![background image](http://html.mh-extra.com/html/mircom/fx-350-series/fx-350-series_installation-and-operation-manual_1805769039.webp)
FX-350 Series Installation and Operation Manual
39
• If the panel is not already in General Alarm and if the Acknowledge LED is ON steady indicating that the Auto
General Alarm timer has been Acknowledged the timer is restarted and the Acknowledge LED is extinguished.
A second stage alarm (general alarm) when the panel is already in alarm causes the following:
• The buzzer sounds steadily.
• All non-disconnected signals are activated at the evacuation rate.
• If the Signal Silence LED is ON, it turns OFF and the Auto Signal Silence timer, if configured, is restarted.
• The Acknowledge LED if ON, turns OFF.
Alarm inputs are latching, they remain active until system reset
Positive Alarm Sequence
In a Positive Alarm Sequence (PAS) system, only smoke detectors can be dedicated as PAS inputs. PAS Inputs can
only be from the following types of circuits: non-verified alarm and verified alarm. Any of these alarm inputs
occurring when the panel is not already in alarm cause the following:
• The buzzer sounds steadily.
• If fire drill is active, it is cancelled.
• The Common Alarm LED turns ON
• The individual zone LED (if programmed) turns ON.
• The Common Alarm relay does not activate.
• The PAS timer starts for 15 seconds.
• All outputs programmed to the input are not activated.
When the PAS alarm has been acknowledged within 15 seconds, the following sequence occurs:
• The buzzer is silenced.
• The Common Alarm LED stays ON.
• The individual zone LED (if programmed) stays ON.
• The PAS timer starts for 180 seconds (3 minutes). This is the time allotted to reset the system and avoid any
true alarm sequence.
When the PAS alarm has been acknowledged and the system reset (and there are no new alarms), within the given
time limits, the following occurs:
• The buzzer stays silenced.
• The Common Alarm LED turns OFF.
• The individual zone LED (if programmed) turns OFF.
• The alarm event is cancelled. No log reference.
• The fire alarm system returns to normal.
If at any time during the Positive Alarm Sequence a second alarm (PAS or otherwise) is actuated, the fire alarm will
go into evacuation mode. In a preconfigured FACP the Positive Alarm Sequence may be enabled or disabled as the
user requires.
Enabling or Disabling the Positive Alarm Sequence
• To enable or disable the Positive Alarm Sequence, from the Keypad of the FACP press “M” to enter the
Menu
• Using the Up and Down Arrow buttons, scroll to “Operation” and press the enter key
• In the
Operation Menu
scroll to “Positive Alarm” and press enter
Note:
All circuits with process type designated as “signal” are automatically correlated to the “fire drill” and
“general alarm” status.
Содержание FX-350 Series
Страница 2: ......
Страница 6: ...List of Figures Tables vi ...
Страница 57: ......
Страница 58: ......
Страница 59: ......