Omron GX-AD0471, User Manual, Page: 296 / 394

12 Troubleshooting and Maintenance
12 - 16 GX-series EtherCAT Slave Unit User’s Manual
 Error Descriptions
Event name Expansion Unit Hardware Error Event code 04A00000 hex
Meaning An Expansion Unit was disconnected during operation or a signal between the Slave Unit and Expansion Unit was
broken.
Source EtherCAT Master Function Module Source details Slave Detection
timing Continuously
Error attributes Level Minor fault Recovery Error reset (after
cycling Slave Unit
power) Log category System
Effects User program Continues Operation The Slave Unit where the error occurred performs the
error output operation (fail-safe).
LED EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
The Expansion Unit was
disconnected during operation. Turn OFF the power supply, mount
the Expansion Unit, and turn the
power supply back ON. Do not allow the Expansion Unit to be
disconnected during operation.
A signal between the Slave Unit and
Expansion Unit was broken. Turn OFF the power supply, mount
the Expansion Unit, and turn the
power supply back ON.
If cycling the power supply does not
correct the problem, replace the
Expansion Unit. None
Attached
information None
Precautions/
Remarks The emergency error code is 5020 hex.
Event name Slave Hardware Error Event code 04A20000 hex
Meaning A hardware error occurred in the EtherCAT communications section.
Source EtherCAT Master Function Module Source details Slave Detection
timing Continuously
Error attributes Level Minor fault Recovery Error reset (after
cycling Slave Unit
power) Log category System
Effects User program Continues Operation The Slave Unit where the error occurred performs the
error output operation (fail-safe).
LED EtherCAT NET RUN EtherCAT NET ERR EtherCAT LINK/ACT
--- --- ---
System-defined
variables Variable Data type Name
None --- ---
Cause and
correction Assumed cause Correction Prevention
The Slave Unit is faulty. If cycling the power supply does not
correct the problem, replace the
Slave Unit. None
Attached
information None
Precautions/
Remarks The emergency error codes are 7030 hex and 7100 hex.