Rockwell Automation GMLC Reference Manual - Manual (Page 290)

Publication GMLC-5.2 - November 1999
Configure Cam 253
The GML Commander diagram below implements the three-part
position-lock cam profile shown earlier.
The acceleration profile is first configured and then executed. The
operating profile is then immediately configured as a pending position-
lock cam which takes effect as soon as the acceleration profile has
completed. The operating profile is executed continuously until the stop
input is activated, at which time the deceleration profile is configured as
another pending position-lock cam. The deceleration profile is executed at
the conclusion of the current pass of the operating profile to bring the axis
smoothly to a stop.