Alpha Technologies FXM 650, 1100, 2000 UPS - Manual (Page 80)

017-230-B4 Rev B 78
8. Troubleshooting
When the front panel alarm LED is illuminated or flashing, the Alpha FXM has a malfunction. The alarm and fault
submenus describe the malfunction. The Alpha UPS Monitor can also be used for troubleshooting.
8.1 Procedure
1. Press the SELECT button.
2. The LCD may display one or more conditions in the following table.
3. Press the SCROLL button to see if more than one malfunction is present.
4. To clear the malfunction from the screen, press and hold the SELECT button for 5 seconds.
Table P — Alarm Submenu
LCD Shows Problem Description What To Do
Over Load The Alpha FXM is overloaded. Remove excess loads.
Batt Temp High
The battery temperature is above the
specification limit.
If used, ensure that the battery fan
is working. Contact Alpha Technical
Support to purchase an upgrade if
required.
Batt Temp Low
The battery temperature is below the
specification limit.
Use optional battery heating mats or
heater. Contact Alpha technical support
to place the order.
Batt Low Warning
The batteries are almost discharged. Also see
Low Battery Warning in "UPS Maintenance >
Battery" on page 38.
Ensure that the Alpha FXM charger is
working. If the charging voltage is low,
the battery may need to be replaced.
FAN Alarm The fan has failed.
Contact Alpha technical support. The
fan is not a replaceable part.
Temp Probe Unplug The temperature probe is unplugged.
Plug it back into the Alpha FXM or
change the probe.
User Input Alarm
When the user input is shorted. See "UPS
Maintenance > User Input" on page 46
Check the user input parameters.
In Freq Out Of Range
The line frequency is outside of the Alpha FXM
allowable range. The Alpha FXM goes into
Inverter mode.
Info only.
Weak Battery
The battery is being monitored continuously
in the background in Line mode. This alarm
is issued if the battery did not pass the
background scan.
Check the battery life and replace the
battery if necessary.
Battery Test The Alpha FXM is performing a battery test. Info only.
Batt Breaker Open The battery breaker is opened.
Ensure the battery breaker is
functioning.
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.