68
Parameter Description
Parameter Description
(4). Abnormal response
Abnormal responses are obtained because the query information received from the inverter is
incorrect in terms of the function, address and data.
Mode
Start
Address
1
Function
2
H80
Function code
Error Code
3
Check End
ASCII H3A 2char
2char
2char 2char 0D
0A
RTU >=10ms
1byte
1byte
1byte
2byte >=10ms
Message
Content
1
Address
Set the address for the information to be sent to.
2
Function code
Function code
ˇ
H80
3
Error code
Set the code from the following table.
List of error codes:
Resource
Code
Meaning
Remarks
H01
Invalid function
code
The inverter can not handle the code from the query
message issued by the computer. H03, H06, H08 and H10
are the function codes.
H02
Invalid data
address
The inverter can not handle address coming from the query
message issued by the computer. (For addresses not listed in
the table, retention parameters, parameters cannot be used to
read and write.)
Inverter
Response
H03
Invalid data
The inverter can not handle the data coming from the query
message issued by the computer. (There is a specified mode
and errors when the data are outside the writing range of the
parameters.)
Note: Reading more than one parameters, even reading the retention parameters, are not considered as an error.
The following errors in the data issued by the computer can be detected by the inverter, but there is
no feedback from the inverters for detecting errors.
Error detection list:
Error item
Error content
Parity error
Parity received by the inverter is different from the initial set of the inverter.
Frame error
The stop bit lengths of the data that the inverter has received do not match to the
initial set of stop bits of the inverter
Overflow error
When the inverter has not yet received the data but the computer starts to write
the incoming data.
Check error
The inverter’s data calculated according to the received LRC / CRC check result
is inconsistent with the received LRC / CRC checksum.
