Quote Originally Posted by charlieuk View Post
I took a look at all of the above and no luck so I have just taken a new switch and wired it straight in to the csmio and it would appear by just testing it by hand it cure the problem which would suggest that perhapsthe switch or the csmio doesn't like the long cables !
It won't be the Csmio Charlie it will be a dodgy switch for sure. The Csmio are by far the best controller I've ever seen at handling noise, even my high frequency Tig welder doesn't bother them, no other Card I've used could handle this amount of noise.!

To test I've just connected one of those cheap prox switches to a 100mtr drum of cable which I put next to my VFD running at full speed and worked fine so i'd be changing the switch.