5 Basic Settings
5 - 22
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
Examples of Actual Electronic Thermal Characteristics
Electronic thermal characteristics are as shown in the graphs below under the following four
conditions.
• The inverter (Model: G3RX-A2150-V1) is used. (Rated output current: 64 A in the heavy load
mode, 73 A in the light load mode)
1st Electronic Thermal Level (b012) is set to 64 A in the heavy load mode, and 73 A in the light
load mode.
• 1st Electronic Thermal Characteristics Selection (b013) is set to 00 (Reduced torque
characteristics).
• 1st Base Frequency (A003) is set to 60 Hz.
• While the output frequency is output at 20 Hz. (Reduction factor: x0.8)
For the configuration of the V/f control characteristics to output to the motor, set the base frequency and
maximum frequency of your motor.
For the base frequency, set the rated frequency of the motor (the frequency put on the motor rating
nameplate).
For the maximum frequency, set the highest frequency required for your application.
However, do not exceed the maximum rotation speed of the motor.
Basic Characteristics in Heavy Load Mode Basic Characteristics in Light Load Mode
Base Frequency and Maximum Frequency of Motor
Parameter No. Function name Data Default data Unit
A003 1st Base Frequency 30. to 1st Maximum Frequency
(A004)
60. Hz
A203 2nd Base Frequency
*1
*1. To enable the switching to the 2nd/3rd control, allocate one of the Multi-function Input S1 to S8 Selection (C001
to C008) to 08 (SET) or 17 (SET3) and turn ON that terminal.
30. to 2nd Maximum Frequency
(A204)
60. Hz
A303 3rd Base Frequency
*1
30. to 3rd Maximum Frequency
(A304)
60. Hz
A004 1st Maximum
Frequency
30. to 400. 60. Hz
A204 2nd Maximum
Frequency
*1
30. to 400. 60. Hz
A304 3rd Maximum
Frequency
*1
30. to 400. 60. Hz
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