I have a Moore Jig Bore #1 1/2 in my garage. The shop I use to work at closed their doors and gave me the machine with a Sony DRO. I would like to use the simplest form of conversion possible (digital phase converter)? Too much BS to deal with on a VFD. I just want to simply take single phase 220 and convert it to 3 phase.
... I ended up using a 7.5hp VFD (it was given to me without instructions).... 3 phase 220v came from the outlet to a power disconnect on the machine, from there it went to a 220-440 transformer... I hooked up the VFD ahead of the transformer, the transformer buzzed like one powering a large building.
A 7hp vfd running a say a 5hp lathe motor should be able to handle a 1/2 hp coolant pump switched manually in parallel, provided the lathe is not under heavy load when the 1/2 hp motor is switched on.a vfd isn’t that complicated there are plenty of videos for it, if I can set one up to run everything on my lathe including tail stock and except the 3 ph. coolant pump which I’m working on now by adding a capacitor because a vfd can only run one motor at a time unless there all the same anyone can do it.
Yes, it should. But the pump will have the same power frequency as the spindle motor. That might be an issue if the spindle is speeded up or slowed down significantly.A 7hp vfd running a say a 5hp lathe motor should be able to handle a 1/2 hp coolant pump switched manually in parallel, provided the lathe is not under heavy load when the 1/2 hp motor is switched on.
That being said a few weeks ago i bought a 1/2 hp fuji vfd for 50$ on ebay.
I agree. I don't find the need for such fine speed control, myself.Thats what the gears are for...