Rainer Schmidt wrote: >> it powers on in the same phase as it powered off, it might pull in to a >> spot +-4 full steps from where it was powered off. >> > > No, not 'MIGHT'... it WILL. Been there, tried that... Not even servo > drives like that. > > I normally go to E-stop on my Bridgeport when I walk away from it for any period of time, like lunch. This cuts off power to the servo amps, but keeps the encoders powered and EMC continues to read the position. It just takes a couple keys to power back up, and I do NOT have to re-home.
You definitely cannot get away with this on steppers unless you have encoders to keep track of position. I have a board that maintains encoder feedback to the PC so that Gecko 320 servo drives can be powered down without loss of position. Again, this is only possible because the encoders send position directly to the PC. Jon ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
