
B-63943EN-1/02 7.FEEDRATE CONTROL/ACCELERATION AND DECELERATION CONTROL
- 789 -
- Setting acceleration pattern data
cceleration
Speed
FbFa
a
P1
P
P3
P4
P
cceleration pattern
P0
Fig. 7.2.5 (c) Setting acceleration pattern
Set the speed and the acceleration at each of the acceleration setting
points P0 to P5 for each condition, plus movement and acceleration,
plus movement and deceleration, minus movement and acceleration,
minus movement and deceleration, and for each axis.
The line joining the acceleration setting points is regarded a
acceleration pattern.
For example, while the speed is between Fa and Fb in the previous
figure, the acceleration is calculated with Aa and Ab. Tangential
acceleration is controlled not to exceed the calculated acceleration for
each axis.
CAUTION
It is not desirable to set an acceleration pattern in
which a large acceleration is set right at a speed of
0, because this will shock the machine. For this
reason, be sure to set a low acceleration at a
speed of 0, as in the figure above.
Table 7.2.5 (b) Parameters for acceleration pattern
Acceleration parameter
During acceleration During deceleration
Acceleration
setting point
Speed
parameter
During
movement
in plus
direction
During
movement
in minus
direction
During
movement
in plus
direction
During
movement
in minus
direction
P0 (Speed 0) No.19545 No.19551 No.19557 No.19563
P1 No.19541 No.19546 No.19552 No.19558 No.19564
P2 No.19542 No.19547 No.19553 No.19559 No.19565
P3 No.19543 No.19548 No.19554 No.19560 No.19566
P4 No.19544 No.19549 No.19555 No.19561 No.19567
P5 No.1420 No.19550 No.19556 No.19562 No.19568