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OPERATION
NORMAL MODE OPERATION
During normal operation, mains 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.
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
MAINS HIGH/LOW MODE OPERATION
If high or low voltage conditions occur, the PowerSure™ Interactive UPS will
automatically correct the mains 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 mains voltage.
Load/ Battery
Level Indicators
Utility High/Low
Utility
Alarm silence/Test
On/Off
BATTERY MODE OPERATION
Battery mode occurs in event of extreme input voltage condition or complete mains
failure. The battery system along with the bi-directional converter generates power
for the connected load.
During battery mode an alarm sounds every 10 seconds. This will change to 2 beeps
every 5 seconds when battery runs low (approximately 2 minutes remaining). Each
load/battery level indicator represents a 25% capacity level. As capacity decreases,
fewer indicators remain illuminated. Mains LED will flash every second indicating the
UPS is operating from battery mode.
Battery mode supports a full rated load for approximately 5 minutes before it shuts
down. To increase this time, turn off non essential pieces of equipment (such as idle
computers and monitors).
WARNING: Turning off the UPS while in battery mode will result in loss of output
power.
The figure below displays approximately 51-75% battery capacity remaining.
Load/ Battery
Level Indicators
Utility High/Low
Utility
Alarm silence/Test
On/Off
76% to 100% load
51% to 75% load
26% to 50% load
0% to 25% load
(Flashes to indicate low battery)
(Flashes every second)
BATTERY RECHARGE MODE
The UPS resumes normal operation once mains power is restored, whether the UPS
is ON or OFF. At this time, the bi-directional converter begins recharging the battery.
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