Mitsubishi Electric MELSOFT FR Configurator2 Instruction Manual page 199

6.
The following warning window will be displayed. Read the description and select [Yes].
Be sure to confirm that the VFD is stopped and that the communication to the VFD (USB communication/Ethernet
communication) is stopped before executing the update.
Do not turn off the power of the VFD or disconnect the USB cable or Ethernet cable during the update. Before
starting the update, make sure that the connection between FR Configurator2 and the VFDs is switched to offline.
Do not operate FR Configurator2 during the update. The update may fail.
7.
The update complete message appears in the status field for the inverter whose firmware is updated.
8.
Perform All parameter clear. (To apply the parameter setting values recorded before the update, perform All
parameter clear and then write the setting values by performing parameter batch write or other functions.)
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3. FUNCTION
3.14 Firmware update