Fire-Lite Alarms MS-9200UD, Manual

Page: 138 / 192

Operating Instructions Positive Alarm Sequence
138 MS-9200UD PN 51906:A 12/10/02
4.19 Positive Alarm Sequence
PAS (Positive Alarm Sequence) option will program an initiating device to delay panel activation
(including alarm relay and communicator) for a period of 15 seconds. Zone 97, however, will
activate immediately and may be used to connect a signaling device to indicate PAS activation.
Do
not assign Zone 97 to a Notification Appliance Circuit when using this zone to indicate a PAS
condition.
When a detector or monitor module triggers an alarm, the onboard piezo sounds immediately, but
the NACs are prevented from activating for 15 seconds. This inhibit time is factory set and cannot
be changed. Pressing the Alarm Silence or Acknowledge/Step key during the 15 second inhibit
time will silence the piezo sounder and start a timer which prevents activation of NACs for an
additional time duration which can be user programmed for up to three minutes. After the
programmed delay, the NACs will activate if the source of the alarm is not cleared. Note that if a
second alarm occurs during either time delay, the alarm will be processed immediately, causing
activation of the appropriate output zones. The events which occur upon PAS activation are as
follows:
✓
onboard piezo sounds immediately
✓
control panel LCD display will indicate a presignal event and the active point
✓
control points programmed to Zone 97 will activate
✓
annunciators (if enabled) will sound the local piezo, and pulse the alarm LED and zone
LED
✓
outputs (NACs and control modules) of associated zones will be inhibited from activating
for a factory set duration of 15 seconds
✓
pressing the Alarm Silence or Acknowledge/Step key will start a timer which inhibits
output activation for additional time delay of up to three minutes which is user
programmable
✓
second alarm occurring anytime during either time delay will cause immediate activation
of all associated outputs
PAS does not affect monitor modules programmed as waterflow, supervisory, process monitoring
or remote switches.
PAS operation requires the approval of the local Authority Having
Jurisdiction .
Note that the PAS BYPASS monitor type code, when activated, will inhibit the PAS capability until
the PAS BYPASS monitor is deactivated. While PAS is inhibited, signaling devices will
immediately place the control panel into alarm. This feature may be employed by wiring a
normally open device, such as a switch, to a monitor module which has been programmed for
PAS
BYPASS .
!