Machine Setup; Defining The Workpiece Datum - HEIDENHAIN 548431-05 User Manual

Machine mode of operation | Machine setup
4.5

Machine setup

The machine always requires a few preparations, regardless of
whether you are machining a workpiece manually or automatically.
In Machine mode of operation, you can call the following functions
through the Setup menu item:
Set axis value (define workpiece datum)
Machine reference (homing the axes)
Set protection zone
Set tool change point
Set C-axis values
Set machine dimensions
Display operating times
Configuration of wireless handwheel
Probing

Defining the workpiece datum

In the dialog, the distance between the machine datum and the
workpiece datum (also known as offset) is shown as XN and ZN. If
the workpiece datum is changed, the display values will be changed
accordingly.
The workpiece datum can also be set in the Z axis using
a touch probe. When setting the datum, the control
checks which type of tool is currently active. If you
select the Workpiece datum 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 datum:
Select Setup
Select Set axis value
Touch the workpiece datum (end face)
Define this point as the workpiece datum Z = 0
Alternative: Enter the distance between the
tool and the workpiece datum as Measuring pt.
coordinate Z
The control will calculate the workpiece datum Z
Alternative: Machine datum Z = workpiece
datum Z (offset = 0)
Alternative: This makes it possible to enter the
datum shift directly in ZN
Press the Save soft key
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
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