Need a motor controller

[Sam Salvati]

I would like some help finding a VFD or speed controller for this motor, would be great if it converted from 3phase to single phase but if not no big deal. Here is a picture of the motor plate.

 

[cerucker]

I think you will have to stick with three phase. Most old motors like that can be wired to only 220/440. I don't think that motor is variable speed. If so you will have to set speeds with belts and pulleys, like an old drill press.

 

[Big Chris]

From what I have read and experienced with the larger horsepower motors you need a stand alone phase converter to be able to run with single phase 220.

 

[12345678910]

In 3 HP, no problem going from singoe to three phase

ONce you get to 5 HP, it looks like they all need 3 phase input


http://dealerselectric.com/N3-203-CS.asp

http://dealerselectric.com/JNEV-203-H1.asp




http://www.pioneerbreaker.com/ProductDetails.asp?ProductCode=N3-205-C

 

[DougSeward]

Single Phase Input 230v is not a problem, but big VFDs usually have 3PH input and often 460V output. 5+ HP VFDs are not cheap. I sent you a couple links via email. -Doug

 

[Stacy E. Apelt - Bladesmith]

I agree, you will need a 3Ph converter ( static or rotary) and then a 3Ph-3Ph VFD. The good thing is that 10HP 7.5Kw 230VAC 3Ph to 3PH units are availably on EBay. I see some at $800. A rotary converter for 10HP will cost you another $800. Once you have both those, you can run all the 3Ph gear you want.

 

[timgunn1962]

Sam, is the motor for an Anyang?

It's 3-phase 220V and looks like it should run off a 4 Kw Huanyang VFD; one of the cheap Chinese ones available for a couple of hundred bucks off ebay.

They are available as single/3-phase input, 220V output.

There seem to be several posts on the machining forums saying the Huanyang drives are terrible and should be avoided, but I get the impression that there are a lot more drives out there than there are disgruntled customers.

As with most of the Far-Eastern stuff built and sold at ridiculously low prices, QC seems less than exemplary and support is likely to be non-existent if you get a bad one; it would be a poor choice if it's going to run the machine that puts food on the table.

If your application is non-critical, the Huanyang might be your best bet.

I bought a 2.2 kW (3 HP) Huanyang drive a few months ago, mainly to see if it's as bad as the guys on the machining forums say.

It actually works very well. It's on long-term loan at the moment to a guy who runs his shop off-grid and had been getting problems with his grinder bogging down when run from the generator. It seems to have sorted the bogging-down problem, which was the whole point of trying it. I'm still waiting to see if he can break it with normal use though; it's been about 2 months now and I'd like to see if it makes it to the new year at least.