andyholcomb wrote: > This is a new and updated (today) install. I am running steppers > motors. In manual mode it works great, MDI and Auto mode it will > randomly go nuts on on one or two varying axises. Nuts, sometimes > going back and forth about 10 or 20 degrees on a axis with no movement > on the digits on the screen. Or, moving slowly in one direction with no > movements on the location display of the screen. On the MDI it seams to > do it when I first start up and go into that mode, I can execute some > code and it stops all the time I think. On the auto it will do it > sometimes when I go into the mode and sometimes when I get done with a > program. It will stop if I go back to Manual mode all the time. > > Any thoughts? >
If the display isn't changing, EMC thinks it isn't moving. Time for some classic "divide and conquer" debugging. EMC sends position commands out the HAL pins axis.n.motor-pos-cmd. Open another shell while EMC is running, and invoke halmeter. Select the motor-pos-cmd pin, and you will get a "meter" displaying the current command from EMC. Then do whatever you do to make it misbehave. If the meter shows no change, then EMC proper isn't commanding that motion. You start multiple halmeters - put a couple on the step generator pins as well, both command and feedback. If the stepgen feedback isn't changing, then the step generator isn't commanding that motion either. If you find something changing when it shouldn't, report back what you found. If none of those pins are changing but your axis is still moving, you probably want to look at the step pins. It doesn't make sense to discuss next steps in much detail, since they depend on what you find in the first steps. Troubleshooting is _always_ an interactive process. Ask a question, conduct a test to find the answer, and then ask a new question based on what you just discovered. Regards, John Kasunich ------------------------------------------------------------------------- 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 [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
