Omron Sysdrive RX Series - Page 157

4-48
4-2 Function Mode
4
Functions
Reduced Torque Characteristics
Multiplied by the time limit characteristics set in b012/b212/b312 for each frequency.
Constant Torque Characteristics
Do not skip this setting when using a constant torque motor.
Free Setting
To protect the motor according to load, you can freely set the electronic thermal characteristics.
Below is the setting range.
(Example) 3G3RX-A2150 (Rated current: 64 A), b012 = 64
(A)
, Base frequency = 60 Hz, Output frequency =
20 Hz
Torque
x1.0
x0.8
x0.6
0
0
5
6
16
20
50
60
Inverter output
frequency (Hz)
Base frequency
Trip time (s)
60
3.0
0
55.8
(87.2%)
76.8
(120%)
102.4
(160%)
Motor current (A)
(Ratio to the rated
current of the Inverter)
(Example) 3G3RX-A2150 (Rated current: 64 A),
b012 = 64 (A), Output frequency = 2.5 Hz
Torque
x1.0
x0.8
x0.6
0 2.5
560
Inverter output
frequency (Hz)
Output current
value (A)
b020
b018
b016
0
b015 b017 b019 A004/A204/A304
Max. frequency (Hz)
Torque
x1.0
x0.8
0
540
Inverter output
frequency (Hz)
Output current
value (A)
b020
b018
b016
0
b015 b017 b019 A004/A204/A304
Max. frequency (Hz)
(Example) Output frequency = b017
(x): (b018/Rated current) × 109%
(y): (b018/Rated current) × 150%
(z): (b018/Rated current) × 200%
Trip time (s)
60
3.0
0 (x) (y) (z)
Motor current (A)
(Ratio to the rated
current of the Inverter)