Siemens SINUMERIK 840D Programming Manual page 154

Milling Cycles 03.96
3 3
12.97
3.10 Milling circular pockets - POCKET4
Description of parameters
Y
_PA
See Section 2.1.2. (Drilling, Centering – CYCLE81)
for a description of parameters _RTP, _RFP, _SDIS
See Section 3.7 (POCKET1) for a description of
parameter _DP.
G2
G3
See Section 3.9 (POCKET3) for a description of
parameters _MID, _FAL, _FALD, _FFP1, _FFD, _CDIR,
_MIDA, _AP1, _AD, _RAD1, _DP1.
See Section 3.2 for cycle setting data _ZSD[1].
X
_PRAD (pocket radius)
The shape of the circular pocket is determined by
the radius only.
If the radius is less than the tool radius of the active
tool, the cycle is aborted after alarm
61105 "Milling cutter radius too large" is output.
_PA, _PO (pocket center point)
With parameters _PA and _PO you define the center
point of the pocket. Circular pockets are always
measured from the center.
_VARI (machining mode)
You can define the type of machining with parameter
_VARI.
Possible values are:
Units digit:
• 1=Roughing
• 2=Finishing
Tens digit (infeed):
• 0=Perpendicular to the pocket center with G0
• 1=Perpendicular to the pocket center with G1
• 2=Along an helical path
If another value has been programmed for
parameter _VARI, the cycle is aborted after alarm
61002 "Machining type incorrectly defined" is output.
 Siemens AG 2000 All rights reserved.
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SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition