Operation; 1: Alarm Response - Fire-Lite Alarms MS-5024UD Manual

Operation

4.3 Operation
Normal Mode is the standard mode of operation. In this mode, the control panel continuously monitors system status.
When no alarm or trouble conditions exist, the display will be blank and all LEDs will be off (except the AC Power
LED). The Notifications Appliance Circuits will be off, all relays and relay drivers are normal and the onboard piezo
sounder will be off. The communicator is not active, primary and secondary active LEDs are off.
All alarm and system trouble conditions are annunciated on the control panel's display. The control panel will main-
tain an 'active event list' which will consist of all alarms, supervisory alarms and system troubles currently active and
not cleared, requiring immediate service. When the system is cleared and restored to normal, the display will be
blank. All alarms and troubles are stored in a history file and may be recalled at any time.
Higher priority events take precedence over lower priority events. Display and reporting of system status is done on
a priority basis. Priorities are, from highest to lowest:
Alarms
1.
Supervisory Alarms
2.
System Troubles
3.
If the events to be displayed consist only of alarms and disabled zones (no troubles), the control panel will scroll them
on the display. Pressing the 1st Event key will stop the scrolling and cause the display of the first alarm that occurred
after the panel was last reset, cleared of all active events and placed into Normal Mode. Operation of the Up and
Down arrow keys will display all remaining events in sequence.
If events to be displayed include system troubles, only one event is displayed at a time and there is no scrolling. The
event displayed is the highest priority. Pressing the 1st Event key will cause the display of the first event that
occurred after the panel was last reset, cleared of all active events and placed into Normal Mode. Operation of the Up
and Down arrow keys will display all remaining events in order of their occurrences.
4.3.1 Alarm Response
Upon detection of an alarm condition, the control panel will:
✓
Turn the alarm LED on
✓
Activate the alarm relay
✓
Display the alarm message (i.e. A__1 for alarm on zone 1)
✓
Communicate the alarm to the Central Station
✓
Store the alarm in the History file
✓
Turn the NACs on
✓
Turn the piezo sounder on
✓
Turn on appropriate zone relay output
✓
Output alarm message to printer
✓
Terminate upload or download communications
Note that when any zone is programmed as a supervisory zone, it will not be processed in the same manner as a con-
ventional alarm zone. See Supervisory Condition later in this section.
Document #15140 Rev.G 01/02/02 P/N 15140:G
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