Mitsubishi Electric FR-A7NP Instruction Manual page 56

PPO TYPE SUPPORT
SPECIFICATION
CAUTION
Only when the contents of the command request (request for changing the inverter setting: PKW, HSW, STW/
ECW) 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 enabled" command, changing the
mode to the PU operation mode with switchover function does not allow the "network operation mode
enabled" 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 enabled" from the master once, then send the
"network operation mode enabled" command again.
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