
B–64113EN–1/01
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
467
1622
Time constant of exponential acceleration/deceleration, linear acceleration/
deceleration after interpolation or bell–shaped acceleration/deceleration
after interpolation, in cutting feed for each axis
[Data type] Word axis
[Unit of data] ms
[Valid data range] 0 to 4000 (For exponential acceleration/deceleration)
0 to 512 (For linear acceleration/deceleration after interpolation or
bell–shaped acceleration/deceleration after interpolation)
Set the time constant used for exponential acceleration/deceleration,
linear acceleration/deceleration after interpolation or bell–shaped
acceleration/deceleration after interpolation in cutting feed for each axis.
Except for special applications, the same time constant must be set for all
axes in this parameter. If the time constants set for the axes differ from
each other, proper straight lines and arcs cannot be obtained.
Cutting
feedrate
T
T : Total time. It is constant irrespective of
feedrate. (Time constant is constant).
The curve corresponds to that T1 = T/2 and T2
= T/2 set in parameter No. 1620 and 1621.
No linear part exists.
Time
Speed
<Bell–shaped acceleration/deceleration after cutting feed interpolation>
1624
Time constant of exponential acceleration/deceleration, bell–shaped
acceleration/deceleration after interpolation or linear acceleration/
deceleration after interpolation, in jog feed for each axis.
[Data type] Word axis
[Unit of data] ms
[Valid data range] 0 to 4000 (For exponential acceleration/deceleration)
0 to 512 (For linear acceleration/deceleration after interpolation or
bell–shaped acceleration/deceleration after interpolation)
Set the time constant used for exponential acceleration/deceleration,
bell–shaped acceleration/deceleration after interpolation or linear
acceleration/deceleration after interpolation in jog feed for each axis.
The type of acceleration/deceleration is determinded depending on the
setting in parameter No. 1610.