Hi everyone!

I going use Inverter for drive pump motor of power 90kW.

In the Mitsubishi short description letter write down that the model FR-F740-01800 drive motor rated capacity 90 kW at 120% overload capacity.

May I use this model of Inverter for drive motor 90 kW?

 

Just going by the #'s you put up in the post I'd say you CAN use it BUT you'll be pushing it to the limit. The 120% is meant for a protection buffer in case of a spike. Running it at the high limit like that will probably cause it to wear out quicker. I'd recommend trying to find a bit higher of a rating just to save the hassle and the $ of constant replacement. That's just my thoughts on the whole idea.