
B–64113EN–1/01
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
418
1783
Allowable speed difference for the speed difference based corner deceleration
function (linear acceleration/deceleration before interpolation)
[Data type] Word axis
Valid data range
y
IS-A, IS-B IS-C
Millimeter machine 1 mm/min 6 to 15000 6 to 12000
Inch machine 0.1 inch/min 6 to 6000 6 to 4800
Rotation axis 1 deg/min 6 to 15000 6 to 12000
A separate allowable feedrate difference can be set for each axis. The
allowable feedrate difference is set for each axis with this parameter.
Among the axes that exceed the specified allowable feedrate difference,
the axis with the greatest ratio of the actual feedrate difference to the
allowable feedrate difference is used as the reference to calculate the
reduced feedrate at the corner.
1784
Speed when overtravel alarm has generated during acceleration/deceleration
before interpolation
[Data type] Word
Valid data range
y
IS-A, IS-B IS-C
Millimeter machine 1 mm/min 6 to 15000 6 to 12000
Inch machine 0.1 inch/min 6 to 6000 6 to 4800
Rotation axis 1 deg/min 6 to 15000 6 to 12000
Deceleration is started beforehand to reach the feedrate set in the
parameter when an overtravel alarm is issued (when a limit is reached)
during linear acceleration/deceleration before interpolation. By using
this parameter, the overrun distance that occurs when an overtravel alarm
is output can be reduced.
This setting can be applied also to rapid traverse blocks by setting bit 0
(OTR) of parameter No.7057. (M series)
NOTE
1 When 0 is set in this parameter, the control described above
is not exercised.
2 Use type–B linear acceleration/deceleration before
interpolation (by setting bit 0 (FWB) of parameter No.1602
to 1).
3 The control described above is applicable only to stored
stroke check 1.
4 The control described above is performed for the axes
specified in the current block and next block. By setting bit
5 (ODA) of parameter No. 7055, the control can be
performed just for the axis specified in the current block.
[Unit of data]
[Valid data range]
[Unit of data]
[Valid data range]