Thread: Spindle motor

That sort of puts it out of range eh.

Have a look at this post. It might be worth looking into.

Hello CNCZone from Melbourne - CNCzone.com-The Largest Machinist Community on the net!

I know there are a number of people who use his service.

Greg

Originally Posted by Greolt

One thing I will add Chris and this is only my opinion.

I would forgo the Chinese VFD and get a Hitachi from the US. Lots of reports I am reading of difficulties and poor quality with the Chinese ones.

That may not be an opinion that is widely held but it is mine.

Greg

EDIT: If buying a VFD alone from that Chinese seller then the price is much the same as a Hitachi from the US. But if buying combined deal it is cheaper from China.

Hi Greg,

Which buyer did you get your Hitachi VFD from?

Cheers,

Peter.

Peter here is a link

http://www.driveswarehouse.com/

Same seller as the ebay one linked above.

There could easily be an Australian supplier. I did not look. They would most likely want triple the price.

Greg

Originally Posted by Greolt

That sort of puts it out of range eh.

Have a look at this post. It might be worth looking into.

Hello CNCZone from Melbourne - CNCzone.com-The Largest Machinist Community on the net!

I know there are a number of people who use his service.

Greg

Thanks Greg, I sent him a message.

I would second Greg's opinion of getting a brand name VFD, while I haven't used the Hitachi drives personally it would have to be a major improvement over the cheap chinese ones, at my last workplace we used WEG drives and they worked very well, I installed about a dozen of them from 3KWatt to 90KWatt and was very impressed with everything I saw.

From memory the single phase to three phase ones came in at about $250.00 bucks from a local motor rewinder, brand new and about 1.5 KW...it was a couple of years ago now though, not sure how they fare price wise at the moment.

Cheers.

Russell.

Chai posted my spindle from Jinan last Thursday, and it was released from Aussie customs yesterday. Expecting the doorbell to ring any time now. Whooohooo.

5 minutes after my last post, the doorbell rang with the delivery from Chai. Once I had cut my way through about 2 rolls of packaging tape, I found everything to be in good shape.

The vfd is the YP-CID5-2G, which others have got. The Manual is pure Chinese, but there seems to be enough information on here, and cnczone, to be able to get it going. My problem seems to be the pinout of the spindle, as there are no docs with it. Can anyone help with the pinout please.

I emailed Chai at [email protected], only to have it bounce back, as being a cancelled address. So I then emailed him at his Ebay address. Got a email back from ebay, saying (approximately), 'you have sinned my son'. So has anyone got an alternate email for Chai?

Currently am drawing up the mounting for the spindle, and will make this in the next few days. Then, hopefully, wire it up without letting the magic smoke loose. I'm not interfacing with mach3 at this stage, but will do that eventually.

I have PM'd the email address to you.

Thanks Rod.

Hi Chris,
Three of those pins will have continuity between them - all three pins should have continuity with each other. These are your three phases. The fourth pin should be the earth but if it is like mine it will not be connected to anything. While you have your multimeter out check each pin to the case of the spindle to make sure you don't have a short in the spindle - one of mine did and the spindle was replaced. You might get lucky and the fourth pin may have an earth to the spindle body.

The three phase wires go to the VFD in any order and if it rotates in the wrong direction you just change one pair around at the VFD.

I ran an earth to the spindle mounts and also the shielded part of the cable to the same point. The other end was connected to the power supply earth. I figured there was too much voltage not to have some protection with a metal case spindle.

This worked for me but as you know electrics is mumbo jumbo to me so do your own research and anybody chime in and correct me if I am wrong.

Many thanks Rod. All metered, and none going to earth. I have the 3 phases okay. I now kinda feel, that I sorta know what I'm doing now

Chris

My present spindle came with the same microphone connector. (I doubt they would pass in this country)

I kept getting the VFD faulting out at odd times. Spent ages chasing VFD settings to no avail.

Then I replaced the connector with a better quality one the problems magically disappeared.

I am not suggesting you must do the same but just watch out for it if you get unexplained VFD faults.

Greg

Hi Chris,

Only three of the four terminals are required as one goes to air. All I did was take the black cover off to see which pin it was.

Hook up the wires from the U V W terminals on the VFD - It doesn't mater which ones. The the spindle turns the wrong way, swap any two of the wires over.

EDIT: I didn't read the second page to see that Rod had already answered.

Thanks Greg & John.

In view of you comments Greg, I'll buy a better plug from the get go.

Went to Jaycar to get some cable glands, as there is no other way to trap the cables in the vfd. However, the design of the vfd casing is such, that the circuit board gets in the way of the gland nuts going down properly. This stops the case top going back on. I must say that this seems to me to be badly designed in this respect. Well to be honest, I would say it's a pretty poxy arrangement.

I ended up turning down the inner gland nuts, so that they would clear the circuit board. Left a bit at larger diameter to act as a washer, and this sneaks between the case and the board. Final tightening happens after the lid is put back on, and everything seems to fit okay. Anyone else done this differently?