Siemens SINUMERIK Series Function Manual page 611

Use case 1: Cancel axis/spindle
The behavior when canceling the axis/spindle function is the same as for "delete distance-to-
go":
DB21, ... DBX6.2 = 1 (delete distance-to-go)
Use case 2: Stop axis/spindle
The following traversing motion of the axis/spindle controlled from the main run is stopped:
● PLC axis
● Asynchronous oscillating axis
● Command axis by static synchronized action
● Overlaid motion: $AA_OFF,DRF handwheel traversal, online tool offset and external zero
Following axis movements of the axis/spindle are not stopped.
Description of the sequence:
● PLC → NCK: Request to stop the axis/spindle
● NCK: Brakes the axis along a ramp.
● NCK confirms the execution:
Result: The axis/spindle is stopped.
Note
Following axis movements
Following axis movements can only be suppressed when the leading axis stops.
Retraction motion
Retraction motion triggered by the "Extended stop and retract" function cannot be stopped.
References
Function Description, Special Functions; Extended Stop and Retract (R3)
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
offset.
DB31, ... DBX28.6 = 1 (stop along braking ramp)
– DB31, ... DBX60.6 = 1 (exact stop coarse)
– DB31, ... DBX60.7 = 1 (exact stop fine)
– DB31, ... DBX63.2 = 0 (axis stop active)
– DB31, ... DBX64.6 / 7 = 0 (traversing command minus/plus)
– Axis status interrupted with system variable $AA_SNGLAX_STAT == 3
10.3 Motion behavior and interpolation functions
P2: Positioning axes
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