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6 Basic Parameter Settings
High-function General-purpose Inverter RX2 Series User’s Manual
6-2 Parameter Setting for Motor Related
6
6-2-1 Motor Basic Settings
The inverter automatically operates the automatic voltage regulation function (AVR function). This func-
tion outputs voltage to the motor correctly regardless of input voltage fluctuation supplied to the inverter.
Output of a voltage higher than the input voltage is not possible even using this function.
In case you set AVR function to OFF, configure the parameter [bA146] Over magnetization deceleration
function selection, 1st_motor.
[bA146]=02 for AVR OFF during deceleration.
[bA146]=01 for AVR OFF all time.
General V/f control command is given in the following with the base frequency and rated voltage being
set.
The output voltage from the base to maximum frequency cannot exceed the rated voltage.
Precautions for Correct Use
Basically the synchronous motor needs current calculation control and the motor parameters
need to be set. The parameters in this item and motor constants in the next item need to be set.
Automatic Voltage Regulation Function (AVR Function)
Relation between Frequency and Voltage under General V/f Control
(IM)
Control of General Synchronous Motor
Output voltage
Output voltage by AVR
function
Motor
Rated voltage
Input voltage
Time (s)
Max. frequency
Command frequency (Hz)
Base frequency
Output voltage
Motor
Rated voltage
(Ex.) 200V
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