Siemens SINUMERIK 840D Operating Manual

Programming technological functions (cycles)
8.1 Drilling
Milling
282 Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
Parameter Description Unit
Through boring Remaining drilling depth with drilling feedrate
 Yes
 No
ZR Residual drilling depth for through boring - ("yes", only for through boring) mm
FR Drilling feedrate for remaining drilling depth - ("yes", only for through boring) mm/min
mm/rev
Stock removal Stock removal before thread milling
 Yes
 No
Return to workpiece surface for stock removal before thread milling.
Thread Direction of rotation of the thread
 Right-hand thread
 Left-hand thread
F2 Feedrate for thread milling mm/min
mm/tooth
Table
Thread table selection:
 without
 ISO metric
 Whitworth BSW
 Whitworth BSP
 UNC
Selection - (not
for table
"Without")
Selection of table value: e.g.
 M3; M10; etc. (ISO metric)
 W3/4"; etc. (Whitworth BSW)
 G3/4"; etc. (Whitworth BSP)
 N1" - 8 UNC; etc. (UNC)
P
- (selection
option only for
table selection
"without")
Pitch ...
 in MODULUS: MODULUS = Pitch/π
 in turns per inch: Used with pipe threads, for example.
When entered per inch, enter the integer in front of the decimal point in the first
parameter field and the figures after the decimal point as a fraction in the second
and third field.
 in mm/rev
 in inch/rev
The pitch is determined by the tool used.
MODULUS
Turns/"
mm/rev
in/rev
Z2 Retraction amount before thread milling
The thread depth in the direction of the tool axis is defined using Z2. Z2 is relative to
the tool tip.
mm
∅ Nominal diameter 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