2.2 Relay
Mode
The unit is equipped with relays which are enabled in this mode.
A 24 Vdc (nom) supply is required to operate the unit (max current 24mA).
The unit’s volt free relay contacts are used for signalling of Fire and Fault conditions.
The Fire relay is normally de-energised and energises on an infra-red detection alarm.
The Fault relay is normally energised and de-energises on power supply removal or module
regulation failure. Fault relay signalling can also be arranged for loss of air supply if a
pressure switch is employed.
Refer to figure 3.
2.3 Low
Power
Mode
In this mode the relays are disabled and the unit’s quiescent supply current is very low and
of a similar level to conventional Smoke and Heat detectors.
By the connection of appropriate resistor values to the sensor’s “solid state” outputs the unit
will signal Normal, Fire & Fault conditions by line current levels, in a manner that permits
the unit to be connected directly to fire control panels via alarm trigger circuits, or to the
monitored inputs of addressable loop interface modules.
The unit can also be employed with the two wire connection to a remote Patol signal relay
module.
Refer to figures 4 & 5.
Patol Limited
ALARM
FAULT
SUPPLY
5610 SENSOR HEAD
Fig.4
*
*
Solid State Output Switches
2 WIRE TRIGGER CIRCUIT
ALARM AND
EOL RESISTORS
AS PER FIRE PANEL
REQUIREMENT
CONVENTIONAL
FIRE CONTROL PANEL
AND / OR
PATOL SIGNAL
RELAY MODULE
TWO WIRE CONNECTION
ADDRESSABLE
LOOP INTERFACE
MODULE
ANALOGUE
ADDRESSABLE
FIRE ALARM
CONTROL PANEL
5610 SENSOR HEAD
ALARM & EOL
RESISTOR
CONFIGURATION
AS PER FIG.2
Fig.5
2 WIRE ADDRESS LOOP
SUPPLY
VOLT FREE CONTACTS
FIRE RELAY
(Normally De-Energised)
FAULT RELAY
(Normally Energised)
5610 SENSOR HEAD
Fig.3
ALARM
FAULT
2 WIRE SUPPLY CIRCUIT
24 Vdc
POWER SUPPLY
Page 5 of 16
D1198 - Issue 1 - 25 September 2013
Series 5000 - Manual 5610