
B–63523EN–1/03
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
919
NOTE
In AI high precision contour control mode or AI NANO high
precision contour control mode, when very small linear
interpolation blocks which have the following 1) condition,
are commanded continuously, since these commands are
assumed as die mold program, these blocks may be
interpolated as smooth curve which is generated internally.
Block length (mm) v Commanded Feedrate(mm/min) /
7500 ––– (1)
For example, in case the commanded feedrate is
6000mm/min, the block whose length is less than 0.8mm
satisfies the above formula (1).
These parameters can change whether the linear
interpolation blocks with small movement are interpolated
as linear segments or smooth curve. These parameters are
available on the following software series and edition.
On the software which has the parameter No.19503#7
(FLP), the parameter No.19503#3 (LNS) is not effective.
Currently, because the commanded feedrate is faster, the
block length of the previous 1) condition becomes longer. In
this condition, if CNC interpolates as a smooth curve, the
deviation between commanded path and interpolated path
becomes bigger.
Therefore, in general, the linear interpolation blocks with
small movement should be interpolated as linear segments,
not as a smooth curve. From the above point of view, these
parameters should be set as follows.
(1) Parameter No.19503#3 (LNS)
This parameter is available in case both CNC software and
RISC software are the following series and edition.
In this condition, this parameter No.19503#3 (LNS) should
be set to ”1”.
CNC software
FS16i–MB: B0H1/17 X, or B0HA/01 X
FS18i–MB: BDH1/17 X, or BDHA/01 X
FS18i–MB5: BDH5/07 X
RISC software
B451/14 X, or B45A/01 X 05
Commanded point
Output as smooth curve