Cycle78 - Drill Thread Milling - Siemens SINUMERIK 840D sl Programming Manual

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Work preparation
3.25 Programming cycles externally
No.
Parameter
Parameter
mask
internal
21
<_AMODE>
3.25.1.19

CYCLE78 - Drill thread milling

Syntax
CYCLE78(<_RTP>, <_RFP>, <_SDIS>, <_DP>, <_ADPR>, <_FDPR>, <_LDPR>,
<_DIAM>, <_PIT>, <_PITA>, <_DAM>, <_MDEP>, <_VARI>, <_CDIR>, <_GE>,
<_FFD>, <_FRDP>, <_FFR>, <_FFP2>, <_FFA>, <_PITM>, <_PTAB>,
<_PTABA>, <_GMODE>, <_DMODE>, <_AMODE>)
Parameters
No.
Parameter
Parameter
mask
internal
1
RP
<_RTP>
2
Z0
<_RFP>
3
SC
<_SDIS>
4
Z1
<_DP>
5
<_ADPR>
6
D
<_FDPR>
7
ZR
<_LDPR>
8
<_DIAM>
9
P
<_PIT>
10
<_PITA>
11
DF
<_DAM>
12
V1
<_MDEP>
1060
Data type
Meaning
INT
Alternative mode
UNITS:
TENS:
HUNDREDS:
Data type
Meaning
REAL
Retraction plane (abs)
REAL
Reference point of tool axis (abs)
REAL
Safety clearance (to be added to reference point, enter without sign)
REAL
Final drilling depth (abs/inc), see <_AMODE>
REAL
Predrilling depth with reduced drilling feedrate (inc) effective
with <_VARI> TEN THOUSANDS
REAL
Maximum depth infeed (inc)
D ≥ Z1 ⇒ One infeed to the final drilling depth
D < Z1 ⇒ Deep drilling cycle with multiple infeeds and chip removal
REAL
Remaining drilling depth when through-drilling (inc) with FR feed
REAL
Nominal diameter of the thread
REAL
Pitch as a numerical value
INT
Evaluation of thread pitch P
REAL
Absolute value / percentage for each additional infeed (degression),
see<_AMODE>
REAL
Minimum infeed (inc), only active for degression
Final depth Z1 (DP)
0 =
Absolute (compatibility mode)
1 =
Incremental
2 =
Absolute
Reserved
Insertion depth for chamfering (ZFS)
0 =
Absolute
1 =
Incremental
1 =
Pitch in mm/rev
2 =
Pitch in threads/inch
3 =
Pitch in inch/rev
4 =
Pitch as MODULE
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming

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