
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
< Example of a deceleration process > < Example of an acceleration process >
Feedrate Specified feedrate Feedrate Specified feedrate
F3 Type A F3
F2 F2
Type B
F1 F1
N1 N2 Time N1 N2 Time
To change the feedrate from F3 to F2, it is necessary to start reducing the feedrate at point 1.
LS2 Acceleration/deceleration after interpolation for cutting feed in the look-ahead feed-forward
control mode is:
0: Exponential acceleration/deceleration
1: Linear acceleration/deceleration (The function for linear acceleration/deceleration after
interpolation for cutting feed is required.)
1762
Exponential acceleration/deceleration time constant for cutting feed
in the look-ahead feed-forward control mode
[Data type] Word axis
[Unit of data] 1ms
[Valid data range] 0 to 4000
Set an exponential acceleration/deceleration time constant for cutting feed in the look-
ahead feed-forward control mode.
Feedrate after acceleration/
deceleration before
interpolation is applied
Feedrate after acceleration/
deceleration before
interpolation is applied
Point 1