Operator's Manual

25. ALERT MANAGEMENT SYSTEM (option)

25-6

25.8 Change of Priority for Unacknowledged Warning

IMO MSC302(87) requires that a Warning be changed to an Alarm if it is not acknowl-

edged within 60 seconds. The change of priority feature is enabled or disabled during

the installation.

25.9 How to Temporarily Silence the Buzzer

The FMD-3xx0 series and the FCR-2xx9 series are compliant with IEC 61924-2, which

has a provision to allow the temporary silencing of the buzzer for 30 seconds against

any alert, from the equipment that generated the alert or from the AMS. The buzzer

again sounds after 30 seconds if the alert is not acknowledged.

How category A alerts are treated at the AMS

The buzzer given against a category A alert can be temporarily silenced at the AMS,

by clicking the alert on any AMS mode window (see section 25.13.2) or pushing the

ALARM ACK key on a Control Unit. However, the alert must be acknowledged from

the equipment that generated the alert. The AMS indicates acknowledgement after

the alert is acknowledged at the equipment.

25.10 Buzzer Patterns

The AMS has two buzzer patterns, legacy and IEC 61924-2, and one is chosen at in-

stallation.

Legacy buzzer pattern

This buzzer sounds continuously until an emergency/alarm or warning is acknowl-

edged.

seconds

Not acknowledged

A Warning

is generated.

The Warning becomes an Alarm and

is then transferred to the BNWAS.

Acknowledge

The buzzer sounds continuously.

Emergency/Alarm or

Warning generated