Thread: Help Please: Huanyang VFD + 1.5Kw Water cooled spindle

From what your saying it sounds like an issue with the connection from the spindle to the VFD.

So, just to clarify, the VFD RPM is increasing on the display as you adjust the pot? If it is doing this correctly, then all i can suggest is check PD001 and PD002 to ensure they are correctly set for external control

/M

Hi seafurymike,

Appreciate the response.

I'm using Mach3 to control the spindle with M3 Sxxxxx commands (so not using a POT)
I can start and stop with M3 and M5. I can set S to change the freq on the VFD.
(I haven't checked the ROTT display on the VFD to see what RPM it is reporting).

Once I send a M3 S8000 command the spindle starts to make the noises and the pitch increases as the freq goes up on the VFD....but the actual spindle does not spin. It just makes the noises. It's like the internal parts of the spindle are spinning, but not the external parts.

I checked the wiring from the VFD to the spindle tonight, and all appears correct. Got good continuity and no shorts that I can tell. But, I will replace the cabling later tonight and test again, just to be sure.

My VFD settings are:
PD013 = 1 Reset to factory
PD005 = 400
PD004 = 400
PD003 = 400
PD001 = 1
PD002 = 1
PD006 = 2.5
PD008 = 220
PD009 = 15
PD010 = 8
PD011 = 120
PD014 = 5
PD015 = 0.8
PD025 = 1
PD142 = 7
PD143 = 2
PD144 = 3000
PD070 = 0
PD072 = 400

I also tried manually controlling the freq from the VFD, after changing PD001 & 2 back to 0. Had the same result.
Freq would change, spindle would make the noises, but not actually spin...

Cheers,
Mike.

Mike

Your spindle is buggered, sorry to say.
You can pull the spindles apart and if i recall there was a thread on here where a guy replaced the bearings in his unit which shows the procedure.

Can you talk with the seller to get a replacement?
If you were in melbourne you could have tried it on my unit.

Hi seafurymike,

OK, I thought as much myself.

Just good to get a second opinion, and from a member such as yourself is just a bonus.

Thanks for running your eye over everything and helping out.

I've ordered a new spindle, and we will chase for a warranty replacement on this one too.
Don't mind having a spare anyways at the price...

Cheers,
Mike.

Hi seafurymike,

Just to provide closure on this, you were on the money mate!

The problem WAS between the spindle and VFD. The cable was the problem.
Replaced it tonight, as I said I would following your post, did another factory reset and reprogrammed the VFD to be safe.

Then tested it, and off it went.

Also, what I found was that if I was setting a freq (speed) below 120 (PD011) then it would exhibit the same symptoms. The spindle would make all the sounds like it was going, but just not spin. So the cable must have had some cross pollination which contaminated the signals to the spindle...

And we did have some contact with the vendor and he advised to set PD041 = 8.

I reviewed the manual and found this:
Model: HY01D523B
PD009 = 14
PD010 = 7
PD014 = 10
PD015 = 10
PD041 = 8

I set 9,10,41 as above. Left 14,15 as previously (spin up/down seconds)

This sorted out the "dl" error and I can max out the freq at 400 (24000rpm).

So, I've got some nice shielded cable designed for VFD's on it's way as well.

Thanks again for your help.

Cheers,
Mike.