FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

B–62764EN/01
15. COMPENSATION FUNCTION
PROGRAMMING
323
A function has been added which performs positioning by automatically
canceling a cutter compensation vector when G53 is specified in cutter
compensation C mode, then automatically restoring that cutter
compensation vector with the execution of the next move command.
The cutter compensation vector restoration mode is of FS16 type when
CCN (bit 2 of parameter No. 5003) is set to 0; it is of FS15 type when CCN
is set to 1.
When G28, G30, or G30.1 is specified in cutter compensation C mode,
automatic reference position return is performed by automatically
canceling a cutter compensation vector, that cutter compensation vector
automatically being restored with the execution of the next move
command. In this case, the timing and format of cutter compensation
vector cancellation/restoration, performed when CCN (bit 2 of parameter
No. 5003) is set to 1, are changed to FS15 type.
When CCN (bit 2 of parameter No. 5003) is set to 0, the conventional
specification remains applicable.
When G29 is specified in cutter compensation C mode, the cutter
compensation vector is automatically canceled/restored. In this case, the
timing and format of cutter compensation vector cancellation/restoration,
performed when CCN (bit 2 of parameter No. 5003) is set to 1, are
changed to FS15 type.
When CCN (bit 2 of parameter No. 5003) is set to 0, the conventional
specification remains applicable.
When G53 is specified in cutter compensation C mode, the previous block
generates a vector that is perpendicular to the move direction and which
has the same magnitude as the offset value. Then, the offset vector is
canceled when movement to a specified position is performed in the
machine coordinate system. In the next block, offset mode is
automatically resumed.
Note that cutter compensation vector restoration is started when CCN (bit
2 of parameter No. 5003) is set to 0; when CCN is set to 1, an intersection
vector is generated (FS15 type).
15.6.8
G53,G28,G30,G30.1
and G29 Commands in
Cutter Compensation C
Mode
Explanations
D G53 command in cutter
compensation C mode

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