Mitsubishi Electric FR-S520E Series Instruction Manual page 168

Communication parameters
<Error Code List>
The corresponding error code in the following list is displayed if an error is detected in
any communication request data from the computer:
Error
Item
Code
Computer
H0
NAK error
H1 Parity error The parity check result does not match the specified parity
Sum check
H2
error
Protocol
H3
error
Framing
H4
error
Overrun
H5
error
⎯⎯⎯
H6
Character
H7
error
⎯⎯⎯
H8
⎯⎯⎯
H9
Mode error Parameter write was attempted in other than the computer
HA
Instruction
HB
code error
Data range
HC
error
⎯⎯⎯
HD
⎯⎯⎯
HE
⎯⎯⎯
HF
(5) Operation at alarm occurrence
Fault Location
Inverter fault
Communication error
(Communication from
RS-485 connector)
*3: Can be selected using the corresponding parameter (factory-set to stop).
(6) Communication error
Fault Location
Communication error
(Communication from RS-485 connector)
The number of errors consecutively detected in
communication request data from the computer is
greater than allowed number of retries.
The sum check code in the computer does not match
that of the data received by the inverter.
Data received by the inverter is in wrong protocol, data
receive is not completed within given time, or CR and
LF are not as set in the parameter.
The stop bit length is not as specified by initialization.
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).
link operation mode or during inverter operation.
The specified command does not exist.
Invalid data has been specified for parameter write,
frequency setting, etc.
Status
Inverter operation
RS-485
Communication
connector
Inverter operation
RS-485
Communication
connector
Definition
⎯⎯⎯
⎯⎯⎯
⎯⎯⎯
⎯⎯⎯
⎯⎯⎯
⎯⎯⎯
Communication
Operation
(RS-485 connector)
Stop
Continued
Stop/continued (*3)
Stop
Error Message
(Operation panel)
OPT
158
Inverter
Operation
Brought to an
alarm stop (OPT)
if error occurs
continuously
more than the
allowable number
of retries.
⎯⎯⎯
Does not accept
received data but
is not brought to
alarm stop
⎯⎯⎯
⎯⎯⎯
Does not accept
received data but
is not brought to
alarm stop.
⎯⎯⎯
⎯⎯⎯
⎯⎯⎯
Operation Mode
External Operation
Stop
Continued
Continued
Stop
Remarks
Error code is OPT