Additive Offsets; Selecting Additive Offsets (Dl) - Siemens SINUMERIK 840D sl Programming Manual

Tool parameter number
(DP)
$TC_DP5
Geometry
$TC_DP6
Geometry
$TC_DP10
$TC_DP11
Wear
$TC_DP12
$TC_DP13
$TC_DP14
$TC_DP15
Wear
$TC_DP19
$TC_DP20
Tool base dimension/
adapter
$TC_DP21
$TC_DP22
$TC_DP23
Basic value and wear value
The resultant values are each a total of the basic value and wear value (e.g. $TC_DP6 +
$TC_DP15 for the radius). The basic measurement ($TC_DP21 – $TC_DP23) is also added to
the tool length of the first cutting edge. All the other parameters, which may also impact on
effective tool length for a standard tool, also affect this tool length (adapter, orientatable
toolholder, setting data).
Limit angles 1 and 2
Limit angles 1 and 2 each refer to the vector of the cutting edge center point to the cutting edge
reference point and are counted counterclockwise.
3.13.2

Additive offsets

3.13.2.1

Selecting additive offsets (DL)

Additive offsets can be considered as process offsets that can be programmed in the
machining. They refer to the geometrical data of a cutting edge and are therefore a component
of tool cutting data.
Data of an additive offset is addressed using a DL number (DL: Locationdependent; offsets
regarding the location of use) and entered via the user interface.
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Meaning
Length 3
Radius
Radius
Limit angle
Minimum limit angle
Maximum limit angle
Length and radius compensation
Wear length 1
Wear length 2
Wear length 3
Wear radius
Limit angle
Wear min. limit angle
Wear max. limit angle
Length offsets
Length 1
Length 2
Length 3
Work preparation
3.13 Tool offsets
Cutting Dn Remark
741