Online Tool Radius Compensation - Siemens SINUMERIK 840D sl Function Manual

Program code
M30
4.3

Online tool radius compensation

Function
When the longitudinal axis of the tool and the contour are perpendicular to each other, the offset
can be applied as a length compensation to one of the three geometry axes (online tool length
compensation).
If this condition is not fulfilled, then the offset quantity can be entered as a real radius
compensation value (online tool radius compensation).
Enable
Online tool radius compensation must be enabled using machine data:
MD20254 $MC_ONLINE_CUTCOM_ENABLE = 1
Activation / deactivation
An online tool radius compensation is activated and deactivated using G commands FTOCON
and FTOCOF (Page 293) (in the same way as an online tool length compensation).
Parameter assignment
Online tool offset is parameterized using PUTFTOCF (Page 291) or PUTFTOC (Page 292).
The parameter <ToolPar> (wear parameter in which the correction value is to be calculated)
must be set for the online tool radius compensation as follows:
<ToolPar> = 4
Tools
Function Manual, 06/2019, A5E47435126B AA
V-0.05 G1 F0.01 G91
W4: Grinding-specific tool offset and tool monitoring
4.3 Online tool radius compensation
Comment
; infeed motion of the V axis for dressing
297