Identifying Communication Errors; Checking Communication Leds; Running The Display Test; Indication Messages - ABB RED615 Operation Manual

Section 7
Troubleshooting
7.1.3
7.1.4
7.1.5
7.2
7.2.1
78

Identifying communication errors

Communication errors are normally communication interruptions or synchronization
message errors due to communication link breakdown.
1. Check the operation of the communication link.
2. Check the time synchronization. On the LHMI, this can be done by navigating
from Main Menu/Monitoring/IED status/Time synchronization.
3. In case of persistent faults originating from IED's internal faults such as
component breakdown, contact ABB for repair or replacement actions.

Checking communication LEDs

There are two LEDs on the LHMI above the RJ-45 communication port.
• To verify communication, check that both LEDs are lit.
Table 15: Communication LEDs
LED
Uplink
Communication

Running the display test

A short display test is always run, when auxiliary voltage is connected to the IED.
You can also run the display test manually.
•
Press simultaneously
The LEDs are tested by turning them on simultaneously. The LCD shows a set
of patterns so that all the pixels are activated. After the test, the display returns
to normal state.

Indication messages

Internal faults

Internal fault indications have the highest priority on the LHMI. None
of the other LHMI indications can override the internal fault
indication.
Communication ok
Steady green light
Blinking yellow light
and .
1MRS756499 A
RED615
Operation Manual