12-16-2014, 11:05 PM
if I read you post right? you are asking if a 3hp VFD could run the 5hp motor with the 1hp load? if the starting load is low enough, the VFD only sees resistance / inductance , current draw, counter-EMF, so if it is in the parameters the VFD is designed for it should work. I have Lense, Toshiba, ???FM50 can't remember the name? on various machines, knock on wood they all work fine!
oldgoaly, proud to be a member of MetalworkingFun Forum since Jun 2013.