Siemens SINUMERIK 840D sl Programming Manual page 1148

Work preparation
3.25 Programming cycles externally
Sequence
①
②
③
④
⑤
⑥
Note
The sequence cannot be interrupted with a single block.
Example
Oscillation with:
● 20 mm infeed depth at the start
● 10 mm infeed depth at the end
● Total infeed depth 100 mm
● 100 mm stroke
● Feedrate 1000 mm/min
● 1 second sparking-out time
● Standard geometry axes
1148
Start of the cycle at the current position of the oscillating axis with infeed depth 0.
Traversing of the oscillating axis with the grinding width <S_A> as travel path and
feedrate <S_F> with continuous increase in the infeed depth up to the infeed depth at the start
<S_I>.
Sparking out with the sparking-out time <S_P>.
Traversing of the oscillating axis with the grinding width <S_A> as travel path to the starting point
and feedrate <S_F> with continuous increase in the infeed depth up to the infeed depth at the
end <S_J>.
Sparking out with the sparking-out time <S_P>.
Traversing of the oscillating axis with the grinding width <S_A> as travel path to the starting point
and feedrate <S_F>.
Indicates reiterating sequential steps.
The sequence is repeated until the total infeed depth <S_K> has been reached. The last stroke
is then distributed unevenly.
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming