Secondary Power Supply; Battery Information - Tecnoalarm Tecnofire TFA2-596 Installation Manual

Battery information

The batteries must always be two. Never use batteries of different
manufacturers and capacities. Capacities lower than 12Ah,
besides reducing the autonomy, distort its resistance values
causing possible improper failure signaling.
In accordance with the standards EN 54, it is mandatory to block
the two batteries using the provided fi xing bracket.
The bracket must be screwed on the casing.
Self-regulation of the charging voltage
The power supply reads the temperature of the battery via the
NTC (Negative Temperature Coeffi cient) probe and adjusts the
charging voltage of the batteries according to the themperature
measured. The NTC probe must be connected to the dedicated
polarized connector, the sensing end of the probe should be
attached to the battery casing using an electrical tape.
Automatic disconnection
In the absence of the primary power supply voltage
(230V AC mains), the batteries automatically assume the power
supply of the system. When the battery voltage drops to a value
<18V for a duration of 15 minutes, the batteries automatically
disconnect, to prevent their deep discharge and consequent
functional degradation.
Battery bracket fastening
Insert the bracket into the two slots located at the bottom.
Rotate the bracket blocking the batteries and fasten
the bracket using the supplied screws.
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TFA2-596 - TFA4-1192

4-5 - Secondary power supply

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T4 OUT6 SIR L1A L1B L2A L2B
OUT5
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+ - A B
BUS MASTER
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L3A L3B L4A L4B