A6B1 warning in ABB DCS880 drive indicates user pass code not confirmed. This means a new user pass code has been entered, but not confirmed yet.

1. A new user pass code has been entered in 96.100 Change user pass code. Confirm the new pass code by entering the same code in 96.101 Confirm user pass code.
2. To cancel, close the user lock without confirming the new code.
3. To close the user lock, enter an invalid user pass code into 96.07 Pass code then activate 96.27 Control board boot or cycle the power.