Lcd Description - AEG PROTECT D LCD+ User Manual

4.2 LCD description

The LCD backlight automatically dims after 10 minutes of
inactivity. Press any button to restore the screen.
Operation
Cause
status
Standby
mode
Online mode
Battery mode
1 beep
every 4
seconds
Battery mode
with battery
1 beep
low
every 1
seconds
Description
The UPS is Off without output.
The UPS is operating normally and
protecting the equipment.
A utility failure has occurred, and the
UPS is powering the equipment with
battery.
Prepare your equipment for
shutdown.
This warning is approximate, and
the actual time to shutdown may
vary significantly.
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EN