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Alarm Operation
Pressing the Acknowledge/Step or Alarm Silence key will cause the pulsing piezo to silence and the
system Trouble indicator to change from flashing to on steady. This block acknowledgment occurs
regardless of the number of troubles, alarms and supervisory events active in the system. When the
Acknowledge/Step key is pressed and at least one new alarm or trouble exists in the system, the
'acknowledge' message is sent to the printer and history file. If the trouble clears, either before or
after the Acknowledge/Step key is pressed, the 'clear trouble' message is sent to the printer and
history file.
If all troubles clear and there are no supervisory or fire conditions active in the system, the system
returns to normal mode operation and the System All Normal message is shown on the LCD display
and sent to the history and printer files. The auto-restore feature will restore cleared troubles even if
the troubles were never acknowledged. Note that pressing the Alarm Silence key when only
troubles exist in the system will have the same effect as pressing the Acknowledge/Step key except
the Alarm Silenced indicator will light.
4.5 Alarm Operation
For a detailed description of the alarm operation for each preprogrammed Template, refer to "FACP
Configuration Templates" on page 96 and "Circuit Mapping and Cross-Zoning" on page 91. Alarm
operation is similar to trouble operation with the following differences:
•
The piezo sounder produces a steady output as opposed to a pulsed output
•
The Fire Alarm indicator flashes 1 second On and 1 second Off
•
The LCD displays Alarm along with the device name, type, adjective/noun, associated zones
and time/date
•
Alarms latch and are not allowed to clear automatically
•
Timers for Silence Inhibit, Autosilence and Trouble Reminder are started
•
Soak and Waterflow Delay Timers are started (if enabled) for appropriate circuits
•
Alarms activate the general alarm relay
•
Silenced alarms are resounded
•
Release Solenoid circuits are activated to produce a water release
•
The trouble relay is not activated
•
Store event in history buffer
A typical alarm display would be as illustrated below:
Note that the device type, which in this example is PULL STATION, can be any other
programmable alarm type.
The information displayed in the above example provides the following information:
•
First line in display:
The type of event; in this example ALARM indicating an alarm condition
Device type identifier; in this example, PULL STATION indicates a manual pull box. Other
device type identifiers which can be displayed include 2-WIRE SMOKE for Smoke
Detector, 2-WIRE HEAT for Heat Detector, etc.
•
Second line in display:
<ADJ>; refers to the user programmed adjective descriptor from library list resident in the
control panel or custom entry via PC.
<NOUN>; refers to the user programmed noun descriptor from library list resident in the
control panel or custom entry via PC.
MRP-2001 Series Manual — P/N 53040:H 1/26/2017
ALARM
PULL STATION
<ADJ> <NOUN>
ZONE 1
10:00A 091814
Operating Instructions
79
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