CAUTION
When the UPS is in Normal On-line mode, pressing the bypass button once will put the UPS
into Bypass Mode. While in bypass, should the utility power become unavailable, the UPS
output will turn off and the UPS will shut down.
Once the unit is in Bypass Mode operation, pressing this button again will force UPS back to
on-line mode operation.
5.0 UPS OPERATION
OPERATING MODES (LCD models only, LED models are self-explanatory)
T
he following outlines the UPS status for each mode of operation as displayed by the LCD.
NORMAL ON-LINE MODE OPERATION
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.
The LCD display icon configuration on the left indicates on-line mode
operation, indicating the percent of load, inverter, PFC, line, charger
and battery operation and status. The fan is shown at medium
speed.
The dark, solid line on the MIMIC portion of the display indicates the
normal mode power flow from input, through the inverter, to load and
from the input, to the charger and into the battery.
BATTERY MODE OPERATION
The battery mode icon configuration is displayed during a loss of utility power or during excessively
high line voltage conditions. When in battery mode, the UPS battery supplies energy to the DC to
DC converter, and then on to the inverter, which powers the connected load. During the battery
discharging, the audible alarm will beep. The rate of the beeping will increase as the battery runs low
(low battery), prior to UPS shut down. Once the low battery warning is sounded, there will be about
one minute of battery runtime remaining.
After the UPS has shut down, when utility power has been restored, the UPS will automatically
restart. For approximate battery run times, refer to the specifications and extended battery runtime
chart in this manual. The runtime is based on a resistive load being connected to the UPS
output, and an ambient temperature of 77ºF (25ºC).
The LCD display icon configuration on the left indicates the UPS is
in Battery Mode. The dark solid line indicates battery power flow to
the DC to DC converter and on to the inverter. The fan is shown in
high speed mode. The bars inside the battery icon indicate the
amount of battery capacity remaining; each bar represents a 25%
capacity increment. As capacity decreases, fewer bars will remain
illuminated. The charger icon is turned off.
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