First-Out Alarm Indication - ABB SACO 16D3 User Manual And Technical Description

First-out alarm
indication
26
The first-out alarm indication is a feature of the
annunciator unit which means that the first
alarm channel to start after a reset is indicated
Reset
Channel 1
Channel 2
Channel 3
Channel 16
Fig. 27. Principle of the first-out alarm indication.
The first-out alarm indication is removed from the display with the acknowledge/ reset push-
button.
with a letter A and the channel number in the
four-digit display.
First-out
alarm
memory
Not used
Type of event
A = incoming alarm
Channel number
1...16
Digital display