain control 0 to 10 can be exercised by making Rf a rheostat instead of a fixed resistor BOPHV112211 3 13 3 4 qe FIGURE 3 13 PROGRAMMING CIRCUIT FOR DRIVING THE BOP OUTPUT VOLTAGE WITH A BIPOLAR 1 SIGNAL The non inverting input of the PRE AMP is used for applications where the external pro gramming source has a high impedance and or cannot supply the necessary 0 1mA drive cur rent or where a negative going output swing is desired for a positive going input signal The necessary connections are illustrated in FIG 3 14 for a PRE AMP GAIN of unity with the built in value for Ri retained and a short across Rf although other gain configurations can be chosen according to the output equation for the non inverting configuration ges Ri where Rf is the external component between pins 14 and F and Ri is the internal component 10K ohms and the following conditions are present the jumpers between pins P and F and between pins J and K are removed and a short circuit is applied across the INPUT program ming terminals BOP OPERATION WITH REMOTE CONTROL OF THE CURRENT CONTROL CHANNEL In the lo

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