thought I would chime in on the VFD subject since I have a step pulley head mill with a 3hp TECO L510 VFD. The info from the site i bought it froml was somewhat misleading, I thought you could connect an external braking resistor to it. Found out it had an internal one when it arrived and was in business... but spinning down from anything over 1800 with it set very aggressively will cause it to fault out. I guess it makes sense considering the size of the drive and typical braking resistors.
Attachment 362926
I will start a new thread for some questions about my setup instead of hijacking yours