Mitsubishi Electric FR-F800, Instruction Manual

Page: 626 / 834

(N) Operation via communication and its settings Parameters
5 - 464
●
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.
Response time
Formula for data transmission time
Error
Code
Error Item Error Description Inverter Operation
H0
Computer NAK
error
The number of errors consecutively detected in
communication request data from the computer is greater
than the permissible number of retries.
Trips (E.PUE/E.SER) if error
occurs continuously more
than the permissible
number of retries.
H1 Parity error The parity check result does not match the specified parity.
H2 Sum check error
The sum check code in the computer does not match that of
the data received by the inverter.
H3 Protocol error
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.
H4 Framing error The stop bit length differs from the initial setting.
H5 Overrun error
New data has been sent by the computer before the inverter
completes receiving the preceding data.
H6
⎯ ⎯ ⎯
H7 Character error
The character received is invalid (other than 0 to 9, A to F,
control code).
Does not accept the
received data, but the
inverter does not trip.
H8
⎯ ⎯ ⎯
H9
⎯ ⎯ ⎯
HA Mode error
Parameter write was attempted in other than the computer
link operation mode, when operation command source is
not selected or during inverter operation.
Does not accept the
received data, but the
inverter does not trip.
HB
Instruction code
error
The specified instruction code does not exist.
HC Data range error
Invalid data has been specified for parameter writing,
running frequency setting, etc.
HD
⎯ ⎯ ⎯
HE
⎯ ⎯ ⎯
HF Normal (no error)
⎯ ⎯
Tab. 5-231: Error codes
I001327E
Fig. 5-234: Response time
1
×
Number of data
characters
(Refer to page 5-459)
×
Communication specifications
(Total number of bits) = data transmission time (s)
(Refer to the following.)
Communication speed
(bps)
Computer

Inverter
Inverter

Computer
Data sending time (refer to the following formula)
Inverter data processing time = Waiting time + Data check time
(setting x 10 ms) (Depends on the instruction code
(see tab. 5-233))
Time
Data sending time (refer to the following formula)
10 ms or more necessary