7 Detailed Functions
7 - 52
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
(Example 1) AVR = OFF
If the incoming voltage fluctuates, the output voltage also fluctuates.
In particular, low incoming voltage causes a low motor torque.
(Example 2) AVR = ON
The output voltage is controlled to a constant level even when the incoming voltage fluctuates.
However, if the incoming voltage is low, the motor toque may decrease as the value approaches the
base frequency because the inverter cannot output voltage exceeding the incoming voltage.
Output voltage
220 V
(C) High incoming power supply voltage (220 V)
200 V
180 V
(A) Normal (200 V)
(B) Low incoming power supply voltage (180 V)
60 Hz
Output frequency
Base frequency: 60 Hz
Incoming voltage: set to 200 V
Output voltage
220 V
(C) High incoming power supply voltage
200 V
180 V
(A) Normal
(B) Low incoming power supply voltage
60 Hz
Output frequency
Base frequency: 60 Hz
Incoming voltage: set to 200 V
54 Hz