Alpha Technologies Micro, Micro XL, Micro XL3 UPS - Manual (Page 86)

017-237-B0 Rev A 84
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 Micro cannot provide backup battery power while the batteries are being replaced. If the line becomes
unqualified while the batteries are being replaced, the Alpha Micro shuts down and no power is provided to the
load.
Procedure
1. The Alpha Micro must be in the Line state. If it isn’t, wait until the line is qualified before proceeding.
2. Switch the Alpha Micro into the Bypass State by doing one of the following:
a. From the Logo Screen, press the SELECT button once, the LCD shows CONTROL.
Press the SELECT button once, the LCD shows INVERTER.
Press the SCROLL button once until the LCD shows INV BYPASS.
Press the SELECT button once, OFF is flashing.
Press the SCROLL button once, ON is flashing.
Press the SELECT button once, ON is solid.
b. 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 Micro 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 Micro out of the Bypass state by switching the Bypass Mode OFF.