Leds - ABB Relion Technical Manual

1MRK 502 048-UUS A
5.5.1.2
5.5.1.3
Technical manual
GUID-D20BB1F1-FDF7-49AD-9980-F91A38B2107D V1 EN
Figure 11: Alarm LED panel
The function button and alarm LED panels are not visible at the same time. Each panel is
shown by pressing one of the function buttons or the Multipage button. Pressing the ESC
button clears the panel from the display. Both the panels have dynamic width that depends
on the label string length that the panel contains.

LEDs

The LHMI includes three protection status LEDs above the display: Normal, Pickup and
Trip.
There are 15 programmable alarm LEDs on the front of the LHMI. Each LED can indicate
three states with the colors: green, yellow and red. The alarm texts related to each three-
color LED are divided into three pages.
There are 3 separate pages of LEDs available. The 15 physical three-color LEDs in one
LED group can indicate 45 different signals. Altogether, 135 signals can be indicated
since there are three LED groups. The LEDs can be configured with PCM600 and the
operation mode can be selected with the LHMI or PCM600.
There are two additional LEDs which are embedded into the control buttons
They represent the status of the circuit breaker.
Keypad
The LHMI keypad contains push-buttons which are used to navigate in different views or
menus. The push-buttons are also used to acknowledge alarms, reset indications, provide
help and switch between local and remote control mode.
Local Human-Machine-Interface LHMI
Section 5
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