> > Any guesses whether something was there? I had some trouble getting > stable velocity loops, and it makes me wonder. > > our Mitsubishi servo amps where the same, the tach went to a board which then passed it onto the AMPs, tracing it through on the boards it was just a pass through on the board connections, as same lead carried the tacho and resolver signals. (we fitted encoders on the screws)
so linking it straight into the drive on the tacho inputs worked perfect. with out it the AMPs never know if the motor is moving or not or running at the correct speed to the commanded velocity signal so they just stay in E-Stop state or alarm out. ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
