HEIDENHAIN SW 68894x-03 - Manual (Page 93)

HEIDENHAIN CNC PILOT 640 93
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p Defining the workpiece zero point
In the dialog, the distance between the machine zero point and the
workpiece zero point (also know as offset) is shown as XN and ZN. If
the workpiece zero point is changed, the display values will be
changed accordingly.
Select Setting up
Select Set axis values
Touch the workpiece zero point (end face)
Define this point as the "workpiece zero point Z"
Enter the distance between the tool and the workpiece zero point as
"measuring point coordinate Z"
The CNC PILOT calculates the workpiece zero point Z
Machine zero point Z = workpiece zero point Z
(offset = 0)
This makes it possible to enter the zero point shift
directly in ZN
The workpiece zero point can also be set in the Z axis
using a touch probe. When setting the zero point, the
control checks which type of tool is currently active. If you
select the Workpiece zero point setup function and a
touch probe is inserted, the control automatically adjusts
the input form. Press NC Start to start the measuring
process.
SETTING THE WORKPIECE ZERO POINT