An encoder failure in an elevator drive system is detected and managed. A velocity of the elevator drive system is provided by an encoder signal (60) and compared with a minimum velocity threshold (62). An encoder fault timer is incremented when the velocity is less than the minimum velocity threshold (64). The elevator drive system is disabled when the encoder fault timer reaches a fault threshold time (66).


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    Title :

    Managing an encoder malfunction in an elevator drive system


    Additional title:

    Verwaltung einer Fehlfunktion eines Codierers in einem Aufzugsantriebssystem
    Gestion d'une defaillance du dispositif de codage d'un système de commande d'un ascenseur


    Contributors:

    Publication date :

    2017-07-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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