Siemens SINUMERIK 840D sl Function Manual page 241

coordinate system. At the same time as the definition of the body, the local coordinate system
can be transformed via the following system variables:
● Offset: $NP_OFF (Page 246)
● Direction vector of the rotation: $NP_DIR (Page 247)
● Angle of rotation: $NP_ANG (Page 249)
L
B
H
Parameter specifications in $NP_PARA (Page 245): Length, width, height
Type: "SPHERE"
A protection area element of the "SPHERE" type defines a sphere in the local coordinate
system of the protection area element. The mid-point of the sphere is at the origin of the local
coordinate system. At the same time as the definition of the body, the local coordinate system
can be transformed via the following system variables:
● Offset: $NP_OFF (Page 246)
● Direction vector of the rotation: $NP_DIR (Page 247)
● Angle of rotation: $NP_ANG (Page 249)
Note
Rotation
As the center point of the sphere and the starting point of the direction vector are in the
coordinate origin of the local coordinate system of the protection area element, a rotation using
the direction vector $NP_DIR (Page 247) and angle of rotation $NP_ANG (Page 249) has no
effect on the position of the sphere.
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Length in the X direction
Width in the Y direction
Height in the Z direction
K8: Geometric machine modeling - only 840D sl
6.2 Commissioning
241