Siemens Sinumerik 840D sl Programming Manual page 668

Punching and nibbling
12.1 Activation, deactivation
Further information
Punching and nibbling with leader (PONS/SONS)
Punching and nibbling with leader is not possible in more than one channel simultaneously.
PONS or SONS can only be activated in one channel at a time.
Travel-dependent acceleration (PUNCHACC)
Example:
PUNCHACC(2,50,10,100)
Distance between holes less than 2 mm:
The axis accelerates at a rate corresponding to 50% of maximum acceleration.
Distance between holes from 2 mm to 10 mm:
Acceleration is increased to 100%, proportional to the spacing.
Distance between holes more than 10 mm:
Traverse at an acceleration of 100%.
Initiation of the first stroke
The instant at which the first stroke is initiated after activation of the function differs depending
on whether nibbling or punching is selected:
•
PON/PONS:
-
•
SON/SONS:
-
-
668
All strokes – even the one in the first block after activation – are executed at the block
end.
The first stroke after activation of the nibbling function is executed at the start of the
block.
Each of the following strokes is initiated at the block end.
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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