surprised me when I read the manual and it clearly says to NOT use a contactor or it could damage the VFD. I’d watched people on YouTube use contactors in their build and would have made a big mistake if I hadn’t looked at the manual.
What you basically must NOT do is put any form of switch between the VFD and the three motor cables going to the spindle or unplug the spindle with the VFD running.

If you do you might hear a big bang.