Hello,

I really need some help, I'm in the process of building a new controller for my CNC Router. I bought the ESS and MB3 combination and after reading the manual many times, I still have a few questions. I was hoping to attach my wiring schematic(but I can't get it smaller than the 19K file size that this forum limits us to) so you'll see what I'm trying to do, but there doesn't seem to a way to do it (if you can help me I'll gladly email you the file). I hope someone that has more experience in the wiring of the MB3 can look at my schematic and let me know if I'm on the right path or possibly assist me in correcting any wiring issues they discover. I have also added the information for my power supplies, stepper drivers and motors.

Here are some of the many questions.
1. I'm using inputs X110, X111 and X112 for my X, Y, & Z axis Limit/Homing switches. If I wanted to incorporate them into the OSSD Safety Circuit do I just use inputs X203-X210 and solder their corresponding i2XX pad on the bottom of the MB3?
2. I have 2 E-Stops on X203, again how does the OSSD circuit function?
3. I also have a touch plate, I have it on X204 and will solder the pads on the bottom of the MB3 for a 5V limit, does this sound correct?
4. Eventually I will get a VFD and Spindle, so I have added it to the schematic as well.

Again, I hope someone will ask me to send my wiring schematic and let me know if I'm on the right path, and possibly explain how the OSSD circuit operates. Thank everyone in advance.

Arron