Application Guide 001 - Morley-IAS

Morley-IAS by Honeywell ZXSe Fire Panel BS7273-4 Category A

Application Guide 001

Contents:

Application note information: 2

Basic BS7273-4 Category A compliant C&E example 2

Zoned BS7273-4 Category A compliant systems 3

3 Zone BS7273-4 Category A compliant C&E example 3

240Vac door systems 4

Door supply interfacing and power implications 5

Using the auxiliary relay for feedback to either an input module or indicator 6

Application note Information:

This is a guide to demonstrate how to set up the ZXSe fire panel to meet basic BS7273 part 4 category A requirements.

Basic BS7273-4 Category A compliant C&E example:

At the simplest and most basic level a compliant system could be configured to release the fire doors under the following conditions:

a) In the event of a fire being detected. b) In the event of any fault on the system. c) In the event of any disablement on the system.

Although this method will satisfy BS7273 Category A requirements; it means that doors will only be held open if the whole system were fault free, with no disablements and no fires.

1) Set all Input devices to zone 1

2) Setup output devices into zone1 and ensure the module outputs are set to “1”

3) Set ringing pattern 1 to zone 1

4) Set all output modules and sounders to ringing pattern 1 and continuous events to 10 for the output modules.

The panel must now be configured through the panel menu system as follows:

Panel fault event configuration:In the panel enter commission mode ->events -> General and set the “Fault event” to 10.

Panel disablement event configuration:In the panel enter commission mode ->events -> General and set the “Disablement event” to 10.

This will configure the panel to release the door modules upon a Fire, General fault or General disa-blement.

Zoned BS7273-4 Category A compliant systems

At the next level of complexity, when a building is divided into zones a suitable approach is to make fires in a given zone release doors only in that zone. It is likely that some held doors may not be within a zone but rather located on the border between two zones, therefore the release of the door may be required if an event were to occur in either zone. This can be achieved by using individual events to release output modules and is not covered in this application guide.

Consideration should also be made to controls such as gas shut off valves which should be placed in a separate zone to the door release modules.

3 Zone BS7273-4 Category A compliant C&E example

1) Setup devices into correct zones

2) Setup output devices into correct zones and ensure the module outputs are set to “1”

3) Setup ringing pattern 1 for zone 1



5) Using the output editor assign modules to the correct ringing pattern and set continuous events to 10 which will be used for the “General fault” and “General disablement” triggers.

The panel must now be configured through the panel menu system as follows:

Panel fault event configuration:In the panel enter commission mode ->events -> General and set the “Fault event” to 10.

Panel disablement event configuration:In the panel enter commission mode ->events -> General and set the “Disablement event” to 10.

This will configure the panel to release the door modules upon a Fire, General fault or General disablement.

240Vac door systems

The BS7273 module is preliminary designed to interface with 12 – 24VDC door systems but with the addition of an external DC Supply and an external mains rated relay 240V door holders can be employed.

(The BS7273 module has built in fly back/EMF protection therefore an external protection diode is not required.)

The external DC supply is used to power the BS7273 module and drive the external relay. It is important not to use the BS7273 modules auxiliary relay output to control the external relay as if the feed to the relay were shorted this would have the same effect as holding the doors open. The auxiliary relay can only be used for indication purposes only.

A suggested suitable PSU and enclosure is the Honeywell HLS-PSU-TR20 (2 amp 24VDC). (The relay can be mounted inside the enclosure)

Important: The transformer rectifier output when unloaded may reach voltages of up to 29V please ensure that the relays used can support this voltage.

A suggested suitable mains relay:

Door supply interfacing and power implications

The BS7273 module is not an addressable loop powered module, it is a module that monitors the loop communications and door power supply for faults; it has been designed so that it has a minimal impact on the fire alarm panel and loop and must therefore be powered by the 12 – 24V DC supply that powers the door holders. Care must be taken to design the system so that it can supply enough power to drive the door holders and the BS7273 modules. Each BS7273 module draws between 20 – 35mA depending on input voltage and configuration.

Using the auxiliary relay for feedback to either an input module or indicator

The auxiliary relay can be used to provide feedback that the BS7273 module has released the doors.

The relay will “open” when the doors are released.

The doors will be released automatically under the control of the BS7273 module under the following conditions:

1) There is a loop communication fault2) The door supply voltage is low.3) The module control (pins 5 &6) are open circuit.

The CIE may not be aware of some of the conditions and you may want to use an input module to indicate this. One way to accomplish this is to use the relay output of the BS7273 module and feed it to the input of a loop module such as a M221E as shown below.

Charles AvenueBurgess HillWest SussexRH15 9UF UK

T: +44 (0) 1444 235 556F: +44 (0) 1273 376 894 E: [email protected]

For further details on any other Morley-IAS products please contact your local distribution point, Morley-IAS Business Manager orvia our contact details. Morley-IAS by Honeywell a real choice for fire solutions, committed to supporting our device partners.

Every care has been taken in the preparation of this Custoemer Information but no liability can be accepted for the use of the information therein. Design features may be changed or amended without prior notice. © Morley-IAS by Honeywell 2013

Caburn House2B Brooks RoadLewes, E. SussexBN7 2BY UK

T: +44 (0) 1273 897 000F: +44 (0) 1273 376 894 E: [email protected]

Every care has been taken in the preperation of this Customer Information but no liability can be accepted for the use of the information therein. Design features may be changed or amended without prior notice. © Morley-IAS by Honeywell 2013Every care has been taken in the preparation of this Customer information but no liability can be accepted for the use of the information therein. Design features may be changed or amended without prior notice. Morley-IAS by Honeywell 2014

Application Guide 001 - Morley-IAS

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