Siemens SINUMERIK 808D ADVANCED Programming And Operating Manual page 155

Explanation of the parameters
SPCA and SPCO (reference point on the first axis of the plane and of the second axis of the plane)
One point along the straight line of the row of holes is defined as the reference point for determining the spacing between
the holes. The distance to the first hole FDIS is defined from this point.
STA1 (angle)
The straight line can be arranged in any position in the plane. It is specified both by the point defined by SPCA and SPCO
and by the angle contained by the straight line and the first axis 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)
The distance of the first hole and the reference point defined under SPCA and SPCO is programmed with FDIS. The
parameter DBH contains the distance between any two holes.
NUM (number)
The NUM parameter is used to define the number of holes.
Programming example: Row of holes
Use this program to machine a row of holes consisting of five tapped holes arranged parallel to the Z axis of the ZX plane
and which have a distance of 20 mm one to another. The starting point of the row of holes is at Z20 and X30 whereby the
first hole has a distance of 10 mm from this point. The geometry of the row of holes is described by the cycle HOLES1. First,
drilling is carried out using CYCLE82, and then tapping is performed using CYCLE84 (tapping without compensating chuck).
The holes are 80 mm in depth (difference between reference plane and final drilling depth).
Programming and Operating Manual (Milling)
155
6FC5398-4DP10-0BA1, 01/2014