Quote Originally Posted by phill05 View Post
Sorry to jump in on this thread Neale would the wires from the EM806's go to the E stop on the BOB?
May sound daft but actually, I don't know! I use a CSMIO-IP/M, partly because it includes BOB-style functionality (i.e. it provides plenty of input and output connections, and doesn't need a separate BOB). One of these inputs can be defined as something like "servo fault", and the hardware is set up to stop all motion immediately if this signal occurs. That means that Mach3 doesn't get involved directly, so I haven't had to define an input in Mach3 for it. I'm sure that someone out there knows the answer as this is a very common setup, it's just not the particular one I use. This is also why it was very easy for me to use the factory-default "NO" rather than "NC" on the drivers.

If you reconfigure the 882/806 using the software configuration tool so that the fault outputs are now "NC", then you should be able to wire them in series with the e-stop switches and take them to the e-stop input on your BOB. However, I haven't tried this myself, although it's what I would investigate doing if I were in your position.