
B-63950EN/02 4.DESCRIPTION OF PARAMETERS
- 293 -
4.28 PARAMETERS OF INVOLUTE INTERPOLATION
5610 Limit of initial permissible error during involute interpolation
[Input type] Parameter input
[Data type] Real path
[Unit of data] mm, inch (input unit)
[Minimum unit of data] Depend on the increment system of the reference axis
[Valid data range] 0 or positive 9 digit of minimum unit of data (refer to the standard
parameter setting table (B) )
(When the increment system is IS-B, 0.0 to +999999.999)
This parameter sets the allowable limit of deviation between an
involute curve passing through a start point and an involute curve
passing through an end point for an involute interpolation command.
5620
Lower override limit in automatic feedrate control during involute
interpolation
[Input type] Parameter input
[Data type] Byte path
[Unit of data] %
[Valid data range] 0 to 100
In "override in the cutter compensation mode" under involute
interpolation automatic feedrate control, the feedrate of the tool center
near a basic circle may become very low in the case of an inner offset.
To prevent this, set a lower override limit in this parameter.
Thus, the feedrate is clamped so that the feedrate is not lower than a
specified feedrate multiplied by the lower override limit set in this
parameter.
NOTE
When 0 or a value not within the valid data range is
set, involute interpolation automatic feedrate
control ("override in the cutter compensation mode"
and "acceleration clamping near a basic circle") is
disabled.