Greetings.

I am trying to figure out how to get a zero speed signal from the VFD so that I don't destroy my tool change system.

It appears that parameter 50 when set to 3 provides this signal,
I have checked for voltage differences between DRV and DCM and I have check for continuity changes between the same terminals, neither of which changed with the spindle running or stopped.

Most probably I am doing something wrong or I don't know how to use that "output".

Any help would be greatly appreciated!

Chris D