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E. Communication error respond
Once communication error happened, inverter will respond “Function
code and 80H” and communication error code to master system.
Communication error code definition
1. RTU
Once communication error happend, AC drive respond as follow.
Error code Description
01H Function code error, only 03/06/08 available
02H Illegal data value (data value outside limit value)
03H Illegal data address (data address is not available)
04H Illegal operation command
05H Check sum error
06H Drive busy (Inteval time between two data structures are too short)
07H Drive fault, check AC drive
0BH Data structure too short
0CH Data structure too long
0DH No start code or end code in ASCII communication
D1
Address
D2
Function code & 80H
D3
Error code
D4
CRCL
D5
CRCH
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