Siemens A7971 fault code meaning

Siemens / A7971

Series: V90

Commutation angle offset determination activated

servo drive

Meaning: Message class: Parameter setting/configuration/commissioning error (18). Automatic determination of the commutation angle offset (encoder adjustment) is activated. Automatic determination will be performed at the next switch-on command. This alarm clears automatically after determination is complete.

Possible causes

Source: SINAMICS V90 PROFINET, SIMOTICS S-1FL6 Operating Instructions P395