HEIDENHAIN TNC 640, User Manual, Page: 525 / 948

Special Functions | Global Program Settings (option 44)
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
525
Control display
Both the additive offset of the
Global Program Settings
function
and the offsets from
Preset management
affect the actual
position display.
The general status display shows the following icons:
For offsets from
Preset management
, no icon is
displayed!
Additive offsets active (default icon of the
Global
Program Settings
function)
The additive offset values are displayed on the
GS
tab of the
additional status display. Offsets from
Preset management
are
exclusively displayed in
Preset management
!
Application example
Increase traverse path:
Machine with AC fork head
Eccentric tool holder (outside the rotation center of the C axis)
presetToAlignAxis
(no. 300203) machine parameter for the C
axis is set to
FALSE
Traverse path is increased by means of a 180° rotation of the C
axis
Rotation is achieved by means of the
Additive offset (M-CS)
option
Open the
Global Program Settings
function
Activate the
Additive offset (M-CS)
option with C = 180°
If necessary, add an
L C+0
positioning movement to the NC
program
Reselect the NC program
The control considers the 180° rotation for all C axis positioning
movements.
The control takes the modified tool position into account.
The position of the C axis does not affect the preset position.
The preset remains unchanged!