Central block is a part of a multi-component fire control unit PPU “Gefest”.
CB is a non-addressable device and it is needed for control and maintenance of:
- alarm and evacuation control systems of 1-st and 2-nd types
- smoke and gas removal units
- engineering and technological units
- emergency lighting
Maintenance and control of devices are practiced via two radial connection lines (CL) that are included in multi-component control unit PPU “Gefest”.
CB has one control direction and 2 CL for control of executive devices.
CB implements launching of industrial automation devices via signals from
- Fire receiving and control unit (PPKP);
- Distant start devices (UDP);
- Buttons from the front panel;
Built-in light indication and sound signalizing about received notifications and delivered signals corresponded to GOST R 53325-2012 requirements.
CB controls two connection lines, constantly maintaining them for failure or short-circuit.
There is a possibility of setting the delay time for a command execution, independently for each CL.
There is a protection against illegal access to control buttons with the help of Touch Memory keys (up to 5 units).
There are three outputs for transfer of information about CB condition to external devices.
There are two feeding inputs in CB and it controls their condition.
Technical Features
Technical charasteristics:
|
Technical feature |
Value |
|
Electricity supply: - Supply voltage - total supply current (without considering in CL), not more than: In operating mode In «Start» mode |
from16 to 27,6 V
50 mА
100 mА |
|
Possible load current of each CL (in any polarity |
2,4 А |
|
Варианты задержки пуска исполнительных устройств в каждой ЛС |
0, 10, 20, 30, 40 с
|
|
Допустимая нагрузка на выходы «Пуск», «Неиспр.» и «Авт. откл.»: voltage, not more than:
Current intensity , not more than: |
= 60 V 0,1 А |
|
Cover protection degree |
IР30 |
|
Temperature range |
From –5 to +55°С |
|
Relative humidity (under +40°С) |
93 % |
|
Sizes, не более, not more |
160х115х40 mm |
Executive devices of fire automatics can be used as periphery devices, which are connected to CL directly or via commutation and diagnostics devices (UK-D of different implementations) or other devices of PPU “Gefest”.
The choice of periphery devices is defined by necessity of control of exact devices of industrial and fire engineering.