hi i have just bought a 5 axis hobbyist cnc and my VFD blew some sort of chip. My sister who is an apprentice electrition told me to get a VSD to replace it. it seems there are more VSD's than VFD's available in NZ. can anyone correct her if she is wrong for assuming a VSD would be a better option? (and also explain why?). this is also my first cnc and one that needs some major work to have it operational again.

Thanks