
PROGRAMMING
B–63534EN/02
19. HIGH SPEED CUTTING FUNCTIONS
517
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.
Table. 19.10 (b) Parameters for acceleration pattern
Acceler Speed
Acceleration parameter
ation parameter
During acceleration During deceleration
setting
point
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
The speed at P0 is 0, and the speed at P5 is the rapid traverse rate specified
with parameter (No. 1420). The speeds at P1 to P4 are to be set into speed
parameters Nos. 19541 to 19544 as ratio to the rapid traverse speed
(parameter No. 1420).
Any acceleration setting point for which the speed parameter (one of Nos.
19541 to 19544) is set to 0 will be skipped, and the next point whose speed
parameter is set to a non–zero value will be joined together as acceleration
pattern.
The accelerations at P0 to P5 are to be set into acceleration parameters
Nos. 19545 to 19568 as ratio to the reference acceleration. If any of the
acceleration parameters Nos. 19545 to 19568 is set to 0, the acceleration
is assumed 100% (Reference acceleration). Acceleration parameters
should be set to 0 at the acceleration setting point whose speed parameter
is set to 0.
If this function is enabled and both parameter No.1773 and No. 1620 for
an axis are set to 0, the following values are assumed as the reference
acceleration for that axis:
1000.0 mm/sec/sec, 100.0 inch/sec/sec, 100.0 degrees/sec/sec