HEIDENHAIN PT 880 - Manual (Page 31)

POSITIP 880 31
I – 3 A
c
tu
al V
a
lue
0 is offered as a default value for the coordinate. Enter
the desired coordinate for the workpiece edge, for
example Y = 0 mm and
set the coordinate as a datum for this workpiece
edge. Press ENT.
Press USE soft key.
Example: Set centerline between two workpiece edges as datum.
See Fig. I.23 & Fig. I.24.
The position of the centerline M is determined by probing the edges 1
and 2 .
The centerline is parallel to the Y axis.
Desired coordinate of the centerline: X =0 mm
Operating mode: ACTUAL VALUE
Press PROBE.
Cursor to the axis for which the coordinate is to be
set: X axis.
Press CENTER LINE.
Move the edge finder toward workpiece edge 1 until
the LEDs in the edge finder light up.
Move the edge finder toward workpiece edge 2 until
the LEDs in the edge finder light up. The distance
between the edges is displayed on the message bar.
Retract the edge finder from the workpiece.
ENTER VALUE FOR Y + 0
Fig. I.23 Setting centerline between two edges
Fig. I.24
Spacing between edges is displayed on the message bar
when using the probe centerline feature.
1. PROBE 1ST EDGE IN X
2. PROBE 1ST EDGE IN X