Siemens SINUMERIK 840D sl Function Manual page 182

B1: Continuous-path mode, Exact stop, Look Ahead
4.2 Exact stop mode
Activation of an exact stop criterion
An exact stop criterion is activated in the part program by programming the appropriate G
command:
G command
G601
G602
G603
Block change depending on exact-stop criteria
The figure below illustrates the block change timing in terms of the selected exact stop criterion.
Figure 4-2
Evaluation factor for exact stop criteria
A parameter set-dependent evaluation of the exact stop criteria can be specified via the
following axis-specific machine data:
MD36012 $MA_STOP_LIMIT_FACTOR (exact stop coarse/fine and standstill factor)
Applications:
● Adaptation of the positioning response to different mass ratios, such as after a gearshift
● Reduction in positioning time, depending on various machining states, such as roughing
and finishing
182
Exact-stop criterion
Exact stop fine
Exact stop coarse
Interpolator end
Block change accordance to selected exact stop criterion
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions