Omron NJ Series User Manual

12-13
12 Troubleshooting
NJ-series CPU Unit Software User’s Manual (W501)
12-2 Troubleshooting
12
12-2-2 Troubleshooting Flowchart for Non-fatal Errors
For a non-fatal error, use the Sysmac Studio or an NS-series PT to troubleshoot the error with the fol-
lowing flowchart. You can use the indicators to check the following:
• Level
• Whether the error is in the EtherNet/IP Function Module or the EtherCAT Master Function Module
• If the source of the error is the EtherNet/IP Function Module or the EtherCAT Master Function Mod-
ule, whether you can restore normal status yourself
The errors (i.e., events) that can occur in the PLC Function Module are given on the following pages.
Event levels are given as following in the tables:
Maj: Major fault level
Prt: Partial fault level
Min: Minor fault level
Obs: Observation
Info: Information
Refer to the NJ-series Troubleshooting Manual (Cat. No. W503) for all NJ-series event codes.
12-2-2 Troubleshooting Flowchart for Non-fatal Errors
12-2-3 Error Table
A
Lit.
Not lit.
Flashing.
Lit. Lit.
Flashing.
Flashing.
Check all of the following branches that correspond to the
status of the EtherNet/IP NET ERR and EtherCAT NET
ERR indicators.
EtherNet/IP NET ERR indicator is lit or flashing.
EtherCAT NET ERR indicator is
lit or flashing.
Major fault
level
Observa-
tion
Error in the
EtherNet/IP Function
Module for which you
cannot restore normal
status by yourself.
Error in the
EtherNet/IP Function
Module for which
you can restore
normal status by
yourself.
Error in the
EtherCAT Master
Function Module for
which you cannot
restore normal
status by yourself.
Error in the
EtherCAT Master
Function Module
for which you can
restore normal
status by yourself.
Error in PLC
Function Module or
MC Function
Module
Refer to the NJ-series Troubleshooting Manual (Cat. No. W503) for the procedures to check
for errors and corrections with the Sysmac Studio or an NS-series PT.
To immediately check the
specific error
Non-fatal error in CPU Unit
To check error status with the indicators
Both indicators are not lit.
Partial fault level
or minor fault level
ERROR indicator (red)?
EtherCAT NET ERR
indicator (red)?
EtherNet/IP NET ERR
indicator (red)?

Omron NJ Series Specifications

General

Brand	Omron
Model	NJ Series
Category	Controller
Language	English