Siemens SINUMERIK 840D sl Programming Manual page 700

Programming cycles externally
18.1 Technology cycles
No. Param Param
mask internal
15 N _NUMTH
16 VR _SDIS
17 D1 _MID
18 DA _GDEP
19 G _PIT1
20 _FDEP
N1 _GST
21
_GUD
22
23 _IFLANK
24 _PITA
25 _PITM
26 _PTAB
27 _PTABA
700
Explanation
TEN THOUSANDS: Alternative depth infeed
0 = Preset number of roughing cuts (_NRC)
1 = Preset value for 1st infeed (_MID)
HUNDRED THOUSANDS: Machining type
1 = Roughing
2 = Finishing
3 = Roughing and finishing
ONE MILLION: Machining sequence for multistart thread
0 = In ascending order of threads
1 = In descending order of threads
Number of thread turns
Return distance, inc
First infeed depth, in conjunction with _VARI (TEN THOUSANDS)
Thread changeover depth (only effective with "multiple start")
0 = Do not observe any thread changeover depth
> 0 = Observe thread changeover depth
Change of pitch per revolution
0 = Pitch is constant (G33)
> 0 = Pitch increases (G34)
> 0 = Pitch reduces (G35)
Insertion depth (enter without sign)
Starting thread N1 = 1...N, in conjunction with _AMODE (HUNDRED THOUSANDS)
Reserved
Infeed slope as width (for interface only)
Pitch unit (evaluation of PIT and/or MPIT)
0 = Pitch in mm - MPIT/PIT evaluation
1 = Pitch in mm - PIT evaluation
2 = Pitch in TPI - evaluation of PIT (threads per inch)
3 = Pitch in inches - PIT evaluation
4 = MODULE- evaluation of PIT
String as marker for pitch input (for the interface only)
String for thread table (for the interface only)
String for selection in the thread table (for the interface only)
1)
1)
1)
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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