4
228-1616 REV 7
070113
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]
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 dis-
play 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.
