Front Panel Controls (Test/Alarm Reset Button); Initiating A Ups Self-Test - Compaq Pro UPS 500 Operation And Reference Manual

3-6
Front Panel Controls (TEST/ALARM
RESET Button)

Initiating a UPS Self-Test

IMPORTANT:
Performing a “Cold-Start” with load present requires more power than keeping an
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already-operating load running. You may not be able to start as large a load as
usual when performing a “Cold-Start” using the Compaq Pro UPS 500.
After performing a “Cold-Start,” the UPS drains the charge on the batteries; runtime
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is very limited.
If utility power returns, power WILL BE SUPPLIED at the Surge-Protected
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Receptacles if the unit is connected to the utility outlet.
The TEST/ALARM RESET button is a momentary switch that allows you to
initiate a UPS self-test or silence an audio alarm.
Figure 3-4. Initiating a UPS Self-Test
In the "ON" Mode, pressing and holding the TEST/ALARM RESET button
(until the UPS acknowledges with a beep) will initiate a sophisticated self-test
of the UPS batteries, full function of the backup system and the load condition
of the Battery- and Surge-Protected Receptacles. During the test period, the
load connected to the Battery- and Surge-Protected Receptacles is powered
from the batteries for about 10 seconds. All indicator lights will illuminate
briefly and an audio alarm will sound.
TEST/ALARM RESET button