Provided is an elevator derailment detection device, which is configured to bring a first conductive wire and a second conductive wire, which are provided in a hoistway in parallel with an elevating direction of an elevating body, into conduction with each other when derailment occurs, to thereby increase a voltage applied to the second conductive wire to a level higher than a voltage applied to the second conductive wire when no derailment has occurred, and is configured to detect the derailment through detection of the increase in voltage. The elevator derailment detection device is configured to inspect the behavior of a diagnosis target by performing control to switch a state of connection between a power supply unit and the diagnosis target between a conductive state and a non-conductive state, to thereby diagnose soundness of the diagnosis target.


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    Title :

    ELEVATOR DERAILMENT DETECTION DEVICE


    Contributors:
    KOIDE KAZUAKI (author) / HARA YUYA (author)

    Publication date :

    2021-11-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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