Table 15:
Communication LEDs
LED
Communication ok
Uplink
Steady green light
Communication
Flashing yellow light
7.1.3.2
Checking the time synchronization
•
Check the time synchronization via LHMI in
Main Menu/Monitoring/IED
status/Time synchronization
.
7.1.4
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
and
.
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.
7.2
Indication messages
7.2.1
Internal faults
Internal fault indications have the highest priority on the LHMI. None
of the other LHMI indications can override the internal fault
indication.
An indication about the fault is shown as a message on the LHMI. The text
Internal Fault
with an additional text message, a code, date and time, is shown
to indicate the fault type.
Different actions are taken depending on the severity of the fault. The IED tries to
eliminate the fault by restarting. After the fault is found to be permanent, the IED
stays in internal fault mode. All other output contacts are released and locked for the
internal fault. The IED continues to perform internal tests during the fault situation.
The internal fault code indicates the type of internal IED fault. When a fault occurs,
document the code and state it when ordering the service.
Section 7
1MRS756708 A
Troubleshooting
82
615 series
Operation Manual
