
B-65150E/04 4. SERVO FUNCTION DETAILS
− 143 −
Because of this configuration, the function can improve the feed-
forward coefficient up to about 1 without impact and also reduce
figure error.
<3> By specifying the G codes listed below, the modes related to
high-speed high-precision machining such as advanced preview
control can be turned on/off. In each mode, advanced preview
feed-forward is enabled.
G code
Mode ON Mode OFF
Mode CNC
G08P1 G08P0
Advanced preview control
mode
Series 16, 18, 21i
Acceleration/deceleration
mode before look-ahead
interpolation
Series 15-B, 15i
AI nano-contour control mode
Series 16i
AI contour control mode
Series 16i, 18i
G05.1Q1 G05.1Q0
AI advanced preview control
mode
Series 21i
G05P10000 G05P0
HPCC mode
(⇒ Subsec.4.6.3)
Series 15-B, 16, 18
(Example)
G08P1; Advanced preview control mode on
c
c Advanced preview feed-forward enabled
c
G08P0; Advanced preview control mode off
NOTE
For the Series 15-A and 15-B, set bit 2 of parameter
No. 1811 to 1, in addition to making the above setting.
(This parameter need not be set with Series 15i, 16,
and 18.)