AEG PROTECT D LCD+ User Manual page 81

Conditions Possible cause
The UPS
does not
The batteries need
provide the
charging or service.
expected
backup time.
Bypass mode An overload or a fault
has occurred, or a
command has been
received and the UPS
LED is on.
is in Bypass mode. Or
auto bypass function is
enabled.
Power Power requirements
overload exceed the UPS
capacity (greater than
105% of nominal;
LED is On.
1 beep every
second.
over The UPS internal
temperature temperature is too high.
warning At the warning level,
the UPS generates the
alarm but remains in
the current operating
LED is On.
state.
1 beep every
second.
The UPS The input source is not
does not start. connected correctly.
The Remote Power Off
(RPO) switch is active
or the RPO connector
is missing.
Action
Apply utility power for 48 hours to
charge the batteries. If the
condition persists, contact your
service representative.
Equipment is powered but not
protected by the UPS. Check for
one of the following alarms:
overtemperature, overload, UPS
failure or auto bypass setting.
Remove some of the equipment
from the UPS. The alarm resets
when the condition becomes
inactive.
Clear vents and remove any heat
sources. Ensure the airflow
around the UPS is not restricted.
Check the input connections.
If the UPS Status menu displays
the "Remote Power Off" notice,
inactivate the RPO input.
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