Omron NJ Series Troubleshooting Manual page 35

Operation in the Function Module Where an Error Event Occurred
Event level
Function
module
PLC Function
Module
Motion Control
Function Module
EtherCAT Master
Function Module
EtherNet/IP Func-
tion Module
I/O Operation for Major Fault Level Controller Errors
The following table gives the operation of the CPU Unit and the I/O devices for the following errors.
• Unsupported Unit Detected
• I/O Bus Check Error
• End Cover Missing
• Incorrect Unit/Expansion Rack Connection
• Duplicate Unit Number
• Too Many I/O Points
• I/O Setting Check Error
Unit
*1
EtherCAT slave
Servo Drives assigned to an axis
NJ-series Troubleshooting Manual (W503)
Major fault level Partial fault level
User program execution ---
stops.
All axes stop. (The stop All axes stop. (The
method depends on the stop method depends
error.) on the error.)
I/O refreshing for EtherCAT EtherCAT communi-
communications stops. (The cations stop. (The
slaves operate according to slaves operate
the settings in the slaves.) according to the set-
tings in the slaves.)
Part of the EtherNet/IP EtherNet/IP commu-
communications stop. nications stop. (A
(Online connections to the software connection
Sysmac Studio and commu- from the Sysmac Stu-
nications connections with dio or an NS-series
NS-series PTs are possible. PT is not possible.)
(Output (produce) tags in
the tag data links operate
according to the tag set set-
tings.)
CPU Unit operation
The slave is placed in the Safe-
Operational state.
Updating the command values is
stopped.
1 Overview of Errors
Minor fault level Observation
Operation continues.
• The affected • Axis operation
axes/axes group continues.
stops. (The stop
• The motion con-
method depends on
trol instruction is
the settings.)
not executed (for
• The motion control instructions not
instruction is not exe- related to axis
cuted (for instructions operation).
related to axis opera-
tion.)
I/O refreshing for Ether- I/O refreshing for
CAT communications EtherCAT commu-
stops or continues nications contin-
according to the fail-soft ues.
operation settings in the
master. (If I/O refreshing
stops, the slaves oper-
ate according to the set-
tings in the slaves.)
Part of the EtherNet/IP EtherNet/IP com-
communications stop. munications con-
(A software connection tinue.
from the Sysmac Studio
or an NS-series PT is
possible if the communi-
cations connection is
not the cause of the
error.)
Unit or slave operation
Depends on the slave settings.
All axes stop immediately.
1
*2
1-9