Liebert PSP - Manual (Page 15)

11
C ONTROLS AND I NDICATORS
ON/OFF/Alarm Silence Button
This button controls output power to the
connected load and has three functions:
• ON
• OFF
• Alarm Silence
ON When the UPS is off, pressing and releasing the main ON/
OFF button will start the UPS, and an audible alarm sounds
briefly. The UPS is capable of starting on battery (battery
start).
OFF When the UPS is on (in either Normal or Battery mode),
pressing the main ON/OFF button for more than
two (2) seconds will shut down the UPS. An audible alarm
sounds briefly.
Alarm
Silence
When a UPS alarm is active, pressing and releasing the
main ON/OFF 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—except for low battery, overload, or over-tempera-
ture conditions—will remain silenced until a new alarm con-
dition is detected.
NOTE
Do not hold ON/OFF button down for more than 2 seconds
or the UPS will shut down.
ON/OFF/Alarm Silence