Indications - ABB Relion Technical Manual

Section 14
Monitoring
14.5
14.5.1
14.5.2
14.5.3
14.5.3.1
14.5.4
576

Indications

Functionality
To get fast, condensed and reliable information about disturbances in the primary and/or
in the secondary system it is important to know, for example binary signals that have
changed status during a disturbance. This information is used in the short perspective to
get information via the local HMI in a straightforward way.
There are three LEDs on the local HMI (green, yellow and red), which will display status
information about the IED and the Disturbance recorder function (triggered).
The Indication list function shows all selected binary input signals connected to the
Disturbance recorder function that have changed status during a disturbance.
Function block
The Indications function has no function block of it's own.
Signals
Input signals
The Indications function logs the same binary input signals as the Disturbance report
function.
Operation principle
The LED indications display this information:
Green LED:
Steady light In Service
Flashing light Internal fail
Dark No power supply
Yellow LED:
Function controlled by SetLEDn setting in Disturbance report function.
Red LED:
1MRK 502 048-UUS A
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