Controls and Indicators
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6.0 CONTROLS AND INDICATORS

6.1 ON/Alarm Silence/Battery Test Button

This button controls output power to connected load(s) and has three functions:
•On
• Alarm Silence
•Battery Test
ON—When the UPS is Off, pressing the ON/Alarm Silence/Battery Test button for more than one
(1) second will start the UPS, and an audible alarm sounds briefly. The UPS is capable of starting on
battery (battery start).
Alarm Silence—When a UPS audible alarm is active, pressing and releasing the ON/Alarm Silence/
Battery Test button will silence the active audible alarm, whether utility power is present or not.
Once the alarm silence function has been activated, all active audible alarms will remain silenced
until a new alarm condition is detected.
Battery Test—To initiate a manual battery test, press the ON/Alarm Silence/Battery Test button for
at least one second while operating from utility power with no alarm conditions present.
• If all five (5) Battery indicators are not illuminated, allow the UPS to recharge the batteries for
24 hours.
• After 24 hours, retest the batteries.
• After the batteries have been retested, if all five (5) Battery indicators are not illuminated, con-
tact your local dealer, Liebert representative or Liebert Worldwide Support Group.

6.2 OFF Button

When the UPS is on (in either Normal or Battery mode), pressing the OFF button for more
than one (1) second will shut down the UPS. An audible alarm sounds briefly.
NOTE
The LOW BATTERY, OVER TEMP and OVERLOAD warning
audible alarms CANNOT be silenced.
All indicators illuminated
for illustrative purposes only.