On 03/13/2015 11:01 AM, Jon Elson wrote: > On 03/13/2015 10:09 AM, craig wrote: >> On 3/13/2015 2:28 AM, andy pugh wrote: >>> On 13 March 2015 at 00:16, craig<[email protected]> wrote: >>>> 1. It has a Nakanishi nks-3000 spindle but no controller. >>>> Does anyone know what it takes to drive this spindle? >>> How many wires does it have? >> The connector has 10 pins. I haven't opened up things to find out how >> many are connected. > Well, the thing to determine is if it is an induction > motor or permanent magnet motor. > if induction, then you can probably run it on any VFD that > goes to a high enough > frequency. Well, that's assuming it is a 3-phase motor. > > If permanent magnet, it may get a bit more complicated. > One way to tell is > to short two of the motor pins and turn it by hand. if > there is no change in > resistance to spinning, then it is induction. if you feel > a "lumpy" drag on the > spindle with the short in place, it is permanent magnet. >> It also has an air hose going to the spindle. >> > That is probably for cooling, unless it is an air bearing, > which sounds odd for > the type of tooling suggested. > > Jon
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