The "fast retraction" function is deactivated with ALF=0.
CAUTION
Risk of collision
When the tool radius compensation is activated, then:
● For G41 codes 2, 3, 4
● For G42 codes 6, 7, 8
should not be used, as in these cases, the tool would move to the contour and would collide
with the workpiece.
Code numbers with traversing directions for LFWP
For LFWP, the direction in the machining plane is derived from following assignment:
● G17: X/Y plane
ALF=1: Retraction in the X direction
ALF=3: Retraction in the Y direction
● G18: Z/X plane
ALF=1: Retraction in the Z direction
ALF=3: Retraction in the X direction
● G19: Y/Z plane
ALF=1: Retraction in the Y direction
ALF=3: Retraction in the Z direction
See also
Fast retraction during thread cutting (LFON, LFOF, DILF, ALF, LFTXT, LFWP, LFPOS, POLF,
POLFMASK, POLFMLIN) (Page 231)
3.3.8 Motion sequence for interrupt routines
Interrupt routine without LIFTFAST
Axis motion is braked along the path down to standstill (zero speed). The interrupt routine then
starts.
The standstill position is saved as interrupt position and is approached at the end of the
interrupt routine for REPOS with RMIBL.
Interrupt routine with LIFTFAST
Axis motion is braked along the path. The LIFTFAST motion is simultaneously executed as
superimposed motion. If the path motion and LIFTFAST motion have come to a standstill (zero
speed), the interrupt routine is started.
Work preparation
3.3 Interrupt routine (ASUB)
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0 549
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