
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
103/190
• Example of deceleration
To ensure that the feedrate specified for a block is reached when the block is
executed, deceleration is started in the previous block.
To reduce feedrate F3 to feedrate F2, deceleration must be started at P1.
To reduce feedrate F2 to feedrate F1, deceleration must be started at P2.
The tool can be decelerated over several blocks, because several tens of blocks are
read in advance.
• Example of acceleration
Acceleration is started to reach the specified feedrate for a block when the block
is executed.
Time
Feedrate
F3
F2
F1
N1 N2
P2
P1
Specified feedrate
Feedrate after acceleration/
deceleration before
interpolation is applied
Time
Feedrate
F3
F2
F1
N1 N2
Specified feedrate
Feedrate after acceleration/
deceleration before
interpolation is applied