KEPCO ATE (all models) QUICK START GUIDE - Manual (Page 8)

8 228-1757 021012
KEPCO, INC. 131-38 SANFORD AVENUE FLUSHING, NY. 11355 U.S.A. TEL (718) 461-7000 FAX (718) 767-1102
http://www.kepcopower.com email: [email protected]
1. With the load disconnected from the power supply turn
SET LEVEL control fully clockwise and set a-c power
ON/OFF switch/circuit breaker to ON.
2. Observe front panel VOLTMETER and set VOLTAGE
control to desired value at which crowbar must trigger
(NOT to the actual operating voltage).
3. Depress the DISARM button (and keep it depressed)
while turning the crowbar SET LEVEL control counter-
clockwise, until the SET LEVEL indicator goes on (sim-
ulated crowbar action).
4. Turn VOLTAGE control slightly counterclockwise to the
actual operating voltage and release the DISARM but-
ton. NOTE: This adjustment establishes the threshold
i.e., the difference voltage between the output voltage
and the voltage at which the power supply will “crow-
bar.” For minimum false triggering use the largest
threshold your load can tolerate.
5. To check the adjusted crowbar trigger level, depress
DISARM push button and turn VOLTAGE control
clockwise. Observe front panel VOLTMETER and note
the voltage at which the crowbar SET LEVEL indicator
goes on. Correct SET LEVEL adjustment as described
above if necessary. Readjustment of the SET LEVEL
control may be required after load and power supply
have reached thermal equilibrium.
NOTE: If an exact crowbar point at a remote load must be
established, remote error sensing, must be used
(see PAR 3.4).
6. Reduce power supply output voltage to its operating
value.
4.4. ADDITIONAL FEATURES. The following fea-
tures of the ATE power supply are covered in the full
Operator manual (see PAR. 1.1).
• Remote Programming of the Voltage Control
Channel
• Remote Programming of the Current Control
Channel
• Remote Programming of Crowbar Level
• Automatic Tracking of Crowbar Level
• Use of EXT Current Comparison Amplifier
• Multiple System Control
• Series/Parallel Operation
• Use of Uncommitted Amplifiers and Isolated Flag
Signals