
B-63783EN-1/01 7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL
- 705 -
Override to a determined feedrate
The following gives the specifications of override to a feedrate
determined by functions such as deceleration based on feedrate
difference in look-ahead acceleration/deceleration before interpolation
and deceleration based on acceleration rate in fine HPCC.
- When bit 6 (OVR) of parameter No. 1403 = 0
The conventional specifications apply.
Override is invalid for deceleration functions such as deceleration
based on feedrate difference and deceleration based on
acceleration rate.
- When bit 6 (OVR) of parameter No. 1403 = 1
Override is valid for deceleration functions such as deceleration
based on feedrate difference and deceleration based on
acceleration rate.
When bit 6 (OVR) of parameter No. 1403 is 1, the following feedrates
can be overridden:
- Feedrate decelerated by deceleration based on feedrate difference
in look-ahead acceleration/deceleration before interpolation
- Feedrate decelerated by deceleration based on acceleration rate in
fine HPCC.
- Feedrate decelerated by deceleration based on acceleration rate in
circular interpolation
- Feedrate decelerated by acceleration clamp in involute
interpolation
- Minimum feedrate for deceleration based on acceleration rate in
fine HPCC and circular interpolation
- Maximum feedrate of fine HPCC
Even when the feedrate is overridden, the resulting feedrate does not
exceed the maximum cutting feedrate (parameter No. 1422).