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.
Elevator safety circuit
2015-12-02
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |