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NFS2-640/E Operations Manual —
P/N 52743:F1 06/16/2011
Operation of the Control Panel
Fire Alarm Mode of Operation
•
To silence the panel sounder and any activated outputs that are programmed as silenceable:
Press the
SIGNAL
SILENCE
key. The
FIRE
ALARM
LED and
SIGNALS
SILENCED
LED light steady.
The control panel sends an Signal Silenced message to the remote annunciators, history buffer,
installed printers, and CRT-2s. The figure below shows a sample Alarm Silenced message.
Figure 3.3 Sample Alarm Silenced Message
1.
Check the Alarm message for the location and type of trouble.
2.
Correct the condition causing the alarm.
3.
When you finish correcting the alarm condition, press the
SYSTEM
RESET
key to return the
control panel to normal operation (indicated by the “System Normal” message). The control
panel sends a “System Normal” message to the LCD display, History buffer and installed
printers, FDU-80 annunciators, and CRT-2s.
3.3.3 Interpreting Fire Alarm Type Codes
The Type Code that displays in the Alarm message indicates the function of the point that initiates
the fire alarm. For example, a monitor module with a
PULL
STATION
Type Code means that the
monitor module connects to a manual pull station. The table below lists the Type Codes that can
appear in an alarm message:
Status banner
Time and date of the
Alarm Silenced
S I G N A L S S I L E N C E D
0 3 : 1 2 P 0 4 1 5 0 8 T u e
Type Code
Latching
(Y/N)
Purpose
What it does
Monitor Modules
Blank
Y
Indicates activation of a device with no description
Lights
FIRE
ALARM
LED and activates CBE
HEAT DETECT
Y
Indicates activation of a conventional heat detector
Lights
FIRE
ALARM
LED and activates CBE
MONITOR
Y
Indicates activation of an alarm-monitoring device
Lights
FIRE
ALARM
LED and activates CBE
PULL STATION
Y
Indicates activation of a manual fire-alarm-activating
device, such as a pull station.
Lights
FIRE
ALARM
LED and activates CBE
RF MON MODUL
Y
Indicates activation of a wireless alarm-monitoring device Lights
FIRE
ALARM
LED and activates CBE
RF PULL STA
Y
Indicates activation of a wireless manual fire-alarm-
activating device, such as a pull station
Lights
FIRE
ALARM
LED and activates CBE
SMOKE CONVEN
Y
Indicates activation of a conventional smoke detector
attached to an FZM-1
Lights
FIRE
ALARM
LED and activates CBE
SMOKE DETECT
Y
Indicates activation of a conventional smoke detector
attached to an FZM-1
Lights
FIRE
ALARM
LED and activates CBE
WATERFLOW
Y
Indicates activation a waterflow alarm switch
Lights
FIRE
ALARM
LED and activates CBE
EVACUATE SW
N
Performs Drill function.
Activates all silenceable outputs
MAN. RELEASE
Y
Indicates activation of a monitor module programmed to a
releasing zone to perform a releasing function.
Lights
FIRE
ALARM
LED and activates CBE
MANREL DELAY
Y
Indicates activation of a monitor module programmed for
a release output
Lights
FIRE
ALARM
LED and activates CBE
SECOND SHOT
N
Provides second activation of releasing zone after soak
timer has expired.
Indicates ACTIVE and activates CBE
CO MONITOR*
Y
Indicates activation of a CO conventional detector
Activates CBE, does not light an indicator
at the control panel.
Detectors
Table 3.1 Fire Alarm Type Codes (1 of 2)
