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