In modern elevators, safety circuits are used for preventing the operation of an elevator having possibly safety related problems. Sometimes the problem is in the safety circuit itself, and the operation could be continued. In a disclosed arrangement, groups of at least two independent safety circuits are used. The operation of the elevator can be continued in the case where one safety circuit in each group indicates that there is a possible problem. Thus, one deficient safety switch in one safety circuit does not prevent the operation.


    Access

    Download


    Export, share and cite



    Title :

    REDUNDANT SAFETY CIRCUIT


    Contributors:

    Publication date :

    2017-12-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



    REDUNDANT SAFETY CIRCUIT

    KATTAINEN ARI / INGMAN CLAUS / STAENGLER FERENC et al. | European Patent Office | 2022

    Free access

    A Redundant Safety Circuit for Vibration Testing

    Baumgartl, R. / Ziegler, K. / European Space Agency | British Library Conference Proceedings | 2007


    Redundant safety belt

    BEUTLER JÖRG | European Patent Office | 2019

    Free access

    REDUNDANT SAFETY BELT

    BEUTLER JÖRG | European Patent Office | 2017

    Free access

    ELECTRIC REDUNDANT CIRCUIT

    VERCELLESI MARCO FRANCESCO | European Patent Office | 2015

    Free access