Mitsubishi Electric FR-D720S SC EC Instruction Manual page 361

Parameter
● Error code
If any error is found in the data received by the inverter, its definition is sent back to the
computer together with the NAK code.
Error
Code
H0
H1
H2
H3
H4
H5
H6
H7
H8
H9
HA
HB
HC
HD
HE
HF
Tab. 6-54: Error codes
FR-D700 SC EC
Error Item Error Definition
The number of errors consecutively detected in commu-
Computer NAK error nication request data from the computer is greater than
allowed number of retries.
The parity check result does not match the specified
Parity error
parity.
The sum check code in the computer does not match
Sum check error
that of the data received by the inverter.
The data received by the inverter has a grammatical
mistake. Alternatively, data receive is not completed
Protocol error
within the predetermined time. CR or LF is not as set in
the parameter.
Framing error The stop bit length differs from the initial setting.
New data has been sent by the computer before the
Overrun error
inverter completes receiving the preceding data.
— —
The character received is invalid (other than 0 to 9, A to
Character error
F, control code).
— —
— —
Parameter write was attempted in other than the compu-
Mode error ter link operation mode, when operation command
source is not selected or during inverter operation.
Instruction code error The specified command does not exist.
Invalid data has been specified for parameter write, fre-
Data range error
quency setting, etc.
— —
— —
— —
Communication operation and settings
Inverter
Operation
Brought to an
alarm stop if error
occurs continu-
ously more than
the allowable
number of retries.
(E.PUE)
—
Does not accept
received data but
is not brought to
alarm stop.
—
—
Does not accept
received data but
is not brought to
alarm stop.
—
—
—
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