ABB ACS 160 - Page 90

80 ACS 160 User’s Manual
Figure 17 Underload curve types. T
M
nominal torque of the motor, ƒ
N
nominal frequency of the
motor.
100
80
60
40
20
0
2.4 * ƒ
N
3
2
1
5
4
T
M
70 %
50 %
30 %
ƒ
N
(%)