Conventional loop interface - BNB-330

Add to my manuals
2 Pages

advertisement

Conventional loop interface - BNB-330 | Manualzz

Conventional loop interface - BNB-330

AutroSafe interactive fire detection system

Product datasheet

Features

Interfaces up to 32 conventional detectors of the 15V or 24V type to the AutroSafe interactive fire detection system

Easily plugged onto a standard mounting rail

Designed to meet EN 54 requirements and conforms to CE standards

Galvanic isolation between the AutroSafe detection loop and the 24V conventional sub loop

Alarm and fault indicators

With SelfVerify function for reduced maintenance/testing and increased reliability

Description

BNB-330 is a modular interface designed to monitor conventional fire detectors of the current increase type and to convey their status to the AutroSafe fire alarm control panel. The conventional detectors are connected to a two-wire sub loop. The sub loop is monitored for broken line by an end of line unit BNY-330. As default a short circuit of the sub loop will give a fault warning, but the unit may be configured to give an alarm instead.

Conventional loop

The alarm current level is above 25mA, and the short circuit level is below 35ohm. The maximum working current drawn is 10mA.

Broken line monitoring is performed by turning the power off for

40 ms on the sub loops. The BNY-330 will respond to this by drawing a current from the sub loop. Any devices connected to the sub loop must be capable of filtering out the 40ms voltage drop. Standard voltage on the sub loop is 15 VDC. Shorting terminal 7 to terminal 6 (0V) will change the sub loop voltage to 24

VDC.

To prevent a disablement of any manual call points, they have to be connected to a separate conventional loop interface.

The unit has LED indicators showing power present, fault or alarm. On alarm condition the open collector T-output activated.

A low voltage fault is entered if the output is less than 12,5V when the 15V option is selected. Also, a low voltage fault is indicated if the output is less than 18V when the 24V option is selected.

SelfVerify: the ability to initiate alarm signal is regularly checked.

Connections

The unit must have a separate 24V supply. This 24V may come from the connection points 5 and 6 or by stacking it together with other AutroSafe internal modules that have power through their

32p parallel connector. Do not use both options at the same time.

NOTE: To ensure correct addressing, when stacking the BNB-330 together with other internal modules, make sure that it is mounted at the top, above all other internal modules. (Refer to the table in the right column) A loss of 24V to the BNB-330 will cause power failure to the sub loop. It will also cause a break in the AutroSafe detector loop, therefore the following guidelines apply: If more than one unit is used remotely in a detector loop, they must be connected together on the main detector loop without any detectors between, or they must have a redundant 24V power supply. If a total of more than 32 detectors are connected to the conventional sub loops of these units, they must have a redundant 24V power supply in order to avoid that a single fault causes loss of more than one 32 detectors.

Connections/indicators

Front view when mounted on rail

Screw terminal 10

Screw terminal 1

Green Red indicator

Yellow indicator

H5 (24V) indicator

H1(Alarm)

H4 (fault)

Red indicator (H1) – The unit is in Alarm

Yellow indicator (H4) – The unit is in Fault

Green indicator (H5) – The presence of 24 VDC

The module has the following connections:

Screw terminal no. Signal

5 + 24V Input

6 0V

7

8

Conventional loop 15V/24V select

T-output / Open collector

9

10

+ conventional loop

- conventional loop

116-P-BNB330/CGB, Rev. D, 2009-07-09 Protecting life, environment and property…

Conventional loop interface - BNB-330

Technical specifications

Dimensions BNB-330

Weight BNB-330

Dimensions BN-330

Weight BN-330

95x89x32 mm

81 g

175x125x125 mm

180 g

Material Polycarbonate

Colour

Current consumption (Idle), loop

Light grey (RAL 7035) transparent lid

0,3mA

Supply voltage

Current consumption idle/alarm:

Conventional loop voltage

21V - 28V

20mA / 80mA

15V or 24V

Detector idle load conv. loop max. 10mA

Conventional loop resistance Max. 30 Ω

Alarm current conv. loop

Load T-output

Temperature min. 24mA max. 75mA

- 20° +70°C

Humidity (non condensing)

Degree of protection

Max. 95% RH

IP67

Maintenance None

Service Replace if faulty

Installation overview

-

Version BN-330

The BN-330 consists of a

BNB-330 module mounted on a

DIN rail inside a PC box. Optionally more BNB-330 modules can be mounted in the same box.

Part number

116-BNB-330

116-BN-330

116-BNY-330

Description

Conventional loop interface

(module).

End of line unit included.

Conventional loop interface

(box)

End of line unit (separate)

Dimensions BN-330 (mm)

AUTRONICA FIRE AND SECURITY AS

Head office, NO-7483 Trondheim, Norway Tel: +47 73 58 25 00, fax: +47 73 58 25 01, e-mail: [email protected]

Oil and Gas division, Stavanger, Norway

Tel: +47 51 84 09 00, fax: +47 51 84 09 99

Maritime division, Spikkestad, Norway Tel: +47 31 29 55 00, fax: +47 31 29 55 01

Visit Autronica Fire and Security AS’ website: www.autronicafire.com

advertisement

Was this manual useful for you? Yes No
Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Related manuals

Download PDF

advertisement