Maybe good if you can post pic's of your control box layout...many things can cause issues relating to electrical "noise".
Chines Spindle and VFD setting of my Estops can any one help (EMI i think)
can any one give me some advice please as to what should be earthed and at what end
i am afraid i may have a earth loop but wiring is not my strong point.
are parallel ports susceptible to Emi or is it just usb arduino, just about to go mad ?
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Maybe good if you can post pic's of your control box layout...many things can cause issues relating to electrical "noise".
ok i will post some pics but most of the wiring is hidden
en
its shielded cable and earthed and the shiesd is earthed at the control box with all the other
Like Mac said an input power filter is very important
That is part of your problem, you can not add a wire to the shield the shield must be terminated close or near the termination point of the cable, the spindle Cable also needs to have the Shield Earth / Grounded at both ends, in your case you Earth / Ground the shield to the Plug Body using the cable clamp at the top of the plug this is not ideal but unless you change the plug to a EMI rated Plug you have not other choice
Mactec54
I will post some pics when i get back of my Holls but Cheers to all