ABB Relion 670 Series Technical Reference Manual page 979

1MRK505222-UUS C
15.9
15.9.1
15.9.2
Technical reference manual
Indications
Introduction
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 report function (triggered).
The Indication list function shows all selected binary input signals connected to the
Disturbance report function that have changed status during a disturbance.
Principle of operation
The LED indications display this information:
Green LED:
Steady light In Service
Flashing light Internal fail
Dark No power supply
Yellow LED:
Steady light A disturbance report is triggered
Flashing light The IED is in test mode or in configuration mode
Red LED:
Steady light Trigged on binary signal N with SetLEDN=On
Indication list:
The possible indication signals are the same as the ones chosen for the disturbance
report function and disturbance recorder.
Section 15
Monitoring
973