Table P — Alarm Submenu
LCD Shows
Problem Description
What To Do
DC_Overload
Batteries lose their ability to store power
as they age. When a battery string is
charging, the status of the battery voltage
is checked every three minutes. An alarm
is generated if the battery voltage
continues to drop while the batteries are
charging.
Info only.
Keep Alive Failure
The Alpha FXM failed to restore
communication by resetting power using
keep alive feature
Turn off keep alive feature to clear
the alarm.
AC Breaker Open
The AC breaker is open.
Ensure the AC breaker is
functioning.
Table Q — Fault Submenu
LCD Shows
Problem Description
What To Do
Overload Fault
The load draws more power than
the Alpha FXM can provide. This
can lead to an automatic Alpha
FXM shutdown.
Remove excess loads.
Short Circuit
The load has a short.
Check the output. Remove the
faulty load if necessary.
Intl Temp Fault
The
Alpha
FXM
internal
temperature is too high and could
cause an automatic Alpha FXM
shutdown.
Verify that the fan is not blocked
and that it is working by performing
a battery test. Also See Fan Fail
Alarm.
Output Over Voltage
The output voltage is above or
below
the
Alpha
FXM
specifications.
Info only.
Output Voltage Low
Battery Fail
In Inverter mode, the battery
voltage has dropped below a
specified level. This fault is
triggered and the inverter shuts
down. This fault is also known as a
Low Battery Shutdown or Bad
Battery.
Info only. The Alpha FXM will
recharge the battery when the
Alpha FXM requalifies the line.
Backfeed
A relay inside the Alpha FXM has
failed. It cannot be fixed in the
field.
DANGER:
Do NOT touch the AC
input terminals. Contact Alpha and
Outback
Energy
Technical
Support.
Battery Over Voltage
Battery voltage is abnormally high.
Check the voltage at the battery
voltage test points. Ensure that the
battery is in good working
condition. Replace the battery if
necessary.
Batt Volt Low
Battery voltage is low and is close
to the self-kill level.
Ensure that the Alpha FXM
charger is working. If the charging
voltage is low, the battery may
need to be replaced.
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