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Operating Instructions
4.4 Trouble Operation
With no alarms in the system, the detection of a trouble will cause the following:
•
The piezo to pulse 1 second On and 1 second Off
•
The system Trouble LED to flash one second On and one second Off
•
The trouble relay to activate
•
TROUBL with device type, noun/adjective, address and trouble description will appear on the
LCD display
•
The same message, along with the time and date, is sent to the history buffer and optional
printer
•
Terminate upload or download communications
Note that specific troubles will initiate additional actions; for example, loss of AC power will turn
off the AC Power LED, a ground fault will turn on the Ground LED, etc.
Addressable Smoke Detectors, Monitor Modules and Control Modules
For addressable devices connected to the SLC loop, the following is a typical message that could
appear on the LCD display for a device trouble:
The information displayed in the above example provides the following information:
•
First line in display:
– The type of event; in this example TROUBL indicating a device trouble
– Device type identifier; in this example, SMOKE (PHOTO) indicates a Photoelectric smoke
detector. Other device type identifiers which can be displayed include SMOKE (ION) for
Ionization Detector, HEAT for Heat Detector, CONTROL for Control Module and
MONITOR for Monitor Module, PULL STATION for a manual pull box, etc. Refer to "Edit
Detector" on page 69, "Edit Module Screen for Monitor Module" on page 79, and "Edit
Module Screen for Control Modules" on page 88 for information on additional device types.
•
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.
•
Third line in display: INVREP indicates an invalid reply from the addressable device. Other
possible troubles include:
SHORT - indicating a shorted circuit on an addressable device
OPEN - indicating an open circuit on an addressable device
DIRTY1 - maintenance alert indicating that a detector is near but below the allowed alarm
limit and is in need of maintenance before the performance is compromised
DIRTY2 - maintenance alert indicating that a detector needs immediate maintenance since it
has been within 80% of its alarm threshold for 24 hours
INVREP - maintenance alert indicating a hardware problem in the detector
TEST F - indicating a detector has failed the automatic test operation which functionally
checks its sensing chamber and electronics
152
TROUBL SMOKE (PHOTO)
<ADJ> <NOUN>
INVREP
10:00A 010810 1D001
MS-9600LS Series Manual — P/N 52646:B2 2/12/2010
Trouble Operation
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