VS For My Nova3K *LINK*

Re: VS For My Nova3K

John Lucas

>Stuart

I would go with the 220 ideally. 1 hp is enough for small things but if you ever want to turn the head on the lathe and turn something 16 to 20 inches you'll miss the extra horsepower. Been there, done that.

You have to jury rig a mount if you don't by the 56c motor. I did that. It's a pain in the but and hard to get the motor shaft aligned properly unless your a good welder and can build motor mounts.

DC variable speed loses power on the low end. You want more power on the low end. AC variable frequency drives maintian there torque at low speeds.

I have purchased 2 drives from dealers electric and the only confusing thing was hooking up the motor. They don't really come with instructions, only a schematic so you need to be comfortable with that. You will also probably need to figure out how to mount the VFD and run wires to the motor.

My friend simply took his down to the local motor repair shop and paid them to wire everything. I'm pretty comfortable with wiring so I did my onwn

Programming the VFD isn't very hard if you are comfortable with computer controlled devices. The factory defaults may be good enough. I think the only thing I had to change on my friends was telling the machine to let me change the speed. I don't remember exactly that was a few years ago. If you want a remote speed change you will have to wire that in and reprogram the computer for that. It's pretty straight forward and they show how in the schematic.

Re: VS For My Nova3K

Stuart Johnson

>Thanks John. I'm checking with them about the availability of a 2 hp with 56C frame. I don't have a problem with the programming if there are decent instruction. The wiring is another story. I havn't looked at a schematic in over 40 years.

Re: VS For My Nova3K

Joel Hunnicutt

>Stuart I put their 220v 1 hp om mine machine a few years ago. Still works like a charm. If you can swing it, the 2 hp is a good choice. I can stop the one, but with the 2 that is on my 3520, I have never bogged it down. I didn't think programming was too bad and I am not much into that sort of thing.

Re: VS For My Nova3K

John Lucas

>Stuart

Schematics have really changed in 40 years. I learned when tubes were still in everything.

wiring the motor is more wiring than electronics so if you wired a motor you shouldn't have a problem. This is a 3 phase motor however so it's a little different than standard 220.

Wiring a remote speed pot is pretty easy and just about foolproof. If you get the wires on the correct terminal of the VFD (it does show you on a pretty simple schematic) the wiring to the pot is pretty easy. just hook it up if it doesn't work right switch the wires and try again.

Need a motor?

Peter Teubel

>I have a Baldor TEFC 1 1/2hp 3-phase motor 56C frame that I bought originally for my Nova 3000 (which I never got because I got the DVR instead). If you're interested, let me know. $60 plus shipping. Located in Milford, MA.

Re: Need a motor?

Stuart Johnson

>Peter, Thanks. I'm just starting my research but just might get back to you. I'll need to see what drivers run and when all is said and done convince myself it is something I really need.

Re: VS For My Nova3K

Guy

>I bought a setup (2hp Teco VFD and a 1.5 motor) years ago from them and it was the best thing I did to that Nova (that and adding a DVR tailstock). When I sold the lathe I kept the motor/VFD and they are on my drill press now. The equipment has never failed me. The motor had a 56c face and also had "standard" frame mounts hence the attachment to my drill press. Go with the 2 horse if you can, you won't regret it. Dealers Electric was good to work with and I called them to help me wire my stuff up, very helpful. Take it easy, Guy