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  1. #22
    ~It looks like that board has the facilities to control the spindle with Mach3, but they are not wired in. at the bottom right on pic 4, the board is marked C (Com) NO, which is a spindle relay connection and 0-10v GND, which is the analogue voltage to control speed. I would leave it alone until you have the box working with manual spindle control. Then we can look at the box wiring.

    I would not recommend a factory reset on the VFD as you would have a hell of a lot of parameters to sort out. You have probably just taken it off manual control.

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