Siemens Sinumerik 840D Operating Turning page 9

Turning
Location
front
contour-
back
turning
internal
(Metal re-
external
moval,
parting)
LR Thread run-out (inc)
LW Thread lead (inc)
Multi-start
No
α0 Starting angle offset
Yes
Nr. of thread starts are spread evenly
around the circumference of work piece
N Number of back-cuts (N = 1...65535)
(Back-cut)
N
Nr of thread starts
(Thread)
NN Number of dummy passes
(Thread)
P Thread pitch (to be selected from DIN-table) or
(Thread re- entered manually
lief DIN)
P
Selection of the thread pitch/-starts
(Longitudinal
Thread pitch in mm/rev
thread )
Thread pitch in inch/rev
Threads per inch
Thread pitch in modulus
R1
Rounding radius 1
R2 Rounding radius 2
R3 Rounding radius 3
R4 Rounding radius 4
R Radius (n = 1...3) alternative to FS
S
Spindle speed
SR Reduced speed
SV Maximum rotary speed for constant cutting
speed
840D/828D SINUMERIK Operate
Unit
mm
mm
mm/rev
mm/rev
in/rev
threads/"
modulus
mm
mm
mm
mm
mm
revs/min
revs/min
revs/min
Page 7
Section 3
Notes
B500
B500