
7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL B-63783EN-1/01
- 658 -
Parameter
See also the explanation of those parameters for look-ahead
acceleration/deceleration before interpolation because this function
uses it.
1483 Lower feedrate limit for the deceleration function based on the acceleration
of fine HPCC
[Input type] Parameter input
[Data type] Real
[Unit of data] mm/min, inch/min, degree/min (machine unit)
[Minimum unit of data] Depend on the increment system of the reference axis
[Valid data range] Refer to the standard parameter setting table (C)
(When the increment system is IS-B, 0.0 - +240000.0)
The deceleration function based on the acceleration of fine HPCC
automatically calculates the optimum feedrate according to the
geometry.
Depending on the geometry, the calculated feedrate may become very
low.
If this occurs, to prevent the feedrate from becoming too low,
deceleration to a feedrate below that specified for this parameter can be
suppressed.
If, however, the override by the deceleration function based on the
cutting load is enabled, the feedrate may become lower than the lower
feedrate limit.
The lower feedrate limit in deceleration based on the acceleration during
circular interpolation in a mode other than fine HPCC mode can be
specified for parameter No. 1491.
NOTE
During involute interpolation, the lower feedrate limit for the
"acceleration clamp in the vicinity of the basic circle" of involute
interpolation automatic feedrate control is applied.