
B–63523EN–1/03
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
953
Linear acceleration/deceleration after cutting feed interpolation is an
optional function. This function is enabled when the CTL bit (bit 0 of
parameter No. 1610) is specified. If bell–shaped
acceleration/deceleration after interpolation for cutting feed is also
enabled, bell–shaped acceleration/deceleration is executed. The time
constants for cutting feed and jog feed for each axis are specified in
parameter Nos. 1622 and 1624 respectively, in the same way as for
exponential acceleration/deceleration. The values specified for the FL
feedrate for cutting feed (parameter No. 1623) and the FL feedrate for jog
feed (parameter No. 1625) are ignored (always assumed to be 0).
#7
1610
#6 #5 #4
JGLx
#3 #2 #1 #0
CTLx
[Data type] Bit axis
CTLx Acceleration/deceleration in cutting feed including feed in dry run
0 : Exponential acceleration/deceleration is applied.
1 : Linear acceleration/deceleration after interpolation is applied.
Parameter
Acceleration/deceleration
CTBx CTLx
Acceleration/deceleration
0 0 Exponential acceleration/deceleration
0 1 Linear acceleration/deceleration after interpolation
1 0 Bell–shaped acceleration/deceleration after interpolation
JGLx Acceleration/deceleration in manual continuous feed (jog feed)
0 : Exponential acceleration/deceleration is applied.
1 : Linear acceleration/deceleration after interpolation or bell–shaped
acceleration/deceleration after interpolation is applied (depending on
which is used in cutting feed).
1622
Time constant of exponential acceleration/deceleration, linear acceleration/
deceleration after interpolation or bell–shaped acceleration/deceleration
after interpolation, in cutting feed for each axis
[Data type] Word axis
[Unit of data] ms
[Valid data range] 0 to 4000 (For exponential acceleration/deceleration)
0 to 512 (For linear acceleration/deceleration after interpolation or
bell–shaped acceleration/deceleration after interpolation)
Set the time constant used for exponential acceleration/deceleration,
linear acceleration/deceleration after interpolation or bell–shaped
acceleration/deceleration after interpolation in cutting feed for each axis.
Except for special applications, the same time constant must be set for all
axes in this parameter. If the time constants set for the axes differ from
each other, proper straight lines and arcs cannot be obtained.
Parameter