20. ALERTS
20-5
20.3 How to Temporarily Silence the Buzzer for an
Alarm or Warning
When the buzzer for an Emergency, Alarm or Warning sounds, you can temporarily
silence it by clicking the [Silence] button in the [Alert] list.
The buzzer stops, however, the alert message remains in the [Alert] box and [Alert]
list until acknowledged and rectified.
20.4 How to Acknowledge an Alarm or Warning
When an alarm or warning is generated, the buzzer sounds and the name of the alert
appears and flashes in the [Alert] box and [Alert] list. To acknowledge the alert, do one
of the following:
• Operate the ALARM ACK key on a Control Unit.
• In the [Alert] box, click the alert name (non-aggregate only).
• In the [Alert] list, click the alert name or click the [ACK] button. For an aggregate
alert, click the [ACK] button in the [Aggregation] window.
When acknowledged, the buzzer stops and the flashing of the alert name stops. The
state of the alert changes and the alert priority changes as shown below
Category of alert and place of alert acknowledgement
The place of alert acknowledgement depends on the category of the alert.
Category Where the alert is generated
Place of alert
acknowledgement
A Equipment that generated the alert. Equipment that generated the alert.
B Equipment and AMS* (Alert Management
System) *No use
Equipment that generated the alert or AMS.
C IAS (Integrated Automation System) gen-
erated engine alert
–
High
Not acknowledged, Not rectified
Low
Not acknowledged, Not rectified
Not acknowledged, Rectified
Not acknowledged, Rectified
Acknowledged, Not rectified
Acknowledged, Not rectified
Not rectified
Emergency, Alarm
Warning
Warning
Warning
Caution
Emergency, Alarm
Emergency, Alarm
Priority No. Priority of Alert Alert state
1
2
3
4
5
6
7
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