6
Overview
Power supply stations
1.2
The system parts and definitions
Switching power supply: this unit, starting from the mains power supply (230V
) it connects to,
supplies the board with a 24V (27,6V
) stabilized current capable of feeding the control panel and
recharging the batteries. The power-supply module is located below the mother board and is EN54-4
compliant. the mains power supply (230V
) the primary power source of the system. Refer to paragraph
4.2 Internal devices.
Batteries: the secondary power source of the system. The power supply station enclosure houses two lead
batteries @ 12V 7Ah (depending on the model) connected in series. The system monitors the battery
status (efficiency and charge). In the event of inefficient or low battery conditions, the system will signal
fault (A2 amendment). In the event of primary power failure (230V
), the batteries will take over
automatically. If the problem persists for a long period thus causing the battery charge to drop below the
minimum value required, they will be shutdown automatically in order to avoid damage. Refer to paragraph
5.3 Connecting the batteries.
Thermal probe: an accessory tool connected to the panel and attached to the battery pack. This device
monitors the temperature of the battery pack and regulates the battery charge accordingly. Refer to
paragraph 5.4 Thermal probe.
Loop: all the peripheral devices of the system must be connected in parallel to the loop circuit (2 pole
shielded cable). The circuit is considered a "loop" because the wiring path starts at the loop-out terminals,
passes through all the protected areas, connects all the system devices in parallel and returns to the loop-
in terminals. The panel controls and communicates with the loop devices via digital protocol. The loop
utilizes the same two poles for the power supply to the system devices and the two-way communication
channel.
1.3
How to use the power supply station
The power station supplies 24V
by means of the “OUTPUT” terminals.
To signal faults are available:
• the “FAULT” relay, which is activated together with the corresponding LED on the panel when the station
detects at least one fault.
• the “MAINS” relay, which is activated together with the corresponding LED on the panel when there is at
least one mains fault.
The loop connection allows the power station to be supervised by the control panel and to report the loop
activity by the LEDs on the front panel.
For details, please refer to and to paragraph 4.2 Internal devices and to paragraph 4.3 Signalling LEDs.
1.4
The SmartLevel power supply stations
Product models:
• SPS24060S - power-supply unit with internal 60W @ 27.6V
switching power-supply module and
housing for 7Ah, 12V batteries
• SPS24160S - power-supply unit with internal 160W @ 27.6V
switching power-supply module and
housing for 17Ah, 12V batteries