Mitsubishi Electric M700V Series Programming Manual page 529

14. Coordinates System Setting Functions
(6) The tool length compensation amount for the axis involved is canceled after the second, third
and fourth reference (zero) position returns.
(7) With second, third and fourth reference (zero) position returns in the machine lock status,
control from the intermediate point to the reference (zero) position will be ignored. When the
designated axis reaches as far as the intermediate point, the next block will be executed.
(8) With second, third and fourth reference (zero) position returns in the mirror image mode, mirror
image will be valid from the start point to the intermediate point and the tool will move in the
opposite direction to that of the command. However, mirror image is ignored from the
intermediate point to the reference (zero) position and the tool moves to the reference (zero)
position.
X-axis mirror
image
14.8 2nd, 3rd and 4th Reference (Zero) Position Return; G30
-X
G30P3Xx Yy
1
517
R#3
3rd reference (zero) position
-Y
;
1
No mirror image