Liebert 700-2200 VA - Manual (Page 11)

11
OPERATION
NORMAL MODE OPERATION
During normal operation, utility power provides energy to the UPS. The filters and
the power conditioning circuit process this power to provide computer grade power
to connected loads. The UPS maintains the batteries in a fully charged state.
The front panel displays the percentage of load on the UPS output. The figure
below indicates approximately 51-75% loading.
UTILITY HIGH/LOW MODE OPERATION
If high or low voltage conditions occur, the PowerSure™ Interactive UPS will
automatically correct the utility voltage by either lowering or raising the input
voltage condition. The UPS will continue to correct these conditions indefinitely,
without draining battery power.
The figure below indicates approximately 51-75% loading while automatically
correcting the utility voltage.
Load/ Battery
Level Indicators
Utility High/Low
Utility
Alarm silence/Test
On/Off
76% to 100% load
(Flashes to indicate overload)
51% to 75% load
26% to 50% load
0% to 25% load
LED ON
LED OFF
Load/ Battery
Level Indicators
Utility High/Low
Utility
Alarm silence/Test
On/Off