Control Unit Battery - ABB ACS880-37 Hardware Manual

178 Maintenance

Control unit battery


Replace the real-time clock battery if the BATT OK LED is not illuminated when the control
unit is powered. For information on the LED, see
page 132.
1. Do the steps in section
work.
2. Undo the fastening screw and remove the battery
3. Replace the battery with a new BR2032 battery.
4. Dispose of the old battery according to local disposal rules or applicable laws.
5. Set the real-time clock.
Electrical safety precautions
Control unit layout and connections
(page 19) before you start the
on