Cliff, I have done a couple of VFD installs and motor conversions for my self and friends. The first one was on my heavilly optioned 13X40 Enco that I aquired and was only about a few months old with a missing motor.
After much thinking and weighing options I decided to go with a TECO FM50 3hp. vfd., 220V 1PH input and 220 3PH output. For the motor I went with a BALDOR TEFC 2HP 220/440V 1150 RPM 6 pole motor instead of the original 1800 RPM 4 pole motor. The reason for the 6 pole motor was based on the fact that at very slow speeds the motor is smoother running. At a setting of 3 HZ you cannot stop the chuck. At the high end I run a max of 99HZ. this have given me a broad speed range and considerable torque to match when facing in any given gear speed range.
The drive cost about $150 from Automation and the motor was $50 with shipping from ebay. I bought a nice roomy wet location enclosure from my local electric supply store. I will try to post some pics this evening if I can find time to get to the shop. Otherwise it will be sometime in January before I get back there as I am leaving Saturday for a 4 month working asignment that will have me traveling around the U.S.
Darren M.
http://groups.yahoo.com/group/gingery_machines/app/peoplemap/view/map
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