HEIDENHAIN TNC 640 User Manual page 506

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Generally valid constraints:
The Dynamic Collision Monitoring (DCM) function
helps to reduce the danger of collision. However, the
control cannot consider all possible constellations in
operation.
The control can only protect those machine
components from collision that your machine
tool builder has defined correctly with regard to
dimensions, orientation and position.
The control can only monitor tools for which you
have defined
lengths
When a touch probe cycle starts, the control no
longer monitors the stylus length and ball-tip
diameter so that you can also probe collision objects.
For certain tools (such as face milling cutters), the
radius that would cause a collision can be greater
than the value defined in the tool table.
DL and DR tool oversizes from the tool table are
taken into account by the control. Tool oversizes from
the TOOL CALL block are not accounted for.
Graphic display of the collision objects
Activate the graphic display of the collision objects as follows:
Select the desired operating mode
Press the Screen layout key
Select the desired screen layout
You can also use the soft keys to change the display of the collision
objects.
Modify the graphic display of the collision objects in the machine
operating modes as follows:
Shift the soft-key row if necessary
Press the KINEMATICS soft key
Modify the graphic display of the collision objects
using the following functions
Modify the graphic display of the collision objects in the Test Run
operating mode as follows:
Press the FURTHER VIEW OPTIONS soft key
Modify the graphic display of the collision objects
using the following functions
506
positive tool radii and
in the tool table.
Special Functions | Dynamic Collision Monitoring (option 40)
positive tool
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017