
B-65270EN/05 APPENDIX H.DETAILS OF HIGH-SPEED AND HIGH-PRECISION ADJUSTMENT
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[Actual adjustment]
Create a program as indicated below for circular movement by
R10/F4000, and measure the path with SERVO GUIDE. G08P1
and G08P0 in the program are G codes for starting and ending
the advanced preview control mode in Series 16i and so on,
respectively. For a mode to be used, select the corresponding G
codes from Table H (a).
G91;
G08P1;
G17G02I-10.F4000.;
I-10.;
I-10.;
G08P0;
G04X3.;
M99;
Table H (a) Codes for starting and ending each mode
Start End
FS16i, 18i, 21i + Advanced preview control
G08P1 G08P0
FS16i + High-precision contour control
FS16i + AI high-precision contour control
FS16i + AI nano high-precision contour control
FS15i + Fine HPCC
G05P10000 G05P0
FS30i + AI contour control I
FS30i + AI contour control II
FS16i + AI contour control
FS16i + AI nano-contour control
FS15i + Fine HPCC
FS21i + AI advanced preview control
G05.1Q1 G05.1Q0
In Fig. H (a), the feed-forward coefficient is insufficient, resulting in a
radius reduction of about 5 µm. In addition, the velocity loop gain is
low, so that swells and quadrant protrusions are observed. By
adjusting the feed-forward coefficient as shown in Fig. H (b), the arc
radius reduction can be reduced to nearly 0.