VLT® Serie 2800 and VLT® Serie 6000 Modbus RTU
Exception
Codes
å Exception Codes
å Exception Code Tables
When the adjustable frequency drive responds to
the master via the Modbus serial network, it uses
the function code field to indicate either a normal
(error-free) response or an error (called an exception
response). In an error-free response, the drive simply
echoes the original function code. For an exception
response, the drive will return a code that is equivalent
to the original function code with its most-significant bit
settoalogic1. Inaddition,thedriveplacesaunique
code into the data field of the response message. This
tells the master what kind of error occurred, or the
reason for the exception. The tables below identify
the codes and describe their meaning.
Errors
Modbus
Code
(decimal)
Meaning
00 The parameter number does not exist
01 There is no write access to the parameter
02 The data value exceeds the parameter limits
03 The used sub-index does not exist
04 The parameter is not of the array type
05 Thedatatypedoesnotmatchtheparametercalled
06 Only Reset
07 Not changeable
11 No write access
17 Data change in the parameter called is not possible in the present mode of the drive. Some
parameters can only be changed when the motor has stopped.
18 Other error
130 There is no bus access to the parameter called
131 Data Change is not possible because factory setup is selected
Modbus RTU Errors
Modbus
Code
(decimal)
Meaning
64 Invalid Data Address
65 Invalid Message Length
66 Invalid Data Length or Value
67 Invalid Function Code
MG.10.S1.22 - VLT is a registered Danfoss trademark
31
To Next Page
Loading...
Need help?
General
