When at least one of a value a detected output current to a magnet and a magnet load defined by the following formula is equal to or larger than a threshold value predetermined for the value of the detected output current or a threshold value predetermined for the magnet load, a controller constituting a control device outputs, to a control circuit, a command to decrease voltage applied to the magnet from next attracting operation. Magnet load=excitation ratio×I×V . . . ; wherein excitation ratio: excitation time/(excitation time+non-excitation time); I: value of the output current; V: voltage applied to a lifting magnet.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Control device for lifting magnet


    Beteiligte:
    YUMOTO NATSUKI (Autor:in) / YOSHIHARA HIDEKI (Autor:in)

    Erscheinungsdatum :

    2021-04-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66C Krane , CRANES / H01F MAGNETS , Magnete



    CONTROL DEVICE FOR LIFTING MAGNET

    YUZUMOTO NATSUKI / YOSHIHARA HIDEKI | Europäisches Patentamt | 2018

    Freier Zugriff

    CONTROL DEVICE FOR LIFTING MAGNET

    YUMOTO NATSUKI / YOSHIHARA HIDEKI | Europäisches Patentamt | 2021

    Freier Zugriff

    CONTROL DEVICE FOR LIFTING MAGNET

    YUMOTO NATSUKI / YOSHIHARA HIDEKI | Europäisches Patentamt | 2018

    Freier Zugriff

    CONTROL DEVICE FOR LIFTING MAGNET

    YUMOTO NATSUKI / YOSHIHARA HIDEKI | Europäisches Patentamt | 2019

    Freier Zugriff

    LIFTING MAGNET CONTROL SYSTEM AND LIFTING MAGNET CONTROL METHOD

    WATANABE DAICHI / NAKATA YUICHI | Europäisches Patentamt | 2022

    Freier Zugriff