OK so I misunderstood what you meant when you said "If you are using a Cabinet of some kind, you would first have a disconnect (Safety Switch) at the Power entrance to the Cabinet, the Power supply from the Switch would go to a Breaker, then from the Breaker to say a DC Power supply". I have seen some cabinets with the E-stop buttons on the door so I assumed that would suffice.
Is this more what you were talking about? If not, can you show me an example?
https://static.grainger.com/rp/s/is/...ger/4B996_AS01
I read these comments on the LinuxCNC forums about setting up an E-stop with the Mesa 7i76e board.
"most estop buttons (well the ones I bought anyway) have two contacts. One is normally closed and the other is normally open.
Wire the mains power to your motors through the NC side and wire field power through the NO side. So when you push the button it cuts the mains power and lights up a Mesa input to tell Linuxcnc estop has been pressed."
"emergency stop cuts motor input power and activates the disable inputs on the stepper drivers. (Note the DC power for activating those inputs must not have its power cut though - the way those disable inputs work on stepper drivers are a bit weird, they should require activation to enable the driver instead!). You probably want to cut the AC side of the motor power supply; DC will require a much beefier relay/contactor not to arc. If you do cut the DC side, pay close attention to the DC ratings of the relay/contactor."
Here is the diagram one person posted. They admittedly messed up the NC circuit but did not fix the diagram. I made the changes to the diagram as I think it should work. Please correct me if I am wrong.
https://drive.google.com/file/d/1liu...ew?usp=sharing
Do the comments make sense and does the diagram reflect those comments correctly?
Thanks