B-63790EN/01 4.DESCRIPTION OF PARAMETERS
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1665 Allowable acceleration in the deceleration function based on the
acceleration during circular interpolation for each axis (for normal mode)
[Input type] Parameter input
[Data type] Real axis
[Unit of data] mm/sec/sec, inch/sec/sec, degree/sec/sec (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 (D)
(For IS-B and millimeter machines, 0.0 to +99999.999; for inch
machines, 0.0 to +9999.9999)
Specify the allowable acceleration in the deceleration function based
on the acceleration during circular interpolation for each axis.
The feedrate is controlled so that the acceleration resulting from
changes in the direction of travel during circular interpolation does
not exceed the value of this parameter.
For an axis for which 0 is set for this parameter, the acceleration
function based on the acceleration is disabled.
If different values are set for this parameter for different axes, the
feedrate is determined based on the lower acceleration of the
specified two circular axes.
This parameter is effective when fine HPCC mode is not used
(ordinary mode) . In fine HPCC mode, parameter No. 1663 is used.
The "deceleration function based on the acceleration during circular
interpolation" is equivalent to the "feedrate clamp with the arc radius"
in the 15B.
In the 15B, the upper feedrate limit, lower feedrate limit, and arc
radius were specified for parameters Nos. 1490 to 1492. In the
feedrate clamp based on the acceleration in the 15i, the allowable
acceleration is set for this parameter.
NOTE
During involute interpolation, the allowable
acceleration for the "acceleration clamp in the vicinity
of the basic circle" of involute interpolation automatic
feedrate control is applied.
1670 Acceleration for each axis for deceleration stop at power failure
[Input type] Parameter input
[Data type] Real number axis
[Unit of data] mm/sec/sec, inch/sec/sec, degrees/sec/sec (machine unit)
[Minimum unit of data] The increment system of the axis in question is followed.
[Valid data range] See the standard parameter setting table (D).
(For IS-B and millimeter machines, 0.0 to +99999.999; for inch
machines, 0.0 to +9999.9999)
Set an acceleration value to be applied to deceleration stop of the
target axis upon a power failure.
If this parameter is set to 0 for an axis, deceleration is not performed
for that axis upon a power failure.
When the synchronous control or tandem control is used, same
parameter must be set in the master axis and slave axis.