Siemens sinumerik 840D sl Operating Manual page 330

Programming technology functions (cycles)
8.3 Contour turning
Parameters Description
XD - (only for unmachined part description, cylinder and allowance)
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
ZD - (only for unmachined part description, cylinder and allowance)
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
Allowance Allowance for pre-finishing - (only for ∇∇∇)
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
U1 Compensation allowance in X and Z direction (inc) – (only for allowance)
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
Set machining area Set machining area limits
limits
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
N Number of grooves
DP Distance between grooves
330
For unmachined part description, cylinder
– Allowance or cylinder dimension ∅ (abs)
– Allowance or cylinder dimension (inc)
For unmachined part description, allowance
– Allowance on the contour ∅ (abs)
– Allowance on the contour (inc)
For unmachined part description, cylinder
Allowance or cylinder dimension (abs or inc)
For unmachined part description, allowance
Allowance on the contour (abs or inc)
Yes
U1 contour allowance
No
Positive value: Compensation allowance is kept
Negative value: Compensation allowance is removed in addition to finishing
allowance
Yes
– XA: 1. Limit XA ∅
– XB: 2. Limit XB ∅ (abs) or 2nd limit referred to XB (inc)
– ZA: 1. Limit ZA
– ZB: 2. Limit ZB (abs) or 2nd limit referred to ZB
No
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
Unit
mm
mm
mm
mm
mm
Turning