Omron NX1P2 series

6 Troubleshooting
6 - 12
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
For a non-fatal error, use the Sysmac Studio or an HMI to troubleshoot the error with the following flow-
chart. You can use the indicators to check the following:
• Level
• Whether the error is in the EtherNet/IP port or the EtherCAT port
• If the sources of the error is the EtherNet/IP port or the EtherCAT port, whether you can restore nor-
mal status yourself
Precautions for Correct UsePrecautions for Correct Use
Refer to the appendices of the NJ/NX-series Troubleshooting Manual (Cat. No. W503) for the
applicable range of the HMI Troubleshooter.
6-2-2 Troubleshooting Flowchart for Non-fatal Errors
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 port for
which you cannot
restore normal
status by yourself.
Error in the
EtherNet/IP port
for which you can
restore normal
status by yourself.
Error in the
EtherCAT port for
which you cannot
restore normal
status by
yourself.
Error in the
EtherCAT port
for which you
can restore
normal status by
yourself.
Error in PLC
Function
Module, NX Bus
Function
Module, or MC
Function Module
Refer to the NJ/NX-series Troubleshooting Manual (Cat. No. W503) for the procedures to
check for errors and corrections with the Sysmac Studio or an HMI.
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)?