04.97
Tool Offsets
6.3
Variants of the tool offset
The tool offset is composed of tool length offset and tool length wear.
D
L
a a a a a
a a a a a
a a a a a
a a a a a
D
V
D
D
. . . . .
Calculated tool length
D
L
. . . . .
Effective tool length
D
V
. . . .
Wear
a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a
D = D
L
+ D
V
Example:
The tool applied is e.g. 100 mm long (DL = 100 mm). Wear amounts to 1 mm
(DV = –1 mm).
Therefore, the active tool offset is
D = D
L
+ D
V
= (100) + (–1) = 99 mm.
6.3.1
Tool length offset
The tool length offset is the actual tool length from the tool zero point to the tool tip.
Abbre-
viation
Designation
Lower limit
Upper limit
Unit
P2
Tool length offset 1
– 9 999.999
+ 9 999.999
mm
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Siemens AG 1997 All Rights Reserved 6ZB5 440-0VU02
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WF 723 C (Programming Guide)