Siemens SINUMERIK 840D Operating Manual

Programming technological functions (cycles)
8.5 Contour turning - only for G code programs
Milling
404 Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
Parameters
Description Unit
FX Feedrate in X direction mm/rev
FZ Feedrate in Z direction mm/rev
Machining
 ∇ (roughing)
 ∇∇∇ (finishing)
Machining
direction
 Face
 Longitudinal
Position
 front
 back
 internal
 external
D Maximum depth infeed - (only for ∇) mm
UX or U Finishing allowance in X or finishing allowance in X and Z – (only for ∇) mm
UZ Finishing allowance in Z – (only for UX) mm
XDA 1. Grooving limit tool ∅ (abs) – (end face or rear face only) mm
XDB 2. Grooving limit tool ∅ (abs) – (end face or rear face only) mm
Allowance Allowance for prefinishing
 Yes
U1 contour allowance
 No
DI For zero: Continuous cut - (only for ∇) mm
XD - (only for unmachined part description, cylinder and allowance)
 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)
mm
ZD - (only for unmachined part description, cylinder and allowance)
 For unmachined part description, cylinder
Allowance or cylinder dimension (abs or inc)
 For unmachined part description, allowance
Allowance on the contour (abs or inc)
mm
U1 Compensation allowance in X and Z direction (inc) – (only for allowance)
 Positive value: Compensation allowance is kept
 Negative value: Compensation allowance is removed in addition to finishing
allowance
mm

Siemens SINUMERIK 840D Specifications

General

Series	SINUMERIK 840D
Axes	Up to 31
Channels	Up to 10
Operating System	Windows-based
Power Supply	24 V DC
Control Unit Type	CNC
Interface	Ethernet, PROFIBUS
Display	TFT color display
Interpolation	Spline
PLC	Integrated PLC
Data Storage	CompactFlash, USB