Siemens SINUMERIK 840D sl Operating Manual page 397

Parameter
D1 or ND
(only for ∇ and
∇ + ∇∇∇)
rev
NN
VR
Multiple threads
Parameters, G code program (thread, conical)
PL Machining plane
Milling
Operating Manual, 09/2011, 6FC5398-7CP40-2BA0
Description
First infeed depth or number of roughing cuts
The respective value is displayed when you switch between the number of
roughing cuts and the first infeed.
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 thread turns
The thread turns are distributed evenly across the periphery of the
turned part; the 1st thread turn is always located at 0°.
DA Thread changeover depth (inc)
First machine all thread turns sequentially to thread changeover
depth DA, then machine all thread turns sequentially 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.
Machining:
Complete, or
•
from turn N1
•
N1 (1...4) start thread N1 = 1...N
only thread NX
•
NX (1...4) 1 from N threads
Programming technological functions (cycles)
8.4 Turning - only for G code programs
or
Unit
mm
mm
mm
Degrees
mm
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