If you have a 3rd shaft for electrical forward and reverse switching, it's easy to add a no-volt release contactor in the line to the VFD, fit a "neutral switch" in series with the "on" button so that you can't power up the lathe with it in Fwd/Reverse and surprise yourself with a spinning chuck!
I'm running 240VAC into my VFD, and then into the motor which is a 3-phase. Where is the most logical place to create a reverse-direction option? Is that one of the options on my VFD, or do I need to install a switch between the 240VAC wall source and the VFD?