
B–63523EN–1/03
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
940
Even if the feedrate is changed during the execution of the machining
program, the acceleration/deceleration reference speed specified with the
above command remains in effect. If this occurs, the machining time may
become longer because machining is performed at the feedrate different
from the acceleration/deceleration reference speed.
For this reason, the acceleration/deceleration reference speed to be
specified with the above command should be as close as possible to the
actual machining speed.
NOTE
The G05.1Q1Fxxxx, G05P10000Fxxxx command must be
issued in feed per minute (G94) mode.
If this command is issued in another mode, the speed
specified with this command will be generated the alarm(
PS5111).
The acceleration/deceleration reference speed is set in parameter No.
7066( AICC or AI nanoCC) or No.19520( AI–HPCC or AI–nanoHPCC).
Because these parameters must be set in input unit, when the input unit
is changed, these parameters must be changed.
This method is used if the G05.1Q1 block or G05 P10000 block does not
have an F command.
The speed specified with the F command issued when a cutting block
group (such as G01 and G02) starts is assumed the acceleration/
deceleration reference speed,
This method is used if the G05.1Q1 block or G05 P10000 block does not
have an F command and the parameter of the acceleration/deceleration
reference speed is set to 0.
G05.1Q1;
(G00)
G01 X––– Y––– Z––– F*** ;
X––– Y––– Z–––
X––– Y––– Z–––
X––– Y––– Z–––
G00 ;
G05.1Q0 ;
Cutting block group
Even if an F command is issued before a cutting block group and the F
command is effective to the cutting block group modally, the speed
specified with the modal F effective at the start of cutting will be assumed
the acceleration/deceleration reference speed.
Optimum bell–shaped acceleration/deceleration before interpolation, as
mentioned here, refers to bell–shaped acceleration/deceleration before
interpolation in which linear acceleration/deceleration not reaching the
specified acceleration/deceleration does not occur if T2 > T1. Calculation
is performed as described below.
(2) Setting the speed on
the Parameter
(3) Using the speed
specified with the F
command issued at
the start of cutting
as the reference
speed
D Acceleration/deceleratio
n parameter calculation
method