On 7 November 2014 21:35, Joe Hildreth <j...@threerivershospital.com> wrote:

> One more question.  If I wired it like my last email, then LinuxCNC would not 
> have any clue that I hit the external E-Stop.

My scheme is similar to those described, the motion.machine-is-on
signal is amplified to have enough current to  operate the main
contactor, then the contactor coil circuit runs through all the
e-stops.
On the mill the e-stops all have a second switch module that tells the
system that the e-stop has been pressed. I don't think that the lathe
knows.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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