Siemens A7991 fault code meaning

Series: V90

Motor data detection in progress

servo drive

Meaning: Message class: Parameter setting/configuration/commissioning error (18). Motor data detection is activated. Motor data detection starts at the next switch-on command. This alarm clears automatically after motor data detection is completed successfully. If power-on or a warm restart occurs after motor data detection is selected, the selection is lost. Motor data detection must be selected again manually after startup.

Possible causes

Source: SINAMICS V90 PROFINET, SIMOTICS S-1FL6 Operating Instructions P396