112113
228-1692 REV 3
5
KEPCO, INC.
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131-38 SANFORD AVENUE
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FLUSHING, NY. 11355 U.S.A.
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TEL (718) 461-7000
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FAX (718) 767-1102
http://www.kepcopower.com
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email: [email protected]
VI — PRELIMINARY OPERATIONAL CHECK.
A simple operational check after unpacking and
before equipment installation is advisable to ascer-
tain whether the power supply has suffered damage
resulting from shipping.
1. With POWER switch set to off position, connect
the power supply to source power (see “Input
Connections.” on page 5.
2. With no load connected, set POWER switch to
the ON position. Each time the unit is turned on
an internal self-test is performed. If all tests pass,
the unit goes into the default mode. If a failure
occurs, the failure is displayed. Figure 5 shows
the factory-configured power on defaults dis-
played on the LCD.
3. Connect a digital voltmeter (DVM) (resolution and
accuracy of 0.01% or better) to the OUT S and
COM S terminals at the rear panel terminal block.
4. Use the keypad to enter the rated maximum volt-
age of the power supply (e.g., enter 36 for a
model BOP 36-28MG) and press
ENTER
. If
STANDBY indicator is lit, press
STANDBY
key.
5. Verify DVM voltage reading agrees with pro-
grammed voltage within 0.03% of rated maximum
voltage and agrees with displayed voltage on
LCD within 0.05% of rated maximum voltage.
VII — INSTALLATION.
Install units either on a bench or in a 19 inch-wide
rack. For rack mounting: remove four feet first; rack
must provide support at the rear). Optional slides
may be used. Leave the front and rear panels clear
of obstructions to ensure adequate cooling. For par-
allel, series and master-slave configurations, refer to
the Operator’s Manual.
INPUT CONNECTIONS.
Source power is con-
nected to the power supply via three-wire input
power using the source power mating connector
supplied (see Table 3). This power supply operates
from single phase a-c mains power (or between two
phases of 3-phase a-c mains power), 230V, 50/60Hz
nominal (range: 176 - 264V, 47-63Hz) without any
need for range selection. The user must provide a
properly sized and rated mains lead (line cord) and
service with a current rating compatible with the
anticipated input current. Line cords available as
accessories are listed in Table 3. Plug the source
power connector into the source power inlet connec-
tor at the rear panel.
LOAD CONNECTIONS.
Power connections re-
quire wires that are properly rated for the nominal out-
put current of the unit. Connect the load to the OUT-
PUT and COMMON power terminals on the rear
panel (see Figure 3). OUT S and COM S terminal of
the Monitor and Sensing Terminal block are for con-
nection of remote sensing leads (after removing the
factory-installed local sensing links).
NOTE: Output
Sense lines must be connected for proper opera-
tion, either locally, or at the load (remote).
Also
use OUT S and COM S to monitor voltage at the
load using external equipment such as a DVM, oscil-
loscope, etc. Use OUT MON and COM MON to
monitor voltage at the BOP output.
It is critical that configurations comprised of BOP,
load, and external programming devices, have a sin-
gle earth-ground point. Observe the following cau-
tion and refer to the applicable BOP 1KW-MG
Operator Manual for earth-ground recommenda-
tions.
Failure to observe this caution will void the
warranty!
CAUTION: Never connect both the load
terminal tied to the BOP COM terminal
and the programming device common
to earth-ground. This compromises
accuracy and will cause catastrophic
damage to the BOP if the connection
between BOP COM and the load termi-
nal tied to earth-ground is lost.
LOCAL SENSING (FACTORY DEFAULT).
Unit is shipped with local sensing links installed:
OUT S connected to OUT MON and COM MON
connected to COM S (see Figure 4A).
REMOTE SENSING SELECT.
First remove the
factory-installed local sensing links between OUT S
and OUT MON and between COM MON and COM
S. Then connect the OUT S and COM S lines at the
load (see Figure 4B) using #22 AWG wire, twisted
pair.
ANALOG I/O CONNECTIONS.
The Analog I/O
Port connector, located on the rear panel of the BOP
1KW power supply (see Figure 3), provides access
to analog programming inputs which can control the
mode of operation (voltage or current), output volt-
age or current, and establish positive and negative
voltage and current limits. An output analog corre-
sponding to output current is also provided. Refer to
Operator’s manual for details.
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