AC INPUT LEDs
Line voltage high, UPS
red
on battery
UPS on AC input. If LED
is not lit UPS is on battery
green
power. LED flashes when a
site wiring fault is detected
Line voltage low, UPS on
red
battery
If all LEDs are solid,
input frequency is outside
selected frequency range
ON
Output LED
ON
Lit when power
is present at rear output
receptacles/terminals
LOAD LEDs
BATTERY
LEVEL LEDs
green
> 90%
green
green
green
Impending
red
low battery
* On single-phase units, the LEDs
Line 1*
Line 2*
red
overload
green
75-100%
green
50-75%
green
25-50%
green
5-25%
for Line 1 and 2 indicate the same
load information
BATTERY
SERVICE LED
Solid red if
battery needs
service
BYPASS LED
Solid red if in
bypass mode
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