HEIDENHAIN iTNC 530 (34049x-08) ISO programming - Manual (Page 350)

350 Programming: Special functions
1
1
.2 Dynamic Collision Monit
o
ri
ng (sof
tw
ar
e option)
Keep these constraints in mind:
 DCM helps to reduce the danger of collision. However,
the TNC cannot consider all possible constellations in
operation.
 Collisions of defined machine components and the tool
with the workpiece are not detected by the TNC.
 DCM can only protect those machine components from
collision that your machine tool builder has correctly
defined with regard to dimensions and position in the
machine coordinate system.
 The TNC can monitor the tool only if a positive tool
radius
has been defined in the tool table. The TNC
cannot monitor tools with a radius of 0 (as is often used
in drilling tools) and therefore issues an appropriate error
message.
 The TNC can only monitor tools for which you have
defined positive tool lengths.
 When a touch probe cycle starts, the TNC no longer
monitors the stylus length and ball-tip diameter so that
you can also probe in collision objects.
 For certain tools (such as face milling cutters), the
diameter that would cause a collision can be greater
than the dimensions defined in the tool-compensation
data.
 The handwheel superimpositioning function (M118 and
global program settings) in combination with collision
monitoring is only possible in stopped condition
(blinking control-in-operation symbol). To be able to use
M118 without limitations, you have to deselect DCM
either by soft key in the Collision Monitoring (DCM)
menu, or activate a kinematics model without collision
monitored objects (CMOs).
 With the rigid-tapping cycles, DCM works only if the
exact interpolation of the tool axis with the spindle is
activated through MP7160.