Toshiba nv Series Instruction Manual page 56

Chapter 5 Troubleshooting
If the state display LED of the product displays anything different from the normal
display as described in "Table 1-1 Display details on the state display LED and
normal display" on page 5, or if any error is detected in the human interface station,
stop using it immediately and contact one of Toshiba's service representatives.
Fault diagnosis method using the LEDs
Perform diagnosis by referring to the following table.
State name
RUN
Normal ON
operation
Down OFF
Loading the RAS data and system log
To load the RAS data and system log, refer to "Unified Controller nv series /
Integrated Controller V series Engineering Tool 4 (Basic) Instruction Manual
(6E8C4890)."
When loading fails during serial communication
Load them again. Logs related to serial communication may be traced.
When an error occurs
Load the RAS data and system log before removing the module from the basic
unit.
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6F8C1375
Table 5-1 Diagnosis using the LEDs
LED display
ERR I/O FLN LNT
OFF ON ON ON
ON
－ － －
State
SCN
Blinking Normal
Module error
－
Remedy
Contact one of
Toshiba's service
representatives to
replace the module.