FF = 1)
Once the HFF, HEC or HF3 instruction code is written, the set value is held, but is reset to 0 when the
inverter is reset or all clear is performed.
<Error code list>
The corresponding error code in the following list is displayed if an error is detected in any communication
request data form the computer.
Computer NAK error
Sum check error
Instruction code error
Data range error
When setting the programmed operation
(instruction code H3D to H5A, HBD to
H00: Running frequency
H02: Rotation direction
When setting the bias/gain (instruction code H5E to H61, HDE to
H02: Analog value of terminal
The number of errors consecutively detected in communication
request data from the computer is greater than allowed number of
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.
Data received by the inverter is in the wrong protocol, data
receive is not completed within the given time, or CR and LF are
not as set in the parameter.
The stop bit length is not as specified.
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
Parameter write was attempted in other than the computer link
operation mode or during inverter operation.
The specified command does not exist.
Invalid data has been specified for parameter write, frequency
6 3 3 B
Brought to an alarm stop
(E.PUE) if error occurs
continuously more than
the allowable number of
Does not accept receive
data but is not brought to
an alarm stop.
Does not accept or
receive data but is not
brought to an alarm stop.