12. COMPENSATION FUNCTION
Cutter compensation values include beam geometry compensation
values and beam wear compensation (Fig.12.4 (a)).
:Geometric compensation value
:Wear compensation value
Fig.12.4 (a) Geometric compensation and wear compensation
Cutter compensation values can be entered into CNC memory from the
CRT/MDI panel (see section III–11.4.1) or from a program.
A cutter compensation value is selected from the CNC memory when the
corresponding code is specified after address H or D in a program.
The value is used for beam length compensation, cutter compensation, or
the tool offset.
Table 12.4 (a) shows the valid input range of cutter compensation values.
Table 12.4 (a) The valid input range of cutter compensation value
Geometric compensation value Wear compensation value
system Metric input Inch input Metric input Inch input
IS–B "999.999 mm "99.9999inch "99.999 mm "9.9999 inch
The memory can hold 32, 64, 99, 200, 400, 499, or 999 tool compensation
Address D or H is used in the program. The address used depends on
which of the following functions is used: tool offset (see II–12.1), or cutter
compensation C (see II–12.3).
The range of the number that comes after the address (D or H) depens on
the number of cutter compensation values : 0 to 32, 0 to 64, 0 to 99, 0 to
200, 0 to 400, 0 to 499, or 0 to 999.
D Valid range of cutter
D Number of cutter
and the addresses to be