Rockwell Automation GMLC Reference Manual - Manual (Page 323)

Publication GMLC-5.2 - November 1999
286 Motion Blocks
The Stop Motion block (except when Kill Control is selected) stops the
selected type of motion by blending that motion into a jog at the current
speed of the axis, then stopping the jog at the specified deceleration rate
using the jog profile set in the Positioning page of the Configure Axis Use
dialog box. You can use this block to stop a specific type of motion on an
axis and leave other motion unaffected.
The Stop Motion block also (except when Kill Control is selected)
immediately sets all appropriate motion status variables to 0 (false).
However, Jog_status remains true (1) until the deceleration to zero speed
is complete, at which time it too becomes 0 (false).
See Axis Locked and Axis Done Conditions chapter for a complete
discussion of the operation of these status conditions when motion is
stopped.
When stopping gearing or cams, select the slave axis to turn off the
gearing or camming and stop the axis.
If the master axis is a servo axis (physical or imaginary), this block stops
the master axis, which in turn stops the geared or cammed slave axis
without disabling gearing or camming.
When stopping interpolated motion, all axes currently commanded by the
interpolator stop at the accelerate/decelerate rate (set in the Interpolate
Axes block that initiated the motion).
Kill Control
The Kill Control selection:
• stops all motion on all axes
• disables feedback on all axes
!
ATTENTION: Never enter a deceleration value of zero—
or any expression or equation that equals zero— axis motion
does not stop.