I have a different opinion on RPC...sure a digital phase converter is better, but a RPC will work as long as you don't cut any corners on ANYTHING. The biggest problem I had with the RPC is that I needed a 100 amp slot on the panel to guarantee that the VMC had 30 amps of available triple phase power. With the Phase Perfect, you won't have that problem.
I suppose I got lucky with my experience with a RPC, but I have a bit of trouble believing that since I hear many stories about misapplications of RPCs. I used a 20hp RPC for my Fadal when I started our business in my house. I bought the RPC new, sized everything correctly, and hooked it up to a brand new machine. I put about 2000 hrs on the machine and nothing missed a beat. Since then, that machine resides in our shop and I left the RPC behind. The machine runs in the shop just like it did at my house.
Turul, there was something wrong with your RPC unit or connection to your machine...it sure as hell shouldn't be pulling that type of power when idle. Likewise, the RPC doesn't drive power through any source, in your case your machine control. The source pulls power from the RPC, which is really just a transformer. When you are not pulling any current throught the RPC, the only energy consumed is the power required to sustain the idler, which is under nearly zero load.  |