Download USER`S MANUAL SYSDRIVE 3G3MV Multi-function

Chapter 7
Communications
7-7
Communications Error Codes
The Inverter will detect a communications error if normal communications fail or a message data error occurs.
The Inverter returns a response that consists of the Slave address, function code with
the MSB set to 1, error code, and CRC-16 check block when the communications error is
detected.
When the Master receives an error code, refer to the following table for troubleshooting
and remedying the error.
H Errors and Remedies
Error
code
01 Hex
Name
Function code error
02 Hex
Register number
error
03 Hex
Data number error
21 Hex
Data setting error
Probable cause
Remedy
The function code is set to a code other than 03,
08, or 10 Hex.
The specified register number has not been
registered.
An attempt was made to read the register of the
Enter command.
The number of write or read registers is not within
a range from 1 to 16 (0001 and 0010 Hex).
The number of registers of the DSR message
multiplied by two does not coincide with the
number of bytes of the attached data.
The write data is not within the permissible range.
The data set is illegal and causes an OPE (OPE1
through OPE9) error.
Check and correct
the function code.
Check and correct
the register number.
Check and correct
the number of
registers or the
number of bytes.
Check the display on
the Digital Operator
and correct the data.
7-27