ABB E21E fault code meaning
ABB / E21E
Series: ACS580MV
Backup control power warning
drive
Meaning: A backup control power warning was detected through digital signal monitoring.
Possible causes
Source: ACS580MV Firmware Manual P326
ABB / E21E
drive
Meaning: A backup control power warning was detected through digital signal monitoring.
Source: ACS580MV Firmware Manual P326