
B–63503EN–1/01
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
298
F : Maximum machining feedrate during linear acceleration/deceleration
before interpolation (parameter 1770)
T : Time required to reach the maximum machining feedrate during linear
acceleration/deceleration before interpolation (parameter 1771)
F
OT
: Speed when an overtravel alarm is issued during linear
acceleration/deceleration before interpolation (parameter 1784)
FIX : Any fractional part is truncated.
NOTE
1 When 0 is set, the above control is not performed.
2 When stroke check is invalid, the above control is also
invalid.
3 The above control is valid only for stored stroke check 1.
1783 Allowable feedrate difference for each axis in the corner deceleration function by
feedrate difference (for acceleration/deceleration before interpolation)
[Data type] Word axis
Valid data range
Increment system Unit of data
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
This parameter sets the allowable difference in feedrate on each axis in the
automatic corner deceleration function by the difference in feedrate when
liner acceleration/deceleration before interpolation is used.
1785 Parameter for determining the allowable acceleration in feedrate clamping
by acceleration
[Data type] Word axis
[Unit of data] 1 ms
[Valid data range] 0 to 32767
This parameter is used to set the time required to reach the maximum
cutting feedrate and determine the allowable acceleration when feedrate
clamping by acceleration is performed.
The allowable acceleration is determined from the maximum cutting
feedrate and the data set in this parameter. Parameter 1432 (maximum
cutting feedrate in Look–ahead control (Multiple blocks are read in
advance mode) is used as the maximum cutting feedrate.
D Parameter related to
automatic corner
deceleration
[Unit of data]
[Valid data range]
D Parameter related to
feedrate clamping by
acceleration