Hello I have a Huanyung VFD with 2.2kw spindle and I just can't figure out how to wire my VFD to the MB3 directly. At the moment I have the following connection:
VFD --> MB3:
0V --> A0
10V --> AG
FOR --> NO1
REV --> NO2
And obviously it isn't working. Now I have tested the VFD with an RS485 to USB adapter and it worked perfectly. The issue is that after a while Mach3 will not recognize the adapter anymore and I have to replace it with a new one. They are cheap but I just don't want to keep doing that. I just want to hook it all up in one place at the MB3 and be done with it.
If you guys can walk me through this I would really appreciate it! Here is a picture from the manual but I cannot figure it out: