Thread: VFD Setup - XIN YE ELECTRIC - YP-C1D5-2G

Hi Rod

Sounds like the cable your using is the correct cable that we normally use for vfd,s and its standard practice to ground the shield at both ends....(as you have done)...
DKHS ?? (use to be Edward Kellar) sell vfd cable but i think you may need an account to buy...If you guys can work out how much you need i get a price per metre and can probably order from L+H....But i would want to supply the cable to one person and let them distribute it to other members....
Frank

Hi Frank,
I don't need any for a while but if anybody takes up the offer I am happy to contribute to make up the numbers.

Hi Frank,

I'm assuming the same cable would be suitable to wire up my steppers as well? I'll try and work out how much I need this arvo, but i quick guesstimate is around 20 meters total.

Originally Posted by John H

IIt looks like P0055 is the setting I need to set the minumum frequency

I think P0008 is where you set the min Freq. The P0050's look like settings that can be read by other applications. Change P0008 to 100 - 120 and see if P0055 changes to the same amount.For screened cable, try the electrical wholesalers. Explain that you want to connect a 1.5kW motor to a VSD and they should have something on the shelf.

I had a look at the P0008 setting and it seems like it may be linked to another setting. It won't allow setting to whole numbers, as setting one of the figures changes others. When I tried to set it to 120.00, I set the 0.00 but when I did the 2, it changed 0.00 to something else.

John,
As you know I was having the same problem as you in trying to source suitable shielded cable. After trying my only 2 local suppliers, a electrical friend suggested "Cables Plus" in Melbourne ... http://www.cablesplus.com.au/ ...

I ordered my 10m of 4 x 1.00mm2 shielded at $4.20/m +gst. It arrived today and it is just what I was looking for ... already installed in the cable chain and will connect it all after lunch!! John, you also mentioned that you might use the same shielded cable for the steppers, but Cables Plus have the same wire 4 x 1.00mm2 UNshielded for $2.50 + gst.

Only problem with Cables Plus for us north of the border people is that freight is abt $27.00.

Anyway, I am happy ... my search complete and now there is nothing stopping me from finishing!!

Cheers,

Alan

Good article on EMI

http://www.powerqualityanddrives.com/emi_rfi/

If read correctly and after talking with a friend last night who works in certifying power equipment for wholesale electrical distributors (SP Ausnet, City Power, etc), the suggestion is that high frequencies which have a ground via shielded cables use this to effect, which implies that the EMI travels down (around the shield) and would then be allowed into the VFD (as we have attached the shield to the earth).

He suggested to me that I should only connect the 3 motor wires. Choke the wire and use an EMi filer on the AC input. Finished.

**Note: this also means that the spindle is not grounded, so if one of the 3 wires contects the case it will give you a really good hello!!

Alan,

was this the product you bought from them;
Protoflex - EMV

Variable Speed Drive Cable

Originally Posted by Zoot

I ordered my 10m of 4 x 1.00mm2 shielded at $4.20/m +gst. It arrived today and it is just what I was looking for ...

Good find Alan. I will be calling in on them next time I'm in Melbourne.

What is the OD of that 1mm cable you got?

Greg

Thanks Alan,

That will do the trick for cable.

Originally Posted by seafurymike

Good article on EMI

http://www.powerqualityanddrives.com/emi_rfi/

If read correctly and after talking with a friend last night who works in certifying power equipment for wholesale electrical distributors (SP Ausnet, City Power, etc), the suggestion is that high frequencies which have a ground via shielded cables use this to effect, which implies that the EMI travels down (around the shield) and would then be allowed into the VFD (as we have attached the shield to the earth).

He suggested to me that I should only connect the 3 motor wires. Choke the wire and use an EMi filer on the AC input. Finished.

**Note: this also means that the spindle is not grounded, so if one of the 3 wires contects the case it will give you a really good hello!!

Alan,

was this the product you bought from them;
Protoflex - EMV

Variable Speed Drive Cable

Hi Mike

I have installed quite a few VFD,S and its common practice to connect both ends of the outer shield to earth...We also use a choke on the input side to the vfds....I believe some suppliers actually state to earth both ends of the shield....Will be interesting to see what effects if any your friends method has...keep us posted on it...
Frank

I am attaching a photo of the cable I bought from Cables Plus in Melbourne.

It has an outside diameter of 9.3mm, a clear outer sheath, braided sheath, grey PVC flex with 4 x 1.00mm2 coloured insulated wires.

Hope this helps others. I had the spindle running last night ... 24,000rpm is fast!

I initially asked for Protoflex, but the cable has this written on the side ... CONFLEX 4G1.00MM2 V90 VSD/EMC TC 0.6/1KV 2009 9400.

Cheers,

Alan

Go the Cats!!

Hey guys,

I went to Cablesplus yesterday during lunch and bought the 4 core 1mm shielded that John bought. I wired it up last night and I have a few pictures for you of the install. I ran this for a while under the setup I want, which is the unit plugged into the common power rail on the CNC machine and I found I got no drop outs from the smooth stepper. So the combination of what Frank said and John's cable seems to have done the trick for me.

I went to Jaycar and bought a HF suppressor for the 240VAC. I had some chokes from a pair of motors off of my kids old electric car. Added it all to an enclosure with cable pull reliefs.

I am a lot happier with this setup than the previous version. I hope this helps others.

Photo 1: Power in at bottom, to RF suppressor (10 amp unit) output via power cable to Photo 2 left cable strain.
Photo 2: Left lug is power input to unit. Right lug is VFD output choked to the spindle.

/M

Good stuff Mike.

Maybe I should fit one of those filters.

I have read that they should be installed as close as possible to the VFD.

Greg

Greg,

I assume you mean the toroidal filter. This would make sense given the motor back EMF is the cause of our issues.

Interestingly the other night Nigel was machining some stuff on the lathe and Paul and i were playing with my CNC machine. Without the spindle running, the smooth stepper kept dropping out. We finally deduced the lathe was killing the SS with EMF too. You just can't win.

/M