Siemens SINUMERIK 840D Programming Manual page 94

Drilling Cycles and Drilling Patterns 03.96
2 2
2.3 Drill pattern cycles
Description of parameters
Y
SPCA and SPCO (reference point abscissa and
ordinate)
SPCA
One point along the straight line of the row of holes
is defined as the reference point for determining the
distances between the holes. The distance to the
first hole FDIS is defined from this point.
STA1 (angle)
The straight line can be in any position on the plane.
STA1
It is specified both by the point defined by SPCA and
SPCO and by the angle contained by the straight line
X
and the abscissa of the workpiece coordinate
system that is active when the cycle is called. The
angle is entered under STA1 in degrees.
FDIS and DBH (distance)
Under FDIS you enter the distance between the first
hole and the reference point defined under SPCA
and SPCO. The parameter DBH contains the
distance between any two holes.
NUM (number)
You determine the number of holes with the
parameter NUM.
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SINUMERIK 840D/840Di/810D/FM-NC Programming Guide, Cycles (PGZ) - 04.00 Edition