Siemens SINUMERIK 840C - Manual (Page 1093)

12 Functional Descriptions 07.97
12.32.5 Machine coordinate systems
Offset vector 4th machine coordinate system
X coordinate:
MD 343
Y coordinate: MD 344
Z coordinate: MD 345
Mirroring vector 4th machine coordinate system
(X, Y, Z):
gen. MD 5028, 0-2
12.32.6 Adaptation of the protection zone to the active tool
The size of protection zone can automatically be adapted to the active tool of an NC channel.
If the tool tip P protrudes out of the protection zone defined in the machine data the protection
zone is adapted in accordance with the tool offset data. If is adapted in such a way that the
protection zone is enlarged on the basis of the basic dimensions defined in the machine data
such that tool nose P is on the boundary of the protection zone.
With the general machine data MD 300* ”TO allowance” it is possible to enlarge the protection
zone till further. The tool offset allowance is calculated into all the coordinates in which the tool
offset value is not equal.
Adapting the protection zone
to the active tool with tool offset allowance
Y
X P1
TO allowance MD 300
TO allowance MD 300
P
F
Adapted protection zone
Basic dimension
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SINUMERIK 840C (IA)