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    How do the ATV31/ATV312 logic inputs work when the VFD is in SINK mode?

    How do the ATV31/ATV312 logic inputs work when the VFD is in SINK mode?

    Product Line:
    ATV31 and ATV312

    All model

    Developing control scheme

    The VFD is in sink mode when the control board DIP switch is in the SINK position.

    Internally, the sinking mode connects the logic inputs to the +24V as the common.  A logic input is turned on by connecting it to the COM by means of a dry contact.

    Note: When the logic inputs are configured for sink logic, grounding an input signal can result in unintended activation of drive controller functions.

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