Mitsubishi Electric FR-A8NP Instruction Manual page 79

NOTE
• Only when the contents of the command request (request for changing the inverter setting: PKW) from the master
changed, the inverter processes the request. If the contents of the command request are identical with those of the
last request, the inverter does not process the request. (The received request is cleared.)
For instance, while the master keeps sending the "network operation mode enable" command, changing the mode to
the PU operation mode with switchover function does not allow the "network operation mode enable" command to be
executed due to the same contents as that sent last time. Therefore, the operation mode remains the PU operation
mode without changing to the Network operation mode.
In this case, send another command as "PU operation mode enable" from the master once, then send the "network
operation mode enable" command again.
78
PPO TYPE NON-SUPPORT SPECIFICATION