DATE DESIG. DESCRIPTION
FANUC Power Mate i-D/H
Look-ahead feed-forward control
990624 New design
Look-ahead This function is designed for high-speed precise axis motion. With this function, the
delay due to acceleration/deceleration and the delay in the servo system which
increase as the feedrate becomes higher can be suppressed.
The tool can then follow specified values accurately and the errors of tool path can be
This function becomes effective when look-ahead feed-forward control mode is
entered by G08P1 command.
For details, refer to the relevant manual published by the machine tool builder.
P1: Turn on look-ahead feed-forward control mode
P0: Turn off look-ahead feed-forward control mode
• Available function In look-ahead feed-forward control mode, the "linear acceleration/deceleration
before interpolation for cutting feed" becomes automatically effective. For details
on the function, see CONNECTION MANUAL
• Reset Look-ahead feed-forward control mode is canceled by reset.
• G08 command Be sure to specify G08 code in an independent block.