15. COMPENSATION FUNCTION
If the center of the arc is identical with the start position or end point,
alarm (No. 038) is displayed, and the tool will stop at the end position of
the preceding block.
Alarm(No.038)is displayed and the tool
N5 G01 X100.0 ;
N6 G02 X100.0 I0 J0 ;
N7 G03 Y–100.0 J–100.0 ;
Tool center path
The offset direction is decided by G codes (G41 and G42) for cutter radius
and the sign of cutter compensation value as follows.
Sign of offset amount
G41 Left side offset Right side offset
G42 Right side offset Left side offset
The offset direction can be changed in the offset mode. If the offset
direction is changed in a block, a vector is generated at the intersection
of the tool center path of that block and the tool center path of a preceding
block. However, the change is not available in the start–up block and the
block following it.
The center of the arc is identiĆ
cal with the start position or
the end position
D Change in the offset
direction in the offset