Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 430 / 608

Communication operation and setting Parameter
6 - 276
To detect the mistakes of message data from the master, they are checked for the following errors. If
an error is detected, an alarm stop will not occur.
Error Item Error Definition Inverter Side Operation
Parity error
The data received by the inverter differs from
the specified parity (Pr. 120 setting).
Pr. 343 is increased by 1 at error
occurrence.
The terminal LF is output at error
occurrence.
Framing error
The data received by the inverter differs from
the specified stop bit length (Pr. 120).
Overrun error
The following data was sent from the master
before the inverter completes data receiving.
Message frame error
The message frame data length is checked, and
the received data length of less than 4 bytes is
regarded as an error.
CRC check error
A mismatch found by CRC check between the
message frame data and calculation result is
regarded as an error.
Tab. 6-99: Error check item