An elevator drive apparatus is described which comprises a drive unit (36, 37) for driving an elevator car (32), a brake device (35) for braking a motion of the elevator car (32), a detector (60) for detecting an electrical operation amount of the drive unit (36, 37), and a controller (50). The controller (50) is configured to release the brake device (35), to compare the detected electrical operation amount with a threshold, and to apply the brake device (35) when the detected electrical operation amount exceeds the threshold. In this way, it is ensured that a speed of the elevator car in case of a rescue situation is within a safety limit.


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    Title :

    MOTION FEEDBACK IN AN ELEVATOR


    Additional title:

    BEWEGUNGSFEEDBACK IN EINEM AUFZUG
    RÉTROACTION DE MOUVEMENT DANS UN ASCENSEUR


    Contributors:

    Publication date :

    2019-06-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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