Special Handling Of Tool Offsets - Siemens Sinumerik 840D sl Programming Manual

Tool offsets

7.3 Special handling of tool offsets

7.3 Special handling of tool offsets
Function
The evaluation of the sign for tool length and wear can be controlled using setting data
SD42900 to SD42960.
The same applies to the behavior of the wear components when mirroring geometry axes or
changing the machining plane, and also to temperature compensation in tool direction.
Wear values:
If reference is made to wear values in the following, then this should be understood as the
sum of the actual wear values ($TC_DP12 to $TC_DP20) and the sum offsets with the wear
values ($SCPX3 to $SCPX11) and setting-up values ($ECPX3 to $ECPX11).
More information on summed offsets, refer to:
References:
Function Manual, Tool Management
Setting data
Setting Data
SD42900 $SC_MIRROR_TOOL_LENGTH
SD42910 $SC_MIRROR_TOOL_WEAR
SD42920 $SC_WEAR_SIGN_CUTPOS
SD42930 $SC_WEAR_SIGN
SD42935 $SC_WEAR_TRANSFORM
SD42940 $SC_TOOL_LENGTH_CONST
SD42950 $SC_TOOL_LENGTH_TYPE
SD42960 $SC_TOOL_TEMP_COMP
References
Function Manual Basic Functions; Tool Offset (W1)
408
Significance
Mirroring of tool-length components and
components of the tool base dimension.
Mirroring of wear values of the tool-length
components.
Evaluating the sign of the wear components as
a function of the tool nose position.
Inverts the sign of wear dimensions.
Transformation of wear values.
Assignment of tool length components to
geometry axes.
Assignment of the tool length components
independent of tool type.
Temperature compensation value in tool
direction. Also operative when tool orientation is
programmed.
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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