What kind of machine is it? Is it just a simple single motor with no other control electronics? If so this should straightforward with a VFD.

?

Be careful that many VFDs do not like hot breaking the load – using the power switch on the machine sends the back EMF into the drive and can fry things. For my Bridgeport VFD project, I rewired the existing Bridgeport power/direction switch to feed control inputs on the VFD and then directly wired the motor into the VFD. That way the ergonomics of the Bridgeport are unchanged but the VFD is happy.

?

Hello,

I am no electrical engineer, so I am looking for advice regarding the best method to power a Japanese machine that requires 200 V, 3-phase, 50 Hz power with a 2.2 kW motor.

My Felder machines are powered by a Phase Perfect PT-330, drawing power off of a 90-amp sub panel in the shop.? From what I read, either a transformer for the PT-330 or a VFD drawing 2-phase power to convert to 3 phase.? Even though I am leaning toward a VFD as the ratio of voltage and frequency is the same at 0.83 (200/240 V = 0.83, 50/60 Hz = 0.83), I am not sure if it is acceptable/possible to use it to power the electrical components of the machine.??

What do you all think?

SW

?