Siemens SINUMERIK 840Di sl - Page 368

Tool offsets
8.11 Smooth approach and retraction
Fundamentals
368 Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Programming
G140
Or
G141 to G143
Or
G147, G148
Or
G247, G248
Or
G347, G348
Or
G340, G341
Or
DISR=..., DISCL=..., FAD=...
Parameters
G140
Approach and retraction direction independent of the current
compensation side (basic setting)
G141
Approach from the left or retraction to the left
G142
Approach from the right or retraction to the right
G143
Approach and retraction direction depends on the relative position of
the start and end point with respect to the tangent direction
G147
Approach with a straight line
G148
Retraction with a straight line
G247
Approach with a quadrant
G248
Retraction with a quadrant
G347
Approach with a semicircle
G348
Retraction with a semicircle
G340
Approach and retraction in space (basic setting)
G341
Approach and retraction in the plane
DISR
Approach and retraction with straight line (G147/G148)
Distance from the mill edge to the start point of the contour
Approach and retraction with circles (G247, G347/G248, G348)
Radius of the tool center point path
Caution: In the case of REPOS with a semicircle, DISR is the
diameter of the circle
DISCL
DISCL=... Distance from the end point of the
fast infeed motion to the machining plane
DISCL=AC(...) Specifies the absolute position of the end point of the
fast infeed motion
FAD
Speed of the slow infeed motion
FAD=... the programmed value applies according to the
G code of group 15 (feedrate; G93, G94, etc.)
FAD=PM(...) the programmed value is interpreted as a linear feedrate
(as G94), independently of the active G code, group 15
FAD=PR(...) the programmed value is interpreted as a revolutional
feedrate (as G95), independently of the active G code, group 15.