The Three Status Led's; General - ABB REG316 4 Series Operating Instructions Manual

ABB Switzerland Ltd
5.13.4.

The three status LED's

5.13.4.1.

General

A RE.316*4 unit can be in different statuses, the most important
of which are indicated by the three LED's on the LDU. They have
the colours green, yellow and red and each can be either off,
flashing or continuously lit.
In the diagrams below, the LED's are represented by squares.
An empty square indicates that the respective LED is off, a black
square that it is lit and a diagonally half black, half empty square
that it is flashing.
= lit
The three LED's are described on the first line of the entry menu.
green
Activ Start Trip
ABB REC316*4
Fig. 5.81
5.13.4.2. Starting RE.316*4
The yellow and green LED's flash throughout the initialisation
procedure to indicate that the device is not operational. The
green LED in the row of LED's at the top left of the device
flashes as well.
Fig. 5.82
5-106
= flashing
yellow red
LED markings
green yellow
LED statuses when starting the RE.316*4
REG 316*4 1MRB520049-Uen / Rev. E
= off
red