
A-78640E
Sheet
Title
Draw
No.
04 Feb.08.’03 Part of (4) is added or modified. Addition of 2.16.5
03 Jul.02.’02 A. Fukumoto Part of (3) is added or modified. T.Endo
02 May.13.’02 A. Fukumoto Addition of Tool Radius control for 5-axis machining etc T.Endo
Ed. Date Design Description
Date Jan.25.’02 Desig. A.Fukumoto Apprv. T.Endo
FANUC Series 16i /18i -TB
Specifications of AI High-Precision Contour Control /
I Nano High-Precision Contour control
121/190
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. 2.24(b) Parameters for acceleration pattern
Acceleration parameter
During acceleration During deceleration
Accelera
tion
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
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
2
, 100.0 inch/sec
2
, 100.0 degrees/sec
2
.