
4. DESCRIPTION OF PARAMETERS
B–63010EN/02
92
Feedrate
Linear acceleration/decel-
eration
Time
ta: Depends on linear accelera-
tion.
tb: Bell–shaped time constant
tc: Bell–shaped acceleration/de-
celeration time
tc=ta+tb
tb tb tb tb
ta ta
tc tc
Bell–shaped acceleration/
deceleration
NOTE
The option for bell–shaped acceleration/deceleration before
look–ahead interpolation is required. This parameter is
enabled only in AI contour control mode.
1775 (Must not be used)*(Always set 0.)
1776 (Must not be used)*(Always set 0.)
1777
Minimum speed for the automatic corner deceleration function (look–ahead control)
[Data type] Word
[Unit of data, valid range]
Valid data range
ncremen
sys
em
n
o
a
a
IS-A, IS-B IS-C
Millimeter machine 1 mm/min 6 to 15000 6 to 12000
Inch machine 0.1 inch/min 6 to 6000 6 to 4800
Rotation axis 1 deg/min 6 to 15000 6 to 12000
Set a speed at which the number of buffered pulses in deceleration is
assumed to be 0 when linear acceleration/deceleration before
interpolation is used.
1778
Minimum speed of for the automtic corner deceleration function (for linear accel-
eration/deceleration before interpolation)
[Data type] Word
[Unit of data, valid range]
Valid data range
y
IS-A, IS-B IS-C
Millimeter machine 1 mm/min 6 to 15000 6 to 12000
Inch machine 0.1 inch/min 6 to 6000 6 to 4800
Rotation axis 1 deg/min 6 to 15000 6 to 12000
Set a speed at which the number of buffered pulses in deceleration is
assumed to be 0 when linear acceleration/deceleration before
interpolation is used.