4. DESCRIPTION OF PARAMETERS
B–63010EN/02
90
1763
Minimum speed in exponential acceleration/deceleration for cutting feed in the
look–ahead control mode
[Data type] Word axis
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 minimum speed (FL) in exponential acceleration/deceleration for
cutting feed in the look–ahead control mode.
1768
Time constant for linear acceleration/deceleration or bell–shaped acceleration/
deceleration during cutting feed in lock–ahead control mode.
[Data type] Word
[Unit of data] ms
[Valid data range] 8 to 512
This parameter sets a time constant for linear acceleration/deceleration for
cutting feed in the look–ahead control mode.
NOTE
1 For linear acceleration/deceleration, the function of linear
acceleration/deceleration after cutting feed interpolation is
required.
2 For bell–shaped acceleration/deceleration, the function of
bell–shaped acceleration/deceleration after cutting feed
interpolation is required.
1770 Parameter 1 (for look–ahead control) for setting an acceleration for linear ac-
celeration/deceleration before interpolation (maximum machining speed during
linear acceleration/deceleration before interpolation)
[Data type] 2–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 240000 6 to 100000
Inch machine 0.1 inch/min 6 to 96000 6 to 48000
This parameter is used to set an acceleration for linear acceleration/
deceleration before interpolation in the look–ahead control mode. In this
parameter, set the maximum machining speed during linear acceleration/
deceleration before interpolation. Set the time used to reach the
maximummachining speed in parameter No.1771.