Contact sensor module and safety system with a contact sensor module for safe operation of an electrical device

摘要

The invention attacked a touch sensor module (52) for a security system (54) of an electrical device (10) with a first sensor electrode (64) for the detection of a contact by a operator. It is proposed that the contact sensor module (52) has at least one second sensor electrode (66) for the detection of a contact by the operator, with the sensor electrodes (64, 66) assigned to at least one mass electrode (168) that acts as a counter-electrode to the sensor electrodes (64,(66) works. In addition, the invention concerns a security system (54) for an electrical device (10) with a majority of the inventive touch sensor modules (52) and with an evaluation electronics (122). It is proposed that the evaluation logic (122) the output signals (S11, S21, S31, S41) of all first sensor electrodes (64) of the contact sensor module (52) to a first sensor signal (S1) and the output signals (S12, S22, S32, S42) all at least second sensor electrodes (64) of the contact sensor module (54) logically connected to at least one second sensor signal (S2).