Spindle Cable Choice (Eliminate EMI Issues From The Beginning)

[@HylasFlooring]

I was looking at a picture of a cable for the whole 14 minutes, and I have to to say that it was worth my time.

[@corvetteguy50]

Thank you, Zhengwei for your support. There's not enough I can say about proper cable choices for your system to offer stability. Thank you, Vince

[@RobKernahan]

Hi Vince, following up with regard to the custom cable form. Cheers, Rob

[@pascalperrin-bonnet7119]

J'ai longtemps hésité sur se câble quoi acheter? Quelle brin? diamètre? Armé ou pas? Toutes ses question me trottais dans la tète. Votre tutos ma super éclairé. Maintenant je suis vraiment confiant dans mon choix de câble. Merci à vous.

[@corvetteguy50]

Thank you for your support. I really appreciate it. Glad to help. Vince

[@5thCOLLABSE]

man i could not be more grateful for all your videos Thank you =D

[@corvetteguy50]

5THCOLLAPSE, thank you for your support. I'm glad they have helped. Have a great weekend Vince

[@soorenaaslani7491]

Hello. Thank you for the information. I just want to make sure I'm doing this right. My 4th pin is connected to green and it is attached to spindle body, I've checked. At the VFD end I have it hooked to the earth or far right pin just before the outer screw. I also have the braided shield connected to the screw to the far right of the VFD after the green which is Earth as well I believe, only on that end, the spindle end is not connected to anything. Is this the correct way to wire this safely? I have this exact cable.

[@corvetteguy50]

The way describe is the correct way to wire the spindle. The ground drain only gets attached at the VFD end to prevent a ground loop. Thank you, and have a great weekend! Vince

[@pawelb2067]

I used one of these Double Shielded 16/4 wire for my VFD and spindle. I have my VFD connected to a Gecko G540 controller. I use UCCNC to control it and noticed that my VFD speed readout is less then what I set in UCCNC. This inaccuracy gets worse the higher the speed I set. For example S7200 (my minimum set speed), will give me exactly 7200RPMs, at S24000 its off by about 700 rpms. I understand that this might be due to the cheap Chinese VFD and spindle i purchased. The problem is I have this issue with the ground and shield in the wire not connected (grounded) anywhere. When I ground either one of these or both to the VFD ground, my inaccuracy gets much worse (almost triples). What could cause this or is it the cheap VFD that's the issue?

[@corvetteguy50]

Pawel, thank you for your support. The issue you're having isn't do to your cable. Its because you're using UCCNC motion control software to control the spindle's speed, and UCCNC, and Mach3 both aren't equipped with encoder to properly register the RPM of your spindle. This is a common problem, an the only way around it is to calibrate the spindle in UCCNC. I would contact CNCdrive on the procedure. Thank you, Vince

[@chricke90]

Hello, I'm dealing with EMI inside my PC. I have tried disembly everything a couple of times. I don't mix cables together from different PSUs. The ODD part is that usually during late hours towards the night the PC "just runs" faster for some reason. This is even with my ethernet cable unplugged. Mouse becomes ligther , likes its more accurate for "no" reason. Ferritebeads doesn't help the problem. Or like its working sometimes for like 1-2 minutes then it becomes slow again. Any suggestions? I've tried multiple Ferrites, toroids etc. / Grounding seems to be worse then ungrounded for some reason.

[@corvetteguy50]

RNG, thank you for your support. I suggest scheduling a remote consultation with me, so we can review your system. I have to see what I'm working on to provide the corrective actions required. Please contact me at [e-mail] to schedule one.Thank you, Vince

[@Renaldo015]

Hi I have bambach spindle cable with double shield layers but no ground deain cable. The insulation is quite thick as well. Does the sheats need to be grounded still and of so do you have any recommendations how to do it?

[@corvetteguy50]

Bender, thank you for your support. if your cable has no shield drain you will terminate its braided shield. I prefer to add a silicone wire to it for flexibility for tight spaces. Thank you, Vince

[@Renaldo015]

@@corvetteguy50 Thanks! I thought about when I was removing the insulation and the braided wire looks like it can be twisted and soldered. Awesome video btw! 👍

[@corvetteguy50]

Great, I'm glad to hear you got it sorted out. Thank you again for your support. Vince

[@zeal514]

Thanks for the video, it has been so hard finding a cable like this! I'll be ordering 1 for sure. Question though, Could I just solder the drain wire to the ground wire to the ground pin on the aviation connection for a spindle? Technically the pin is connected directly to the chasis of the spindle, so as long as the ground is properly connected inside of the spindle it should be the same no?

[@corvetteguy50]

Kyle, thank you for your support. Yes, you're correct. You can solder the ground drain, and ground to the CNC chassis itself. I personally prefer to ground to the VFD end with the shield drain, and ground lead as its easier to service which is best practice. The grounding on the spindles end will yield the same if the CNC chassis is grounded as it should be which it being metal as well as the Z axis yields a conductive whole entity which will ground the entire system including all metal components attached to it "killing multiple birds with one stone" Thank you, Vince

[@zeal514]

@@corvetteguy50 I see. I was actually going to attatch the drain to the ground on the spindle, then again on the VFD. But if I am reading correctly, grounding on both sides is pointless. Just grounding on the VFD side is enough, and the shield, if it catches any emi, will just drain into the ground, no need to attatch it to the spindle as it's already attached via pin 4.

[@corvetteguy50]

You only want to ground the unit on one side in best practice to avoid the possibility of a ground loop. Thank you, Vince

[@mciarlillo1309]

For this and your DS Flexion, does the drain lead get soldered to the braided shield or is there a dedicated lead that silicone wire gets soldered to? Thanks!

[@corvetteguy50]

Please review this video, kzbin.info/www/bejne/eYDHiqGwaJatoJo Thank you, Vince

[@tomtillman]

Are you saying you should ground the sheathing? if so, how do you do that? thanks.

[@corvetteguy50]

Hey Tom, Merry Christmas! My 16/4 double shielded cable includes a ground drain lead which is to be attached to your VFD's ground terminal. Thank you, Vince

[@francismarasigan108]

What is the right size for a 1.5kw 110v spindle? Is 18 enough or need thicker?

[@corvetteguy50]

Francis, Thank you for your support. You require my 16/4 double shielded cable. Here's the 10ft kit www.ebay.com/itm/142538105021 and here's the 20ft kit www.ebay.com/itm/131899174942 Thank you, Vince

[@francismarasigan108]

@@corvetteguy50 Thanks for the reply. Ordered the 16/4.

[@corvetteguy50]

Yes sir, I received your order, and it shipped today. Vince

[@thefoildesigner]

Hi! I am interested in getting your cable on ebay. As discussed in another post, I will be running a 2.2kW on a 110V 20A circuit, so the plan is to limit the VFD output current to 13A, maybe 16A max if my breaker allows it. Would your 16/4 work? Apparently the max OD for my 2.2kW is 9.11mm. Will I need to do some modification to get it to fit? Thanks!

[@corvetteguy50]

Nico, 16/4 is designed for your spindle, and the diameter of the cable is 10.5mm, so you'll have to open your connector up with a Dremel to have the cable fit properly. Thank you, Vince

[@andersmeiniche2746]

Mucle luck is it not the Hz And The AMPS that do that ?

[@VojislavDjuric79]

did you ever opened chinese spindle pin 4 (earth) is not connected at all

[@corvetteguy50]

Win, thank you for your support. I really appreciate it. I suggest you review my video here kzbin.info/www/bejne/rIWaZ6CmoMqIr6s discussing the solution to the issue you mentioned. Thank you, and have a great weekend! Vince

[@kennyhebert8731]

I have a cnc plasma table that has some of the issues you described. I wanted to ask you, my shop is 3 phase power and my table is 7 feet from the main panel. My question is could I use the earth ground used for that panel to ground my table and control box to?

[@corvetteguy50]

Hey Kenny, Thank you for your support.I recommend using a ground rod as illustrated in my EMI video series here kzbin.info/www/bejne/i6GtZaeujc1mja8. I suggest you review all four parts as I cover everything you need to know about properly grounding a plasma system. Thank you, and have a great weekend! Vince

[@Duraltia]

I'm considering the Upgrade from a DeWalt 611 to a 0.8KW Spindle / 1.5KW VFD Combo. The model I'll most likely be going for has a 4-Pin Connector ( U-V-W+GND ) but I'm uncertain about how the braided shielding would be connected. Should it make a connection on both ends - housing of the Connector and VFD - or should it only connect to the VFD?

[@corvetteguy50]

Durahl, Thank you for your support. You would only attach the shield drain on one end. I prefer the VFD end. Thank you, Vince

[@stevejones1635]

I recently built a diy cnc with a wood substrate, so the only ferrous parts are the motor casings and the linear rails. My question is, do I run the drain wires to the linear rails? Or the central ground?

[@corvetteguy50]

Steve, Thank you for your support. The drains must go to a star point ground. Please review this video on grounding. kzbin.info/www/bejne/mXfVg3iBd5Kfaq8 Thank you, Vince

[@PeteSchirmer]

do you have a guide on how to actually wire the ends to the VFD and Spindle? like how to ground, which end, how to wire the shielding to ground, etc.

[@corvetteguy50]

Pete thank you for your support. The question your asking would require me knowing the exact spindle, and VFD model your going to support with the cable to be accurate as each system is different. Thank you, Vince

[@maxsmith2320]

nice tutorial, but im still a little confused , you said ...connect Ground wire to the ground which as far as i know does connected to the spindle body, ... after that you said connect Shielded drain wire to the chassis of the machine. Is the chassis of the machine connected to the ground ? Is it more simple to say that the Ground wire and Shielded drain wire have to be connected to the Ground. Im wiring my cnc now and i'm looking for the right solution to EMI problem, please help me with that. Also i see you selling that spindle wire. well i have a 4 Kw 220v 3 Phase spindle and i need to find right wire, 16/4 wire you have wont work because my spindle over 18 amps. Thank you

[@corvetteguy50]

Max, Sorry for the confusion. The ground for your chassis should be attached to either an actual grounding rod run through your foundation of your shop providing a definitive "Earth ground", or attached to the ground pin on your A/C wall socket as long as you know your home, or shop is properly grounded. The shield drain should then be attached to the chassis properly grounding it as well to dissipate any EMI. The spindle's body, or anything metal can be used to attach to pending the chassis is properly grounded first. Keep in mind while wiring your unit that most spindles manufactured overseas don't utilize an actual grounding pin on their spindle's plug. What's the make of your spindle, and VFD? Once I know I can recommend the proper cabling. Thank you, Vince

[@maxsmith2320]

hi, here the link to spindle and vfd: www.ebay.com/itm/HOT-HIGH-QUALITY-4KW-VARIABLE-FREQUENCY-DRIVE-INVERTER-VFD-5HP-220V-DESERVED/271462843640?hash=item3f347244f8:g:5zkAAOSwLVZVvbwQ. www.ebay.com/itm/4KW-WATER-COOLED-MOTOR-SPINDLE-ENGRAVING-MILL-GRIND-ER20-4-BEARINGS-FOR-CNC/272998478202?epid=1641290128&hash=item3f8ffa317a:g:qf8AAOSwT6pVh~62 this way you get an idea in more details . thank you

[@maxsmith2320]

on spindle i can see 220V 4KW 13A??? strange china don't use calculators . it should be 18 Amps 4kw 220v . let me know

[@corvetteguy50]

Max, The spindle your using is fine to use my 16awg cable as you'll never be running at 18amps peak output on your spindle with that VFD. My new Rev2 cables insulation is rated to 600v, and 105 degrees celsius (221 degrees fahrenheit). Thank you, Vince

[@maxsmith2320]

hi Vince I would prefer to have a 12 awg cable for 1 reason i have a big cnc and i need to run 35 ft of wire, if you have Rev2 12 wga 35ft please give me a good price. Thank you

[@brandonhurst924]

What length do you recommend for a 5 x 10 table. Also can this be used from the main power input to the VFD, not just VFD to the spindle?

[@corvetteguy50]

Brandon, Thank you for your support. The length for any chassis is determined by the end users requirements. An easy way to determine the length is to use a piece of yarn, and run it through your cable chain to where the VFD is located. This will give you the exact length you require. I also offer 16/3 double shielded cable to be used from the wall outlet to your VFD as its power cable. www.ebay.com/itm/142837352755 Thank you, and have a great weekend! Vince

[@brandonhurst924]

corvetteguy50 I sent you a message on your eBay store.

[@Peeseebeeb]

My Chinese made, 1.5kW spindle has only 3 terminals on the 'aircraft' type connector. there is earth continuity between the spindle casing and the power connector and I have purchased the same type of cable as in your video but with only 3 conductors. Presumably, grounding of the spindle is via the clamp on the connector to the braiding on the cable. Do I connect a ground wire from the vfd panel to the body of the connector at the vfd end?

[@corvetteguy50]

Peter, The grounding on the spindle should be done via the casing by securing the shielded braid to it as you typed, and the VFD is grounded by attaching your ground wire to it on the VFD's end. The shielded cable should only have one end of its braided shielding attached which in your case will be the on the spindle's end. The VFD will not have a shielded braid attached at its end as its already attached to the spindle providing proper grounding for EMI cause its cable is run from the VFD. This elminates ground loops where you would have multiple ground points for the same cable run. Thank you, Vince

[@Peeseebeeb]

I think that we are talking at cross purposes. There are only the three 'phase' wires in the cable with no ground wire. The only possible grounding route for the spindle may be through the braiding.

[@corvetteguy50]

If your using shielded cable as your describing it has 3 internal conductors, and then the braiding which is to prevent EMI you would use the 3 leads to wire the spindle, and use the braiding for the grounding to the spindle. Thank you, Vince

[@Peeseebeeb]

Thank you for your patience. That is what I thought might be the case. I shall run a wire from the VFD end connector to the ground terminal of the VFD.

[@corvetteguy50]

You bet, thank you again for your support. Vince

[@matthewjohnson1388]

Finally! Wish I had Seen this video prior to getting shocked. This video should be in everyones build log! The Green ground goes from the spindle ground pin then attaches to frame of machine? Thanks

[@corvetteguy50]

Mathew, I appreciate your support, and hope this video makes it into everyone's hands before attempting to use inadequate cable. Your correct the green wire in the cable is for the ground, and can attach to pin 4 at the spindle's body, as long as its making contact with the case of the spindle, or the CNC chassis itself.Thank you,Vince

[@ronaldmr2]

Excellent video as Always Vince , thank you very much!!!

[@corvetteguy50]

Thank you sir. I really appreciate it Vince

[@sateeshum394]

Thank You

[@corvetteguy50]

Sateesh, thank you for your support. I really appreciate it. Thank you Vince