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

PROGRAMMING
B–62764EN/01
15. COMPENSATION FUNCTION
351
This scaling is not applicable to cutter compensation values, tool length
offset values, and tool offset values (Fig. 15.9 (e) ).
Cutter compensation values are not scaled.
Programmed figure
Scaled figure
Fig15.9(e) Scaling during cutter compensation
Scaling is not applicable to the Z–axis movement in case of the following
canned cycle.
Cut–in value Q and retraction value d of peck drilling cycle (G83, G73).
Fine boring cycle (G76)
Shift value Q of X and Y axes in back boring cycle (G87).
In manual operation, the travel distance cannot be increased or decreased
using the scaling function.
WARNING
1 If a parameter setting value is employed as a scaling magnification without specifying P, the
setting value at G51 command time is employed as the scaling magnification, and a!change
of this value, if any, is not effective.
2 Before specifying the G code for reference position return (G27, G28, G29, G30) or!coordinate
system setting (G92), cancel the scaling mode.
3 If scaling results are rounded by counting fractions of 5 and over as a unit and disregarding
the rest, the move amount may become zero. In this case, the block is!regarded as a no
movement block, and therefore, it may affect the tool movement by!cutter compensation C. See
the description of blocks that do not move the tool at II–15.6.3.
NOTE
1 The position display represents the coordinate value after scaling.
2 When a mirror image was applied to one axis of the specified plane, the following!results:
(1)Circular command Direction of rotation is reversed.
(2)Cutter compensation C Offset direction is reversed.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(3)Coordinate system rotation Rotation angle is reversed.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(4)Cutter compensation B Offset direction is reversed. (Including G39). . . . . . . . . . . . . . . . . . .
D Invalid scaling

Leave a Reply

Your email address will not be published. Required fields are marked *