5-7
5 Troubleshooting
NJ-series CPU Unit Hardware User’s Manual (W500)
5-1 Operation after an Error
5
5-1-3 Non-fatal error in CPU Unit
*1 Excluding Servo Drives assigned to an axis.
*2 Settings and setting methods depend on the slave. Refer to the manual for the slave. For a Servo Drive, oper-
ation depends on the setting of object 605E hex (Fault Reaction Option Code).
*3 You can set whether to clear output or maintain the data from before the error occurred. Refer to the NJ/NX-
series CPU Unit Built-in EtherNet/IP Port User’s Manual (Cat. No. W506) for details.
The following table gives the operation of the CPU Unit and the I/O devices for the errors that are not
listed above.
*1 Excluding Servo Drives assigned to an axis.
*2 Settings and setting methods depend on the slave. Refer to the manual for the slave. For a Servo Drive, oper-
ation depends on the setting of object 605E hex (Fault Reaction Option Code).
*3 You can set whether to clear output or maintain the data from before the error occurred. Refer to the NJ/NX-
series CPU Unit Built-in EtherNet/IP Port User’s Manual (Cat. No. W506) for details.
CJ-series Basic I/O Unit Refreshing is stopped. • All outputs are turned OFF.
• All inputs are turned OFF.
CJ-series Special Unit Refreshing is stopped. Depends on the Unit operating
specifications (the ERH indicator
lights).
Devices connected with EtherNet/IP • For the originators of tag data
links, the variables and I/O mem-
ory addresses for input (con-
sume) tags are not refreshed.
• For the targets of tag data links,
operation depends on the set-
tings of the tags sets for the out-
put (produce) tags.
*3
Depends on the specifications of
the connected devices.
Unit CPU Unit operation Unit or slave operation
NX-series Slave Terminal The NX-series Slave Terminal
moves to Safe-Operational state.
Depends on the NX Unit settings.
EtherCAT slave
*1
The slave is placed in the Safe-
Operational state.
Depends on the slave settings.
*2
Servo Drive or NX Unit assigned to
an axis
Updating the command values is
stopped.
All axes stop immediately.
CJ-series Basic I/O Unit • The values of all outputs are
cleared to zero.
• Input refreshing continues.
• All outputs are turned OFF.
• External inputs are refreshed.
CJ-series Special Unit Refreshing continues. Depends on the Unit operating
specifications.
Devices connected with EtherNet/IP • For the originators of tag data
links, the variables and I/O mem-
ory addresses for input (con-
sume) tags are not refreshed.
• For the targets of tag data links,
operation depends on the set-
tings of the tags sets for the out-
put (produce) tags.
*3
Depends on the specifications of
the connected devices.
Unit CPU Unit operation Unit or slave operation
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