Toshiba nv Series Instruction Manual page 58

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 on the state display LED and normal
display" on page 4, 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.
Normal
operation
Down
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 Operation Manual
(6F8C1290)."
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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6F8C1358
Table 5-1 Diagnosis using the LEDs
LED display
State
name
RUN HLTH
ON ON
OFF OFF
State
ERR L-A
OFF Blinking or Normal
ON
ON Module
－
error
Remedy
－
Replace the module.
Contact one of Toshiba's
service representatives.