
PROGRAMMING19. HIGH SPEED CUTTING FUNCTIONS
B–63534EN/02
508
In Look–ahead bell–shaped acceleration/deceleration before
interpolation, the speed during acceleration/deceleration is as shown in
the figure below.
Specified
speed
Speed
Non–linear
acceleration/deceleration
Non–linear
acceleration/deceleration
Linear
acceleration/deceleration
T1
T2 T2
Time
T1: Time determined from the specified speed and the specified acceleration
Specified acceleration:
In case of AI contour control (AICC)
and AI nano contour control (AI nanoCC)
Parameter No.1770/Parameter No.1771
In case of AI High precision contour control (AI–HPCC)
and AI nano High precision contour control (AI–nanoHPCC)
Parameter No.8400/Parameter No.8401 (or No.19510)
T2: Acceleration change time
In case of AICC and AI nanoCC : Parameter No.1772
In case of AI–HPCC and AI–nanoHPCC : Parameter No.8416
Fig.19.9 (a)
The time T1, shown above, varies with the specified speed. If the
specified speed is low, the speed will be as shown below, causing linear
acceleration/deceleration not reaching the specified acceleration.
19.9
LOOK–AHEAD
BELL–SHAPED
ACCELERATION/DEC
ELERATION BEFORE
INTERPOLATION
TIME CONSTANT
CHANGE FUNCTION
General