
1. Outline
By this function, the acceleration/deceleration before interpolation of the cutting feed during the
simple high-precision contour control mode can be changed to the bell type from the linear type.
Because the smooth acceleration/deceleration becomes effective to the cutting feed with this
function, the mechanical shock by the acceleration change in case of the cutting feed speed
change can be reduced.
Feedrate
tb
I
<-__.
31
ta
i I
“.-.L.“.....“....“..““.-“.“..“__--~-
I
i”
4
. . . . . . . . . . . . . . . ..-... Linear type acceleration
/ deceleration
Bell type acceleration
/ deceleration
ta It depends on linear type
acceleration.
tb Bell type time constant
tc Acceleration/deceleration
time of bell type
Time
tc = ta + tb
ta is not constant. It depends
on specified feedrate.
ta
=
Specified feedrate
_I
I
tc
. a
p . . . . _-_-_~_._._._.__“_.__-_3t
Linear type acceleration
tb is constant.
acceleration
. . . . . . . . . . . . . . . . . . . . . . . . Linear type acceleration
/ deceleration
Bell type acceleration
/ deceleration
Time
ta It depends on linear type
acceleration.
tb Bell type time constant
tc Acceleration/deceleration
time of bell type
tc = ta + tb
TITLE
FS16318i-MA, FS16/18-MC
I Look ahead bell-type acceleration/deceleration
before interpolation Specifications
01 1 97.01.23 1
1 Newly registered
I
DRAW, NO, A _
6 0 8 9 8 E N ( CUSTa
EDIT.
DATE
DESIG.
DESCRIPTION
’ F A N U C L T D 1 SHEET 2/ 6
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