Delta EB3000 Series User Manual page 484

6. Exception response
When the drive is using the communication connection, if an error occurs, the drive responds to the error
code and sets the highest bit (bit 7) of the command code to 1 (function code AND 80H) then responds to
the control system to signal that an error occurred. If the keypad displays "CE-XX" as a warning message,
"XX" is the error code at that time. Refer to the table of error codes below for communication error for
reference.
ASCII mode:
STX
Address
Function
Exception code
LRC Check
END
The explanation of exception codes:
Error code
1 Function code is not supported or unrecognized.
2 Address is not supported or unrecognized.
3 Data is not correct or unrecognized.
4 Failure to execute this function code.
':'
'0'
'1' Exception code
'8' CRC Check Low
'6' CRC Check High
'0'
'2'
'7'
'7'
CR
LF
Description
B-15
Appendix B. Modbus ProtocolEB3000
RTU mode:
Address
Function
01H
86H
02H
C3H
A1H