Boundary conditions
● The functions for programming the path traversing characteristics apply regardless of the
programmed feedrate characteristic.
● The programmed feedrate characteristic is always absolute regardless of G90 or G91.
● The feed characteristics FLIN and FCUB are active with G93 and G94, however, not with
G95, G96/G961 and G97/G971.
● For active compressor COMP..., and combining several blocks to create a spline segment,
the following applies:
FNORM: The F word of the last block in the group applies to the spline segment.
FLIN: The F word of the last block in the group applies to the spline segment.
The programmed F value applies until the end of the segment and is then
approached linearly.
FCUB: The generated feedrate spline deviates from the programmed end points by an
amount not exceeding the value set in machine data MD20172 $MC_COM‐
PRESS_VELO_TOL.
F=FPO(…,…,…): These blocks are not compressed.
Work preparation
3.14 Path traversing behavior
NC programming
838 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
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