Siemens Sinumerik 840D Operating Turning page 31

Milling
N
Number of edges
(Polygon)
N
Number of slots
(Circular
slot)
NT Number of teeth per cutter
(Thread
milling)
P Thread pitch...
(Thread
in modulus: modulus = pitch/π
milling)
in mm/rev
in inch/rev
in threads per inch
The thread pitch depends on the tool used
PL
Machining plane
G17 (XY)
G18 (ZX)
G19 (YZ)
Positioning Positioning between the slots:
Straight:
(Circular
The next location is approached along a
slot)
straight line at rapid traverse.
Circle:
The next location is approached along a
circular path at the programmed feedrate
R1 Rounding radius
(Polygon)
R2
Leaving radius
(Path milling) (only when leaving with "quarter circle or semi
circle")
840D/828D SINUMERIK Operate
Unit
modulus
mm/rev
in/rev
Threads/"
mm
mm
Page 29
Section 5
Notes
B500
B500