Malfunctioning of Lenze Inverter.

Discuss the issue with Mitsubishi.

Choke (not Chock) and RFI filter are probably fine, but the brake resistor may not be. While it's true that a resistor is a resistor, the amount of resistance has everything to do with the brake chopper inside the VFD (if any) so the amount of resistance and watt rating of the resistor you have may not be appropriate for the new VFD.

As was said, the people to ask would be Mitsubishi. For all we know, the Mitsi drive needs an external brake chopper anyway and those usually come with their own resistor.

Brake resistor should be ok, especially if it was sized for 11kw and your motor is 7.5kw. VFD dynamic brake function looks at the DC bus voltage and dissipates excess power through the brake resistor when it rises above a particular level when back feed by the motor. The current path is through the freewheeling IGBT drive diodes, the brake circuit IGBT and the brake resistor. The only difference between the Lenze drive and the Mitsubishi drive would be the voltage drop across the diodes and the IGBT which would be small (like 2-4V) compared to the DC link voltage which at this line voltage would be about 540V.

The worst that would happen would be the drive trips on DC link overvoltage in which case you would need a lower resistance value and maybe consequently a higher power rated resistor.

Jim