
B–63523EN–1/03
7. FEEDRATE CONTROL/ACCELERATION
AND DECELERATION CONTROL
815
To use this function, set bit 7 (BDO) and bit 1 (NBL) of parameter No.
8402 to 1, and also set the following parameters:
Parameter No. 8400: Parameter 1 for setting the acceleration used for ac-
celeration/deceleration before interpolation
Parameter No. 8401: Parameter 2 for setting the acceleration used for ac-
celeration/deceleration before interpolation
Parameter No. 8402, bit 5 (DST) = 1, bit 4 (BLK) = 0
Parameter No. 8416: Time needed to reach maximum acceleration
For details, see the description of the parameters.
Look–ahead bell–shaped acceleration/deceleration before interpolation
controls acceleration as described below.
Maximum acceleration ACC_MAX=
Setting of parameter No. 8400 [mm/min, inch/min]
Setting of parameter No. 8401 [ms]
Time needed to reach maximum acceleration: ACC_TIME = Setting in
parameter No. 8416 [ms]
D When maximum acceleration is reached
+
Acceleration
Time
Feedrate
ACC_TIME ACC_TIME
ACC_TIME ACC_TIME
–ACC_MAX
Time
–
ACC_MAX
Look–ahead bell–shaped
acceleration/deceleration
before interpolation
Description