Honeywell GF505 Manual Download Page 87

Page: 87 / 124

Trouble Operation

Operating Instructions

The FACP performs the following functions at regular intervals in Normal mode:



Monitors AC input voltage and battery voltage



Monitors and reports status option cards and control panel



Refreshes LCD display and updates time



Scans control panel keypad for key presses



Tests memory



Updates and reads all communications busses (EIA-485, etc.)



smoke detectors will be polled for maintenance and freeze conditions on initial entry into Normal mode. Thereafter, each

device will be polled every hour for freeze and every four hours for maintenance conditions

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, adjective/noun, address and trouble description will appear on the LCD display

•

The same message, along with the time and date, is sent to the optional printer and the history buffer.

•

Communicate the trouble conditions to the Central Station

•

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, etc.

Input Zone

For Input Zones, 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

OPEN

indicating a circuit trouble

– Device type identifier; in this example,

PULL STATION

indicates a manual device. Other device type identifiers which can be

displayed include

SMOKE

for Smoke Detector,

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.

•

Third line in display indicates Zone and the fault condition. Other possible troubles include:



OPEN

- indicating an open circuit



DIRTY

- maintenance alert indicating that an i

detector is near but below the allowed alarm limit and is in need of maintenance

before the performance is compromised

•

Fourth line in display:
– Time; the current time in this example is

10:00A

which represents 10:00 AM

– Date; the current month, day and year in this example is

for June,

for the 9th day of the month and

for the year 2018

Pressing the

Acknowledge/Step

Alarm Silence

key will cause the pulsing piezo to silence and the system Trouble LED 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 LED will light.

4.5 Alarm Operation

Alarm operation is similar to trouble operation with the following differences:
•

The piezo sounder produces a steady output as opposed to a pulsed output