7 Detailed Functions
7 - 68
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
The electronic thermal function enables you to change the overload detection characteristics by setting
the 1st/2nd/3rd Electronic Thermal Characteristics Selection (b013/b213/b313) according to the motor
in use.
This section first describes the basic electronic thermal characteristics and then provides the details of
individual detection characteristics.
Basic Characteristics
The electronic thermal characteristics differ between the heavy load mode and the light load mode.
In addition, because the electronic thermal characteristics are different at 75 kW or higher, this
inverter has four basic characteristics as follows.
Electronic Thermal Characteristics
Overload detection time [s]
60
3.0
0
109% 150% 200%
Percentage for rated
output current of
inverter heavy load
Overload detection time [s]
Basic characteristics of the heavy load mode
Basic characteristics of 3G3RX-A2004-V1 to A2550-V1, 4004-V1 to A4550-V1
Basic characteristics of the light load mode
60
5
0
109% 120% 150%
Percentage for rated
output current of
inverter light load
60
0.5
0
109% 150% 180%
Basic characteristics of 3G3RX-A4750-V1 to A413K-V1
60
5
0
109% 120% 150%
Overload detection time [s] Overload detection time [s]
Basic characteristics of the heavy load mode Basic characteristics of the light load mode
Percentage for rated
output current of
inverter heavy load
Percentage for rated
output current of
inverter light load
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