SD3 ALPHA 2 Manual

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ALPHA 2 Rev. 2.1
2 ZONES FIRE DETECTION
CONVENTIONAL PANEL

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SUMMARY
1- FIRE DETECTION PANEL ALPHA 2............................................................... 3
1-1 INTRODUCTION............................................................................................. 3
1-2 ALPHA 2 MODULE ......................................................................................... 3
1-3 POWER SUPPLY UNIT AND BATTERIES .................................................... 3
1-4 TECHNICAL SPECIFICATIONS..................................................................... 4
1-4-1 General specifications.................................................................................. 4
1-4-2 Power supply unit of base module ............................................................... 4
1-4-3 Base module of panel .................................................................................. 5
1-5 BASE MODULE CONSUMPTION .................................................................. 6
1-6 OPERATING CHARACTERISTICS OF POWER SUPPLY ............................ 6
1-7 OPTIONAL EN54 FUNCTIONS ...................................................................... 6
1-8 EXTRA FUNCTIONS ...................................................................................... 6
1-9 DIMENSIONS AND INTERNAL VIEW OF ALPHA 2 ...................................... 7
2- INDICATIONS & COMMANDS......................................................................... 7
2-1 CONTROL PANEL.......................................................................................... 7
2-1-1 A-LED indications of general states of fire panel ......................................... 8
2-1-2 B-LED indications of faults........................................................................... 8
2-1-3 C-LED indications and general commands.................................................. 9
2-1-4 D-LED indications and commands relative to zones ................................... 9
2-1-5 E-LED indication of LEVEL 2 ACCESS ....................................................... 9
3- FUNCTIONS & OPERATIONS....................................................................... 10
3-1 PRE-ALARM, ALARM & FAULT OF ZONES................................................ 10
3-2 SILENCE BUZZER AND/OR ALARM/FAULT OUTPUTS ............................ 10
3-3 ENABLE ACCESS LEVEL 2 ......................................................................... 11
3-4 ENABLE/DISABLE ZONE............................................................................. 11
3-5 RESET OF PANEL ....................................................................................... 11
3-6 AUTORESET OF FIRST ALARM ................................................................. 12
3-7 ALARM DELAY ............................................................................................. 12
4- CONFIGURATION OF PANEL....................................................................... 12
4-1 ENABLE CONFIGURATION......................................................................... 12
4-2 BASE CONFIGURATION ............................................................................. 14
4-3 VERIFY/MODIFY CONFIGURATION OF ZONES........................................ 14
4-4 VERIFY/MODIFY CONFIGURATION OF DELAYS...................................... 16
4-5 VERIFY/MODIFY CONFIGURATION OF OPTIONS.................................... 18
5- PANEL INSTALLATION AND MOUNTING ................................................... 21
5-1 PARTS IDENTIFICATION............................................................................. 21
5-2 INSTALLATION............................................................................................. 22
5-3 PANEL MOUNTING...................................................................................... 22
6- PANEL MAINTENANCE ................................................................................ 23
7- IMPLANTATION AND TERMINAL BLOCKS ................................................ 23
7-1 MODULE ALPHA 2 ....................................................................................... 23
7-1-1 Mains terminal block (MR) ......................................................................... 25
7-1-2 Batteries connections (red and black cables) ............................................ 25
7-1-3 Exploitable outputs (CN1) ......................................................................... 26
7-1-4 Terminal block for connection of zones 1, 2 (M2) ...................................... 26
7-1-5 Terminal block for connection of actuators (M3)........................................ 26
7-2 Connection of alarm actuators ...................................................................... 27
7-3 Connection of detectors ................................................................................ 28
8- Connection diagram ..................................................................................... 29
8-1 Connection of detectors FARE OC05/TRC05/TSC05 to panel..................... 29
8-2 Connection of visual/acoustic indicators to panel ......................................... 30

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1- FIRE DETECTION PANEL ALPHA 2
1-1 INTRODUCTION
ALPHA 2 is fire detection and indicating panel that uses microprocessor techniques and
designed to meet the requirements of standards EN 54-2 and EN 54-4. It is housed in a
reduced size plastic box and integrates a control panel (Figure 1) that allows an easy
management through signalizations and intuitive commands.
The panel manages two zones by the means of monitored bifilar lines balanced with end of
line resistors; each detection line can support a maximum of 32 point detectors or manual
call point. Each zone has indicators that allow the immediate visualization of the states of
alarm, fault and disabled; moreover, commands are available for disabling each single zone.
All the signalizations are reported through LED and with the aid of a piezoelectric buzzer.
The functions of command are managed through membrane keys and are protected, for the
functions of reset and disabling, with an access code.
Figure 1 – ALPHA 2 front panel
1-2 ALPHA 2 BASE MODULE
ALPHA 2 base module consists on a microprocessor board that incorporates and manages
all the functions of the fire detection panel: power supply, inputs/outputs interface, command
keys and LED. The module is mounted on the front cover with screws and gives access from
the external side to LED and functions of command protected by polycarbonate serigraphy.
For implantation and connections of the module refers to the appropriate section in par.7-1.
1-3 POWER SUPPLY UNIT AND BATTERIES
The power supply unit is realized in conformity with EN54-4 standard and supplies a D.C.
voltage between 21V and 28,5V depending on the operating conditions and the ambient
temperature (battery charger compensated in temperature). Power supply unit consists on a
linear local power source integrated on the ALPHA 2 module that supplies the primary power
source and two sealed lead accumulators batteries that supply the secondary power source
in case of lack of mains. The unit is permanently controlled by the electronic of ALPHA 2
which provides a fault condition in case of anomalies like:
•Batteries disconnected or FUSE battery fault
•Low battery
•Battery charging not efficient
•mains absent

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•Output voltage of power supply module is out of the admitted limits (< 21V or > 30V)
1-4 TECHNICAL SPECIFICATIONS
1-4-1 General specifications
NAME EQUIPMENT ALPHA 2: 2 conventional zones fire detection panel
MANUFACTURE CHARACTERISTICS In agreement with EN54-2 and EN54-4
ENVIRONMENT CONDITIONS -5°C ± 3°C... 40°C +/- 2°C, max humidity 93% with no condensation.
BOX plastic box CMP1 with IP30
Dim 300 x 260 x 125 millimetre
NOMINAL VOLTAGE OF MAINS 230V +10% / -15% ~ 60Hz
MAXIMUM ABSORBED CURRENT
FROM MAINS < 110 mA
OPERATING VOLTAGE OF SYSTEM min. 20,5V D.C, max 30V D.C
1-4-2 Power supply unit of base module
PRIMARY SOURCE
INPUT VOLTAGE 230V +10% / -15% ~ 60Hz
TRANSFORMER 15VA primary 230V, secondary 32V
TYPE OF REGULATION Linear with serial regulator
NOMINAL OUTPUT VOLTAGE
27,5V (at 20°C, with batteries connected). The output voltage is
stabilized and compensated in temperature in agreement with the
characteristics of battery charging
RIPPLE OF VOLTAGE <100 mV pp
CURRENT AVAILABLE FOR
EXTERNAL SUPPLYING
0,1A in continuous
0,5A for short periods (30min with charged and connected batteries)
NOTA: In order to guarantee 24h autonomy in absence of mains,
refer to the data regarding the maximum current in the next section.
MIN/MAX OUTPUT VOLTAGE Min=21V, max=28,5V (voltage available in any operating conditions
for panel supplying, external supplying and battery charging).
SAFETY SOURCE
BATTERIES TYPE 2 sealed lead batteries connected in series, type: YUASA NP4-12,
12V 4Ah
CURRENT AVAILABLE FOR
EXTERNAL SUPPLYING IN ABSENCE
OF PRIMARY SOURCE (current max in
order to guarantee autonomy of 24h)
100mA at 24V nominal (batt.2x12V 4Ah).
DURATION OF CHARGING 24h for 80%, 48h for 100% of the nominal capacity (4Ah).
PERIOD RECOMMENDED FOR
SUBSTITUTION 3 years
POWER SOURCE OUTPUTS Distinguished outputs for panel/external power supplying and for
battery charging.
PROTECTIONS
Fuse 0,25A T for the input of mains, fuse 3,15A T for protection
battery, and fuse 1A T for lines and auxiliary outputs.
Serial regulator with thermal protection and limitation of current

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1-4-3 Base module of panel
INPUTS FOR DETECTORS 2 inputs for bifilar lines supplied with 27V, with line monitoring
through end of line resistor (see par.8-1)
TYPE AND NUMBER OF DETECTORS
MANAGED FOR EVERY LINES
Max 32 detectors or 32 push-buttons with serial limitation resistor
470Ω¼ W. The detectors must operate correctly in a range of
tensions comprised between 12V and 30V D.C and absorbing a
current below 60µA.
CONTROL THRESHOLDS LINES (total
absorption detector + EOL resistor, at
27V)
Thresholds can be selected at access level 3 through configuration
procedure (see par.4-5). This configuration allows panel to
recognise pre-alarm/alarm states for several typologies of detectors.
SOUNDERS LINES
- 27V monitored sounders line; it supplies 27,5V max 5A in alarm
condition. The monitoring is obtained with end of line resistor 3,9kΩ
¼ W
- 27V auto powered sounders line. 27,5V standby voltage becomes
0V in alarm condition. The maximum admissible current of this output
must be in agreement with the specificities detailed for the group of
power supply.
- Auxiliary alarm relay, SPDT free potential contacts,
1A/30V=.
FAULT OUTPUT Fault relay SPDT 1A/30V V= normally excited in standby state
(positive safety).
AUXILIARY OUTPUTS
See CN1, par.7-1 fig.6. It makes available:
positive and negative (+27,5V max 1A)
positive lines (+27V max output current 4mA; disabled in
phase of reset lines)
programmable output open collector (max 4mA / 30V).
INPUT OF COMMAND - Input for auxiliary activation of access level 2 (see jumper JP1).
- Input for activation of configuration mode (see jumper JP2).
ORGANS OF
SIGNALLING
Led and buzzer for the signalling of operating states, functionality,
power, deactivation, faults, alarms.
ORGANS OF COMMAND
Keys of the front panel are reachable for the function of silence
buzzer and protected with access level 2 for the disable functions,
reset and outputs management
ORGANS OF PROGRAMMING Led/keys of the panel are reachable in the mode of configuration
(protected mode, access level 3 with the opening of the box of panel).
ACCESS LEVELS
Access level 1 is always active. At access level 1 all the indications,
the command of silence buzzer and sounders line management are
available.
Access level 2 is reachable through code or external command. It
allows the access to the command of reset, outputs management
(alarm/fault) and disable.
Access level 3, 4 are reachable with the opening of the box of panel
and with specific procedures. They allow the operating configuration
of panel.

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1-5 BASE MODULE CONSUMPTION
DEVICE: DESCRIPTION: Operating consumption at 24V:
ALPHA 2 Base module in condition of standby with the
2 monitored lines connected 80mA
1-6 OPERATING CHARACTERISTICS OF POWER SUPPLY
PARAMETER OPERATING CONDITIONS MIN TYP MAX UNIT
Mains power supply voltage Mains frequency 60Hz 195 230 250 V
Current absorbed from mains No external supplying
Batteries disconnected 32 45 60 mA
Current absorbed from mains Max external supplying
Low batteries connected 75 85 100 mA
Charging batteries voltage 21 27,5 28,5 V
Maximum charging batteries
current Panel powered 0,3 A
Available batteries current Mains absent 1 A
Voltage of power supply group
output - 21 27,5 28,5 V
Current of power supply group
output, continuous charging Batteries disconnected 0,1 A
Current of power supply group
output, for short duration Batteries disconnected 0,2 A
Current of power supply group
output, for short duration
Charged batteries
connected 0,5 A
1-7 OPTIONAL EN54 FUNCTIONS
- Possibility, for each single zone, to manage the delayed alarm.
- Management of the outputs (needs a prior configuration)
1-8 ACCESSORY FUNCTIONS
- Possibility to set for every single zone the function of auto reset of the first alarm
(the alarm of zone activates the actuators if it is introduced on at least two zones or if
the alarm occurs two times on the same zone within a certain time).
- Possibility to qualify on every single line the management of the pre alarm threshold
(management AND of 2 alarms).
- Possibility of activation of the access level 2 through electromechanical setting (the
access level 2 is normally obtained through code setting).

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1-9 DIMENSIONS AND INTERNAL VIEW OF ALPHA 2
Measures of panel box ALPHA2: CMP1: H300 x L260 x P125 millimetre.
Mains 230V
Batteries location
Wiring
entrance
Terminal blocks of
detection lines and
out
p
uts
ALPHA 2 MODULE
Figure 2 – ALPHA2 panel: inside disposition of the modules and the batteries
2- INDICATIONS & COMMANDS
2-1 CONTROL PANEL
Indications and commands are grouped in logical groups (Figure 3):
Figure 3 - control panel ALPHA 2
DB C
A
E

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2-1-1 A - LED indications of general states of fire panel
LED POWER
Is steady on if the panel is working with the main power source (presence of mains),
flashes with a short period of ignition if system lacks mains voltage for less than
20min (working with batteries), it is off if the mains lacks mains voltage for more than
20 minutes (fault) and flashes in normal way if the panel is power supplied by mains
but fault is present in the mains (voltage outside from the limits: < 21V or > 30V).
LED FAULT
It indicates that a condition of fault is present in panel.
LED DISABLED
If steady on, it indicates that a condition of disabling is present in panel (sounders or
zones disabled); it flashes during the phase of reset
LED ALARM
If steady on, it indicates that a condition of alarm is present in panel and that the
corresponding output is activated.
If blinking with long period of ignition and short extinction, it indicates pre alarm or
delayed alarm in course.
2-1-2 B - LED indications of faults
LED POWER FAULT
If steady on, it indicates that the power supply of panel is not correct because of one
of the following conditions of anomaly:
•lack of mains voltage since more than 20 minutes
•The local power supply voltage of panel is outside from the limits
•the battery is disconnected or inefficient
•the circuit of battery charging is out of order
Flashing of the led indicates that the power supply is correct but some anomaly
conditions had occurred previously (memorised signalling).
LED FAULT EARTH
If steady on, it indicates a condition of low isolation between one of the electrical
parts and the earth.
If flashing, it indicates a correct state but some anomaly conditions had occurred
previously (memorised signalling).
LED SOUNDERS FAULT
If steady on, it indicates the presence of fault on the monitored line that commands
the alarm actuators (sounders line balance fault).
If flashing, it indicates a correct state but some anomaly conditions had occurred
previously (memorised signalling).
LED CPU FAULT
It indicates that the microcontroller of panel is temporary or permanently out of
control.
This type of anomaly can be caused by strong disturbances of electrostatic origin,
from an abrupt decrease of the power supply voltage or by a physical anomaly of the
board of the panel. In this last case the signal can be shut but it is not resettable.
In the other cases it is possible to reset the signalization with the dedicated
pushbutton by following the procedure described in the point 3.5; if it has no effect
(error in the configuration memory) it is enough to activate and deactivate the
configuration procedure as it is described in the point 4.1.

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LED FUSE FAULT
If on, it indicates that the fault of the fuse places into protection the outputs of panel
(sees F3 par.7-1).
2-1-3 C - LED indications and general commands
LED DISABLE SOUNDERS
If steady on, it indicates that the sounders lines have been deactivated.
The corresponding key allows (at access level 2) the activation/deactivation of the
sounders line.
The led is flashing in normal way (alternatively on/off) during the phase of reset.
LED SILENCE BUZZER
The ignition of the led indicates that the acoustic signalling of the buzzer, activated as
a result of a fault or alarm condition, has been manually silenced by the means of the
corresponding key.
NOTA: the pressure of the key at access level 1 (led level 2 off) has effect
only on the buzzer.
The pressure of the key at access level 2 (led level 2 on), allows to carry out the test
of the led and buzzer (simultaneous ignition of the led) and if set in phase of
configuration (see par.4-5), executes also the silencing of the outputs of alarm/fault.
COMMAND RESET
The pressure of the key with active access level 2 (led on) provokes the restoration of
the memorised conditions of alarm/fault.
The phase of reset is temporised and signalised by simultaneous and regular flashes
of the led of disable.
2-1-4 D - LED indications and commands relative to zones
LED ZONE DISABLED
If steady on, it indicates that the relative zone is disabled. If the two disable leds of
zone are flashing simultaneously and normally, it indicates that the zones are in
phase of reset (temporary disabled).
The corresponding key allows (access level 2) to activate/deactivate the relative
zone.
LED ZONE ALARM
If steady on, it indicates that the relative zone is in alarm conditions. If it is flashing
with long period of ignition and short extinction, it indicates that the zone is found in
conditions of pre alarm (zone set in pre alarm mode and line absorption corresponds
to pre alarm thresholds).
If flashing regularly, it indicates that the zone is in normal state but some anomaly
conditions had occurred previously (memorised signalling).
LED ZONE FAULT
If steady on, it indicates that the relative zone is in condition of fault (line open or in
short circuit).
If flashing, it indicates that the zone is in normal state but some anomaly conditions
had occurred previously (memorised signalling).

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2-1-5 E - LED indication of ACCESS LEVEL 2
If steady on, it indicates that the access level 2 is activated and therefore are
available the sounders line management and RESET keys.
Moreover, in access level 2, the SILENCE BUZZER key allows carrying out the
Led/buzzer test and if so configured, it allows triggering the alarm/fault outputs.
The activation of access level 2 is obtained by the means of pressing keys (see
par.3-3) or can be activated (optionally) also by the means of a setting of jumper on
ALPHA 2 module (see JP1 par.7-1).
3- FUNCTIONS & OPERATIONS
3-1 PRE-ALARM, ALARM & FAULT OF ZONES
Panel manages, for every zone, a physical lines to which are connected the fire
detectors to.
For each line the panel controls constantly the absorbed current and, according to
this, shows the state of the corresponding zone. In particular:
•does not appear any signalling of zone if the line is in standby
•shows the state of zone fault if the line is cut or short circuited (excessive
current or current=0A)
•Shows pre alarm or alarm if one or more detectors reveal fire condition
(current over the thresholds of pre alarm or alarm).
The pre alarm of zone is a condition that generates the signalling of panel but do not
activate the sounders. Pre alarm mode is set in phase of configuration (see par.4-3),
panel will indicate pre alarm state if one detector goes in fire alarm (current over the
thresholds of pre alarm and under the threshold of alarm). It is shown by an irregular
flash of red led of zone (long ignition/ short extinction) and by the sound of the
buzzer. Zone goes in alarm state if a second detector goes in fire alarm, or if push-
button is activated (current over the thresholds of alarm) or if the alarm comes from a
single detector that belong to a zone not declared as pre alarm.
Fire alarm of zone is shown by the ignition of the relative red led and the buzzer if
the zone has not been set in delayed alarm and the delay of alarm actuators is not
set. But for delayed zones, in alarm condition the countdown starts until alarm
actuators are triggered. Delay is set during configuration (see par.4-4)
The fault state is reported in case of short circuit (line current excessive) or in case
of open line (line current insufficient) of the relative line, and it is shown by the ignition
of yellow led relative to the corresponding zone. The fixed ignition of the led indicates
the current presence of the fault; the flashing of the led indicates a memorised
signalling (fault no longer present).

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3-2 SILENCE BUZZER AND/OR ALARM/FAULT OUTPUTS
In case of pre alarm, alarm or fault, ALPHA 2 turns the relative Leds and the buzzer
on. The acoustic signal can be deactivated without necessity of advanced access
level by pressing for a moment SILENCE BUZZER key.
At access level 2 and in case of alarm or fault, the key allows deactivation of relative
outputs.
This action is signalled by ignition of yellow led relative to this key and its effect lasts
until reset or until a new alarm/fault state occurs.
It is possible anyway to set the panel for an automatic deactivation of buzzer after
10min (see par.4-5)
NOTA: Automatic deactivation of buzzer is not applied for CPU Fault, for this
fault you need to reset the panel manually.
3-3 ENABLE ACCESS LEVEL 2
All the command available on ALPHA 2, except from SILENCE BUZZER and manual
activation of sounders line (in phase of delayed activation of sounders line), are
operative only after activating access level 2.
This access level, anticipated for specific users, is signalled by green led and is
activated by pressing an access code like detailed next:
a) Press and maintain key SILENCE BUZZER. This operation changes the nature of
the keys DISABLE of zone and become the following setting keys: Zone 1 = Key 1,
Zone 2 = Key 2.
b) Press sequence Key 1 and Key 2 (code access level 2)
c) Release the key SILENCE BUZZER.
If the operation has been executed correctly, green led level 2 will be ignited. This
access level 2 remains active for 30s since no key has been pressed during this time.
Access level 2 can be optionally activated by the means of mechanical key to be
inserted in the panel as well (see par.7-1).
3-4 ENABLE/DISABLE ZONE
Every single zone can be disabled or enabled by following this procedure:
a) Activate access level 2
b) Press key ON/OFF relative to the zone you want to disable/enable; if the
corresponding led goes yellow on it means that the zone is disabled and if the led is
off it means the zone is enabled (pressing the ON/OFF key switches alternatively the
zone ENABLE – DISABLE)
The deactivation of the zone remains permanent until it is manually activated again.
Disabled zones are considered non operative by ALPHA 2, therefore all alarm or fault
signalisations relative to disabled zones are ignored. Disabled zone remains able to
analyse the state of its line and keeps on indicating through led the eventual alarms
or faults kept in memory.

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3-5 RESET OF PANEL
Alarm/fault states that are registered by the panel are memorised through the led or
through the alarm actuators. Actions on SILENCE BUZZER are also memorised.
In order to get back to normal state after a condition of anomaly it is necessary to
carry out a RESET operation.
The reset is obtained pressing the dedicated key after having activated the access
level 2 (see par. 3-3).
Reset takes place in 2 phases and lasts a couple of seconds (programmable). In the
first phase, ALPHA 2 cuts the power of the detection lines (physical reset of
detectors), in the second phase (post reset) the lines are powered again and ALPHA
2 keeps on ignoring the eventual alarm or fault states coming from zones.
The 2 phases of reset are indicated by the blinking of DISABLE leds of zones.
3-6 AUTO RESET OF FIRST ALARM
It is possible, in phase of configuration, to set for each zone the function of auto reset
of the first alarm.
The auto reset of the first alarm is a filter function that allows ignoring the alarm
states that could be false. The principles of the auto reset are following:
a) If an alarm occurs on a zone set in auto reset, the alarm is not registered but it
generates the activation of a delay of 3 seconds.
b) If within this time another alarm occurs on any zone, it will be recognized by the
panel as true (AND of two alarms generates true alarm). If no alarm has occurred
within these 3 seconds, ALPHA 2 will cut the power of the relative line for a time
corresponding to reset allowing physical reset of detector in alarm.
NOTA: the reset does not cancel the eventual memorizations of anomalies
registered previously on the led.
c) At the end of the time of reset panel begins a 5 minutes countdown. If within this
time another condition of alarm occurs on any zone panel will recognise it as true
alarm, and will start again 5 minutes countdown. After 5 minutes the function of filter
of alarms will be restored.
3-7 ALARM DELAY
It is possible to delay the activation of alarm outputs after an alarm has occurred.
This function can be set in phase of configuration (level 3) for every single zone. This
setting is permanent until another setting occurs.
In case of alarm, the activation of the countdown of delay is indicated by the blinking
of the led of general alarm which becomes steady when the countdown ends, then
outputs are activated.
If another alarm occurs on a normal zone during this delay the countdown is stopped
and the alarm outputs are activated immediately.
The delay can be set in phase of configuration (sees par.4-4).
NOTA: The alarm delay concerns only the alarm outputs, activation of
acoustic and visual indications on panel are immediate.

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4- CONFIGURATION OF PANEL
ALPHA 2 is equipped with a non volatile memory on which all the parameters of
configuration reside.
Some of these parameters can be modified by the installer, in agreement with
normative, in order to adapt the panel to the necessities of the installation.
4-1 ENABLE CONFIGURATION
The activation of configuration mode is protected (access level 3) and it is
obtained operating like following:
a) Remove the screws of the front cover of panel to reach the internal electronic;
b) Insert the jumper of configuration JP2 (see Figure 4) on the microprocessor board;
c) Push the RESET button P1 on the µP board (see Figure 4) for a short time.
The configuration mode is signalled by the blinking of the yellow led of DISABLE and
LEVEL 2 (see CF in Figure 5).
The following conditions are also present:
- All the alarm/fault actuators turn into standby state;
- Detection lines are put in condition of reset (Voltage on the lines not present);
- Leds and keys have different functions as in normal condition
To deactivate configuration mode take jumper JP2 off.
NOTA: If in phase of configuration no key is pressed for more than 10
minutes, buzzer will go on and fault output will be activated.
JP3
P1
Figure 4 – ALPHA 2 module: jumper of configuration
The visualization and/or modification of settings of configuration are carried out
through leds and keys that have new meanings during the period of configuration.

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CF
CF
1
2
3
4
5
AB
CD
SO
ST
SZ
SA
SB
Figure 5 - Led and keys of the panel used for configuration
The 3 keys RESET, SILENCE BUZZER and DISABLE SOUNDERS become
respectively the selection keys of configuration for: zones [SZ], delay [ST], and the
options [SO].
FAULT led become the indicators of parameters 1-5 in configuration mode.
Led DISABLE and ALARM of zones [A...D] become finally the indicators of the
configuration value, and the relative keys ON/OFF [SA, SB] allow modifying the
corresponding positions.
All the others led and keys are not significant in configuration mode.
For the visualization/modification of each parameter, refer to the next pages.
4-2 BASE CONFIGURATION
The factory configuration of ALPHA 2 complies with EN 54-2.
Before carrying out any modification of the configuration it is necessary to
refer first to the standard normative in order to avoid an improper operating
setting.
The factory configuration is following:
Zones/lines:
•Zones 1 & 2 are set in instantaneous alarm (no alarm delay), no zone is set in pre
alarm mode, and no zone is set in auto reset of first alarm.
Delays:
•Minimal duration of pre alarm (if not memorised): 10seconds
•Minimal duration of alarm (if not memorised): 30 seconds
•Delay of alarm: 60 seconds
•Duration of active reset of detectors (detectors not power supplied): 5 seconds
•Duration of passive reset of detectors (post-reset): 5 seconds

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Options:
•Options pre alarm/alarm: - Fault does not active pre alarm.
- Alarm output memorised and pre alarm
temporised
•Earth/buzzer fault: - Earth fault enabled.
- Buzzer memorised, sound until the activation of SILENCE
BUZZER or RESET.
•Aux. Output configuration: - output is active if presence of ENABLE or
SILENCE BUZZER.
•Several options: - Pre alarm activates alarm delay.
- SILENCE BUZZER influences only buzzer.
- SILENCE BUZZER does not deactivate automatically after
10mn.
•Thresholds/detectors type: FARE (SD3 detectors range)
4-3 VERIFY/MODIFY CONFIGURATION OF ZONES
In order to visualize and/or modify the configuration of the zones activate the
configuration mode with jumper JP2 and select with key SZ (key RESET) the
parameter to visualize and/or modify.
NOTA: Configuration mode of zones is indicated by the ignition of the leds
corresponding to the parameters 1-3.
1) CONFIGURATION OF THE ZONES IN INSTANTANEOUS:
The zones set in instantaneous activate immediately signalizations/outputs of pre
alarm or the signalizations/outputs of alarm.
The zones that are not set in instantaneous activate the alarm outputs with a delay
that starts when the alarm occurs.
Delay: 0 to150 seconds (see par.4.4).
SA
SB
SO
ST
SZ
CA
BD
1
2
3
4
5
Select with the keys [SA], [SB] the
configuration to be applied to the 2 zones.
Led [A] and [B]: if on, it indicates that the
zones are set in instantaneous.
NOTA: the push-buttons zones are
normally programmed in instantaneous
(led on).
2) CONFIGURATION OF ZONES WITH MANAGEMENT OF AUTO RESET
OF THE FIRST ALARM:
The zones set in this mode have following principles:
a) The first alarm is not registered but activates an internal countdown of 3 seconds.
b) If within this time a new alarm occurs on another zone it is registered as a true
alarm (AND of two alarms generates true alarm) but if 3 seconds delay has expired
ALPHA 2 will apply a reset on detection lines.

OPERATING & INSTALLATION
MANUAL - Rev.2 Index : E
Date : 30/07/2007
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c) After reset, a 5 minutes internal countdown will be activated, if within this time an
alarm occurs on whichever zones the alarm will be registered as a true alarm. If no
alarm occurs within this time the function alarm filter is restored.
SA
SB
SO
ST
SZ
CA
BD
1
2
3
4
5
Select with the keys [SA], [SB] the zones
on which you want apply the function of
auto reset of the first alarm.
Led [A] & [B]: If on, it indicates that the
function is applied on the selected zone.
NOTA: Avoid applying the function of auto
reset of the first alarm on the zones
anticipated for push-buttons management.
3) CONFIGURATION OF ZONES WITH MANAGEMENT PRE ALARM MODE:
The zones set in pre alarm mode have following principles:
a) If an alarm occurs from a single detector (current under the thresholds of alarm
and over the threshold of pre alarm; threshold selectable in configuration of options)
ALPHA 2 will not register an alarm but a pre alarm.
The pre alarm is indicated by the blinking (long ignition/short extinction) of led of
alarm of zone and by the sound of the buzzer.
In pre alarm conditions the alarm outputs are not activated.
If ALPHA 2 has a factory setting (can be modified in par.4-5) the pre alarm will be
managed like alarm delayed, it means that after an internal countdown that starts
when pre alarm had occurred the pre alarm becomes alarm.
b) But if another alarm occurs or a push-button is triggered (current over the
threshold of alarm) the alarm outputs are activated directly.
S
A
SB
S
O
S
T
S
Z
C
A
B D
1
2
3
4
5
4-4 VERIFY/MODIFY CONFIGURATION OF DELAYS
In order to visualize and/or modify the configuration of the delays activate the
configuration mode with jumper JP2 and select with key ST (key SILENCE BUZZER)
the parameter to visualize and/or modify.
NOTA: Configuration mode of delays is indicated by the blinking of the leds
corresponding to the parameters 1-4
1) CONFIGURATION OF MINIMAL DURATION OF PRE ALARM
ACTIVATION:
It is the time that determines the minimal duration of activation of pre alarm (if it is not
set in memorised mode)
Select with the keys [SA], [SB] the zones
on which you want to apply pre alarm
mode. Led [A] & [B]: If on, it indicates
that on the corresponding zones the pre
alarm mode is applied.

OPERATING & INSTALLATION
MANUAL - Rev.2 Index : E
Date : 30/07/2007
Page : 17/32
NOTA: It is possible to set aux. outputs as repetition of pre alarm (see par.4-5)
SA
SB
SO
ST
SZ
C A
B D
1
2
3
4
5
Select with the key [SA], [SB] the time you
want to be applied (0 to 150 sec.)
Led A on: 10 seconds
Led B on: 20 second
Led C on: 40 seconds
Led D on: 80 seconds
The final time is the sum of the times
corresponding to the leds that are lit.
2) CONFIGURATION OF MINIMAL DURATION OF ALARM ACTIVATION:
It is the time that determines the minimal duration of activation of the alarm outputs (if
they are not set in memorised mode).
SA
SB
SO
ST
SZ
C A
B D
1
2
3
4
5
Select with the keys [SA], [SB] the time you
want to be applied (0 to 150 sec.).
Led A on: 10 seconds
Led B on: 20 seconds
Led C on: 40 seconds
Led D on: 80 seconds
The final time is the sum of the times
corresponding to the leds that are lit.
3) TIME OF DELAY ACTIVATION ALARM:
It is the time that determines the delay of activation of the alarm outputs in case of an
alarm that had occurred in a zone set to this function.
SA
SB
SO
ST
SZ
C A
B D
1
2
3
4
5
Select with the keys [SA], [SB] the delay
you want to be applied (0 to 150 sec.).
Led A on: 10 seconds
Led B on: 20 second
Led C on: 40 seconds
Led D on: 80 seconds
The final time is the sum of the times
corresponding to the leds that are lit.
4) DURATION OF ACTIVE PHASE OF RESET LINES/DETECTORS:
It determines the duration of the active phase of reset during which reset puts
detectors lines out of voltage.

OPERATING & INSTALLATION
MANUAL - Rev.2 Index : E
Date : 30/07/2007
Page : 18/32
SA
SB
SO
ST
SZ
C A
B D
1
2
3
4
5
Select with the keys [SA], [SB] the time
you want to be applied (0 to 75 sec.).
Led A on: 5 seconds
Led B on: 10 second
Led C on: 20 seconds
Led D on: 40 seconds
The final time is the sum of the times
corresponding to the leds that are lit.
NOTA: the active phase of reset is followed by the passive phase of POST-
RESET, during which (voltage present) ALPHA 2 ignores the eventual conditions of
alarm and fault. The phase of post-reset can be set at 5 or 15 seconds (see par.4-5) ,
actually according to EN normative panel must recover its normal state within 20
seconds (end of active reset + post-reset).
4-5 VERIFY/MODIFY CONFIGURATION OF OPTIONS
In order to visualize and/or modify the configuration of the options activate the
configuration mode with jumper JP2 and select with key SO (key DISABLE
SOUNDERS) the parameter to visualize and/or modify.
NOTA: Configuration mode of options is indicated by the blinking of the leds
(long ignition / short extinction) corresponding to the parameters 1-5
1) OPTIONS PRE ALARM/ALARM:
SA
SB
SO
ST
SZ
C A
B D
1
2
3
4
5
Through keys [SA], [SB] it is possible to enable/disable the following options:
Led A:
If on, it indicates that a fault condition (except from CPU fault) will activate general
pre alarm (If pre alarm mode is set in temporised mode, ALPHA 2 will activate the
countdown corresponding to delay of alarm, so that general alarm will be activated by
the end of the countdown).
Led B:
If on, it indicates that the pre alarm is not temporised but memorised (only RESET
will cancel pre alarm).
Led C:
If on, it indicates that the alarm outputs are not temporised but memorised (only reset
will deactivate the alarm outputs), refer to par.4-4 point 2 to visualize/modify the
duration of the alarm outputs activation.
Led D:
Not used, remains off

OPERATING & INSTALLATION
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Date : 30/07/2007
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NOTA: It is necessary to choose the option C(factory setting) to comply with
EN normative as automatic reset of alarm outputs is prohibited; it is required to reset
manually the alarm actuators.
2) OPTION EARTH FAULT:
SA
SB
SO
ST
SZ
C A
B D
1
2
3
4
5
Through keys [SA], [SB] it is possible to enable/disable the following options:
Led A:
Not used, remains off.
Led B:
If on, it indicates that the control of earth fault is disabled. But if it is enabled (factory
setting) the corresponding fault led will switch on as soon as one of the parts of the
system is found in electrical continuity towards earth.
Led C:
Not used, remains off.
Led D:
Not used, remains off.
3) CONFIGURATION OF ELECTRONIC AUXILIARY OUTPUT
SA
SB
SO
ST
SZ
C A
B D
1
2
3
4
5
Through keys [SA], [SB] it is possible to program auxiliary output as repetition of the
following conditions:
Led A Led B Led C Formulation:
off off off The output is normally active; it is deactivated if
whichever fault conditions occur.
on off off The output repeats the memorised alarm conditions
(only manual reset will deactivate the output)
off on off Power/fuse faults activate the output
on on off The output is activate if DISABLE (zones or sounders
line) or SILENCE BUZZER occur
off off on the output repeats general pre alarm conditions
on off on the output repeats pre alarm/alarm conditions of zone 1
off on on the output repeats pre alarm/alarm conditions of zone 2
on on on
Not significant

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Date : 30/07/2007
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Led D:
Not significant
4) CONFIGURATION OF PRE ALARM AND SILENCE BUZZER OPTIONS
SA
SB
SO
ST
SZ
C A
B D
1
2
3
4
5
Through keys [SA], [SB] it is possible to enable/disable the following options:
Led A:
If on, it indicates that pre alarm condition generates delay of alarm: in pre alarm case
the countdown corresponding to delay of alarm starts; alarm is activated by the end
of the countdown. If off, it indicates that pre alarm will not generate alarm.
Led B:
If on, it indicates that SILENCE BUZZER key affects buzzer only (factory parameter).
If off, it indicates the key will affect also the actuator outputs (if temporised).
Led C:
If on, it indicates that buzzer is automatically deactivated after 10 minutes.
Led D:
If on, it indicates that the duration of POST-RESET (inhibition of alarm/fault till the
end of cycle of reset) is 15 sec. If off, it indicates that the duration is 5 sec. (see
par.4-4 point 4)
5) CONFIGURATION OF PRE ALARM/ALARM THRESHOLDS
SA
SB
SO
ST
SZ
CA
BD
1
2
3
4
5
Through keys [SA], [SB] it is possible to enable/disable the following options:
Led A Led B Threshold of pre alarm Threshold of alarm End of line resistor Detectors type
off off 21mA 32mA 3,9Kohm ¼ W FARE (SD3)
on off 21mA 36mA 4,7Kohm ¼ W others
off on 12mA 21mA 4,7Kohm ¼ W others
on on Not significant