Checking For Non-Fatal Errors - Omron NJ Series Troubleshooting Manual

1 Overview of Errors
_MC_AX[0..63].Obsr.Code
_MC_GRP[0..31].MFaultLvl.Code
_MC_GRP[0..31].Obsr.Code
For descriptions of the error codes for the Motion Control Function Module or basic instructions,
refer to the descriptions of the corresponding event codes. Refer to the NJ-series CPU Unit
Motion Control User's Manual (Cat. No. W507) and NJ-series Motion Control Instructions Refer-
ence Manual (Cat. No. W508) for error information on the Motion Control Function Module, and to
the NJ-series Instructions Reference Manual (Cat. No. W502) for error information on basic
instructions. For error information on a CJ-series Special Unit, refer to the manual for the relevant
Unit. For the corresponding event codes, refer to the descriptions of the error codes.
 Exporting the Error Log
You can use the Sysmac Studio or an NS-series PT to export the displayed event log to a CSV file.
Refer to the NJ-series CPU Unit Software User's Manual (Cat. No. W501) for information on export-
ing event logs
1-3-2

Checking for Non-fatal Errors

Checking Methods
Use the following methods to check for non-fatal errors.
Checking method
Checking the indicators
Checking with the Troubleshooting
Function of Sysmac Studio
Checking with the Troubleshooter of
an NS-series PT
Instructions that read function mod-
ule error status
Checking with system-defined vari-
ables
*1 Detailed information, such as error causes and corrections, is not displayed.
*2 To perform troubleshooting from an NS-series PT, connect the PT to the built-in EtherNet/IP port on the CPU
Unit.
This section describes the above checking methods.
Checking the Indicators
 Checking the Level of a Controller Error
You can use the PWR indicator on the Power Supply Unit and the RUN and ERROR indicators on
the CPU Unit to determine the level of an error. The following table shows the relationship between
the Controller's indicators and the event level.
PWR (green)
Lit
Lit
1-12
Variable
What you can check
You can use the indicators to confirm the Controller error level, the error
status of the EtherCAT Master Function Module, and the error status of
the EtherNet/IP Function Module.
You can check for current Controller errors, a log of past Controller errors,
error sources, error causes, and corrections. You can also check error
logs from CJ-series Special Units.
You can check for current Controller errors, a log of past Controller errors,
*2 error sources, error causes, and corrections.
You can check the highest-level status and highest-level event code in the
current Controller errors.
You can check the current Controller error status for each function mod-
ule.
Indicators
RUN (green)
Not lit
Lit
Name
Axis Observation Code
Axes Group Minor Fault Code
Axes Group Observation Code
*1
ERROR (red)
Lit
Flashing
(1-s intervals).
NJ-series Troubleshooting Manual (W503)
Event level
Major fault level
Partial fault level
Minor fault level