HEIDENHAIN TNC 620 User Manual page 526

14
Manual Operation and Setup
14.10 Datum setting with a 3-D touch probe
14.10 Datum setting with a 3-D touch
probe (option number 17)
Overview
The following soft-key functions are available for setting a datum on
an aligned workpiece:
Soft key Function
Datum setting on any axis with
Setting a corner as datum
Setting a circle center as datum
Center line as datum
Setting the center line as datum
Please ensure that the TNC refers to the probed
value on the active datum or the last defined datum
in MANUAL OPERATION mode with active datum
shift. The datum shift is included in the position
display.
Datum setting on any axis
Select the probing function: Press the POSITION
PROBING soft key
Move the touch probe to a position near the touch
point
Select the axis and probing direction, e.g. Probe in
direction Z-
Probe: Press the NC START key
Datum: Enter nominal coordinates, confirm with
the SET DATUM soft key
Further Information:
from the touch probe cycles to a datum table,
page 511
Terminate the probe function by pressing the END
soft key
HEIDENHAIN only warrants the function of the touch
probe cycles if HEIDENHAIN touch probes are used.
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Writing measured values
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015