To detect the abnormality related to a brake even when a brake voltage command value maintains a constant state (a rated maximum value).SOLUTION: One embodiment mode of the invention includes a brake body for performing braking by pressing a movable iron piece to a disk by releasing energization to a brake coil, a current sensor for detecting an electric current flowing through the brake coil as a brake current, a brake driving circuit unit for controlling the electric current flowing through the brake coil, and an abnormality determination unit for determining whether or not the brake abnormality is generated by monitoring a rising waveform of the brake current of the brake coil detected by the current sensor during a suction period at which the operation for separating a lining from a braking surface of the disk is completed by suction.SELECTED DRAWING: Figure 1

    【課題】、ブレーキ電圧指令値が一定状態(定格最大値)の場合でも、ブレーキに係る異常を検出する。【解決手段】本発明の一態様は、ブレーキコイルへの通電解除により可動鉄片をディスクに押圧して制動を行うブレーキ体と、ブレーキコイルに流れている電流をブレーキ電流として検出する電流センサと、ブレーキコイルに流す電流を制御するブレーキ駆動回路部と、吸引によってライニングをディスクの制動面から離間させる動作が完了する吸引期間に、電流センサで検出されるブレーキコイルのブレーキ電流の立ち上がり波形を監視することでブレーキ異常の有無を判定する異常判定部と、を備える。【選択図】図1


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    Title :

    ELEVATOR, BRAKE DEVICE, AND BRAKE ABNORMALITY DETECTION METHOD


    Additional title:

    エレベーター、ブレーキ装置及びブレーキ異常検出方法


    Contributors:

    Publication date :

    2019-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



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