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With manually fed presses, after placing in the work piece the operator must press two hand-activated buttons outside the danger zone with both hands at almost the exact same time to start the next machine production step. This guarantees that both hands are outside the danger zone and the existing safety requirements are satisfied.
The MSI-2H Safety Relay is the link between these activation elements and the machine control system; it acts as two-hand relay in accordance with EN 574 type III C. The device checks the simultaneous activation of the buttons and ensures a controlled process start. The module is used everywhere that feeding-in is not automatic, but rather has to be performed manually by people.
These kinds of situations frequently arise in electronics production and in plate metal processing. The use as protective door monitors in accordance with EN 60204-1 Stop-0 is also possible.
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