A safety monitoring device monitoring safety-related states in a passenger conveyor system has first and second double contact relays each controlled by a control voltage to switch first and second normally open contacts and a feedback contact synchronously between an open and closed relay states. First and second controllers each determine properties of the system correlated with safety-related states and in dependence generate the control voltages. The controllers and two double contact relays form first and second safety monitoring switch arrangements for monitoring first and second safety-related states and correspondingly switch first and second switching states within a safety monitoring chain of the system. The first arrangement includes the first contact of the first connected in series with the first contact of the second relay. The second arrangement includes the second contact of the first relay connected in parallel with the second contact of the second relay.
SICHERHEITSÜBERWACHUNGSVORRICHTUNG ZUM ÜBERWACHEN VON SICHERHEITSRELEVANTEN ZUSTÄNDEN IN EINER PERSONENFÖRDERANLAGE SOWIE VERFAHREN ZUM BETREIBEN DERSELBEN
SAFETY MONITORING DEVICE FOR MONITORING OF SAFETY CONDITIONS IN A DEVICE FOR TRANSPORTING PEOPLE AND METHOD FOR OPERATING THE SAME
DISPOSITIF DE SURVEILLANCE DE SÉCURITÉ DESTINÉ À SURVEILLER DES CONDITIONS RELATIVES À LA SÉCURITÉ DANS UNE INSTALLATION DE TRANSPORT DE PERSONNES AINSI QUE PROCÉDÉ DE FONCTIONNEMENT D'UN TEL DISPOSITIF
2021-12-01
Patent
Electronic Resource
German
IPC: | B66B Aufzüge , ELEVATORS |
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