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« on: August 20, 2013, 04:09:24 PM »
The problem is not Mach, if the spindle is starting when you close Mach then it is a problem with either your VFD or your spindle control board.
You used a physical switch, as a test, if I recall and that cured your issue which more or less says the issue is with the spindle control board.
The documentation on the spindle control board seems to suggest that it should not act in that manner and thus it was suggested by myself that it was either a faulty board or that the board itself does not work in the manner the documentation says it does.
A Brain can not do anything for you, a Brain can only work when Mach is active and your problem happens when Mach is shut down.
Hood