Alpha Technologies FXM350_Micro350 UPS - Manual (Page 96)

017-241-B0 Rev B 94
WARNING!
Read and understand the battery safety instructions in “Product Safety Information”.
CAUTION!
Make sure all the replacement batteries are of the same type and rating. Failure to do so
could result in improper charging and damage to the batteries.
The Alpha FXM cannot provide backup battery power while the batteries are being replaced. If the line
becomes unqualified while the batteries are being replaced, the Alpha FXM shuts down and no power is
provided to the load.
8.2.5.2 Procedure
1. The Alpha FXM must be in the Line state. If it isn’t, wait until the line is qualified before proceeding.
2. Switch the Alpha FXM into the Bypass State by doing one of the following:
• From the Alpha FXM control panel, navigate to the UPS Control Menu > INV BYPASS. Press the
SELECT button once OFF is flashing. Press the SCROLL button once ON is flashing. Press the SE-
LECT button once ON is displayed continuously, indicating that the Alpha FXM has been switched
into the Bypass state.
OR
• From the Alpha UPS Monitor main screen, go to the UPS Maintenance > Unit Configuration
screen. Switch on the Bypass Mode by clicking the ON button and then the Update Configuration
button. The Alpha FXM responds by displaying a “Bypass State” alarm. This is normal and does not
indicate a problem. It will clear itself when the Bypass state is subsequently disabled.
3. Switch off the battery circuit breaker.
4. Replace the batteries.
5. Switch on the battery circuit breaker.
6. Switch the Alpha FXM out of the Bypass state by switching the Bypass Mode OFF.