Siemens SINUMERIK 840D sl Programming Manual page 655

No. Param Param
mask internal
14 _CDIR
15 Z2 _GE
16 F1 _FFD
17 FR _FRDP
F2 -FFR
18
FS _FFP2
19
20 _FFA
_PITM
21
22 _PTAB
23 _PTABA
24 _GMODE
25 _DMODE
26 _AMODE
Job Planning
Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
Explanation
TEN THOUSANDS:
0 = No predrilling with reduced feedrate
1 = Predrilling with reduced feedrate
Predrilling feed rate = 0.3 F1, if F1< 0.15 mm/rev
Predrilling feedrate = 0.1 mm/rev, if F1 ≥ 0.15 mm/rev
Milling direction
0 = Down-cut
1 = Up-cut
4 = Conventional + climbing (combined roughing + finishing)
Retraction distance before thread milling (inc)
Drilling feedrate (mm/min or in/min or mm/rev)
Drilling feedrate for remaining drilling depth (mm/min or mm/rev)
Feedrate for thread milling (mm/min or mm/tooth)
Finishing feedrate for CDIR=4 (mm/min or mm/tooth)
Evaluation of feed rates
UNITS: Drilling feed F1
TENS: Drilling feed rate for remaining drilling depth FR
HUNDREDS: Feedrate for thread milling F2
THOUSANDS: Finishing feed rate FS
String as marker for pitch input (for the interface only)
String for thread table ("", "ISO", "BSW", "BSP", "UNC") (for the interface only)
String for selection from thread table (e.g. "M 10", "M 12", ...) (for the interface only)
Geometrical mode, reserved
Display mode
UNITS: Machining plane G17/18/19
0 = Compatibility, the plane effective before cycle call remains active
1 = G17 (only active in the cycle)
2 = G18 (only active in the cycle)
3 = G19 (only active in the cycle)
Alternative mode
UNITS: Drilling depth = Final drilling depth Z1 abs/inc
0 = Absolute
1 = Incremental
TENS: Amount/percentage DF for each additional infeed (degression)
0 = Amount
1 = Percentage (0.001 up to 100%)
Programming cycles externally
18.1 Technology cycles
1)
1)
1)
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