Assignment Independent Of Tool Type - Siemens SINUMERIK 840D sl Function Manual

W1: Tool offset
2.11 Assignment of tool length components to geometry axes
Table 2-4
Each value not equal to 0 and not equal to one of the six listed values is evaluated as value "17"
(for milling/special tools) or "18" (for turning/grinding tools)..
Note
Assignment of tool orientation components
The assignment of the tool orientation components is not influenced by SD42940
$SC_TOOL_LENGTH_CONST.
If necessary, the following setting data must be adapted:
● SD42954 $SC_TOOL_ORI_CONST_M
● SD42956 $SC_TOOL_ORI_CONST_T
See Chapter "Tool orientation for plane change (Page 173)".
2.11.3

Assignment independent of tool type

With the following setting data, the assignment of the tool length components (length, wear and
tool base dimension) to the geometry axes that is independent of the actual tool type
($TC_DP1) can be defined:
SD42950 $SC_TOOL_LENGTH_TYPE = <value>
<value>
0 (default value)
1
2
172
Milling / special tools ($TC_DP1 <> 400 ... 599)
SD42940
Length L1
= x17
= x18
= x19
= -x17
= -x18
= -x19
Assignment of the tool length components
In accordance with the specification in the system variable $TC_DP1[...].
A distinction is made between the following tool types:
● $TC_DP1[...] == 400 ... 599 ⇒ turning/grinding tools
● $TC_DP1[...] <> 400 ... 599 ⇒ milling/special tools
Always as for milling/special tools.
Always as for turning/grinding tools.
Assignment of tool length components to geometry axes
Length L2
Z
Y
X
Z
Y
X
Length L3
Y
X
Z
X
Z
Y
Function Manual, 06/2019, A5E47435126B AA
X
Z
Y
Y
X
Z
Tools