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3-2.5.4.5
Figure 3-14. Message After All Alarm-Off Reports are Acknowledged
3-2.5.4.6
3-2.5.4.7
Figure 3-15. Alarm Events Buffer Full Message for New Alarm Event
August 2013
What to Do When an Alarm-Off Message is Displayed
Press the <ACKNOWLEDGE> Key to change the Alarm LED from flashing
to steady and to silence the internal buzzer.
It will be necessary to press the <ACKNOWLEDGE> Key once for each
alarm off report if multiple unacknowledged Alarm Off events are present.
All Alarm Off acknowledgments are logged. Each corresponding Alarm On
message will be removed from the list of active, manually scrolled alarm
messages after its Alarm Off message is acknowledged.
The display will show the following message if all the alarm devices are
configured for non-latching operation, each activated alarm device has
transmitted an Alarm Off message that has been acknowledged and no
releases are being reported.
NO ACTIVE ALARMS REMAIN
PRESS RESET TO RETURN TO NORMAL
The system will then resume normal latching-alarm-event annunciation.
You may manually scroll through the list of active and acknowledged
latching-alarm-initiating devices using the <SCROLL> Key if both latching
and non-latching alarm reports have been received. They will be displayed
using the format of Figure 3-10. A summary of the number of active
latching alarm events will be displayed as shown in Figure 3-11 at the
conclusion of each manual scroll cycle.
When to Use Non-Latching Initiating Devices
Use non-latching alarm-initiating devices to prevent an inadvertent
release of an extinguishing system as the result of a transitory event that
can mimic a fire signature such as an air-conditioning-system leak or the
initial start-up of a heating system in the fall. The real or mimicked fire
signatures that trigger a countdown to release for an extinguishing system
must be present for the entire countdown-delay period in order to release
the extinguishing system when non-latching alarm-initiating devices are
used. The extinguishing-system release will be aborted if a non-latching
device reports an Alarm Off message prior to the expiration of the
countdown timer.
Alarm Display Limitation
The ARIES Control Unit can display a maximum of 64 active alarm
messages by manually scrolling through them. All alarms in excess of 64
will be processed by the Control Unit even though they are not displayed,
and all outputs will be activated as programmed in the Control Unit's
application program.
The LCD will display the following message if a new alarm report is
received and the alarm-display limitation has been exceeded:
MORE THAN 64 ALARMS
PRESS SCROLL TO VIEW
3-102
P/N 06-236530-001
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