User Manual
Version 5.3
1 - Introduction:
Congratulations for buying the NIBBLE FIREWALL Fire Alarm Control Panel!
In this manual you will find a detailed description of all functionalities and operating modes.
The NIBBLE Fire Alarm Control Panel is suited to conventional systems, offering high security patterns in different applications.
The FIREWALL complies with
EN-54
and its main features are:
•
Up to 16 zones,
monitoring both short-circuits and open-circuits;
•
Up to
32 conventional detectors
, by each zone;
•
Open-collector programmable auxiliary outputs
(one by zone);
•
Up to 2 relays that can be programmed to signal several fails or fire alarm;
•
Monitored output against short-circuits and open-circuits for sounder of 24VDC and up to 500mA;
•
Configurable delay between detection and signaling of the fire alarm allows user to avoid false alarms that some detectors could generate
(normally during the day);
•
24VDC outputs
allow to connect external circuits up to 500mA;
•
Backup power-supply through
only one battery of 12 VDC / 7Ah
, or two batteries of 6 VDC / 12Ah in series.
•
User-friendly
frontal panel.
2 - Features:
2.1 Delay mode:
Some detectors could generate false alarms because of electromagnetic or light interferences. To avoid the occurrence of such false alarms, the
FIREWALL could be configured to introduce a delay between the detection instant (by the detectors) and the actuation by the control panel.
This time period is programmable and allows the user to reset the control panel when he verifies the alarm doesn't exist.
2.2 Intelligent and automatic zones:
The circuits of detection can be constituted by conventional detectors and callpoints. In the case of callpoints, the signaling of the fire alarm
should be immediately executed.
An intelligent zone have the ability to distinguish if the alarm was generated from a detector or from a callpoint, and when in “Delay mode” the
delay is only applied to the detections which origin was a detector.
In an automatic zone, there is no difference between detectors and callpoints, and the alarm is immediately signaled.
2.3 Open-collector auxiliary outputs:
For each zone is available an auxiliary output that can be configured to signal a failure or an alarm detection in the corresponding zone. Each of
these open-collector outputs can sink up to 500mA
.
2.4 Automatic test:
The FIREWALL has a test mode which resets the system automatically after an alarm (see 7.6) allowing the system to be tested by a single
person.
2.5 Smart setup:
The FIREWALL can be configured to adapt to any detector, manual callpoint, or termination resistor (see 7.7). This way, it is possible to replace
another fire alarm panel by a NIBBLE FIREWALL without having to change the existing circuit.
2.6 Maintenance warning:
In order to always ensure the safety of the premises, the FIREWALL can notify when it’s time to perform a check-up. The maintenance period can
be configured according to section 4.7.
3 - Mounting:
The FIREWALL is for indoor use with low humidity, and should be mounted in vertical position with screws.
It can be mounted either in flush or surface positions, keeping access to the frontal cover for mounting and maintenance purposes.
Note
: Detectors should be mounted near the fire alarm control panel. This allows to minimize the risk of control panel destruction
by the fire before emitting the alarm. Automatic fire extinguish systems should be placed avoiding control panel damaging when actuated
(eg. 'sprinkler').
4 - Connections:
With exception for power supply and relays, it is recommended to use shielded cables with a section of at least
0,25 mm
2
, and the shield should be connected to earth.
4.1 Main power supply:
There is a connector to connect the control panel to main power supply. It is recommended to use cable type
A05VV-F with 3 wires with section of 1,5 mm
2
.
This connector have also the main fusible (F4A L250V).
To power the control panel on and off the circuit switch, located upstream, should be used with a minimum of
16A.
Note
: Power on the control panel only after finishing all connections.
4.2 Zones:
For each zone there are available 4 terminals, 2
for the detection circuit and 2 for an open-collector
auxiliary output (Figure 2).
The auxiliary output signals the detection of an
alarm in the corresponding zone. When activated, it
closes the circuit between AUXn+ and AUXn–
2 / 8
Figure 3: Zone with detectors and termination resistor.
R
Figure 2: Zone
connectors.
Figure 1: Power supply
connector
