Siemens sinumerik 840D sl Function Manual page 98

Detailed description
2.10 Orientation vectors
• The opening angle of the cone is programmed degrees with the identifier (nutation angle).
• A further option is to program an intermediate orientation that lies between the start and
Programming
ORIPLANE
ORICONCW
ORICONCCW
Programming of the direction vector is carried out using the identifiers A6, B6, C6 and is
specified as a (normalized) vector.
Note
Programming of an end orientation is not absolutely necessary. If no end orientation is
specified, a full outside cone with 360 degrees is interpolated.
The opening angle of the taper is programmed with NUT= <angle>, where the angle is
specified in degrees.
Note
An end orientation must be specified. A complete outside cone with 360 degrees cannot be
interpolated in this way. The sign of the opening angle defines whether the traversing angle
is to be greater or less than 180 degrees.
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The value range of this angle is limited to the interval between 0 degrees and 180
degrees. The values 0 degrees and 180 degrees must not be programmed. If an angle is
programmed outside the valid interval, an alarm is generated.
In the special case where NUT = 90 degrees, the orientation vector in the plane is
interpolated perpendicular to the direction vector (large circle interpolation).
The sign of the programmed opening angle specifies whether the traversing angle is to
be greater or less than 180 degrees.
In order to define the cone, the direction vector or its opening angle must be
programmed. Both may not be specified at the same time.
end orientation.
orientation interpolation in a plane: Interpolation in a plane
(large circle interpolation)
orientation interpolation on a cone clockwise: Interpolation
on the peripheral surface of a cone in the clockwise
direction
orientation interpolation on a cone counter clockwise:
Interpolation on the peripheral surface of a cone in the
counterclockwise direction.
Special functions: 3-Axis to 5-Axis Transformation (F2)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0