Motion commands
4.19 Stop with thread cutting (LFOF, LFON, LFTXT, LFWP, LFPOS)
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
181
Example 2
In this example, an M5 thread is to be drilled. The lead of an M5 thread is 0.8 (specified in
table).
With a selected speed of 200 rpm, the feed F is 160 mm/min.
N10 G1 X0 Y0 Z2 S200 F1000 M3
;Approach starting point, activate spindle
N20 G63 Z-50 F160
;Tap, drilling depth 50
N30 G63 Z3 M4
;Retract, programmed reversal of direction
N40 M30
;End of program
4.19 Stop with thread cutting (LFOF, LFON, LFTXT, LFWP, LFPOS)
4.19.1 Retraction for thread cutting (LFOF, LFON, LIFTFAST, DILF, ALF)
Function
The function produces a nondestructive interruption with thread cutting (G33). The function
cannot be used with tapping (G331/G332). With mixed use of both functions, the response
can be parameterized for NC Stop/NC Reset via the machine data. If tapping was
interrupted, then there are several possibilities of programming the fast retraction to a certain
lift position. Both the length of the retraction path and the retraction direction can be defined
as target position.
Programming
LFON
Or
LFOF
Where
LIFTFAST= (if enabled as option)
Or
DILF=
Or
ALF=
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