Siemens SINUMERIK 840D Programming Manual page 145

3
12.97
Description of parameters
See Subsection 2.1.2. (Drilling, Centering –
CYCLE81) for a description of parameters RTP,
RFP, SDIS.
See Section 3.5 (SLOT1) for a description of
parameters DP, DPR, FFD, FFP1, MID, CDIR, FAL,
VARI, MIDF, FFP2, SSF.
See Section 3.2 for cycle setting data _ZSD[1].
NUM (number)
The number of slots is determined with the
parameter NUM.
AFSL and WID (angle and circumferential slot
width)
With parameters AFSL and WID you define the
shape of a slot in the plane. The cycle checks
whether the slot width is violated with the active tool.
If this is the case, alarm
61105 "Cutter radius too large" is output
and the cycle is aborted.
CPA, CPO and RAD (center point and radius)
The position of the circle in the machining plane is
defined by the center point (parameters CPA and
CPO) and the radius (parameter RAD). Only positive
values are permissible for the radius.
STA1 and INDA (start angle and indexing angle)
The arrangement of circumferential slots on the
circle is defined by these parameters.
STA1 defines the angle between the positive
direction of the abscissa of the workpiece coordinate
system active before the cycle was called and the
first circumferential slot.
The INDA parameter contains the angle from one
circumferential slot to the next.
If INDA=0, the indexing angle is calculated from the
number of circumferential slots so that they are
arranged equally around the circle.
© Siemens AG, 2002. All rights reserved
SINUMERIK 840D/840Di/810D Programming Guide Cycles (PGZ) – 11.02 Edition
3.6 Circumferential slot – SLOT2
Y
CPA
INDA
3
Milling Cycles
AFSL
STA1
WID
X
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