
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
122/190
• Example of setting acceleration pattern data
In this example, the machine is equipped with the αM30/4000i.
Motor speed at rapid traverse is 3000 (min
-1
).
0
50
100
150
0 1000 2000 3000 4000
Speed(min
-1
)
Torque(Nm)
Fig. 2.24 (d) Speed-torque characteristics of model αM30/4000i
Specifications of the motor model αM30/4000i
Rotor inertia : 0.0099 (Kgm
2
)
Maximum torque :100 (Nm) Speed: 0 to 2000 (min
-1
)
Torque at rapid traverse :79 (Nm) Speed: 3000 (min
-1
)
Minimum torque :58 (Nm) Speed: 4000 (min
-1
)
It assumes that 10 (Nm) is needed for the friction torque, so that the torque for
acceleration / deceleration is shown as the following figure.
Because the friction torque is different on each machine, it is necessary to
observe the actual torque output on the machine.
Maximum torque :90(=100-10) (Nm) Speed: 0 to 2000 (min
-1
)
Torque at rapid traverse :69(=79-10) (Nm) Speed: 3000 (min
-1
)
Minimum torque :48(=58-10) (Nm) Speed: 4000 (min
-1
)
0
20
40
60
80
100
0 1000 2000 3000 4000
Speed(min
-1
)
Torque(Nm)
Fig. 2.24(e) Torque for Acc/Dec with consideration of friction