Activating The Modification Of The Offset Data For Rotatable Tools (Cutmod, Cutmodk) - Siemens SINUMERIK 840D sl Function Manual

System variable
Note
$NT_ROT_AX_NAME
This system variable refers to a maximum of three axes used for setting the orientation. It
contains the names of the chain elements ($NK_NAME) that define the machine axes (rotary
axes) that must perform the orientation movements resulting from a kinematic transformation.
The order in which the maximum three rotary axes are contained in this system variable is
irrelevant for the machine kinematics because this is derived from the structure of the kinematic
chains. However, as it defines the order in which other variables access the rotary axes, the
order of the orientation axes in $NT_ROT_AX_NAME must match the kinematic description.
Note
Status information
The status information that shows, for example, that an orientation cannot be achieved or can
only be achieved when relevant axis limits are violated, does not trigger an NC alarm. It is the
responsibility of the user to react suitably to the specified conditions.
2.9.5.2

Activating the modification of the offset data for rotatable tools (CUTMOD, CUTMODK)

The modification of the offset data for rotatable tools is activated in the NC program via the
CUTMOD (in combination with orientable tool carriers) or CUTMODK language command (for
orientation transformations that were defined by means of kinematic chains).
Note
As the orientable tool carriers and orientation transformations that were defined by means of
kinematic chains cannot be active at the same time, there are no conflicts between the two
variants.
Syntax
CUTMOD = <Value>
or
CUTMODK = <Command>
Tools
Function Manual, 06/2019, A5E47435126B AA
Meaning
Of the error numbers that indicate a violation of the axis limits, several can occur
simultaneously. When an axis limit is violated, an attempt is made to reach a position
within the permissible axis limits by adding or subtracting multiples of 360°. If this is
not possible, it is not clearly defined whether the lower or the upper axis limit has
been violated.
If there is no solution for the requested orientation ($P_ORI_SOL = 0), the status of
the orientation axes in the transformation is "0".
2.9 Modification of the offset data for rotatable tools
sition). This information is also contained in the
$P_ORI_SOL system variable.
W1: Tool offset
161