MINIEXFIRE 2019-06-11T12:17:53+00:00

Miniexfire

MINIEXFIRE

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  • commissioning fire and gas Miniexfire Area test aerosol
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Five years after EXFIRE360 control panel launch, SV enlarged its range of power plants with the compact version of its modular system, win order to complete the applications range for small installations.

Why mini?

MINIEXFIRE is a mono-chassis control panel able to host up to 10 boards of input / output with their touch-screen display graphics: this  makes MINIEXFIRE  particular. The power supply system EN 54-4 is transferred to an independent unit (called EXPSU20) with a maximum redundant power of 20 A . MINIEXFIRE is housed in a cabinet  1000 mm x 600 mm x 400 mm, provided with the power equipment and the relative battery capacity up to 80 Ah (dimensions 400 mm x 600 mm x 400 mm).
MINIEXFIRE is designed for wall mounting and is ideal for such environments where the composition of the plant or the narrowness of the space do not require a closet floor.

Which are its advantages?

MINIEXFIRE takes from EXFIRE360 the features and performances: modularity, simplicity of operator interfaces (which are graphic display for each card), CPU redundancy, diagnostics, automatic addressing, hot back-up, CAN inter-chassis communication, supervision with Enterprise software, interfacing to third party systems.

EXFIREmini keeps also from the mother panel its certifications (with the related changes due to the smaller size), making it usable for fire detection, gas detection and automatic fire extinguishing.

EXFIREmini eventually spins off the unit power into an independent unit, sold separately from the panel.

Regarding the regulatory issues, the panel complies not only with the mandatory requirements EN 54-2, EN 54-4 (fire detection systems) and EN 12094-1 (extinguishing systems), EN 60079-29-1 (ATEX Gas detection systems) but it is also certified to carry out a number of optional features regulated by the same standards and commonly required in fire fighting industry.

Just consider, for example, the availability of a standardized interface for input and output for two-way communication of the panel with the third-party systems, or the control of fire protection systems, or, even, the group shutdown reserves management and supervision of reported pressure (high / low) of the systems themselves.

EXFIRE360 panel was thus developed by implementing technological solutions to meet the requirements of EN54-2, EN54-4, EN12094-1, EN60079-29-1, GOST, UL864 (soon)  and IEC61508 TUV, protocol used Hochiki APOLLO.

This section introduces the implementations performing on EXFIRE360 control panel and on its compact version to meet the requirements of paragraphs 4.29 (release of extinguishing agents to discharge selected areas) and 4:30 (activation of alarm devices with different signals)  EN12094-1 standard.

Compared to EX6EV-C board currently certified for switching off, SV is going to offer a new configuration where the role of the individual channels of the input / output is not first defined  and where the logics are performed directly from EXCPU360.

To explain this new configuration please refer to the diagram of a detection and extinguishing system of the two areas shown in the following figure:

Optional Requirements

The boards used to manage this system will be EX6EV 2, 2 and 2 EX6SO EX8SI (or a EXLOOP-E in addition to the sole part of detection).

From a detailed analysis of the individual signals, it is possible to notice that:

The detection is performed by acquiring at least two signals of conventional type for the area (or tab EX8SI EX6EV) or by addressable type devices  (card EXLOOP-E). The logic activation of the solenoids will be defined in the program control unit configuration (SV Protection);

The discharge buttons will be acquired under a conventional input (EX8SI or EX6EV). The configuration program of the plant will be modified so each input channel is defined as a specific feature (Manual release, abort button, etc);

The same principle will be used also for all the other inputs (buttons interruption and prolongation emergency mode selector switches automatic / manual selector main / reserve, pressure switches for high and low pressure, general signs of supervision of the system);

Regarding the outputs, the board will remain EX6EV, the responsible board for the control of the solenoids of the area (directional valves) and it can also activate the optical / acoustic warning pre-discharge and discharge devices (4.30). The functionality of each output will be defined in the program control unit configuration. An EX6EV board will be provided for each discharge zone;

EX6SO boards will manage the command to the solenoids of the benches of main cylinders  / reserve common to both extinguishing systems, as well as the implementation of any additional alarm devices. The function of each output will be defined through SV Protection;

To meet the current requirements according to which a generic failure should not affect more than one zone of discharge, the commands to the common solenoids will be redundant (you will then need 8 outputs in total, for this we will use 2 EX6SO );

The control of auxiliary devices (such as block ventilation, shutters closure, etc.) will be carried out through the outputs of unsupervised EX6EV board and the logic of intervention will be freely programmable by the user through SV Protection;

The control on the system status and the logic of activation will be executed through the control unit EXCPU360, according to the functionality defined in the configuration program;

For example, the inhibition of the discharge in the presence of a fault on a device of the emergency extension will be determined by evaluating the status of all devices configured as holdable in Protection. In this way, it is also possible to set multiple lines of input or output with the same functionality;

The reports about the status of the discharge zone (enabled / release / fault / etc.) will appear on the display board MODLCD EX6EV relative;

It will also be possible to change the settings menus on the same display  (delayed discharge / inhibition time restore / etc.) for each extinguishing zone and to disable (at access level 3) the charge itself.

The above mentioned example is related to a complete configuration. With the same logic it will be possible to manage less complex plants (for example a single area with an high pressure switch, a discharge button and a single solenoid to pilot).

Unlike the certified configuration (locked on the use of board and a EX8SI EX6EV adjacent) the new version will cover the plant and regulatory requirements with a single board (EX6EV) to be expanded with additional input boards (EX8SI or EXLOOP-E) or output (or EX6EV EX6SO) depending on the characteristics of the system.

 
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