Up to six doors on mechanical separating protective equipment can be centrally monitored with the non-contact RE 4000 safety system. The system, consisting of an evaluation unit with sensors and actuators, is certified as category 4 according to EN 954-1. Thus, the system can be used in potentially highly hazardous machines.
The sensor's magnetically coded reed contacts are designed in the NO/NC contact combination, and thus provide the necessary redundancy and diversity. In addition, coding ensures an appropriate level of tamper-proofing.
Unlike in individual systems, up to six sensors can be connected to the evaluation unit of the RE 4000. The system has integrated manual restart and external device monitoring functions. In addition to savings on relays and cabling, these factors also offer practical advantages during operation.
For example, the evaluation unit shows the state of each individual door at a central location by means of six integrated LEDs - considerably simplifying commission of the system and servicing of the machine. On the output side, three safe channels, a signal contact, and a time-delayed output offer maximum flexibility during integration in the control system.
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