
TITLE
B-63173EN-1/02
EDIT
DATE DESIG. DESCRIPTION
ower
ate i-
Look-ahead feed-forward control
Connection manual (function)
DRAW.NO. CUST.
SHEET
01
990624 New design
7.1.7
Look-ahead feed-forward control
General 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 reduced.
This function becomes effective when look-ahead feed-forward control mode is
entered by G08P1 command.
・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 another section.
Signal
look-ahead
feed-forward control
mode signal
G08MD<F066#0>
[Classification] Output signal
[Function] Informs it is in the look-ahead feed-forward control mode
[Output condition] The signal is "1" in the following case:
・It is in the look-ahead feed-forward control mode.
The signal is "0" in the following case:
・It is not in the look-ahead feed-forward control mode.
Signal address
#7 #6 #5 #4 #3 #2 #1 #0
F066 G08MD