Rockwell Automation GMLC Reference Manual - Manual (Page 247)

Publication GMLC-5.2 - November 1999
210 Motion Blocks
• Axis_status = 2 (Jogging).
• Lock_status = 0 (Unlocked).
When the jog is done:
• Jog_status = 0 (false).
• Axis_status = 1 (Unlocked).
For physical axes, when the jog is done and the position error of the axis
is less than the position lock tolerance:
• Axis_status = 0 (Locked).
• Lock_status = 1 (Locked).
See the Axis Locked and Axis Done Conditions chapter of this manual, for
a complete discussion of the difference between these conditions. See the
System Variables chapter in this manual for more information on
variables.
Override Profile
You can also use the Jog Axis block to override the power-up jog profile
selection, and jog the axis using a different velocity profile. Select
Override Profile and select both the desired axis and motion profile—
trapezoidal, S-curve, or parabolic. Enter values or expressions for the
desired direction, speed, acceleration and deceleration. Speed,
acceleration, and deceleration values can be entered either as percentages
of the current 100% values, or directly in the position units of the axis.
See the Motion Settings section of the Control Setting Blocks chapter for
information on the three types of move profiles.
Merged Jogs
You can also use jogs to terminate the motion produced by a previous
Position Lock Cam, Time Lock Cam, or Gear Axes block, with the result
that the axis continues moving at the specified speed. Select Merge from
Cam, or Gear, and select the desired axis and type of merge—At Current
Speed, or At Programmed Speed (see the following paragraphs). Enter
values or expressions for the desired speed, acceleration, and
deceleration.