User Manual

79
017-230-B4 Rev B
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 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.
Table R — Problems Not Reported by System
LCD Shows Problem Description What To Do
No LCD display even when the
Alpha FXM is powered on
The LCD may not function below
-15ºC. This does not affect the normal
operation of the Alpha FXM.
Bring the operating temperature
above -15ºC and the LCD display will
gradually resume operation.
Date and time reset to 00:01:00 and
00:00:00
The backup lithium coin battery may
need to be replaced. This is possible
if the Alpha FXM has been in storage
or switched off for a prolonged period.
The average operating life of the lithium
coin battery is about 5 years.
Replace the lithium coin battery.
Caution: This must be performed by a
qualified service personnel. Dispose of
used batteries according to your local
laws and jurisdictions.