Mitsubishi Electronics FR-S500 instruction manual Error Code List, Operation at alarm occurrence

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	Definition	Inverter
Code			Operation
	Computer	The number of errors consecutively detected in
H0		communication request data from the computer is
	NAK error
		greater than allowed number of retries.
			Brought to an
H1	Parity error	The parity check result does not match the specified parity
H2	Sum check	The sum check code in the computer does not match	alarm stop (OPT)
	error	that of the data received by the inverter.	if error occurs
			continuously
	Protocol	Data received by the inverter is in wrong protocol, data
H3		receive is not completed within given time, or CR and	more than the
	error
		LF are not as set in the parameter.	allowable number
			of retries.
H4	Framing	The stop bit length is not as specified by initialization.
	error
H5	Overrun	New data has been sent by the computer before the
	error	inverter completes receiving the preceding data.
H6			
	Character	The character received is invalid (other than 0 to 9, A to	Does not accept
H7			received data but
	error	F, control code).	is not brought to
			alarm stop
H8			
H9			
HA	Mode error	Parameter write was attempted in other than the computer	Does not accept
		link operation mode or during inverter operation.
HB	Instruction	The specified command does not exist.	received data but
	code error		is not brought to
			alarm stop.
HC	Data range	Invalid data has been specified for parameter write,
	error	frequency setting, etc.
HD			
HE			
HF			

(5) Operation at alarm occurrence

			Operation Mode
Fault Location	Status		Communication
			Operation	External Operation
			(RS-485 connector)
Inverter fault	Inverter operation		Stop	Stop
	Communication	RS-485	Continued	Continued
		connector
Communication error	Inverter operation		Stop/continued (*3)	Continued
(Communication from	Communication	RS-485	Stop	Stop
RS-485 connector)		connector

*3: Can be selected using the corresponding parameter (factory-set to stop).

(6) Communication error

Fault Location	Error Message	Remarks
	(Operation panel)
Communication error	OPT	Error code is OPT
(Communication from RS-485 connector)

2

FUNCTIONS

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