MAGNETIC HIGH VOLTAGE INTERLOCK LOOP (HVIL) FOR VARIABLE FREQUENCY DRIVES IN TRANSPORT APPLICATIONS

    公开(公告)号:US20220371445A1

    公开(公告)日:2022-11-24

    申请号:US17580441

    申请日:2022-01-20

    Abstract: A magnetic HVIL system for a drive in a transport application includes a Hall effect sensor within at least one housing of the drive that includes terminals and a removable cover. The removable cover includes a magnet having a magnetic field that is detectable by the Hall effect sensor when the removable cover is installed on the housing. The magnetic field of the magnet is not detectable by the Hall effect sensor when the removable cover is removed from the housing. The magnet HVIL system is configured to be operable to enable active operation of the drive when the Hall effect sensor detects the magnetic field of the magnet and is in a closed circuit condition and disable operation of the drive when the Hall effect sensor does not detect the magnetic field of the magnet and is in an open circuit condition.

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