
Tool Control Functions
Chapter 20
20-19
Value for the
L Parameter
Parameter Definition
P R,X,Y,Z
L12
Geometrytable
OffsetNumber Toolradiusgeometryvalue
L13
Wear table
OffsetNumber Toolradiuswearvalue
Example 20.4
Replacing the Tool Offset Tables Through Programming (G90)
Assume a Z axis geometry value (tool length) of 2 for offset number 4.
N00001 G90;
N00002 G10 L10 P4 Z3; Offset number 4 has a new value of 3 for
tool length.
N00003 G10 L10 P4 Z1;
Offset number 4 has a new value of 1 for
tool length.
Example 20.5
Modifying the Tool Offset Tables Through Programming (G91)
Assume a Z axis geometry value (tool length) of 2 for offset number 5.
N00001 G91;
N00002 G10 L11 P5 Z1; Offset number 5 has a new value of 3 for
tool length wear.
N00003 G10 L11 P5 Z3;
Offset number 5 has a new value of 6 for
tool length wear
.
The automatic tool management feature is used to monitor the life of a
tool, determine when the tool should be replaced, and provide a
replacement tool when that tool is requested in a program.
This is done by assigning tools to selected groups. Then instead of calling
a specific tool in a program the programmer calls a tool group. The control
then selects the first tool assigned to that group. If that tool has exceeded
its entered tool life then a replacement tool is selected from the next tool
number assigned to that group. If that tool has exceeded its expected tool
life then t he next tool in the group is selected. T his continues until no
more tools a re available in that tool group.
The correct tool length a nd tool radius offsets are assigned independently
for each tool in the group.
20.5
Automatic Tool Life
Management
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