Greetings; When I put a halmeter on the motion_spindle_out_rps? line to see what the commanded spindle speed is, when stopped its properly zero. Click either direction button gets 1 or -1. Spindle doesn't move of course although all the relays clank in.
But, a click on the + or - buttons is in increments of 100, so the progress is 1, 101, 201, 301, 401 until it gets up to a limit after about 10 or 11 clicks. Today I am going to install an si diode in the analog voltage line from the C41 to the controller so that the minimum output voltage from the C-41, about 120 millivolts, is essentially blocked by the barrier voltage of the Si diode. But, I would like to have the first click on the direction button output a value that would bring the spindle up to a visible speed, say about .5 rps, or 30 rpm. That would imply a starter value of around 150 or more to overcome that diodes drop, the drop being required in order to trigger the drivers zero speed lockout reset which does not reliably occur at a 120 mv minimum when stopped. How can I accomplish this good sized starter step just from clicking on the direction button? Thanks. Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
