All these limit switches are in a string, wired in series, so any one of these open will create a situation that tells the control that it is in a limit condition. Thus, do yo have 24 VDC at the last switch? You need a schematic. As I said before, I remember going along a terminal strip in the back of the machine, and being able to see at which switch the 24 VDC stops.
George
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(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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