Functionality Of The Individual Wear Values - Siemens SINUMERIK 840D sl Function Manual

Coordinate systems for offsets in tool length
G commands TOWMCS, TOWWCS, TOWBCS, TOWTCS and TOWKCS can be used, e.g. to measure
the wear tool length component in five different coordinate systems.
1. Machine coordinate system
1. Basic coordinate system
1. Workpiece coordinate system
1. Tool coordinate system of kinematic transformation
1. Tool coordinate system
The calculated tool length or a tool length component can be represented and read out using
the predefined GETTCOR (Page 211) function in one of these coordinate systems.
Figure 2-50
2.15.5.2

Functionality of the individual wear values

TOWSTD
Basic setting (default behavior):
● The wear values are added to the other tool length components.
The resulting total tool length is then used in further calculations.
In the case of an active tool carrier with orientation capability:
● The wear values are subjected to the appropriate rotation.
TOWMCS
Wear data in the MCS (machine coordinate system):
Tools
Function Manual, 06/2019, A5E47435126B AA
Coordinate system for the evaluation of tool lengths
W1: Tool offset
2.15 Sum and setup offsets
MCS
BCS
WCS
KCS
TCS
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