The invention refers to an elevator brake controller (10), comprising - a brake supply circuit (12) comprising a rectifier with a mains input side and a DC link output side, whereby in the mains input side and/or in the DC link (DC+, DC-) output side at least one fuse (F1) is connected, - a brake control circuit (14) with at least one brake coil (C) of an elevator brake, which brake coil (C) is connected in series with a control switch (S3) configured to be controlled by an elevator control (18), which series connection of brake coil (C) and control switch (S3) is connected to the DC link (DC+, DC-), - a brake safety circuit (16) which is connected between the brake supply circuit (12) and the brake control circuit (14), which brake safety circuit (16) comprises a first safety switch (S1) being connected in series with the brake coil (C) as well as a second safety switch (S2) which is connected in parallel to the brake coil (C), whereby the first and second safety switches (S1, S2) are configured to be controlled by an elevator safety circuit (20). This brake controller offers an improved cut-off safety in safety relevant situations.


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    Titel :

    ELEVATOR BRAKE CONTROLLER


    Beteiligte:
    NAKARI ARTO (Autor:in)

    Erscheinungsdatum :

    05.04.2018


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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