Detailed Description
2.9 Sum offsets and setup offsets
Basic logic functions: Tool Offset (W1)
164 Function Manual, 11/2006, 6FC5397-0BP10-2BA0
TOWTCS
Wear values in TCS (tool coordinate system):
• If a toolholder with orientation capability is active, the tool vector is calculated as for
TOWMCS, without taking the wear into account.
• The wear data are interpreted in the tool coordinate system.
The wear vector in the TCS (Tool Coordinate System) is converted to the machine
coordinate system by way of the tool coordinate system of the kinematic transformation
(KCS) and added to the tool vector.
TOWKCS
The wear value specifications for the kinematic transformation are interpreted in the
associated TCS (Tool Coordinate System).
The wear vector is converted to the machine coordinate system by way of the tool coordinate
system of the kinematic transformation and added to the tool vector.
G code change when a tool is active
Changing the G code in the group TOWSTD, TOWMCS, TOWWCS, TOWBCS, TOWTCS, and
TOWKCS does not affect an already active tool, and does not become effective until the next
tool is selected.
A new G code of this group will also come into effect if it is programmed in the same block, in
which a tool is selected.
Evaluation of individual wear components
Evaluation of individual wear components (assignment to geometry axes, sign evaluation) is
influenced by:
• The active plane
• The adapter transformation
• The five setting data shown in the table below:
Setting Data Wear components
SD42910 $SC_MIRROW_TOOL_WEAR
TOWSTD TOWMCS TOWWCS
SD42920 $SC_WEAR_SIGN_CUTPOS X X —
SD42930 $SC_WEAR_SIGN X — —
SD42940 $SC_TOOL_LENGTH_CONST X X X
SD42950 $SC_TOOL_LENGTH_TYPE X X X
Note
Wear components, which are subjected to an active rotation by an adapter transformation or
a toolholder with orientation capability, are referred to as nontransformed wear components.
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