Limit Switch wiring question

[Robin Hewitt]

that will reduce electrical HF interference from plasma cutter for example.

If you want to reduce electrical interference put in a fast diode to VCC to dump any big spikes and look for current rather than voltage. (To look for current stick in an opto isolator)

[Boyan Silyavski]

If you want to reduce electrical interference put in a fast diode to VCC to dump any big spikes and look for current rather than voltage. (To look for current stick in an opto isolator)

OK. But i will need separate power supply for that optocouplers, yes? Now what comes to my mind is that my Galil DMC-2183 & 2 ICM-20105 Opto I/Oboard maybe has that already . later will read again the 300 pages manual

[Lee Roberts]

I have rolls of cable cheap Sily, dont know what the shipping cost would be to you but i could just send you what you need...

6 and 4 core + shield is what i have, they are 100m rolls.

http://postimg.cc/image/sd9hc4fiz/

.Me

[Robin Hewitt]

If you want to avoid interference I would suggest twisted pair. I have a notion that there is a lot more to getting a signal in to and out from a Faraday cage than I know about

[Boyan Silyavski]

Thanks guys!

Lee, will PM you now about the cable.