Operation panel (FR-PA02)

Set Pr.146 (Built-in potentiometer switching) to "0".This allows for using the potentiometer built in the FR-PA02 to set the frequency.(Set this parameter to... More Details >>

Inverter selection when multiple inverters are to be connected

Be sure to use a high power factor converter with the capacity higher than the total capacity of the inverters connected. (Note: One or more of the inverters... More Details >>

Using FR-A540 inverter on CC-Link

Answer to question 1 When the CC-Link option goes faulty, OPT (option error) occurs and the inverter's fault output is triggered. When communication is lost ... More Details >>

Can I replace the cooling fan alone?

The fan of the FR-A024 cannot be replaced by the customer. Mitsubishi Electric System & Service will replace it, so contact us to order it. More Details >>

Using both types of power factor improving reactors

Yes.By using both types of reactors together, you can reduce the outgoing harmonic current.For examples of harmonics reduction, refer to the value in the har... More Details >>

When motor current is large

If the parameters related to the output voltage are not changed from the initial setting, it is unlikely that the output current at 55 Hz and 60 Hz is double... More Details >>

Device Net classes

Class, instance, and attribute represents different grouping of objects.Comparing object grouping to a mailing address, they can be considered as follows:Sta... More Details >>

Frequency setting

When running the inverter in Advanced magnetic flux vector control, the frequency setting value is increased by the amount of the motor's slippage, resulting... More Details >>

Rated motor current setting

No. the torque cannot be limited by using Pr.9.Set Pr.277 (Stall prevention current switching) to "1".The value of Pr.22 (Stall prevention operation level) w... More Details >>

Tuning

Check the parameters listed below necessary for tuning again.Pr.9, Pr.71, Pr.80, Pr.81, Pr.83, Pr.84, and Pr.96 More Details >>