Omron SYSDRIVE 3G3MV A2002, User Manual

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7-31
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, func-
tion 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
Name Probable cause Remedy
01 Hex Function code
error
The function code is set to a code other
than 03, 08, or 10 Hex.
Check and
correct the
function code.
02 Hex Register number
error
The specified register number has not
been registered.
Check and
correct the
register number.
error
An attempt was made to read the
register of the Enter command.
correct the
register number.
03 Hex Data number
error
The number of write or read registers is
not within a range from 1 to 16 (0001
and 0010 Hex).
Check and
correct the
number of
registers or the
The number of registers of the DSR
message multiplied by two does not
coincide with the number of bytes of the
attached data.
number of
registers or the
number of bytes.
21 Hex Data setting error The write data is not within the
permissible range.
Check the
display on the
Digital Operator
The data set is illegal and causes an
OPE (OPE1 through OPE9) error.
Digital Operator
and correct the
data.
Communications Chapter 7