Trouble Details Checks - Toshiba nv Series Instruction Manual

Chapter 7 Troubleshooting
7.2

Trouble Details Checks

You can use the controller status display LED and nV-Tool log information about the
controller in order to check the trouble occurring in the controller.
■ Checks with the controller module's controller status display LEDs
When the RUN or ERR LED of the controller front panel remains stopped in one of the
cases listed in Table 7-1, this indicates that an error has occurred. RUN or ERR LED
indication shows the error details.
RUN or ERR LED blinks every time.
ERR LED blinks once →
RUN or ERR LED blinks more once.
ERR LED blinks twice →
RUN or ERR LED blinks more once.
ERR LED blinks three times →
RUN or ERR LED blinks more once.
ERR LED blinks four times →
RUN or ERR LED blinks more once.
ERR LED blinks five times →
RUN or ERR LED blinks more once.
ERROR LED lights up.
■ Checks with the nV-Tool error logs
Error log appears according to the following procedures, which assumes that an external
power failure of the I/O module occurred during operation:
72
6F8C1575
Table 7-1 LED indication and error details
RUN or ERR LED
Connect the controller and nV-Tool using an Ethernet cable.
Start nV-Tool.
From the nV-Tool product tree, select the system and station you want to
view.
Error
CPU computation error
Boot are an error
OS program RAM error
OS work RAM error
FROM ID error
OS program BCC error
Error down
Action
Power off the controller
unit and then turn it on
again. If the failure still
remains, replace the
controller module.
Use nV-Tool to check the
failure condition.