Troubleshooting; Troubleshooting Procedure - Mitsubishi Electric MELSEC iQ-R Series User Manual

6.14

Troubleshooting

This section explains the contents, causes, and corrective actions of various error which may occur during the system use.
For module-specific troubleshooting, refer to the manual for respective modules.
In case of error occurrence, saving a user program or device status, etc. will be useful for clarifying the factors
of the error.
CW Configurator Operating Manual

Troubleshooting procedure

1.
Check the LED on the power supply module.
(MELSEC iQ-R C Controller Module User's Manual (Application))
2.
Check the LED on the C Controller module.
(MELSEC iQ-R C Controller Module User's Manual (Application))
3.
Check the LED on each I/O module or intelligent function module. ( User's manual for respective modules
(Application))
4.
Connect CW Configurator, and start the system monitor function. The module which causes error can be checked.
(Page 57 System monitor)
5.
Select the module causing the error, and start the Module Diagnostic function. The cause and corrective actions can be
checked. (Page 58 Module diagnostics)
6.
If the cause cannot be identified by the Module Diagnostic function, check the operation or error logs with CW
Configurator to identify the causes. (Page 59 Event history)
7.
If the cause still cannot be identified by the step 1 to 6, perform the troubleshooting by symptom. ( User's manual for
respective modules (Application))
6 PROCEDURE BEFORE OPERATION
56
6.14 Troubleshooting