Last edited by EddyCurrent; 10-01-2014 at 07:34 PM. Reason: I meant 'to' not 'too'
10-01-2014 #32The supply cable could be 4 core armoured.
This is going to sound rich coming from ME but come on Lads don't turn it into an argument and pyshics lesson so to confuse the Man.
Bush Flyer 1.0mm/2 is fine for these Spindles and what I've fitted many times without any issues even on heavy use machines but if you want to cross I's & Dot the T's then use 1.5mm/2.
2.5mm/2 for the VFD Input. If near heavy traffic or chance of damage etc then armoured if not then just use 2.5 Flex not ridged mains cable.
Right 1.5mm/2 cable for the spindle and normal 3 core for the mains but the size I was going to buy 1.5mm/2 cable as that can handle 15amps, and a wall plug is only 13amps.
2.5mm/2 would be able to handle 20amps but still the wall plug is only rated at 13 amps.
Or have I got to take the main feed straight from the fuse box to get 45amp supply in the house ( I hope not.)
Last edited by Bush Flyer; 10-01-2014 at 05:13 PM.
2.5mm^2 for the VFD input is excessive. 1mm^2 is adequate...so if you want peace of mind go for 1.5mm^2!
It's a 1.5kW spindle, so anything above that and the VFD will cut out within a few seconds - i.e. too fast for the cable to heat up, so you only need to rate the cable for 1.5kW. 1500/230=6.5 amps, hence 1mm^2 (rated for 10 amps) is plenty for a 1.5kW spindle and just enough for 2.2kW as 2200/230=9.6A.
Last edited by Jonathan; 10-01-2014 at 05:20 PM.
Last edited by EddyCurrent; 10-01-2014 at 06:41 PM.
Right that's it sorted, I have ordered 4 core 1.5mm/2 screened and 1.5mm/2 normal 3 core mains.
Thanks for all your help, once I have it set up and I run into problems I will probably need your help again.
From your post #25
The VFD is 1.5kw HUANYANG VARIABLE FREQUENCY DRIVE.
The motor is a, Germany Imported Bearing, water cooled spindle 0.8Kw
Last edited by Clive S; 10-01-2014 at 07:27 PM.
Last edited by Jonathan; 10-01-2014 at 07:29 PM.
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