Siemens SINUMERIK 828D Operating Manual page 377

Parameter
or
αP
D1 or ND
(only for ∇ and
∇ + ∇∇∇)
U
NN
Hidden parameters
The following parameters are hidden. They are pre-assigned fixed values or values that can
be adjusted using setting data.
Parameter Description
PL Machining plane
G Change in thread pitch per revolution – (only for P = mm/rev
or in/rev):
Without change in thread pitch
D0 Initial plunge depth for reworking the threads
VR Return distance
Multiple threads 1 thread
α0 Starting angle offset
Turning
Operating Manual, 01/2015, 6FC5398-8CP40-5BA2
Description
Infeed slope as angle – (alternative to infeed slope as flank)
α > 0: Infeed along the rear flank
α < 0: Infeed along the front flank
α = 0: Infeed at right angle to cutting direction
If you wish to infeed along the flanks, the maximum absolute value of this parame-
ter may be half the flank angle of the tool.
Infeed along the flank
Infeed with alternating flanks (alternative)
Instead of infeed along one flank, you can infeed along alternating flanks to avoid
always loading the same tool cutting edge. As a consequence you can increase
the tool life.
α > 0: Start at the rear flank
α < 0: Start at the front flank
First infeed depth or number of roughing cuts
The respective value is displayed when you switch between the number of rough-
ing cuts and the first infeed.
Finishing allowance in X and Z – (only for ∇ and ∇ + ∇∇∇)
Number of noncuts - (only for ∇∇∇ and ∇ + ∇∇∇)
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Programming technology functions (cycles)
Value Can be set in SD
Defined in MD
52005
0
0 mm
2 mm
No
0°
9.2 Rotate
Unit
Degrees
mm
mm
x
377