Hi Kevin,
I have never done a rewind application using a VFD. I have either used servos or a DC motor with a high quality controller. You should have a dancer that controlls the tension on the rewinder otherwise you get sections of the roll that is wound tighter and others sections that are...
The only other consideration is what type if billing does your poco use with your facility. In mine we have an industrial rate with means that we have three different charges. There is the acutal usage in kwhr both in on peak and off peak. We have an actual demand charge that is the maximum...
