Siemens SINUMERIK 840D sl Operating Manual page 389

Procedure
Parameters, G code program (undercut, thread DIN)
PL Machining plane
SC Safety clearance
F Feedrate
Parameter
Machining
Position
Machining
direction
Form
P
X0
Milling
Operating Manual, 09/2011, 6FC5398-7CP40-2BA0
1. The part program to be executed has been created and you are in the
editor.
2. Press the "Turning" softkey.
3. Press the "Undercut" softkey.
4. Press the "Thread undercut DIN" softkey.
The "Thread Undercut (DIN 76)" input window opens.
- OR -
Press the "Thread undercut" softkey.
The "Thread Undercut" input window opens.
mm
*
Description
∇ (roughing)
•
∇∇∇ (finishing)
•
• ∇ + ∇∇∇ (roughing and finishing)
Machining position:
Longitudinal
•
Parallel to the contour
•
Normal (form A)
•
Short (form B)
•
Thread pitch (select from the preset DIN table or enter)
Reference point X ∅
Programming technological functions (cycles)
8.4 Turning - only for G code programs
Unit
mm/rev
mm
389