Siemens SINUMERIK 840D sl Function Manual page 1013

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, 03/2009, 6FC5397-1BP10-4BA0
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
Grinding-Specific Tool Offset and Tool Monitoring (W4)
Tool offset for grinding operations
1013