
7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL B-63783EN-1/01
- 692 -
1622 Cutting feed acceleration/deceleration time constant for each axis
[Input type] Parameter input
[Data type] Integeraxis
[Unit of data] msec
[Valid data range] 0 - 4000
For each axis, set the time constant used for acceleration/deceleration during
cutting feed.
The time constant is fixed irrespective of the feedrate (fixed time constant method).
Feedrate
FeedrateFeedrate
Feedrate
Time
TimeTime
Time
Time constant
Time constantTime constant
Time constant
Linear acceleration/deceleration afte
cutting feed interpolation
Bell-shaped acceleration/deceleration after
cutting feed interpolation
Feedrate
FeedrateFeedrate
Feedrate
Time
TimeTime
Time
Time constant
Time constantTime constant
Time constant
NOTE
However, note that the valid range is 0 to 2000 when the bell-
shaped acceleration/deceleration option is provided.
Except in special cases, this time constant should be set to the
same value for all axes. When different values are specified,
the desired straight and curved lines will not be obtained.
1623 FL feedrate for cutting feed acceleration/deceleration after interpolation
along each axis
[Input type] Parameter input
[Data type] Realaxis
[Unit of data] mm/min, inch/min, degree/min (machine unit)
[Minimum unit of data] Depend on the increment system of the applied axis
[Valid data range] Refer to the standard parameter setting table (C)
(When the increment system is IS-B, 0.0 - +240000.0)
NOTE
Be sure to always set 0 in this parameter for all axes, except for a
special application. Otherwise, correct linear or circular figures
cannot be obtained.