15
CAUTION
When the UPS is in Normal On-line mode, pressing the BYPASS button once will put the UPS
into BYPASS MODE. During this time, should the utility power become unavailable, the UPS
will shut down.
Once the unit is in BYPASS MODE operation, pressing this button again will force UPS back to
On-line operation.
5.0 OPERATION
OPERATING MODES
The display shows the UPS status through the graph LCD for each mode
.
NORMAL ON-LINE MODE
During normal on-line operation, utility power provides energy to the UPS. The filters, power
factor corrector and the inverter process the power to provide computer grade power to
connected loads. The UPS maintains the batteries in a fully charged state.
All indicators are stable except Alarm Buzzer. The LCD displays
the % of load, Inverter, PFC, Line, Charger and Battery. The Fan is
at medium speed.
The Solid line shows the power flow from input to load and
battery. The load is being powered from the UPS inverter.
BATTERY MODE
Battery mode is displayed during high input voltage conditions or a utility power failure. When
in battery mode, the UPS battery supplies energy through the DC to DC converter to the
Inverter to power the connected load. During the battery discharging, the audible alarm beeps.
The rate of the beeping will increase as the battery runs low (low battery), prior to UPS shut
down. Once this warning is sounded, you have less than a minute of battery runtime left.
When utility power has been restored, after UPS has shutdown, the UPS will automatically
restart. For approximate battery run times, refer to the Battery Run Time charts in this manual.
The run-time is based on a resistive load and an ambient temperature of 77
o
F (25
o
C)
The Display shows the UPS in BATTERY MODE. The solid line is
from battery to inverter with boost illuminated. The Fan high
speed mode is illuminated. The bars, in the battery display
indicate the amount of battery capacity remaining; each bar
represents a 25% capacity level. As capacity decreases, fewer
bars remain illuminated. When the input voltage returns, the
charger indicator will illuminate.
