Siemens SINUMERIK 840D sl Function Manual page 1947

Stepless variation of the tool orientation
The toolholder with orientation capability also enables the tool orientation to be varied
steplessly, in addition to providing further offsets or linear expansion fluctuations with the aid
of offset vectors l
For more information, see:
References:
/FB1/ Function Manual Basic Functions; Tool Offset (W1),
Section: Toolholder with orientation capability
Minor operator compensations
Minor compensations, however, must also be modified during the normal production mode.
The reasons for this are e.g.:
• Tool wear
• Clamping errors
• Temperature sensitivity of the machine:
These compensations are defined as follows:
Definition
Wear
Total offsets fine
Sum offsets coarse or setup offsets
In particular, compensations, which affect the tool length calculation, should be entered in
the coordinates used for measurement.
These workpiece-specific compensations can be achieved more simply using the G-code
group 56 with the three values TOWSTD, TOWMCS and TOWWCS and the setting data:
SD42935 $SC_WEAR_TRANSFORM (transformation of tool components)
Basic logic functions: Tool Offset (W1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
- l .
1 3
2.9 Sum offsets and setup offsets
Wear components
$TC_DP12 - $TC_DP14,
$TC_SCPx3 - $TC_SCPx5,
$TC_ECPx3 - $TC_ECPx5
Detailed Description
159