KEPCO KLP User Manual

QUICK START GUIDE

KEPCO

An ISO 9001 Company.

KLP

KLP POWER SUPPLY

This guide gives a brief introduction to the KLP Power supply, shows simple load connections, and
allows you to verify the power supply is working. The guide also shows you how to use the front panel
controls to perform the most commonly used functions.

Accessing Manuals. First determine your Firmware Version (see below), then download the KLP User
Manual and Developer’s Guide from www.kepcopower.com/support/opmanls.htm#klp. Refer to the KLP
User Manual for full specifications, installation considerations and operating instructions. An Installation/
Operation Summary includes hyperlinked references to detailed procedure, but which can be printed as
a handy reference. Refer to the KLP Developer’s Guide for a full description of the digital interfaces, their
associated drivers, and the SCPI command language.

Firmware Version. Refer to www.kepcopower.com/utility/util.htm to determine which firmware version is
installed. The KLP can be upgraded to the latest version at no cost using the Kepco Upgrade Utility, also
available at www.kepcopower.com/utility/util.htm.

Accessing Drivers. Drivers are accessed from www.kepcopower.com/drivers/drivers-dl3.htm.

CONTENTS

DESCRIPTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

UNPACKING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

EQUIPMENT SUPPLIED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

SAFETY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

PRELIMINARY OPERATIONAL CHECK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Input Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Load Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Local Sensing (Factory Default). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Remote Sensing Select. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Analog I/O Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

GPIB Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

RS 232 Connections (Standard Models). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

LAN Connections (E-Series Models). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Turning the Power Supply On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Enabling/disabling Output Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Checking or changing Voltage/Current Setpoints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Virtual Model Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Setting voltage or current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Last Setting Recall. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Viewing/Changing Overvoltage or Overcurrent Protection Values. . . . . . . . . . . . . . . . . . . . . . . . . 10

KLP OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

KEPCO, INC.  131-38 SANFORD AVENUE  FLUSHING, NY. 11355 U.S.A.  TEL [phone]  FAX [phone]

©2012, KEPCO, INC
Data subject to change without notice

http://www.kepcopower.com  email: [e-mail]

228-1616 REV 6 070312

DESCRIPTION. The KLP Power Supply Series are universal input, automatic crossover, 1200-watt

constant power, voltage/current stabilizers with a full rectangular output characteristic. There are seven
standard models (also referred to as -1200) and seven E -Series models (formerly referred to as -1.2K)
(see Table 1). The standard models are GPIB and RS 232 compatible; the E-Series 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.

TABLE 1. MODEL PARAMETERS

Model number

KLP 10-150

KLP 20-120

KLP 36-60

KLP 75-33

KLP 150-16

KLP 300-8

KLP 600-4

(1) The maximum current and voltage are constrained by the 1200 watt power limitation.
(2) Bandwidth: 20MHz; low frequency ripple may be higher at loads less than 30 Watts.
(3) Specifications listed apply to both standard (-1200) and E-Series (suffix E) models.

(3)

(3)

(3)

(3)

(3)

(3)

(3)

Rated

Vol tag e

Range

0-10V 120A@10V 1.9A 0-150A 8V@150A 60 mV 80%

0-20V 60A@20V 1.5A 0-120A 10V@120A 60 mV 82%

0-36V 33.3A@36V 0.8A 0-60A 20V@60A 60 mV 83%

0-75V 16A@75V 0.4A 0-33.3A 36V@33.3A 60 mV 84%

0-150V 8A@150V 0.2A 0-16A 75V@16A 125 mV 86%

0-300V 4A@300V 0.1A 0-8A 150V@8A 150 mV 87%

0-600V 2A@600V 0.05A 0-4A 300V@4A 150 mV 88%

Maximum

current for

(1)

rated voltage

Minimum

programmable

current

Rated

Current

Range

Maximum

voltage for

(1)

rated current

Ripple

and

noise

(2)

p-p

Efficiency

@115 Va-c

UNPACKING. This instrument has been thoroughly inspected and tested prior to packing and is

ready for operation. After careful unpacking, inspect for shipping damage before attempting to operate.
Perform the PRELIMINARY OPERATIONAL CHECK. If any indication of damage is found, file an imme­diate claim with the responsible transport service.

EQUIPMENT SUPPLIED. See Table 2.

TABLE 2. EQUIPMENT SUPPLIED

ITEM

Source power connector 142-0381 1

Jumper (24 AWG or larger bus wire) for local sensing connections 172-0585 2

Analog I/O port mating connector 142-0528 1

Nut, 1/4-20, with captive lockwasher (on output studs of 10V, 20V and 36V models only) 102-0175 2

Quick Start Guide * 228-1616 1

* User Manual and Developer’s Guide are available as free downloads from:
www.kepcopower.com/support/opmanls.htm#klp
Drivers are available as free downloads from
www.kepcopower.com/drivers/drivers-dl3.htm#klp

PART NUMBER QUANTITY

KEPCO, INC.  131-38 SANFORD AVENUE  FLUSHING, NY. 11355 U.S.A.  TEL [phone]  FAX [phone]

http://www.kepcopower.com  email: [e-mail]

2 228-1616 REV 6 070312

ACCESSORIES. See Table 3.

TABLE 3. ACCESSORIES

ITEM FUNCTION

Line Cord Set (125V/20A) 2.5m long cord set, provides for source power

connection. Mates with NEMA 5-20R receptacle
(see adjacent figure). Supports rated load power
over mains voltage range of 90-136V a-c.

Line Cord Set (125V/15A) 2.5m long cord set, provides for source power

connection. Mates with NEMA 5-15R receptacle
(see adjacent figure). Supports restricted load
power over mains voltage range of 90-136V a-c
(contact Kepco Sales Engineering for details).

Line Cord Set (250V/15A) 2.5m long cord set, provides for source power

connection. Mates with NEMA 6-15R receptacle
(see adjacent figure). Supports rated load power
over mains voltage range of 180-265V a-c.

IEEE 488 (GPIB) Cable, 1m long Connect KLP Power Supply to GPIB bus. SNC 488-1

IEEE 488 (GPIB) Cable, 2m long Connect KLP Power Supply to GPIB bus. SNC 488-2

IEEE 488 (GPIB) Cable, 4m long Connect KLP Power Supply to GPIB bus. SNC 488-4

Chassis Slide Allows rack-mounted units to slide in and out. Two (2) slides required

per power supply.

Analog Connector Backshell Locks analog port mating connector to KLP via jackscrews. 108-0204

Loop Back Test Connector Used for verification of RS 232 operation. 195-0112

Null Modem Cable, 10 ft. Connect RS 232 port with controlling computer, DB9F to DB9F, 10 feet

long.

Null Modem Cable, 1 ft. Used for Master/Slave connections. Connects RS 232 ports of stacked

power supplies, DB9F to DB9F, one foot long.

LAN Patch cable Connects KLP LAN port to LAN, 10 ft long. 118-1115

Support bracket, rear Provides extra support to rear of rack-mounted unit if needed. Two

brackets required per unit. Each bracket requires 2 screws and 2
washers. See Figure 4, sheet 1, Detail “A” for requirements.

NEMA 5-20R 118-0776

NEMA 5-15R 118-1136

NEMA 6-15R 118-1137

KEPCO

PART NUMBER

108-0239

(Jonathan

375-QD Series)

118-1176

118-1220

128-2306

SAFETY. See Table 4

TABLE 4. SAFETY SYMBOLS

SYMBOL MEANING

CAUTION: RISK OF ELECTRIC SHOCK.

CAUTION: REFER TO REFERENCED PROCEDURE.

!

WARNING INDICATES THE POSSIBILITY OF BODILY INJURY OR DEATH.

CAUTION INDICATES THE POSSIBILITY OF EQUIPMENT DAMAGE.

KEPCO, INC.  131-38 SANFORD AVENUE  FLUSHING, NY. 11355 U.S.A.  TEL [phone]  FAX [phone]

070312 228-1616 REV 6 3

http://www.kepcopower.com  email: [e-mail]

PRELIMINARY OPERATIONAL CHECK. A simple operational check after unpacking and

before equipment installation is advisable to ascertain whether the power supply has suffered damage
resulting from shipping.

NOTE: This test must be performed with all I/O ports disconnected, and ANALOG I/O SETTINGS

switch positions 3, 4 and 5 set to OFF (up).

1 With POWER circuit breaker set to OFF position, connect the power supply to source power (see

See “Input Connections.” on page 5.).

2 With no load connected, set POWER circuit breaker to the ON position. Each time the unit is turned

on an internal self-test is performed (see “Turning The Power Supply On.” on page 7). After the test
has been successfully completed, the status display reads SET (setpoint mode), the DC VOLTS dis­play reads 0 Volts and the DC AMPERES display reads minimum Amperes (see Note 1, below).

NOTES: 1. A minimum programmed current (actual value depends on model) is required to ensure proper

operation of the power supply under all load conditions. Programmed current is automatically set
to be at least the minimum current.

2. If an error indication is blinking in the Status display, refer to User Manual for an explanation of
error codes.

3 Rotate VOLTAGE adjust knob clockwise. Verify that DC VOLTS display increases in large (X 100)

increments.

4 Press and rotate VOLTAGE adjust knob clockwise. Verify the DC VOLTS display increases in finer

increments than step 3, then release knob.

5 Adjust VOLTAGE adjust knob clockwise until Status display reads >MAX. Tap either VOLTAGE or

CURRENT adjust knob once to enter values. Verify Status display is blank

6 Connect a digital voltmeter (DVM) to the (M+) and (M–) terminals on the rear panel.

7 Press and release DC OUTPUT switch to enable the output. Verify DC OUTPUT indicator lights.

8 Compare the programmed output voltage value (step 5) with the voltage reading of the DVM; the dif-

ference between the two should not exceed 0.05% of the maximum voltage of the unit.

9 Compare the voltage reading of the DC VOLTS display with that of the DVM; the difference between

the two should not exceed 0.1% of the maximum voltage of the unit.

10 Enter different value for output voltage, then repeat steps 4 and 5 using different values for pro-

grammed voltage.

11 Disable the output by pressing and releasing DC OUTPUT switch; verify front panel DC VOLTS and

DC AMPERES displays read 0.0V and minimal current and the DC OUTPUT indicator is off.

12 Set POWER ON/OFF circuit breaker to OFF and disconnect from source power, load and test equip-

ment.

KEPCO, INC.  131-38 SANFORD AVENUE  FLUSHING, NY. 11355 U.S.A.  TEL [phone]  FAX [phone]

4 228-1616 REV 6 070312

http://www.kepcopower.com  email: [e-mail]