
B–63523EN–1/03
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
908
The method for deceleration according to the feedrate difference differs
depending on the setting of bit 6 (FNW) of parameter No. 19500.
When this parameter is set to ”0”, the maximum feedrate at which the
allowable feedrate difference set in parameter No. 8410 is not exceeded
is used as the decreased feedrate. In this case, the decreased feedrate also
differs depending on the move direction when the profile is the same as
shown below.
(Example)
When bit 6 (FNW) of parameter
No. 19500 is set to 0 and the al-
lowable feedrate difference is set
to 500 mm/min (for all axes)
Decelerates to
500 mm/min.
Decelerates to
354 mm/min.
When this parameter is set to ”1”, the feedrate is determined according to
the conditions that the allowable feedrate difference and allowable
acceleration for each axis are not exceeded. When the profile is the same,
the feedrate is determined according to the above conditions so that the
decreased feedrate is constant irrespective of the move direction.
When this parameter is set to 1, the feedrate decreased by feedrate
determination according to the feedrate difference and acceleration is
reduced by up to about 30% as compared with the feedrate determined
when the parameter is set to 0.
Decelerates to
354 mm/min.
Decelerates to
354 mm/min.
(Example)
When bit 6 (FNW) of parameter
No. 19500 is set to 1 and the al-
lowable feedrate difference is
set to 500 mm/min (for all axes)