HEIDENHAIN TNC 640 (34059x-04) - Manual (Page 519)

Datum setting without a 3-D touch probe 15.5
15
TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 3/2014
519
Function Soft key
Directly enter the new datum without
calculation of the kinematics (axis-specific).
Only use this function if your machine has a
rotary table, and you want to set the datum
to the center of the rotary table by entering
0. This function only saves the datum in the
axis which is currently highlighted. Enter the
desired value 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
Select the BASIC TRANSFORMATION/AXIS
OFFSET view. The BASIC TRANSFORMATION
view shows the X, Y and Z columns.
Depending on the machine, the SPA, SPB and
SPC columns are displayed additionally. Here,
the TNC saves the basic rotation (for the Z
tool axis, the TNC uses the SPC column). The
OFFSET view shows the offset values for the
preset
Write the currently active datum to a
selectable line in the table: This function saves
the datum in all axes, and then activates the
appropriate row in the table automatically. If
inch display is active: Enter the value in inches,
and the TNC will internally convert the entered
values to mm