MOTOR CONTROLLERS AND METHODS FOR CONTROLLING DRIVE CIRCUIT BYPASS SIGNALS

    公开(公告)号:US20190319569A1

    公开(公告)日:2019-10-17

    申请号:US15954027

    申请日:2018-04-16

    Abstract: Motor controllers and methods for controlling drive circuit bypass signals are provided. The motor controller includes a drive circuit configured to generate variable frequency power based on input power received from a power source, and a drive contactor coupled between an output of the drive circuit and the motor. The drive contactor is configured to couple the drive circuit to the motor when a drive enable signal is received from an external controller, and decouple a line power enable signal from a line contactor by the external controller based on a presence of the drive enable signal. The line contactor is configured to couple the motor directly to the power source when the line power enable signal is received by the line contactor.

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