Siemens SINUMERIK 840D Programming Manual page 124

Milling Cycles
3
3.5 Slots on a circle - SLOT1
VARI, MIDF, FFP2 and SSF (machining type,
infeed depth, feedrate and speed)
You can define the type of machining with parameter
VARI.
Possible values are:
UNITS DIGIT
• 0=Complete machining in two parts
- Machining of the slot (SLOT1, SLOT2) or
pocket (POCKET1, POCKET2) to the
final machining allowance is performed at the
spindle speed programmed before the cycle
was called and with feedrate FFP1. Depth
infeed is defined with MID.
- Solid machining of the remaining machining
allowance is carried out at the spindle
speed defined by SSF and feedrate FFP2.
The depth infeed is performed via MIDF.
If MIDF=0, the infeed is equal to the final
depth.
If FFP2 is not programmed, feedrate FFP1
is active. The situation is similar if SSF is
missing, i.e., the speed programmed before
the call is active.
• 1=Roughing
The slot (SLOT1, SLOT2) or pocket (POCKET1,
POCKET2) is solid machined up to the finishing
allowance at the speed programmed before the
cycle call and feedrate FFP1. The depth infeed is
programmed in MID.
• 2=Finishing
The cycle requires that the slot (SLOT1, SLOT2) or
pocket (POCKET1, POCKET2) is already machined
to a remaining final machining allowance and that it
is only necessary to machine the final machining
allowance. If FFP2 and SSF are not programmed,
the feedrate FFP1 or the speed programmed before
the cycle call is active. The depth infeed is
programmed with MIDF.
TENS DIGIT (infeed)
• 0=Perpendicular with G1
• 1=Perpendicular with G1
• 3=Oscillation with G1
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SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition
03.96
04.00
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