ABB A1 fault code meaning

ABB / A1

Series: ACS400

Operation failure

drive

Meaning: Parameter upload or download failed. The software versions of the drives may not be compatible. Software version can be seen from parameter 3301 SOFTWARE VERSION.

Possible causes

Source: ACS400 User's Manual Rev C (EN, official site)

Series: DCS400

Parameters Added

DC drive

Meaning:

Possible causes

Source: DCS400 Manual (EN, official site)