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Fig 22: Electronic module LED indicators D-NET
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LED Indicator
LED Indicator Condition
Description
Left LED
Steady RED
CLOSED indication switch made
“
Flashing RED
Output 1 de-energised, but Closed switch not made
“
Twink RED
Output 1 de-energised, and FTC* timer timed out, input not made
Center LED
Steady GREEN
OPEN indication switch made
“
Flashing GREEN
Output 1 energised, but Open input not made
“
Twink GREEN
Output 1 energised, and FTO* timer timed out, input not made
Right LED
Flashing AMBER
Device On-line but not being communicated with
“
Steady AMBER
Device On-line and communicating
“
Flashing RED
Device senses Bus voltage low
“
Steady RED
Device Bus-Off or Major Internal Fault
“
Flashing RED-AMBER-OFF
Node Beacon function
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