To provide an electromagnetic brake control device for a lift capable of, with a simple structure, controlling an electromagnetic brake so as to suppress an impact applied to passengers in a cage of an elevator when the cage stops.SOLUTION: An electromagnetic brake control device of the invention comprises: a rectifier 11 for performing full-wave rectification on voltage of an AC power source 8; switching means 14 for switching on/off an application of the full-wave rectified voltage of the AC power source 8 to a brake coil 4 of an electromagnetic brake; voltage setting means 17 for setting a target value of an effective voltage to be applied to the brake coil 4 as a duty ratio of switching on/off the application of the voltage of the AC power source 8 to the brake coil 4; and arithmetic processing means 15 for switching on/off switching means 13a-b at a zero crossing point of a voltage waveform of the AC power source 8 on the basis of the target value of the effective voltage sent from the voltage setting means 17. The arithmetic processing means 15 determines whether to switch on the switching means 14 every half period of the AC power source 8.SELECTED DRAWING: Figure 1

    【課題】簡単な構成で、エレベータのかごの停止時にかご内の乗客に与える衝撃が抑制されるように電磁ブレーキを制御することができる昇降機用電磁ブレーキ制御装置を提供する。【解決手段】本発明の電磁ブレーキ制御装置は、交流電源8の電圧を全波整流する整流器11と、全波整流された交流電源8の電圧の電磁ブレーキのブレーキコイル4への印加をオンオフするスイッチング手段14と、ブレーキコイル4に印加される実効電圧の目標値が、交流電源8の電圧のブレーキコイル4への印加のオンオフのデューティ比として設定される電圧設定手段17と、電圧設定手段17から送られる実効電圧の目標値に基づいて、交流電源8の電圧波形のゼロクロス点でスイッチング手段13a-bをオンオフする演算処理手段15とを備えており、演算処理手段15は、交流電源8の半周期毎にスイッチング手段14をオンにするか否かを判断する。【選択図】図1


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    Title :

    ELECTROMAGNETIC BRAKE CONTROL DEVICE FOR LIFT


    Additional title:

    昇降機用電磁ブレーキ制御装置


    Contributors:

    Publication date :

    2023-11-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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