
4.DESCRIPTION OF PARAMETERS B-63330EN/03
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6630 Lower override limit of automatic velocity control during involute
interpolation
[Input type] Parameter input
[Data type] Integer
[Unit of data] %
[Valid data range] 0 - 100
When the override function is used in the cutter compensation mode
for involute interpolation automatic velocity control, the feedrate of
the tool center may be reduced to an extremely low level near the base
circle in the case of internal offset. To void this, set a lower override
limit in this parameter.
Thus, the feedrate is clamped so that the feedrate is not reduced below
the specified feedrate overridden by the lower limit value set in this
parameter.
NOTE
When 0 or a value not within the specifiable range is
set, involute interpolation automatic velocity control
(override in the cutter compensation mode and
acceleration/deceleration clamping near a base circle)
is disabled.
6820 Overrun distance and direction of unidirectional positioning (G60)
[Input type] Parameter input
[Data type] Realaxis
[Unit of data] mm, inch, degree (machine unit)
[Minimum unit of data] Depend on the increment system of the applied axis
[Valid data range] -32767 - 32767
For each axis, set the overrun distance and direction of unidirectional
positioning (G60) . The positioning direction is determined by the
sign of the data set in this parameter, and the overrun distance is
determined by the value of the data set in this parameter.
Overrun distance > 0: Positioning direction is positive (+) .
Overrun distance < 0: Positioning direction is negative (-) .
Overrun distance = 0: Unidirectional positioning is not performed.