Difference in the monitor function

The same value is displayed in the initial setting. When negative output is enabled by setting "0" to Pr.290 (Monitor negative output selection), there are f... More Details >>

FR-A800-CRN

By inputting the rope length, the speed command is sent to suppress a swinging. More Details >>

Inverter input power supply

Square wave input is not recommended since it can cause failures (for example, damage the diode bridge). More Details >>

Operation at external operation/stop

It is recommended to turn OFF the start signals (STF and STR) when stopping the inverter.In this case, it is not probable that the motor rotates due to a cal... More Details >>

Inverter's heat generation quantity

The heat generation quantity while the inverter is outputting the rated current is as follows:1. FR-A520-3.7K: 230 W2. FR-A520-7.5K: 420WThe heat generation ... More Details >>

0 Hz output of inverter

When the command frequency is 0 Hz, the inverter does not generate output and the voltage is 0 V. More Details >>

Using built-in potentiometer and multi-speed together

Yes. Set Pr.79 = 3. (Input the start signal from an external source.) More Details >>

Carrier frequency of low-noise series

The carrier frequency is initially set to 7 kHz. (When Pr.10 is set to "---", you can set or change the setting using Pr.72.) Raising the carrier frequency r... More Details >>

"Err" displayed at power-ON

This error is displayed when the inverter and operation panel FR-PU04 cannot communicate with each other correctly or the reset signal remains ON. Therefore,... More Details >>

Torque characteristic at low speed

Torque is not guaranteed for slower than 0.5 Hz. Therefore, no data for this is published. Also, no torque is generated at 0 Hz. More Details >>