Programming and Operating Manual (Milling) 
118  6FC5398-4DP10-0BA1, 01/2014 
DISCL=...  ; Distance of the end point for the fast infeed motion from the machining plane (safety clearance) 
FAD=...  ; Speed of the slow infeed motion 
  The programmed value acts according to the active command of the G group 15 (feed: G94, G95) 
See the following illustration for approaching along a straight line using the example of G42 or retraction using G41 and 
completion with G40: 
 
Programming example: Approach/retraction along a straight line in a plane 
; Activate tool, X/Y plane 
N30 G42 G147 DISR=8 F600 X4 Y4 
; Approach, point P4 programmed 
; Continue in the contour 
N120 G40 G148 DISR=8 F700 X8 Y8 
; Retraction, point P0 programmed 
See the following illustration for approaching along a quadrant using the example of G42 or retraction using G41 and 
completion with G40: