Rockwell-automation GMLC Reference Manual Manual de usuario Pagina 240

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Publication GMLC-5.2 - November 1999
Move Axis 203
This motion can be thought of as smoothly shifting the master reference
position of the cam by the specified distance, thus shifting the master axis
positions relative to the slave axis positions.
As shown in the previous figure, the phase shift move affects neither the
actual nor the command position of the master. Therefore, a phase shift
move of one slave axis does not affect other axes slaved to the same
master axis.
The figure below shows the motion profile of a position-lock cam and the
resultant profile after execution of a phase shift Move Axis block and an
incremental move on the slave axis (for comparison).
!
ATTENTION:
Although you command a phase shift
move along the slave axis, always set the distance value
in the position units of the corresponding master axis of
the position-lock cam.
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