EQUIPMENT: FIRECLASS Prescient III WRITTEN BY: RKP
PUBLICATION: OMFCPRES3IN CHECKED BY: AP
ISSUE No. & DATE: 0 02/02/12
PAGE 16 of 43
The LED is illuminated steady if the aux zone
input is disabled or selected to the Test mode.
3.16.6. REMOTE SOUND ALARMS
The REMOTE CONTROLS input status is
displayed by two LEDs.
The red LED is normally off, illuminating steady
when the input registers a Sound Alarms.
The yellow LED is normally off, pulsing for an
open or short circuit fault on the Remote
Controls input.
3.16.7. FIRE SOUNDER FAULT/DISABLED
This is a yellow LED which is normally off, pulsing
for an open or short circuit on either of the general
sounder circuits, illuminating steady when the
general sounder circuits are disabled. A separate
fault LED for each sounder circuit is also provided
on the control board inside the panel.
3.17 Display Board – Common Status
Indications
3.17.1. POWER SUPPLY ON
This is a green LED which is illuminated steady as
long as there is a supply of power to the panel.
3.17.2. GENERAL FAULT
This is a yellow LED that is normally OFF. The
LED pulses for any fault on the panel.
3.17.3. POWER SUPPLY FAULT
This is a yellow LED that is normally OFF. The
LED pulses if there is a mains or battery failure.
3.17.4. SYSTEM FAULT
This is a yellow LED that is normally OFF. The
LED pulses if the CONFIG I/S INPUTS or
CONFIG SLU DIL switch is in the ON position.
The LED is steady if the microprocessor fails to
execute the software correctly or an internal
memory corruption is detected.
Note: The system is completely non-
functional and alternative fire detection
measures should be implemented.
3.17.5. EARTH FAULT
This is a yellow LED that is normally OFF. The
LED pulses if there is a low resistance to earth on
any of the field cables.
3.17.6. FUSE FAILED
This is a yellow LED that is normally OFF. The
LED pulses if either of the electronic fuses on the
two auxiliary 24V supply outputs are activated due
to excessive loading.
3.17.7. FAULT SIGNAL FAULT/DISABLED
The is a yellow LED which is normally off, pulsing
for an open or short circuit fault on the Fault Signal
output. The LED is illuminated steady if the Fault
Signal output is disabled.
3.17.8. SOUNDER TEST
This is a yellow LED which is normally off,
illuminating steady when the three sounder circuits
are in the TEST mode.
3.18 Display Board – Extinguishing
Status Indications
3.18.1. AUTO & MANUAL
This is a yellow LED that is illuminated steady if
the actuators can be operated both automatically
(via a fire alarm on zones 1 & 2) and manually (via
manual release).
3.18.2. MANUAL ONLY
This is a yellow LED that is illuminated steady if
the actuators can only be operated manually (via
manual release). The LED pulses if an
AUTO/MANUAL switch in the field is set to Manual
3.18.3. MANUAL RELEASE ACTIVE
This is a red LED that is normally off, pulsing if
manual release is activated either by operation of
the Manual Release Call Point on the front of the
panel or via the operation of a manual release unit
connected to the Manual Release Zone input. The
indication becomes steady when the panel is in
the Alarm Silenced condition.
3.18.4. SYSTEM ACTIVATED
This is a red LED that is normally OFF, pulsing
during the pre-activated condition (1
st
Stage),
illuminating steady during the activated condition
(2
nd
Stage). The LED remains illuminated until the
Extinguishing System is reset.
3.18.5. GAS RELEASED
This is a red LED that is normally OFF. It is
illuminated steady when the panel is in the Gas
Released condition. This normally occurs when
the GAS RELEASED input is activated, but can be
configured to occur as soon as the actuator
circuits are energised (via the NO DISCHARGE
PRESSURE SWITCH DIL switch). The LED
remains illuminated until the Extinguishing System
is reset.
3.18.6. GAS RELEASED SIGNAL ACTIVE
This is a red LED which is normally off. It is
illuminated steady when the Gas Released output
is active.
3.18.7. EMERGENCY ABORT ACTIVE
This is a yellow LED that is normally OFF. It
indicates that the release of extinguishing gas has
been aborted. The LED pulses if a fault occurs on
the Abort input when the Extinguishing System is
not in the pre-activated or activated conditions (a
separate fault LED is also provided on the control
board). The pulsed indication is non-latching and
clears when the fault clears. The LED is
illuminated steady If the Abort input is activated (at
any time), or a fault occurs on the input during the
pre-activated or activated conditions. The
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