Fusion FBUL NP12-12, Инструкция по установке и наладке

Страница: 41 / 88

Fusion Installation & Commissioning Manual Approved document No UI-FBU-01 issue 3.0
41
COMMISSIONING
Radial circuit options
The radial circuits are initially configured as normal conventional detection circuits. There are
three possible modes of operation which can be configured in the control panel parameters.
CONV = conventional detection using shottky diode detector removal monitoring
TWIN = twin wire operation whereby detectors and sounders may be fitted on the same pair of
cables. Special detector bases and call points are required for this function (refer to list on p 35)
SDR = sounder circuit function. The circuit can be used as a conventional polarity reversal
sounder circuit up to 500mA load
Refer to the wiring diagram on next page for connection details. All three circuits utilise a 4K7 end
of line resistor. No more than 32 conventional devices or sounders should be added to any radial
circuit.
Zoning
Radial circuits adopt a default fire detection zone during initialisation depending on the address of
the PCB. Zone numbers can be altered in the panel configuration. Note:- In the programming the
circuit will be referred to as a radial number which remains unchanged whichever zone the radial
is programmed . Radial circuit zones can be seamlessly shared with addressable device zones to
accommodate existing wiring layouts in upgraded systems.
Input and output attributes
For CONV and TWIN type radials a number of input attributes can be adjusted in the panel con-
figuration. These are mostly to assist with interfacing or compatibility with legacy systems.
IMPORTANT ! certain attributes which can be used may be in contradiction with current EN54
and BS 5839 codes of practice. If these apply they should be noted on the commissioning certifi-
cate as variances and the implications understood by the system user.
Attribute Default
setting
Alternate
setting
Possible conflict
with EN54 re-
quirements
Notes
Fire latching latching Non latching If applied to
smoke detectors
Useful for inter-
facing panels
Short as Fire Short cct gives
fault condition
Short circuit
gives Fire
Non –compliant Interfacing and
old call points
Intrinsically safe
mode Normal mode Intrinsically safe Adjusts threshold
by 300R for ISB
Silent mode Normal mode Silent mode If applied to fire
detection devices
Used for informa-
tion alarms
Priority alarm Priority alarm No priority alarm 220R MCP over-
rides delayed
zones
Detector removal Schottky Off—Zener If applied to
smoke detectors
Ensure correct
bases are used