Mirror Wear Lengths (Sd42920 $Sc_Wear_Sign_Cutpos) - Siemens SINUMERIK 840D sl Function Manual

W1: Tool offset
18.10 Special handling of tool compensations
18.10.3

Mirror wear lengths (SD42920 $SC_WEAR_SIGN_CUTPOS)

Activation
Wear length mirroring is activated by:
SD42920 $SC_WEAR_SIGN_CUTPOS <> 0 (TRUE) (Sign of wear for tools with cutting edge
systems)
Function
Length of cutting edge
1
2
3
4
5
6
7
8
9
In the case of tool types without a relevant cutting edge position, the wear length is not mirrored.
Note
The mirroring (sign inversion) in one or more components can cancel itself through a
simultaneous activation of the functions:
Tool length-mirroring (SD42900 <> 0)
And:
Tool length-mirroring (SD42920 <> 0)
SD42930 $SC_WEAR_SIGN
Setting data not equal to zero:
Inverts the sign of all wear dimensions. This affects both the tool length and other variables
such as tool radius, rounding radius, etc.
Entering a positive wear dimension makes the tool "shorter" and "thinner".
Activation of modified setting data
When the setting data described above are modified, the tool components are not reevaluated
until the next time a tool edge is selected. If a tool is already active and the data of this tool
are to be reevaluated, the tool must be selected again.
1490
Length 1
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Inverted
Inverted
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Inverted
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Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Length 2
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Inverted
Inverted
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Inverted
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Basic Functions