Functionality - ABB RELION 611 Series Technical Manual

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Basic functions

Functionality

The programmable LEDs reside on the right side of the display on the LHMI.

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Programmable LEDs on the right side of the display

All the programmable LEDs in the HMI of the protection relay have two colors, green

and red. For each LED, the different colors are individually controllable.

Each LED has two control inputs, ALARM and OK. The color setting is common for all

the LEDs. It is controlled with the Alarm colour setting, the default value being "Red".

The OK input corresponds to the color that is available, with the default value being

Changing the Alarm colour setting to "Green" changes the color behavior of the OK

inputs to red.

The ALARM input has a higher priority than the OK input.

1MRS757454 D

Phase unbalance

Thermal overload

AR sequence in progress

Disturb.rec.trigged

Trip circuit failure

Breaker failure

Technical Manual