Siemens sinumerik 840D sl Operating Manual page 332

Programming technology functions (cycles)
8.3 Contour turning
Parameters Description
FX Feedrate in X direction
FZ Feedrate in Z direction
Machining 

Machining 
direction

Position 



D Maximum depth infeed - (only for ∇)
UX or U Finishing allowance in X or finishing allowance in X and Z – (only for ∇)
UZ Finishing allowance in Z – (only for ∇)
XDA 1. Grooving limit tool ∅ (abs) – (end face or rear face only)
XDB 2. Grooving limit tool ∅ (abs) – (end face or rear face only)
Allowance Allowance for prefinishing


DI For zero: Continuous cut - (only for ∇)
U1 Compensation allowance in X and Z direction (inc) – (only for allowance)


Set machining area Set machining area limits
limits


N Number of grooves
DP Distance between grooves (inc)
332
∇ (roughing)
∇∇∇ (finishing)
Face
Longitudinal
front
back
internal
external
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/rev
mm/rev
mm
mm
mm
mm
mm
mm
mm
mm
Turning