CHAPTER 7 COUNTERMEASURE FOR ABNORMALITY
22
7.4 LED display and Countermeasure
Following states are indicated by three LED's.
LED
Color
Function
Countermeasure
Green
Power on and CPU running
−
Red flashing
Flash or RAM error
−
Power/
Status
Red
Hardware error(if flashing red
together with Serial Status
LED, Wink command has been
received) or during initializing
inverter data.
Need to change the SJ-LW.
(Back to green after initializing data)
Unlit
Neuron Chip is
Configured/Normal Run mode
−
Flash Green
1Hz
Neuron Chip is Unconfigured
(No Network configuration)
Confirm system setting and adjust
adequate.
LonWorks
Service
Green
Neuron Chip is Applicationless,
Unrecoverable fault
Need to change the SJ-LW.
Green
Serial channel status OK.
−
Flash Red
1Hz
Serial communication error.
Confirm cable length and connection fails
of connector. And then adjust adequate.
Serial
channel
status
Red
No serial communication. (If
flashing red together with
Power/Status LED, Wink
command has been received)
Confirm cable length and connection fails
of connector. And then adjust adequate.