Operation On Battery Power; Battery Duration - MGE UPS Systems EXL 1000 User Manual

EXL 1000 Uninterruptible Power System
3.8 Operation on
battery power
Figure
I n d i c a t o rs w h e n o n b a t t e r y p ow e r
3-15
beep...beep...
audible alarm
"battery status" LED
"load protected" LED
Figure
D i a g r a m o f o p e r a t i o n o n b a t t e r y p ow e r
3-16
AC input
3.9

Battery duration

3 — 8
When AC input power fails or exceeds tolerances, the
rectifier and the battery charger shut down. The battery
supplies the power required by the inverter to supply the
load.
The battery discharges.
The green "load protected" light is on.
The user is warned of operation on battery power by the
audible alarm and by the orange "battery status" light (figure
3-15). This information is also available via the standard
communication connector.
I O
+ –
rectifier
charger
EXL 1000 has a battery monitoring function that calculates
the
implemented with a communications option.
A low battery shutdown warning signal is available via the
standard communication connector for remote indications. It
warns the user of upcoming battery shutdown at a user-
determined level of remaining power.
On the UPS itself, the audible alarm beeps louder and more
rapidly, and the orange "battery status" light flashes.
static bypass
load
inverter
battery
remaining backup
Operation
time. This function may be
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