Frank Tkalcevic wrote: > I'm about to start converting my lathe to cnc and I am wondering how other > users of the 5i20 + 7i33 have wired it up. > > I have some +/-10v servo controllers that I am planning to drive with the > 5i20+7i33 combo. My computer is about 3 meters away. I was planning to > house the servos in an electrical enclosure next to the lathe, and > obviously, the 5i20 in the PC. I was planning on putting the 7i33 in the > electrical enclosure, and running the 5i20 signals from the PC to the 7i33 > in the enclosure. For cabling I was looking at SCSI 50 wire cables with > centronics connectors on each end. I'll make up sockets on each end. I'll > probably run 2 cables to get to another set of IO pins. > >
i would keep the 7i33 close to the PC, i have the same setup and made a coustom PC plate to house the Motherboard, and all the I/Os on, as i will be fixing it into a cabnet into the machine/on side of machine. i would not try and run them 50pin cables very far, and if any distance maybe look at shilded type depends how mcuh interfernace would be around the setup & legth etc (welders, compressors etc etc), if over any legnth u may want to feed the cards with exsternal power (see the cards manuals) best bet would be to carry the servo control wires over a distance using appropriate cables etc. > Any thoughts on my plan? > Should the 7i33 be close to the PC, or is it OK being far way? Should I run > the analog/encoder signals through the long wire? > Is a SCSI cable OK for this? I can't find any information about whether all > wires are straight through. I vaguely remember seeing the words "twisted > pair" in one of the description. Will 50 conductor ribbon cable be too > susceptible to noise? > for board to board (eg 5i20 to 7i33) its pin to pin, eg 1 - 1 (so make sure u get connectors rigth way around etc if u make cables ;) ) i made my own cables, got some round to flat 50pin ribbon cable that was shilded (from good old ebay) and made my own cables up, much neater than trying to fight them flat ribbon cables. any 50pin ribbon should do the job, with standard spacing (cant rember pitch of top head) hope helps rob > Any comments would be appreciated. > > Thanks, > Frank > > www.franksworkshop.com > > > ------------------------------------------------------------------------- > This SF.Net email is sponsored by the Moblin Your Move Developer's challenge > Build the coolest Linux based applications with Moblin SDK & win great prizes > Grand prize is a trip for two to an Open Source event anywhere in the world > http://moblin-contest.org/redirect.php?banner_id=100&url=/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.175 / Virus Database: 270.8.4/1753 - Release Date: 28/10/2008 > 21:20 > > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
