
B-64120EN/01 4.DESCRIPTION OF PARAMETERS
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1768
Time constant of linear acceleration/deceleration or bell-shaped
acceleration/deceleration after interpolation in cutting feed in advanced
preview control, AI advanced preview control, or AI contour control mode
[Data type] Word
[Unit of data] msec
[Valid data range]
Advanced preview control, AI advanced preview control 0, 8 to 512
AI contour control 0, 4 to 256
Set the time constant to be used for linear or bell-shaped
acceleration/deceleration after interpolation in cutting feed in
advanced preview control, AI advanced preview control, or AI
contour control mode.
NOTE
For bell-shaped acceleration/deceleration, the
function of bell-shaped acceleration/deceleration
after cutting feed interpolation is required.
1769
Time constant of linear acceleration/deceleration or bell-shaped
acceleration/deceleration after interpolation in cutting feed for each axis in
advanced preview control, AI advanced preview control, or AI contour
control mode
[Data type] Word axis
[Unit of data] msec
[Valid data range]
Advanced preview control, AI advanced prevoew control 0, 8 to 512
AI contour control 0, 4 to 256
Set the time constant to be used for linear or bell-shaped
acceleration/deceleration after interpolation in cutting feed in
advanced preview control, AI advanced preview control, or AI
contour control mode for each axis. Which acceleration/deceleration
type, the linear or bell-shaped type, is to be used is specified by bit 3
(BS2) and bit 6 (LS2) of parameter No. 1602.
NOTE
1 If 0 is set in parameter No. 1769 for all axes, the
value set in parameter No. 1768 is used. For other
than special purposes, set a time constant in
parameter No. 1768, which is common to all axes.
2 If a different time constant is set in parameter No.
1769, a correct straight line or arc shape cannot be
obtained.
1770
Parameter 1 for setting the acceleration rate of linear
acceleration/deceleration before interpolation in advanced preview control,
AI advanced preview control, or AI contour control mode (maximum
machining speed during linear acceleration/deceleration before
interpolation)