Siemens SINUMERIK 840D, Operating Manual

Page: 287 / 610

Programming technological functions (cycles)
8.1 Drilling
Milling
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
287
Procedure
1. The part program or ShopMill program to be processed has been
created and you are in the editor.
2. Press the "Drilling" softkey.
3. Press the "Positions" and "Circle" softkeys.
The "Position circle" input window opens.
Parameter Description Unit
LAB
(only for G code)
Repeat jump label for position
PL Machining plane
Circular pattern
(only for G code)
Selection option for the following patterns:

Pitch circle
 Full circle
Z0 (only for
ShopMill)
Z coordinate of the reference point Z mm
X0 X coordinate of the reference point X (abs) mm
Y0 Y coordinate of the reference point Y (abs) mm
α0 Starting angle for first position.
Positive angle: Full circle is rotated counterclockwise.
Negative angle: Full circle is rotated in clockwise direction. Degrees
α1 Advance angle - (for pitch circle pattern only)
After the first hole has been drilled, all further positions are advanced by this angle.
Positive angle: Further positions are rotated counterclockwise.
Negative angle: Further positions are rotated clockwise. Degrees
R Radius mm
N Number of positions
Positioning Positioning motion between the positions

Straight line
Next position is approached linearly at rapid traverse.

Circle
Next position is approached at the programmed feedrate (FP) along a circular path.