KEPCO BOP 5-20DL User manual

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, [phone], requesting the correct revision for your par-
ticular 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.
KEPCO®
THE POWER SUPPLIER™
MODEL
OPERATOR’S MANUAL
KEPCO INC.
ORDER NO. REV. NO.
KEPCO, INC. 131-38 SANFORD AVENUE FLUSHING, NY. 11355 U.S.A. TEL [phone] FAX [phone]
email: [e-mail] World Wide Web: http://www.kepcopower.com
BOP 5-20DL
BIPOLAR OPERATIONAL POWER SUPPLY
100W, 200W AND 400W
BOP 5-20DL
POWER SUPPLY
©2015, KEPCO, INC
P/N 243-1367

BOP 5-20DL 020498 i
TABLE OF CONTENTS
SECTION PAGE
SECTION 1 - INTRODUCTION
1.1 Scope of Manual......................................................................................................................................... 1-1
1.2 General Description.................................................................................................................................... 1-1
1.3 Electrical Specifications, General............................................................................................................... 1-1
1.3.1 Static Specifications................................................................................................................................ 1-5
1.3.2 Dynamic Specifications........................................................................................................................... 1-6
1.4 Miscellaneous Features.............................................................................................................................. 1-6
1.4.1 Output Range.......................................................................................................................................... 1-6
1.4.2 Rear Programming Features................................................................................................................... 1-7
1.4.3 Output ON-OFF Port............................................................................................................................... 1-8
1.4.4 Load Reactance...................................................................................................................................... 1-10
1.4.5 Remote Turn-off...................................................................................................................................... 1-10
1.4.6 Circuit Breaker Shutdown Prevention (at Power Loss) Circuit................................................................ 1-10
1.4.7 References.............................................................................................................................................. 1-10
1.4.8 Series Or Parallel Operation ................................................................................................................... 1-10
1.4.9 Voltage Control Channel......................................................................................................................... 1-11
1.4.10 Mode Switch............................................................................................................................................ 1-11
1.4.11 Current Control Channel ......................................................................................................................... 1-11
1.4.12 Bounding................................................................................................................................................. 1-11
1.4.13 Mode Lights............................................................................................................................................. 1-12
1.4.14 Remote Output ON-OFF LED................................................................................................................. 1-12
1.4.15 Standards................................................................................................................................................ 1-12
1.5 Mechanical Specifications .......................................................................................................................... 1-12
1.6 Equipment Supplied.................................................................................................................................... 1-12
1.7 Accessories ................................................................................................................................................ 1-13
1.8 Safety.......................................................................................................................................................... 1-13
SECTION 2 - INSTALLATION
2.1 Unpacking and Inspection. ......................................................................................................................... 2-1
2.2 Terminations, Controls and Indicators........................................................................................................ 2-1
2.3 A-C Input Requirements ............................................................................................................................. 2-3
2.4 Cooling........................................................................................................................................................ 2-3
2.5 Preliminary Checkout.................................................................................................................................. 2-4
2.6 Installation of Full-rack BOP Models........................................................................................................... 2-6
2.6.1 Slide Installation...................................................................................................................................... 2-6
2.7 Load Connection......................................................................................................................................... 2-7
2.7.1 Load Connection, Local Sensing............................................................................................................. 2-7
2.7.2 Load Connection, Remote Sensing......................................................................................................... 2-8
2.7.3 A-c Ground.............................................................................................................................................. 2-8
2.7.4 D-c Ground.............................................................................................................................................. 2-8
SECTION 3 - OPERATION
3.1 Introduction................................................................................................................................................. 3-1
3.2 Power Supply Basics.................................................................................................................................. 3-1
3.2.1 External Programming Resistors............................................................................................................. 3-3
3.2.2 Active Programming Sources.................................................................................................................. 3-3
3.2.3 External Leads ........................................................................................................................................ 3-3
3.2.4 External Voltage Monitor......................................................................................................................... 3-3
3.2.5 External Current Monitor......................................................................................................................... 3-4
3.3 Local (Front Panel) Output Control............................................................................................................. 3-4
3.3.1 Voltage Mode Operation with Current Limiting........................................................................................ 3-4
3.3.2 Local Control of Current Limiting............................................................................................................. 3-6
3.3.3 Current Mode Operation with Voltage Limiting........................................................................................ 3-6
3.3.4 Local Control of Voltage Limiting............................................................................................................. 3-8
3.4 Remote Control of Voltage Channel........................................................................................................... 3-9
3.4.1 Remote Voltage Control Using Resistance (Potentiometer) ................................................................... 3-9

ii BOP 5-20DL 081915
TABLE OF CONTENTS
SECTION PAGE
3.4.2 Remote Voltage Control Using Resistance (Decade Box) ..................................................................... 3-10
3.4.3 Remote Voltage Control Using D-C Signal Voltage................................................................................ 3-11
3.4.4 Using the BOP as a Voltage Amplifier.................................................................................................... 3-12
3.4.5 Remote Control of Current Limiting........................................................................................................ 3-14
3.5 Remote Control of Current Control Channel.............................................................................................. 3-15
3.5.1 Remote Current Control Using Resistance (Potentiometer)................................................................... 3-16
3.5.2 Remote Current Control Using Resistance (Decade Box)...................................................................... 3-16
3.5.3 Remote Current Control Using D-C Signal Voltage................................................................................ 3-17
3.5.4 Using the BOP as a Current Amplifier.................................................................................................... 3-18
3.5.5 Remote Control of Voltage Limiting........................................................................................................ 3-19
3.6 Series and Parallel Connection of BOP Power Supplies........................................................................... 3-20
3.6.1 Series Connection, Master/slave Operation........................................................................................... 3-21
3.6.2 Circuit Breaker Control Circuit................................................................................................................ 3-22
3.6.3 Parallel Connection, Master/Slave Operation......................................................................................... 3-23
3.7 Indicator And Flag Logic Circuit................................................................................................................. 3-27
3.8 Digital Control of BOP Power Supplies...................................................................................................... 3-28
SECTION 4 - INTERNAL ADJUSTMENTS AND CALIBRATION
4.1 General...................................................................................................................................................... 4-1
4.2 Equipment Required .................................................................................................................................. 4-1
4.2.1 Adjustment of (±) 10 Volt Calibration Controls (A1R31, A1R32)............................................................ 4-2
4.2.2 Uncommitted Amplifier “A” Zero Adjustment (A1R41)............................................................................ 4-3
4.2.3 Uncommitted Amplifier “B” Zero Adjustment (A1R42)............................................................................ 4-3
4.2.4 Adjustment of Ammeter Zero Control (A1R50)....................................................................................... 4-3
4.2.5 Adjustment of IO-OFF Zero (A1A1R13) and EO-OFF Zero (A1A1R16)................................................. 4-4
4.2.6 Voltage Channel Zero Adjustment (A1R81) ........................................................................................... 4-4
4.2.7 Current Channel Zero Adjustment (A1R83)............................................................................................ 4-5
4.2.8 Calibration of IOFull Scale Output Current (A3R316) and Front Panel Ammeter (A7AR3B)................. 4-5

LIST OF FIGURES
FIGURE TITLE PAGE
BOP 5-20DL 081915 iii
1-2 BOP Output Characteristic.......................................................................................................................... 1-6
1-3 BOP Output WaveForm with Phase Shift ................................................................................................... 1-7
1-4 Boundaries and Limits ................................................................................................................................ 1-11
1-5 Mechanical Outline Drawing, BOP 5-20DL................................................................................................. 2-15
2-1 BOP 5-20DL, Terminations and Controls, Front Panel............................................................................... 2-1
2-2 BOP Terminations and Controls, Rear Panel ............................................................................................. 2-3
2-3 A-C Source Voltage Selection .................................................................................................................... 2-3
2-4 Slide Installation on Full-rack Units............................................................................................................. 2-7
2-5 Load Connection Using Local Sensing at Rear Panel................................................................................ 2-9
2-6 Load Connection Using Local Sensing at Front Panel ............................................................................... 2-9
2-7 Load Connection Using Remote Sensing at Rear Panel............................................................................ 2-10
2-8 Load Connection Using Remote Sensing at Front Panel ........................................................................... 2-10
3-1 Rear Programming Connector Terminals................................................................................................... 3-2
3-2 BOP Voltage Control Channel (Local Control, Local Sensing)................................................................... 3-4
3-3 BOP (±) Current Limiting Circuit (Local Control, Local Sensing) ................................................................ 3-6
3-4 BOP Current Control Channel (Local Control, Local Sensing) ................................................................... 3-7
3-5 BOP (±) Voltage Limiting Circuit (Local Control, Local Sensing)................................................................ 3-8
3-6 Remote Potentiometer Control of D-C Output Voltage............................................................................... 3-9
3-7 Remote D-C Output Voltage Control Using Two-Terminal Resistance (Decade)....................................... 3-10
3-8 Digital Control of the D-C Output Voltage................................................................................................... 3-11
3-9 D-C Output Voltage Control with Non-inverting Configuration and High Impedance ±1V Signal Source... 3-12
3-10 Graphs Of Possible Input/output Waveshapes........................................................................................... 3-13
3-11 Basic Programming Circuit for Use of BOP as Bipolar Amplifier (Voltage Mode)....................................... 3-13
3-12 Programming Circuit for Driving Output Voltage with.................................................................................. 3-14
3-13 Symmetrical Remote Control of the Current Limits..................................................................................... 3-15
3-14 Independent Remote Control of + IOand – IOLimits.................................................................................. 3-15
3-15 Remote Potentiometer Control of the BOP Output Current........................................................................ 3-16
3-16 Remote D-C Output Current Control Using Two-Terminal Resistance (Decade)....................................... 3-16
3-17 Digital Control of Output Current................................................................................................................. 3-17
3-18 BOP Output Current Control with Non-inverting Configuration
and High Impedance (±)1 Volt Signal Source......................................................................................... 3-17
3-19 Basic Programming Circuit for BOP as Bipolar Current-stabilized Amplifier............................................... 3-18
3-20 Programming Circuit for Driving Output Current with Bipolar Signal Less Than ±10V ............................... 3-18
3-21 Programming Circuit for Driving Output Current with a High Impedance Source....................................... 3-19
3-22 Symmetrical Remote Control of Voltage Limit ............................................................................................ 3-19
3-23 Independent Remote Control of +EOand –EOVoltage Limit...................................................................... 3-20
3-24 Series Connection (Master/Slave) of two BOP Power Supplies,
with Remote Error Sensing at the Common Load................................................................................... 3-21
3-25 Circuit Breaker Control Circuit, Simplified Diagram. ................................................................................... 3-23
3-26 Parallel Connection (Master/Slave) of Two BOP Power Supplies
with Remote Error Sensing at the Common Load................................................................................... 3-25
3-27 Alternative Parallel Connection (Master/Slave) for
Greater Precision and Stability of Two or More BOP Power Supplies..................................................... 3-26
3-28 Indicator Light and Flag Logic..................................................................................................................... 3-27
3-29 Simplified Schematic Diagram, BOP 5-20DL.............................................................................................. 3-29
4-1 Location of Internal Calibration Controls..................................................................................................... 4-2
4-2 Cover Removal and Internal Component Locations, BOP 5-20DL............................................................. 4-6

iv BOP 5-20DL 081915
LIST OF TABLES
TABLE TITLE PAGE
1-1 General Specifications ...............................................................................................................................1-2
1-2 Output Range and Output Impedance .......................................................................................................1-4
1-3 Static Specifications: Output Effects, Offsets, And Reference Specifications ............................................1-5
1-4 Dynamic Specifications for Nominal Resistive Load ..................................................................................1-6
1-5 Dynamic Specifications, in Current Mode for 2mH Inductive Load ............................................................1-6
1-6 Rear Programming Connector Terminal Functions .................................................................................... 1-7
1-7 Output ON-OFF Port A2J211, Pin Assignments ........................................................................................1-9
1-8 Current Loop Bandwidth Reduction by Adding Compensation
Capacitor to Rear Programming Connector (Resistive Load) ................................................................1-10
1-9 Equipment Supplied ...................................................................................................................................1-12
1-10 Accessories - Not Supplied ........................................................................................................................1-13
1-11 Safety Symbols ..........................................................................................................................................1-13
2-1 BOP Front Panel Terminations and Controls .............................................................................................2-1
2-2 BOP Rear Panel Terminations and Controls ..............................................................................................2-2
2-3 Chassis Slide Mounting Holes ....................................................................................................................2-6
4-1 Internal Calibration Controls .......................................................................................................................4-1

(v Blank)/vi BOP 5-20DL 081915
FIGURE 1-1. BOP 5-20DL POWER SUPPLY

BOP 5-20DL 081915 1-1
SECTION 1 - INTRODUCTION
1.1 SCOPE OF MANUAL.
This manual contains instructions for the installation and operation of the BOP 5-20DL 100 Watt
Bipolar Operational Power Supply manufactured by Kepco, Inc., Flushing, New York, U.S.A.
The L suffix indicates that the unit is optimized to drive large inductive loads in a stable manner.
Not that throughout this manual EOrepresents the rated output voltage, 5V, and IOrepresents
the rated output current, 20A.
1.2 GENERAL DESCRIPTION.
Kepco Series BOP Bipolar Power Supplies are fully dissipative, linear stabilizers for laboratory
and systems applications. The BOP is an all solid-state design, featuring IC operational amplifi-
ers in the control circuit section and silicon power transistors mounted on special fan-cooled
heat sinks in the complementary power stage.
The BOP has two bipolar control channels (voltage or current mode), selectable and individually
controllable either from their front panel controls, or by remote signals. Each of the principal con-
trol channels is protected by bipolar limit circuits. In these limit circuits the positive and negative
current or voltage limit points can be manually set or remotely programmed simultaneously or
individually. Automatic crossover between each principal control channel and its associated limit
channel is provided.
All control and limit channels are connected to the complementary output stage via an EXCLU-
SIVE OR gate, so that only one channel is in control of the BOP output at any one time. The
BOP output can be programmed over its full output range by a ±10 volt signal applied to either
one of the inputs to the voltage or the current channel. The limit control channels can be
remotely controlled by a 0 to +10 volt signal applied to their respective inputs. Two uncommitted
preamplifiers, with both inverting and non-inverting inputs available at the Rear Programming
Connector, can scale any programming source to the required input levels. Zero adjustments for
both amplifiers are provided.
The BOP is a fast programmable power supply. The dynamic specifications, given in Table 1-3,
are valid for resistive loads, while those shown in Table 1-5 are for a benchmark inductive load
of 2mH, with the BOP operating in current mode.
1.3 ELECTRICAL SPECIFICATIONS, GENERAL
See Table 1-1 for general specifications

1-2 BOP 5-20DL 081915
TABLE 1-1. GENERAL SPECIFICATIONS
SPECIFICATION RATING/DESCRIPTION CONDITION/COMMENT
A-C Input Voltage Nominal 104V / 115V / 208V / 230V Internal setting, see Figure 2-3
Range 95-113V / 105-125V / 190-226V / 210-250V
Brown-out 93V / 103V / 186V / 206V
Frequency 50 / 60 Hz nominal, ±3Hz range
A-C Input Current 11.0A Nominal output power,
sourcing, @115V/ 60Hz
Active Input power 1050W Nominal output power,
sourcing, @115V/ 60Hz
Power Factor 0.83 Nominal output power,
sourcing, @115V/ 60Hz
Input Leakage Current
(through earth-ground
connection)
0.1mA rms 115V/ 60Hz
Insulation Coordination Input Installation Cat. 2, Overvoltage Cat. 2,
Pollution Deg. 2 For TN or TT power systems
Output Installation Cat. 2, Overvoltage Cat. 2,
Pollution Deg. 2 Max. 500V between COMMON output terminal and chassis
Topology Linear Half bridge (AB Class)
Mode of operation Voltage Mode with
Current Limit and Voltage Limit
OR
Current Mode with
Voltage Limit and Current Limit
Mode of operation selectable
by front panel switch.
DC Transfer Factor
(Closed Loop Gain) Voltage in Voltage mode -0.5V/V ±0.5%, with default preamplifier For the default “inverting” configuration.
Current in
Current mode -2A/V ±0.1% with or without default pream- plifier, after recalibration/readjustment See Figures 3-9 and 3-18 for “non-inverting”configurationsin
voltage/current mode.
Preamplifier’s amplification
factor can be changed by
modifying connections and
adding resistors at rear
programming connector.
DC Transfer Factor is not
adjustable for voltage in voltage
mode nor for voltage and
current limits.
The DC Transfer Factor in
current mode is adjustable ±5%
by A3R316 (see PAR. 4.2.8).
Voltage in
Voltage limit +0.55V/V ±2% for positive limit -0.55V/V ±2% for negative limit
Current in
Current limit +2.2A/V ±2% for positive limit -2.2A/V ±2% for negative limit