The read head is fastened to the fixed part of the safety guard and is connected to the evaluation unit via a two-core screened 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.
The read head is fastened to the fixed part of the safety guard and is connected to the evaluation unit via a two-core screened 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.
Magnetically-coded read heads
Reed contacts are installed in the read head of the safety system CMS. The operating principle for the reed contacts (NC contacts or NO contacts), the number of reed contacts fitted and their physical arrangement determine the type of read head. The contacts blades on the reed contacts will close when under the influence of the magnetic field from the actuator.