On Sun, 16 Oct 2011, Andy Ibbotson wrote: > Date: Sun, 16 Oct 2011 13:21:13 +0100 > From: Andy Ibbotson <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "Enhanced Machine Controller (EMC)" <[email protected]> > Subject: [Emc-users] OT EMC on control signal > > Hi I have my BF30 up and running EMC2 but I'm having problems with EMC > noise. When I switch on the shop fluorescent lights they cause the motors > to "jump" anyone got any advice re. shielding. All signal cable screens are > grounded to the 7i43 (PC) ground. Link to Control box from PC is by a 1m > bought 25Dsub cable. Motor power wires are 4core screened cables, screens > are at PSU ground (isolated from Geckos and PC). Any help or advice will be > appreciated. > > Machine is in the UK. > Regards > Andy
One possibility is marginal drive to the Geckos. Its usually best to drive Geckos with full 5V signals. This can be done on the 7I43 by setting the 7I43 outputs to open drain mode and driving the Gecko inputs in current sinking mode (OPTO common to +5V). You will hve to check if this is possible with your particular Gecko drives. drives > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure contains a > definitive record of customers, application performance, security > threats, fraudulent activity and more. Splunk takes this data and makes > sense of it. Business sense. IT sense. Common sense. > http://p.sf.net/sfu/splunk-d2d-oct > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
