Siemens Sinumerik 840D sl Programming Manual page 811

Param Param
No.
Mask intern
16
NN NID
17
P0 _PP1
18
P1 _PP2
19
P2 _PP3
20
_VARI
21
N _NUMTH
22
_VRT
23
D1 _MID
24
DA _GDEP
25
_IFLANK
26
_PITA
27
_PITM1
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
Explanation
Number of non-cuts
Pitch for 1st section of thread, see _PITA
Pitch for 2nd section of thread, see _PITA
Pitch for 3rd section of thread, see _PITA
Machining
UNITS: Technology
1 = External thread with linear infeed
2 = Internal thread with linear infeed
3 = External thread with degressive infeed, cross-section of cut remains constant
4 = Internal thread with degressive infeed, cross-section of cut remains constant
TENS: Reserved
HUNDREDS: Infeed type
0 = Compatibility mode for _IANG
1 = Infeed on one side
2 = Infeed alternate sides
THOUSANDS: Reserved
TEN THOUSANDS: Alternative depth infeed
0 = Compatibility, preset number of roughing cuts (_NRC)
1 = Preset value for 1st infeed (_MID)
HUNDRED THOUSANDS: Machining type
0 = Compatibility (roughing and finishing)
1 = Roughing
2 = Finishing
3 = Roughing and finishing
MILLION: Machining sequence for multistart thread
0 = In ascending order of threads
1 = In descending order of threads
Number of threads
Return distance (inc)
0 = A lift-off distance of 1 mm is used internally regardless of the active system (inch or
metric)
> 0 = lift-off distance
First infeed, see _VARI (TEN THOUSANDS)
Thread changeover depth (only effective with "multiple start")
0 = Do not observe any thread changeover depth
> 0 = Observe thread changeover depth
Infeed slope as width (for interface only)
Evaluation of thread pitch
0 = Compatibility mode for pitch,
Evaluation _PP1 to _PP3 as previously, according to active system (metric/inch)
1 = Pitch in mm
2 = Pitch in TPI (threads per inch)
3 = Pitch in inches
4 = MODULE
String as marker for pitch input (for the interface only)
Programming cycles externally
16.1 Technology cycles
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