Thread: Quick cable question
I recently posted a VFD noise interference problem question. after looking at the answers I have decided that I shall renew the connection cable between the VFD and the spindle..its a 1.5kw water cooled as a belt and brace operation. Just asking I have managed to source the correct connection plug from the US but have two questions to ask further about the actual cable.
1/ Is this cable in the link below suitable as shielded cable..I worked out the cable dia is 1.6mm so capable of approx 10 amps and 2000 watts.
2. the cable shown has a ground wire as well as an earth ...Am I right that this ground wire is connected to earth at the VFD end only and not at the spindle end ?
BELDEN 19364 SHIELDED MAINS POWER CABLE PER METRE | eBay
Many many Thanks
Try CSE cables and at £0.66 Pence meter for 1.5mm/sq or £1.03 for 2.5mm/sq much easier on the wallet.!! CY Cable 3 Core
You'll get away with 1.5mm/sq on the 1.5kw spindle or belt and brace it and use 2.5mm but warn you it gets tight fitting in the connector.!!
Correct take the Shield to VFD ground or Star ground in control box only.
The Following User Says Thank You to JAZZCNC For This Useful Post:
Thank you Jazz....Christ that is a lot cheaper...about 80% saving. have ordered 25 meters of 1.5 for the spindle and 3 meters of 2.5 for the mains hook up (min order was £25) so all up with postage at £10 came to £36 ish...still half the ebay price and ended up with twice as much cable. Going to try and mount the VFD close than they guy had it...but if it still gives interference got plenty of cable to stick it the other side of the workshop. Thanks again
Last edited by PWD; 10-12-2012 at 12:29 PM.
The Following User Says Thank You to PWD For This Useful Post:
If you have interference then look else where.! Check you have Good Star grounding and ALL Signal cables are shielded and grounded with decent separation from any mains power or high frequency cables like VFD cable to spindle. Also Use an input filter on the mains into VFD.
Hi PWD, Thank's for posting this, I'm in a similar boat, just about to build my Electronics box, and I'm looking at a 2.2kw spindle to a hitachi omrom x200.
@Jazz, Hope you don't mind, I've PM'd you rather than hi jack PWD's Thread.
Just wish I could contribute more.
Cheers again then Jazz...as you can see its all new to me. Will it be OK to use the shielded cable to supply the VFD with power from the mains . Have got some emi filters already, they are the type that has the cable pass through twice..is this OK.
Again indebted to you ... ever you have a problem with a dog re training I can pay you back :-)
Rick everything I have begun to learn about this CNC malarkey I have got from reading others posts...seems some problems just exists for everyone of sorts..good luck
Labs ...don't know why folk say they are calm ...great fun though mate, and make great gundogs if you get fed up of CNC,ing...she can retrieve already by the looks
Jazz your sidekick looks like she's already raring to go with the Gun dog bit, I've seen some really cool things on you tube that them thar CNC machines can make go Bang! "Cwazy Americans!"
She's going to be a great GD and didn't even flinch on bonfire night with what felt like 10,000lb bombs going off around the house. She was sat outside with me watching the pretty patterns in sky and the only one jumping was me. . Lol
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