ELEVATOR SAFETY CIRCUIT

An elevator safety circuit includes a plurality of relays; safety logic for monitoring status of the plurality of relays, the safety logic generating an output signal in response to the status of the plurality of relays; and a processor controlling operation of an elevator drive in response to the o...

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Bibliographische Detailangaben
Hauptverfasser: DEHMLOW MARVIN, MAGDA RICHARD F, RICHTER JOCHEN THOMAS, HORBRÜGGER HEBERT
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An elevator safety circuit includes a plurality of relays; safety logic for monitoring status of the plurality of relays, the safety logic generating an output signal in response to the status of the plurality of relays; and a processor controlling operation of an elevator drive in response to the output signal; wherein at least one of the relays is a forced guided relay and at least one of the relays is other than a forced guided relay.