That is a bit of a difficult configuration. I rather like to us encoders with a RS485 balanced pair output i.e. A, notA, B, notB, etc. The receivers reject noise much better in htat configuration.
You might try to find a powder iron or ceramic ring-core and loop all encoder wires through a few times close to the computer. Or perhaps find some rf suppressor beads as used on VGA monitor signal cables. The idea being that what goes in must come out. and the influence of stray fields on the encoder cable is rejected by the core. Other than that: run the encoder cable seperate from the motor power cable. Earth all screening on one side only. Normally the computerside, at the enterance into the steel computer cabinet. And yes take the 2 motor power wires, clamp them into the drilling machine chuck and twist them. It is very important. In desperation over and above all this you might try to implement small LC filters on each signal wire. I dont have any values off my head. If needed I can look them up. Cheers, j. On 5/26/12, Jeshua Lacock <[email protected]> wrote: > > On May 26, 2012, at 4:48 AM, Jan de Kruyf wrote: > >> how many wires is your encoder Jeshua? > > Hi Jan, > > Just an A and B (separately shielded) and the encoder +5v and ground > (separately shielded). > > > Best, > > Jeshua Lacock > Founder/Engineer > 3DTOPO Incorporated > <http://3DTOPO.com> > Phone: 208.462.4171 > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
