HEIDENHAIN PT 880 - Manual (Page 32)

32 I Operating Instructions
I – 3 A
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Enter coordinate (X = 0 mm) and transfer coordinate
as datum for the centerline and press ENT.
Press USE soft key.
Example: Probe the center of a hole with an edge finder and set
the datum. Offsetting X-axis datum by 50 mm from center of
hole. See Fig. I.25 & Fig. I.26.
Main plane: XY
Edge finder axis: parallel to the Z axis
X coordinate of the circle center: X = 50 mm
Y coordinate of the circle center: Y = 0 mm
Operating mode: ACTUAL VALUE
Press PROBE.
Cursor to the axis for which the coordinate is to be
set: X axis.
Press CIRCLE CENTER.
Select plane (X/Y, Y/Z or Z/X) containing the circle
(main plane): Plane XY
ENTER VALUE FOR X
Fig. I.25 Setting the center of a hole
Fig. I.26