Transponder-Coded Read Heads with External Evaluation

The read head is fastened to the fixed part of the safety guard and is connected to the evaluation unit via a two-conductor shielded cable. The actuator fastened to the safety guard is moved towards the read head by closing the door. When the switch-on distance is reached, power is supplied to the actuator via the read head and the read head transfers the actuator’s data to the evaluation unit.