KEPCO KLP 600-4-1.2K User manual

KEPCO®
THE POWER SUPPLIER™
MODEL
USER MANUAL
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
KEPCO INC.
An ISO 9001 Company.
KLP SERIES
POWER SUPPLY
1200 WATT PROGRAMMABLE POWER SUPPLY
KLP SERIES
POWER SUPPLY
©2010,KEPCO, INC
P/N 243-1248-d1
IMPORTANT NOTES:
1) This manual is valid for the following Model and associated serial numbers:
MODEL SERIAL NO. REV. NO. MODEL SERIAL NO. REV. NO.
KLP 10-150-1200 REV.1 KLP 10-150-1.2K REV.1
KLP 20-120-1200 REV.12 KLP 20-120-1.2K REV.1
KLP 36-60-1200 REV.12 KLP 36-60-1.2K REV.1
KLP 75-33-1200 REV.25 KLP 75-33-1.2K REV.1
KLP 150-16-1200 REV.22 KLP 150-16-1.2K REV.1
KLP 300-8-1200 REV.14 KLP 300-8-1.2K REV.1
KLP 600-4-1200 REV.3 KLP 600-4-1.2K REV.1
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
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.

228-1348 DC-COMP/INST 031308 A
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. 11352 USA
Importer's Name and Address:
Type of Equipment: Component Power Supply
Model No.: [PRODUCT MODEL NUMBER]
Year of Manufacture:
I, 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.11352 USA
Date:
Saul Kupferberg
(Full Name)
VP OF SALES
(position)
REPRESENTATIVECOPY

B228-1351 COND/CONFORM 031308
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 Voltage 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. (EN61010-1:2001, Cl. 6, Cl. 7, Cl.8, and Cl. 9)
2. 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.
3. This power supply is considered a Class 1 (earthed) product. It is intended for use as part of equip-
ment meant for test, measurement and laboratory 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 connection. See wiring section of this manual for complete
electrical wiring instructions. (EN61010-1:2001, Cl.6.10.1)
4. This power supply has secondary output circuits that are considered hazardous, and which exceed
240 VA at a potential of 2V or more.
5. The output wiring terminals of this power supply has not been evaluated for field wiring and, therefore,
must be properly configured by the end product manufacturer prior to use.
6. This power supply 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. (EN61010-1:2001,
Cl. 9.5)
7. 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.

228-1353 SAFETY - (SWITCH) 031308 C/(D BLANK)
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:
2. Grounding
This product is a Class 1 device which utilizes protective earthing to ensure operator safety.
3. Electric Shock Hazards
This product outputs hazardous voltage and energy levels as a function of normal operation. Operators
must be trained in its use and exercise caution as well as common sense during use to prevent accidental
shock.
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 prior to performing any servicing.
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.
This symbol appears adjacent to any external terminals at which hazardous voltage
levels as high as 600V 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 600V d-c may exist in the course of normal or single fault condi-
tions
!
!
!
!

KLP SVC 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 Specifications.............................................................................................................................................. 1-1
1.4 Features...................................................................................................................................................... 1-8
1.4.1 Local Control ........................................................................................................................................... 1-8
1.4.2 Remote Control ....................................................................................................................................... 1-8
1.4.2.1 Digital Programming........................................................................................................................... 1-8
1.4.2.2 Analog Programming ......................................................................................................................... 1-8
1.4.3 Digital Calibration .................................................................................................................................... 1-8
1.4.4 Overvoltage/Overcurrent Protection........................................................................................................ 1-9
1.4.5 User-defined Voltage/Current Limits (Virtual Models) ............................................................................. 1-9
1.4.6 Storage of User-Programmed Active Settings ........................................................................................ 1-9
1.4.7 User-Programmed Sequences................................................................................................................ 1-9
1.4.8 Last Setting Recall .................................................................................................................................. 1-9
1.4.9 Built-in Protection .................................................................................................................................... 1-9
1.4.10 Internal Relay .......................................................................................................................................... 1-10
1.4.11 Master/Slave Control [-1200 Models Only].............................................................................................. 1-10
1.5 Equipment Supplied.................................................................................................................................... 1-10
1.6 Accessories ................................................................................................................................................ 1-10
1.7 Safety.......................................................................................................................................................... 1-10
SECTION 2 - INSTALLATION
2.1 Unpacking and Inspection .......................................................................................................................... 2-1
2.2 Terminations and Controls.......................................................................................................................... 2-1
2.2.1 Front Panel Controls and Indicators. ....................................................................................................... 2-1
2.2.2 Rear Panel Connectors and Switches..................................................................................................... 2-1
2.3 Source Power Requirements...................................................................................................................... 2-6
2.4 Cooling........................................................................................................................................................ 2-6
2.5 Preliminary Operational Check ................................................................................................................... 2-6
2.6 Installation................................................................................................................................................... 2-7
2.6.1 Rack Mounting ........................................................................................................................................ 2-7
2.7 Wiring Instructions ...................................................................................................................................... 2-7
2.7.1 Safety Grounding .................................................................................................................................... 2-8
2.7.2 Source Power.......................................................................................................................................... 2-8
2.7.2.1 Current Rating.................................................................................................................................... 2-8
2.7.2.2 Connections ....................................................................................................................................... 2-8
2.7.3 D-C Output Grounding ............................................................................................................................ 2-9
2.7.4 Power Supply/Load Interface .................................................................................................................. 2-10
2.7.5 Load Connection - General ..................................................................................................................... 2-10
2.7.5.1 Local Sensing/Remote Sensing Select .............................................................................................. 2-10
2.7.6 Series Operation ..................................................................................................................................... 2-11
2.7.7 Parallel/redundant Operation .................................................................................................................. 2-11
2.7.7.1 Load Sharing...................................................................................................................................... 2-13
2.7.8 Master/Slave Configurations [-1200 Models Only] .................................................................................. 2-13
2.7.9 Analog I/O Connections .......................................................................................................................... 2-14
2.8 Digital Connections..................................................................................................................................... 2-14
2.8.1 GPIB Connections................................................................................................................................... 2-14
2.8.2 RS 232 Connections [-1200 Models Only] .............................................................................................. 2-15
2.8.3 LAN Connections [-1.2K Models Only].................................................................................................... 2-15
SECTION 3 - OPERATION
3.1 General ....................................................................................................................................................... 3-1
3.2 Local Mode Operation ................................................................................................................................ 3-1
3.2.1 Turning the Power Supply On ................................................................................................................. 3-1
3.2.2 Setting Local/Remote Mode .................................................................................................................... 3-3
3.2.2.1 Remote with Local (Front Panel) Lockout .......................................................................................... 3-3

ii KLP SVC 031308
TABLE OF CONTENTS
SECTION PAGE
3.2.3 Enabling/Disabling Output Power........................................................................................................... 3-4
3.2.4 Checking Voltage/Current Setpoints....................................................................................................... 3-4
3.2.5 Password Protected Functions ............................................................................................................... 3-4
3.2.6 Defining a Virtual Model.......................................................................................................................... 3-5
3.2.7 Setting voltage or current........................................................................................................................ 3-6
3.2.7.1 Real-time Voltage/Current Adjustment .............................................................................................. 3-6
3.2.7.2 Setpoint Adjustment .......................................................................................................................... 3-6
3.2.7.3 Last Setting Recall............................................................................................................................. 3-7
3.2.8 Viewing/Changing Overvoltage or Overcurrent Protection Values ......................................................... 3-7
3.2.9 Changing GPIB Address......................................................................................................................... 3-8
3.2.10 Changing RS232 Baud Rate [-1200 Models Only] ................................................................................. 3-8
3.2.11 Setting up Master/Slave Configurations [-1200 Models Only] ................................................................ 3-8
3.2.11.1 Configure power supply as Master [-1200 Models Only]................................................................... 3-9
3.2.11.2 Configure power supply as Slave [-1200 Models Only]..................................................................... 3-9
3.2.11.3 Operating the Master/Slave Configuration [-1200 Models Only] ....................................................... 3-10
3.2.12 LAN Interface Configuration [-1.2K Models Only]................................................................................... 3-11
3.2.13 Utility Function ........................................................................................................................................ 3-12
3.2.13.1 Display System Firmware Version..................................................................................................... 3-13
3.2.13.2 Display Model .................................................................................................................................... 3-13
3.2.13.3 Internal Relay Control........................................................................................................................ 3-13
3.2.13.4 Quick Boot ......................................................................................................................................... 3-15
3.2.13.5 System Configuration Functions........................................................................................................ 3-15
3.2.13.5.1 Remote Inhibit Configuration....................................................................................................... 3-15
3.2.13.5.2 Fault Recovery Configuration...................................................................................................... 3-16
3.2.13.6 Analog Input Full Scale Calibration ................................................................................................... 3-17
3.2.13.7 Calibration ......................................................................................................................................... 3-18
3.3 Remote Mode Programming Using Digital Interfaces ................................................................................ 3-18
3.3.1 Factory Default Settings ......................................................................................................................... 3-18
3.3.1.1 GPIB Factory Defaults....................................................................................................................... 3-18
3.3.1.2 RS 232 Factory Defaults [-1200 Models Only] .................................................................................. 3-18
3.3.1.3 LAN Factory Defaults [-1.2K Models Only]........................................................................................ 3-18
3.3.2 Additional Functions Not Available from the Front Panel ....................................................................... 3-19
3.3.3 Remote Programming Using the IVI-COM Instrument Driver................................................................. 3-19
3.3.4 Remote Programming Using the LabView G Instrument Driver ............................................................. 3-19
3.3.5 Remote Programming Using the VXI plug&play Instrument Driver ........................................................ 3-19
3.3.6 Remote Programming Using the Web Interface [-1.2K Models Only] .................................................... 3-19
3.3.6.1 Finding Kepco Power Supplies on the LAN [-1.2K Models Only] ...................................................... 3-20
3.3.6.2 Launch Web Interface [-1.2K Models Only]....................................................................................... 3-21
3.3.6.3 Instrument Configuration Using Web Interface [-1.2K Models Only] ................................................. 3-22
3.3.6.4 LAN Configuration Using Web Interface [-1.2K Models Only]........................................................... 3-23
3.3.6.5 Operating The Unit Using Web Interface [-1.2K Models Only] .......................................................... 3-24
3.3.6.5.1 Changing the Output [-1.2K Models Only]................................................................................... 3-25
3.3.6.5.2 Changing Protection [-1.2K Models Only] ................................................................................... 3-25
3.3.6.5.3 Using Save and Recall [-1.2K Models Only] ............................................................................... 3-25
3.3.6.5.4 Resetting the Unit (*RST) [-1.2K Models Only] ........................................................................... 3-27
3.3.6.5.5 Using a List (User-Programmed Sequences) [-1.2K Models Only] ............................................. 3-27
3.3.6.5.6 Setting Virtual Model [-1.2K Models Only]................................................................................... 3-28
3.4 Remote Programming Using Analog Signals............................................................................................. 3-29
3.4.1 Enabling/Disabling the Output using Analog Control.............................................................................. 3-29
3.4.2 Programming with external resistance.................................................................................................... 3-30
3.4.3 Programming with external Voltage........................................................................................................ 3-31
3.4.4 Changing Overvoltage or Overcurrent Protection Values in Analog Programming Mode ...................... 3-32

KLP SVC 020498 iii
TABLE OF CONTENTS
SECTION PAGE
SECTION 4 - CALIBRATION
4.1 General ....................................................................................................................................................... 4-1
4.2 Equipment Required ................................................................................................................................... 4-1
4.3 Calibration Using Front Panel Controls in Local Mode ............................................................................... 4-2
4.3.1 Voltage Calibration (Local) ...................................................................................................................... 4-2
4.3.2 Current Calibration (Local) ...................................................................................................................... 4-3
4.3.3 External Calibration (Local) ..................................................................................................................... 4-3
4.3.4 Calibration Exit (Local) ............................................................................................................................ 4-4
4.4 Calibration using VXI plug&play Driver....................................................................................................... 4-4
4.4.1 Voltage Calibration (VXI plug&play Driver Demo)................................................................................... 4-6
4.4.2 Current Calibration (VXI plug&play Demo).............................................................................................. 4-7
4.4.3 Analog Reference Calibration (VXI plug&play Demo)............................................................................. 4-8
4.4.4 Calibration Exit (VXI plug&play Demo).................................................................................................... 4-9
4.5 Changing the Calibration Password ........................................................................................................... 4-9
4.6 Restoring Prior Calibration Values.............................................................................................................. 4-10
KLP INSTALLATION/OPERATION SUMMARY

LIST OF FIGURES
FIGURE TITLE PAGE
iv KLPSVC 031308
1-1 KLP Series Power Supply ............................................................................................................................. vi
1-2 KLP Operating Regions.............................................................................................................................. 1-2
1-3 KLP Series Power Supply, Mechanical Outline Drawing ........................................................................... 1-6
2-1 KLP Series, Front Panel Controls and Indicators....................................................................................... 2-1
2-2 KLP Series, Rear Panel Switch and Connectors ....................................................................................... 2-3
2-3 Remote Sensing......................................................................................................................................... 2-11
2-4 Series Connection using Remote Sensing................................................................................................. 2-12
2-5 Parallel Connections Using Remote Sensing............................................................................................. 2-12
3-1 Fault Recovery Configuration Display ........................................................................................................ 3-17
3-2 PS FIND Screen......................................................................................................................................... 3-20
3-3 Setting a Static IP Address......................................................................................................................... 3-21
3-4 Web Interface Home Page (Unit Description) ............................................................................................ 3-21
3-5 Web Interface Configure Instrument Page ................................................................................................. 3-22
3-6 Web Interface Configure LAN Page ........................................................................................................... 3-24
3-7 Web Interface Operate Instrument Page.................................................................................................... 3-25
3-8 Protection Dialog Box................................................................................................................................. 3-25
3-9 Save/Recall Dialog Box.............................................................................................................................. 3-26
3-10 Reset Dialog Box........................................................................................................................................ 3-27
3-11 List Dialog Box ........................................................................................................................................... 3-27
3-12 Adding Multiple Steps (Ramps) to List ....................................................................................................... 3-28
3-13 Virtual Model Dialog Box ............................................................................................................................ 3-29
3-14 Analog Programming of Output Voltage or
Current using Resistance ....................................................................................................................... 3-30
3-15 Analog Programming of Output Voltage or Current using Voltage............................................................. 3-31
4-1 Calibration Window .................................................................................................................................... 4-5
4-2 Voltage Calibration Window ....................................................................................................................... 4-6
4-3 Current Calibration Window ....................................................................................................................... 4-7
4-4 Analog Reference Calibration Window....................................................................................................... 4-8

KLP SVC 020498 v
LIST OF TABLES
TABLE TITLE PAGE
1-1 Model Parameters .......................................................................................................................................1-2
1-2 KLP Specifications ......................................................................................................................................1-3
1-3 Equipment Supplied ....................................................................................................................................1-10
1-4 Accessories .................................................................................................................................................1-11
1-5 Safety Symbols ...........................................................................................................................................1-11
2-1 Controls, and Indicators ..............................................................................................................................2-1
2-2 Analog I/O Switch Functions .......................................................................................................................2-2
2-3 IEEE 488 Port Connector (J4) Pin Assignments .........................................................................................2-4
2-4 RS232 Port Connector (J3) Pin Assignments [-1200 Models Only] ............................................................2-4
2-5 LAN Port Connector (J7) Pin Assignments [-1.2K Models Only] ................................................................2-5
2-6 Control Input Terminal block Assignments ..................................................................................................2-5
2-7 Analog I/O Connector (J2) Pin Assignments ..............................................................................................2-5
2-8 Input Current Service Rating and Conductor Sizes ....................................................................................2-8
3-1 Power-up Built-in Test Error Codes ............................................................................................................3-2
4-1 Factory Default Unit Passwords ..................................................................................................................4-10

vi KLP031308
FIGURE 1-1. KLP SERIES POWER SUPPLY

KLP 031308 1-1
SECTION 1 - INTRODUCTION
1.1 SCOPE OF MANUAL
This manual contains instructions for the installation, operation and service of the KLP series of
1200W output power, stabilized voltage or current, d-c power supplies manufactured by
KEPCO, Inc., Flushing, New York, U.S.A.
WARNING
DANGEROUS AND LETHAL POTENTIALS ARE PRESENT,
BOTH WITHIN THIS POWER SUPPLY, AND AT THE OUTPUT!
Before proceeding to use the power supply, read this manual very care-
fully. Caution must be used when working with, and making connections
to, this power supply. Use only wires with the proper voltage rating for
high voltage connections.
1.2 GENERAL DESCRIPTION
The KLP Power Supply Series (Figure 1-1) are universal input, automatic crossover, 1200-watt
constant power, voltage/current stabilizers with a full rectangular output characteristic within the
voltage and current ranges listed in Table 1-1.
Six KLP -1200 Models and six KLP -1.2K Models are available, as listed in Table 1-1. The -1200
Models are GPIB and RS 232 compatible; the KLP -1.2K Models are GPIB and LAN compatible.
All models allow remote analog programming.
For each model a multitude of virtual models can be configured. The “rated voltage, maximum
current at rated voltage” and “rated current and maximum voltage at rated current” parameters
define the virtual models available within the limit of 1200 Watts of output power (see Figure 1-
2).
KLP power supplies operate from wide range 100-255V a-c, 45-66 Hz or 125-420V d-c input
source power. Since there are no internal adjustments, KLP Power Supplies offer excellent out-
put voltage/current stability and easy calibration.
Output voltage and current are displayed on independent LED displays. Control of the KLP can
be either local, via the front panel controls and displays, or remote, using 1) either analog sig-
nals (applied to the Analog I/O Port), or 2) digital programming via either a) IEEE 488.2 (GPIB)
bus, b) RS 232 communication bus [-1200 Models only]. The -1.2K Models also offer direct or
web page control via the LAN port. Digital control is done with 12 bits of resolution over the
entire voltage/current range.
The full-rack cross section permits mounting in a standard 19-inch wide rack (for optional chas-
sis slides); see Table 1-4. Load connections are made at the rear panel. Sensing, monitor, and
current share terminals are also available at the rear panel. Outline dimensions are provided in
Figure 1-3.
1.3 SPECIFICATIONS
Table 1-1 lists the parameters applicable to individual models. Table 1-2 lists general specifica-
tions applicable to all models except where otherwise noted.

1-2 KLP 031308
FIGURE 1-2. KLP OPERATING REGIONS
TABLE 1-1. MODEL PARAMETERS
Model number
Rated
Voltage
Range(1)
Maximum
current for
rated voltage
Minimum
programmable
current
Rated
Current
Range(1)
Maximum
voltage for
rated current
Ripple and
noise
p-p(2)
Efficiency
@115 Va-c
KLP 10-150-(3) 0-10V 120A@10V 3.2A 0-150A 8V@150A 75 mV 80%
KLP 20-120-(3) 0-20V 60A@20V 1.6A 0-120A 10V@120A 75 mV 82%
KLP 36-60-(3) 0-36V 33.3A@36V 0.8A 0-60A 20V@60A 125 mV 83%
KLP 75-33-(3) 0-75V 16A@75V 0.4A 0-33.3A [email protected] 125 mV 84%
KLP 150-16-(3) 0-150V 8A@150V 0.2A 0-16A 75V@16A 125 mV 86%
KLP 300-8-(3) 0-300V 4A@300V 0.1A 0-8A 150V@8A 300 mV 87%
KLP 600-4-(3) 0-600V 2A@600V 0.05A 0-4A 300V@4A 400 mV 88%
(1) The maximum current and voltage are constrained by the 1200 watt power limitation, see Figure 1-2.
(2) Bandwidth: 20MHz; low frequency ripple may be higher at loads less than 30 Watts.
(3) Specifications listed apply to both -1200 and -1.2K Models.

KLP 031308 1-3
TABLE 1-2. KLP SPECIFICATIONS
SPECIFICATION RATING/DESCRIPTION CONDITION/COMMENT
INPUT CHARACTERISTICS
a-c voltage
nominal 110-240 Va-c Single Phase.
range 100-255 Va-c Wide Range; contact factory for opera-
tion to 265V a-c.
d-c voltage range 125-420 Vd-c No regulatory agency approval.
Frequency nominal range 50-60 Hz
maximum 45-440 Hz Increased Leakage above 66 Hz.
Power Factor typical 0.99 Meets EN 61000-3-2.
Maximum Input Current 120 Va-c 13A rms Rated load (1200W).
240 Va-c 6.5A rms Rated load (1200W).
Inrush Current 265 Va-c 40A Peak
132 Va-c 20A Peak
Input Fusing Circuit Breaker 2-line
Low a-c Protection Self protected No fixed limits.
Output hold up typical 10 milliseconds Ride through.
Leakage Current 115 Va-c, 60Hz 5mA max
230 Va-c 50Hz 10mA max
OUTPUT CHARACTERISTICS
Type of stabilizer CV/CC Voltage/Current
Adjustment range voltage 0-100% of rated voltage No minimum load required.
current mininimum to 100% of rated current No minimum load required. See Table
1-1 for minimum programmable current.
Source effect voltage 0.01% Emax Over full source range.
current 0.01% Imax
Load effect voltage 0.01% Emax Over full load current range.
current 0.02% Imax
Temperature effect voltage 0.02%/deg C 0-50 deg C
current 0.05%/deg C
Time effect (drift) voltage 0.05%/24hr After 30 min warmup.
current 0.05%/24hr
Error sensing 0.25 volts per wire Above rated output. Contact factory for
larger margins.
Isolation voltage 600 Vd-c or peak Either output terminal to ground.
Transient recovery
for load change
excursion 1% of Emax 50% load step 2A/microsecond max.
recovery 2 msec Return to 0.1% of setting.
Turnon/turnoff overshoot same as load transient response limits
Overvoltage protection voltage 20-120% of Emax Programmable; see PAR. 3.2.13.5.2.
Overcurrent protection current 72-120% of Imax Programmable; see PAR. 3.2.13.5.2.
Overtemperature protection Shutdown See PAR. 3.2.13.5.2.
Open Load wire protection Shutdown See PAR. 3.2.13.5.2.
Parallel operation Active load sharing within 5% of Io rated Up to 5 units, maximum.

1-4 KLP 031308
GENERAL (ENVIRONMENTAL) SPECIFICATIONS
Temperature operating -20 to +50 deg C Rated load. Derate at 25W per °C
between 50 and 70°C.
storage -40 to +85 deg C
Cooling 3 internal d-c fans exhaust to the rear
Humidity 0 to 95% RH non-condensing
Shock 20g, 11msec +/- 50% half sine non-operating
Vibration 5 -10 Hz 10mm double amplitude 3-axes, non-operating
10-55 Hz 2g 3-axes, non-operating
Altitude sea level to 10000 ft. 0-3,000 ft: 100%, linear derating to 70%
of power at 10,000ft.
PHYSICAL CHARACTERISTICS
Dimensions English 1.735”H x 19"W x 17.5"D Depth excluding connectors and termi-
nal blocks (see Figure 1-3).
metric 44.45 x 482.6 x 443.7 mm
Weight English 15 lbs
metric 6.82kg
Source power connector IEC 320-C19 appliance inlet 250 Va-c, 16A (VDE);
125V a-c, 20A (UL)
Load connections 8-36V models Nickel plated copper busbars Provision for safety covers.
75-600V models Shocksafe Euroblock
Analog programming port. 15 pin D-sub
Digital programming ports primary Standard GPIB connector IEEE 488.2 (GPIB)
secondary 9 pin D-sub RS 232 (-1200 Models only)
secondary RJ 45 LAN (-1.2K Models Only)
Feedback/Control Input 5 position low profile Euroblocks
PROGRAMMING CHARACTERISTICS - LOCAL
Local control rotary encoders Panel mounted.
Local control resolution Coarse ~100 LSB/step Depress control for Fine resolution
Fine 1 LSB/step
Setting range 0-100% of rating KLP will automatically adjust limit to
maintain 1200 W maximum,
Power up settings voltage defaults to zero See PAR. 3.2.7.3.
current defaults to min. value (See Table 1-1)
Protection Limits Overvoltage 20-120% of Emax Programmable; accessed via front
panel protect switch or SCPI command
over digital bus.
Overcurrent 72-120% of Imax
TABLE 1-2. KLP SPECIFICATIONS (Continued)
SPECIFICATION RATING/DESCRIPTION CONDITION/COMMENT

KLP 031308 1-5
PROGRAMMING CHARACTERISTICS - ANALOG
Analog remote control selection Activate with jumper at analog program-
ming connector
Recognized during power up.
isolation Safety Extra Low Voltage (SELV)
Analog Input Update Rate 2Hz (0.5 Second) Applies to program-
ming by voltage/ resistance and read-
back specifications.
Analog input voltage digitized (12-bit
resolution), optically isolated, then pro-
cessed by digital section.
Programming by voltage voltage 0-10V See PAR. 4.3.3 to reduce Full Scale
voltage.
current 0-10V Min. programming limit; see Table 1-1.
See PAR. 4.3.3 to reduce Full Scale
voltage.
Programming by resistance voltage 0-10K ohms See PAR. 4.3.3 to reduce Full Scale
resistance.
current 0-10K ohms Min. programming limit; see Table 1-1.
See PAR. 4.3.3 to reduce Full Scale
resistance.
Readback 0-10V proportional signal Proportional to analog control volt-
age/resistance.
Remote inhibit TTL compatible Dual polarity; see PAR. 3.2.13.5.1.
Composite status flag Isolated form C contacts Programmable functions (PAR.
3.2.13.3).
PROGRAMMING CHARACTERISTICS - DIGITAL
Supported Interfaces -1200 Models GPIB and RS 232 SCPI command set for GPIB and RS
232 (see KLP Developer’s Guide).
-1.2K Models GPIB and LAN Support SCPI command set (see KLP
Developer’s Guide) for GPIB and LAN;
Support four interfaces for LAN:
1. Web interface, port 80 (LXI Class C,
Version 1.2
2. SCPI Telnet, port 5024
3. SCPI Sockets, port 5025
4. VXI 11, port 1024
GPIB GPIB address range: 1 to 31 Factory default is 6.
RS 232 -1200 Models Baud Rate range: 2400, 4800, 9600,
19,200 or 38,400
Factory default is 38,400.
Digital remote control isolation Safety Extra Low Voltage (SELV)
format compatible with SCPI protocols W98 SE and later operating systems.
Programming resolution 0.024% of Emax and Imax
Programming accuracy 0.05% of Emax and Imax
Readback resolution 0.024% of Emax and Imax
Readback accuracy 0.1% of Emax and Imax
Status reporting OVP, OCP, OTP, output lead fault
(OLF), fan failure, power loss
See PAR. 1.4.4 and 1.4.9.
TABLE 1-2. KLP SPECIFICATIONS (Continued)
SPECIFICATION RATING/DESCRIPTION CONDITION/COMMENT

1-6 KLP 031308
FIGURE 1-3. KLP SERIES POWER SUPPLY, MECHANICAL OUTLINE DRAWING (SHEET 1 OF 2)
R\DWG\MECH\3010266

KLP 031308 1-7
FIGURE 1-3. KLP SERIES POWER SUPPLY, MECHANICAL OUTLINE DRAWING (SHEET 2 OF 2)

1-8 KLP 031308
1.4 FEATURES
1.4.1 LOCAL CONTROL
Two front panel rotary encoders allow adjustment of voltage and current setpoints and limits.
Operating mode of the power supply is indicated by lighting either a green (Constant Voltage) or
amber (Constant Current) LED. The output can be enabled or disabled by the front panel DC
OUTPUT switch; an associated indicator lights when the output is enabled (applied to the load).
Two 4-character LEDs normally display actual output voltage and current, or programmed volt-
age and current limits in setpoint mode.
The voltage and current controls and their associated LED displays are also used with the
FUNCTION and PROTECT switches and the 4-character status display for various other func-
tions described in PAR. 3.2. A local lockout feature (see PAR. 3.2.2.1) prevents alteration of the
power supply settings from the front panel when the power supply is operating in remote mode.
1.4.2 REMOTE CONTROL
Remote control of the KLP Power Supply can be accomplished either through digital or analog
programming.
1.4.2.1 DIGITAL PROGRAMMING
Digital control for -1200 Models is available directly via either the IEEE 488.2 (GPIB) or RS232
ports using SCPI commands. Digital control for -1.2K Models is available directly via either the
IEEE 488.2 (GPIB) port using SCPI commands or via the LAN port using SCPI commands or
web pages. Most features available in local mode can be accessed in remote mode through dig-
ital programming, as well as some that are only available via digital remote programming (PAR.
3.3.2). Front panel indicators showing operating mode and output voltage and current are active
when digital programming is used. Refer to the KLP Developer’s Guide for more information
about digital programming.
1.4.2.2 ANALOG PROGRAMMING
KLP Power Supplies can also be controlled remotely using switch selectable voltage or resis-
tance. Analog programming functions include voltage and current programming, enabling/dis-
abling the output, and voltage and current readback (see PAR. 3.4).
Full scale programming/readback can be programmed using either an input analog voltage or
by an input analog resistance. See PAR. 3.4 for more information.
1.4.3 DIGITAL CALIBRATION
Internal adjustments of the KLP Power Supply are automatic. Calibration can be performed in
either local or remote (using the VXI plug&play demo program) digital mode, using a calibrated
DVM and a corresponding precision shunt resistor.
Calibration constants for programming and read-back activities are calculated by the microcon-
troller and stored in the non-volatile memory. No internal adjustments are necessary. The previ-
ous calibration is saved and can be restored if desired. The original factory calibration can also
be restored. Calibration is password-protected. Refer to Section 4 for more information.