Ultra3000 'home limit switch' from ControlLogix via Sercos

IPSI John

Member
Join Date
Jun 2007
Location
Alabama
Posts
33
I'm having trouble figuring out how to have a limit switch that is an imput to the ControlLogix controller be the 'home limit switch' for the Ultra3000 via a Sercos link without hardwiring the switch to the drive. Any ideas on how this is done?
 
If you want to have a consistent home position for the axis, connect the sensor to the drive.

If consistency isn't too important or tolerance is loose....
  • enable the axis (MSO)
  • move slowly toward the sensor (MAM)
  • stop when the sensor is activated (MAS)
  • move more slowly in the opposite direction (MAM)
  • stop when sensor is deactivated (MAS)
  • execute MAH with axis set for passive immediate homing and empirically determined home position
 

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