> > The false trips are nearly always due to NOT using screened cables > (including limits) and poor grounding and wiring techniques. >
And one MUST use a capacitor at the BOB to eliminate noise created by the steppers lines. a couple of yF and a fast cap like a ceramic one does the job to flatten those spikes out nicely. I actually changed my entire design and bolted the gecko's to the frame where the steppers are located and transport step/dir and power there rather than running the driving lines all over the place. I use differential encoders/decoders for the dir and step signals and feel that the steppers are more crisp compared to the ones driven through a few feet of cable. It also reduced the cost of cooling for the gecko's to -zero-. Rainer ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
