HEIDENHAIN TNC 620 User Manual page 499

Manually saving the datums in the preset table
In order to save datums in the preset table, proceed as follows:
Select the Manual operation mode
Move the tool slowly until it touches (scratches)
the workpiece surface, or position the measuring
dial correspondingly
Display the preset table: The TNC opens the
preset table and sets the cursor to the active table
row
Select functions for entering the presets: The TNC
displays the available possibilities for entry in the
soft-key row. Description of input options
Select the row in the preset table that you want to
change (the row number is the preset number)
If needed, select the column (axis) in the preset
table that you want to change
Use the soft keys to select one of the available
entry possibilities
Soft key Function
Directly transfer the actual position of the tool (the
measuring dial) as the new datum: This function
only saves the preset in the axis in which the
cursor is currently hovering.
Assign any value to the actual position of the tool
(the measuring dial): This function only saves the
preset in the axis in which the cursor is currently
hovering. Enter the desired value in the pop-up
window
Incrementally shift a datum already stored in the
table: This function only saves the preset in the
axis in which the cursor is currently hovering.
Enter the desired corrective value with the correct
sign in the pop-up window. If inch display is
active: Enter the value in inches, and the TNC will
internally convert the entered values to mm
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015
Datum management with the preset table 14.5
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499