Siemens SINUMERIK 840D sl Operating Manual page 197

Parameter
rev
NN
VR
Multiple
N
DA
Machining
1) Parameter description refers to plane G18; plane selection G17 or G19 possible in selection field
(MD 52006: $MCS_DISP_PLANE_TURN)!
Parameters for face thread
Parameter
PL
P
HMI sl Turning
Operating Manual, 01/2008, 6FC5398-7AP10-0BA0
Description
Finishing allowance in X and Z – (only for ∇ and ∇ + ∇∇∇)
Number of noncuts - (only for ∇∇∇ and ∇ + ∇∇∇)
Return distance (inc)
No
•
– α0 starting angle offset
Yes
•
– N number of threads
– DA thread changeover depth (inc)
– Machining: Complete or as of thread N1 (as of this thread) or
only thread X
– NX 1 of N threads (NX = 1...N)
Number of threads
The threads are distributed evenly across the periphery of the turned part; the first
thread is always placed at 0°.
Thread changeover depth (inc)
First machine all threads in sequence to thread change depth DA, then machine
all threads in sequence to depth 2 · DA, etc., until the final depth is reached.
DA = 0: Thread changeover depth is not taken into account, i.e. finish machining
each thread before starting the next thread.
Complete
•
• As of thread N1 (1...N)
Machine from N1 to N
Only thread -NX (1...N)
•
NX ≠ 0: Only machine thread NX
NX = 0: Machine all threads
Description
Machining plane:
1)
G18 (ZX)
Thread pitch in mm/revolution
•
Thread pitch in inch/revolution
•
Threads per inch
•
Thread pitch in MODULE
•
Programming a cycle
4.5 Rotate
Unit
mm
mm
mm
Unit
mm/rev
in/rev
threads/"
MODULE
197