Siemens SINUMERIK 840D SL Operating Manual page 414

Programming technological functions (cycles)
8.4 Turning - only for G code programs
Parameters, G code program
PL Machining plane
Parameter
Machining
Infeed (only for ∇ and ∇
+ ∇∇∇)
Thread
X0
Z0
P0
X1 or X1α
Z1
P1
X2 or X2α
Z2
P2
414
Description
∇ (roughing)
•
∇∇∇ (finishing)
•
∇ + ∇∇∇ (roughing and finishing)
•
Linear:
•
Constant cutting depth infeed
Degressive:
•
Constant cutting cross-section infeed
Internal thread
•
External thread
•
Reference point X ∅ (abs, always diameter)
Reference point Z (abs)
Thread pitch 1
Intermediate point 1 X ∅ (abs) or
•
• Intermediate point 1 in relation to X0 (inc) or
Thread taper 1
•
Incremental dimensions: The sign is also evaluated.
Intermediate point 1 Z (abs) or
•
Intermediate point 1 in relation to Z0 (inc)
•
Thread pitch 2 (unit as parameterized for P0)
Intermediate point 2 X ∅ (abs) or
•
Intermediate point 2 in relation to X1 (inc) or
•
Thread taper 2
•
Incremental dimensions: The sign is also evaluated.
Intermediate point 2 Z (abs) or
•
Intermediate point 2 in relation to Z1 (inc)
•
Thread pitch 3 (unit as parameterized for P0)
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
Unit
mm
mm
mm/rev
in/rev
turns/"
MODULUS
mm
Degrees
mm
mm/rev
in/rev
turns/"
MODULUS
mm
Degrees
mm
mm/rev
in/rev
turns/"
MODULUS
Milling