HIGH LEVEL INTERFACE
20
P/N 06-158
UL S3217
Rev 5, 02/2015
FM 3020297
5.3 TROUBLE
INTERACTIONS
Certain trouble events will prevent the Fike Control Panel from activating an alarm (at any level) for the
VESDA device. They are:
♦
ISOLATE ACTIVE
=
When the VESDA detector has been isolated either from the Fike Control Panel or a
VESDA display unit.
♦
DISABLED
= When the VESDA virtual address has been disabled from either the ENABLE menu or the
CONFIG menu.
♦
BAD CONFIGURATION
= When the checksum for the virtual address configuration calculates an error.
♦
WRONG DEVICE
=
When some other addressable device has been detected on a loop circuit at the
virtual address.
5.4 GRAPHIC
ANNUNCIATOR
The virtual address scheme allows a graphic annunciator to assign an LED to turn on for an alarm or trouble
condition for the VESDA device occupying the address, or to program a voice evacuation system to
recognize an individual VESDA point.
5.5
OPERATION - CHEETAH
5.5.1 ALARM
OPERATION
If a VESDA is configured in the Cheetah control panel for
ALARM
, the following levels and states will be seen
and activated on the panel:
♦
Alert Level
= Pre-Alarm LED illuminates on panel, piezo sounds (constant), and Pre-Alarm 1 state
entered for the configured panel zone. None of the onboard relays change states. Condition is non-
latching and will clear itself when obscuration level drops below the
Alert
Level in the VESDA. (Unless
VESDA is set to latching on Alarms)
♦
Action Level
= Pre-Alarm LED illuminates, on panel, and Pre-Alarm 2 state entered for the configured
panel zone. None of the onboard relays change states. Since this is a new smoke level, Piezo will
resound if they were silenced in
Alert
Level. Condition is non-latching and will clear itself when
obscuration level drops below the
Action
Level in the VESDA. (Unless VESDA is set to latching on
Alarms)
♦
Fire-1 Level
= Alarm LED illuminates on panel, Piezo and alarm audibles sound, alarm state entered for
the configured panel zone, and on board Alarm relay energizes. This state is latching and panel will need
to be reset after obscuration drops.
♦
Fire-2 Level
= Alarm LED re-illuminates on panel, alarm state active for the configured panel zone, and
on board Alarm relay remains energized. Since this is a new Alarm Level, alarm audibles and Piezo will
resound if they were silenced in
Fire 1
Level. This state is latching and panel will need to be reset after
obscuration drops.
L
Note:
Pre-Alarm conditions are non-latching in the control panel. However, if the VESDA is configured to
latch on alarm states, the VESDA will keep that level from clearing on the control panel. Alarm is always a
latching event at the panel whether the VESDA is configured to latch on alarm or not.
