As the title suggests, Iím thinking of going down that VFD road. Iíve searched for and read all the posts on the forum about it, and Iím excited to have fine control over my lathe again.
I have a General 260 with a reeves drive that works not bad actually, but after using electronic variable speed, a reeves just isnít the same! Like I say, it isnít bad at all, just two complaints: 1. at some speeds there is harmonic belt vibration/wobble (I think due to the long travel), and 2. itís kinda noisy. Thereís so much going on with multiple belts and pulleys that slide around and, well, it sounds like it.
Thinking this would be a common conversion to wood lathes, I thought I could find simple guidelines online, i.e. what type/size/brand of VFD and motor to use, but to no avail. There seems to be a variety of opinions out there of what ďqualityĒ of VFD is required, i.e. the sensorless vector, or vector, vs other ďinferiorĒ (and also cheaper) models such as the V/Hz drives.
Iím in the early stages of the process. I feel not too daunted about the project but for getting off on the proper foot, namely, what products to use.
The VFD Iím eying, per a recommendation on another forum is this one, for a 2hp motor: http://www.factorymation.com/s.nl/it.A/id.196/.f Iím quite sure this one is a V/Hz model, i.e. not sensorless vector or vector, but it was recommended. And it is relatively cheaper when comparing with the ďbetterĒ VFDs. When I think of the CT128 I canít help believe that it would have a ďcheapĒ VFD and it works just fine (in fact it works very well after reading that the Grizzly counterpart has issues with pulsing at low speeds).
The motor has yet to be obtained (anyone want to trade a 2hp single phase Leeson for similar 2hp 3phase? I have learned that the motor I should have should be an inverter duty 3 phase.
So if any of you can chime in with any experiences, models, recommendations in this process Iíd highly appreciate it.