To detect an entrapment situation when a driven component is adjusted using a mechanical adjustment system which has an electric motor, a value relating to the force acting upon the driven component is compared with a threshold value relating to a reference value. The circuit also includes several registers indicating the location of new words to be written, each of the indicative registers being coupled with one of the cache registers adapted to ensuring the writing into the memory. The mixer system further includes a locking mechanism located at least partially on one of the bowl or the mixer body, the locking mechanism being normally biased into a locking position.