Mitsubishi Electric 800 Series Instruction Manual page 43

• Error code
If any error is found in the data received by the inverter, its error definition is sent back to the computer together with the
NAK code.
Error
Error Item
Code
H0 Computer NAK error
H1 Parity error
H2 Sum check error
H3 Protocol error
H4 Framing error
H5 Overrun error
H6 ―
H7 Character error
H8 ―
H9 ―
HA Mode error
HB Instruction code error
HC Data range error
HD ―
HE ―
HF Normal (no error)
42
PARAMETER
Error Description
The number of errors consecutively detected in communication request
data from the computer is greater than the permissible number of retries.
The parity check result does not match the specified parity.
The sum check code in the computer does not match that of the data
received by the inverter.
The data received by the inverter has a grammatical mistake. Or, data
receive is not completed within the predetermined time. CR or LF is not
as set in the parameter.
The stop bit length differs from the initial setting.
New data has been sent by the computer before the inverter completes
receiving the preceding data.
―
The character received is invalid (other than 0 to 9, A to F, control code).
―
―
Parameter write was attempted in other than the computer link operation
mode, when operation command source is not selected or during inverter
operation.
The specified instruction code does not exist.
Invalid data has been specified for parameter writing, running frequency
setting, etc.
―
―
―
Inverter Operation
Trips (E.SER) if error occurs
continuously more than the
permissible number of retries.
―
Does not accept the received
data, burt the inverter does not
trip.
―
―
Does not accept the received
data, but the inverter does not
trip.
―
―
―