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Rockwell Automation GMLC Reference Manual User Manual

Page 309

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Publication GMLC-5.2 - November 1999

272

Motion Blocks

Merge from Jog

Select Merge from Jog to let a previously programmed Jog Axis block
smoothly ramp the axis to the proper speed before the Time Lock Cam
block is executed. This is useful when the cam must be run continuously,
but the specified profile has a non-zero velocity at the start/end point.

For the smoothest transition between the jog and the time-lock cam, make
sure that the speed entered in the previous Jog Axis block equals the
speed implied for the axis at the start/end point of the specified profile.
See Configure Cam in this chapter for information on specifying the
desired cam profile.

Synchronizing Time Lock Cams on Multiple Axes

When you select Synchronize with next TCam, the current Time Lock
Cam block executes simultaneously with the following Time Lock Cam
block. This lets you simultaneously begin cams on multiple axes, as
shown below.

When you select Synchronize with next TCam, the block immediately
following the Time Lock Cam block must be another Time Lock Cam
block GML Commander does not let you connect the two blocks. In the
example above, select Synchronize with next TCam in the first three Time
Lock Cam blocks—but not in the last block—to start all four axes
simultaneously.