28 NFS2-3030 Operations Manual — P/N 52546:N1 06/20//2014
Operation of the Control Panel System or Point Trouble Event
Figure 2.4 Sample Message for Point Trouble
2.3.2 How to Respond to a System or Point Trouble
If the control panel indicates a trouble, the operator can do the following:
1. Press the ACKNOWLEDGE
soft key to silence the panel sounder and switch the SYSTEM TROUBLE
LED from flashing to steady—regardless of the number of troubles, alarms, security and
supervisory signals.
The control panel sends an acknowledge message to the History buffer, installed printers and
annunciators.
2. Check the trouble message for an indication of the trouble.
• Refer to Table 2.1 or Table 2.2 below for point and system trouble explanations, if necessary.
• Press the MORE INFORMATION soft key to display the MORE INFORMATION screen and
view additional information on the device and possibly preprogrammed text for
recommended action. (Refer to Figure 1.8 on page 19 for an example of the this screen and
an explanation of its fields.)
3. Correct the condition causing the trouble. If the trouble clears, the control panel sends a Clear
Trouble message to the History buffer, installed printers and annunciators.
If all troubles clear and no supervisory signals or fire alarms exist, the control panel does the fol-
lowing:
• Returns to Normal operation (indicated by the “System Normal” message)
• Sends a “System Normal” message to the panel display, History buffer, installed printers and
annunciators
• Restores troubles automatically - even if troubles are not acknowledged
The soft key PROGRAM/ALTER STATUS is also displayed on this screen. A password is required
to enter these menus, which are described in this panel’s programming manual.
2.3.3 Trouble Types
There are a variety of point or system trouble types that may appear in the trouble message. The
tables below give lists of the troubles and indications of their cause.
Point (Device) Troubles
A message from the “Trouble Type” column in Table 2.1, “Point (Device) Troubles,” on page 29
will appear in the upper right corner of the panel display when a point (device) trouble occurs. Use
this table to help determine what the trouble is.
TROUBLE DETECTOR FAILED TEST
ELEVATOR LOBBY EAST WING
FIFTH FLOOR SMOKE(PHOTO)
11:58:45A TUE JAN 25, 2011 L01D136
EVENT COUNTS
FIRE ALARMS:000 PREALARM:000 TROUBLE:001
SUPERVISORY:000 SECURITY:000 DISABLE:000
11:59:35A TUE JAN 25, 2011
ACKNOWLEDGE SIGNAL SILENCE
MORE INFORMATION SYSTEM RESET
PROGRAM/ALTER STATUS MAIN MENU
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