Siemens SINUMERIK 840D sl Function Manual page 985

Angle of inclined wheel $TC_TPG8
This parameter specifies the angle of inclination of an inclined wheel in the current plane.
It is evaluated for GWPS.
Figure 18-3
Note
The tool lengths are not automatically compensated when the angle is altered.
The angle must be within the range -90° ≤ $TC_TPG8 < +90°.
On inclined axis machines the same angle must be specified for the inclined axis and the
inclined wheel.
Parameter number for radius calculation $TC_TPG9
This parameter specifies which offset values are used for the GWPS calculation and tool
monitoring of the minimum wheel radius ($TC_TPG3).
$TC_TPG9 = 3
$TC_TPG9 = 4
$TC_TPG9 = 5
$TC_TPG9 = 6
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
W4: Grinding-specific tool offset and monitoring functions - only 840D sl
Machine with inclined infeed axis
Length 1 (geometry + wear + base, depending on tool type)
Length 2 (geometry + wear + base, depending on tool type)
Length 3 (geometry + wear + base, depending on tool type)
Radius
18.2 Tool offset for grinding operations
985