To provide an encoder diagnostic system of an elevator and a diagnostic method capable of suppressing an input/output port occupancy and functional restrictions, and capable of detecting an abnormality or a failure of two-lines encoders.SOLUTION: An encoder diagnostic system of an elevator according to the present invention comprises a first encoder 16a and a second encoder 16b arranged in the rotary part of the elevator, a first diagnostic part 21a connected to the first encoder, and a second diagnostic part 21b connected to the second encoder. The encoder diagnostic system of the elevator has a first determination part 23a and a second determination part 23b which detect the difference between the rotation detection signal of the own line encoder and the rotation detection signal of the other line encoder and which determine that it is abnormal if the difference exceeds a predetermined threshold.SELECTED DRAWING: Figure 2

    【課題】本発明は、入出力ポートの占有や機能制限を抑え、二系統のエンコーダーの異常や故障を検知できるエレベーターのエンコーダー診断システム及び診断方法を提供する。【解決手段】本発明のエレベーターのエンコーダー診断システムは、エレベーターの回転部に配備された第1エンコーダー16aと第2エンコーダー16bと、前記第1エンコーダーに接続された第1診断部21aと、前記第2エンコーダーに接続された第2診断部21bと、を具え、自系統のエンコーダー回転量と、他系統のエンコーダーの回転検出信号の差異を検出し、当該差異が所定の閾値を超えた場合に異常と判定する第1判定部23aと第2判定部23bを有する。【選択図】図2


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    Title :

    ENCODER DIAGNOSTIC SYSTEM OF ELEVATOR AND DIAGNOSTIC METHOD


    Additional title:

    エレベーターのエンコーダー診断システム及び診断方法


    Contributors:

    Publication date :

    2021-02-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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