> Don't forget I'm running servos not steppers. But yes, I'm running them in > step+dir mode. This is the first time I'm using a servo with this control > method so I really don't know what could happen if a commanded movement > cannot be achieved. I suppose the servo will trigger an overload alarm or > something like that. I plan to swtich to analog mode sometime in the near > future because it's a better control method in my opinion. But for now we > had to go with the open loop config because we were really short of time. > What kind of driver are you using? I've got HP_UHU on brushed DC servo's and a STMBL drive on the AC Servo Harmonic Drive. In both cases those fault out if the following error doesn't match. In other words, the drive counts the steps input and if the encoder pulses don't match the steps past a threshold the motor faults out.
I've not ever faulted the AC Servo Bergerda drive but I'm pretty sure it also faults with a following error. So step/dir works fine for me. There's no need to get the PC to do that for you. John Dammeyer _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
