Bosch 520 Series Bedienungsanleitung
Automatic Detectors LSN improved
FAP‑O 520 | FAP‑O 520‑P | FAP‑OC 520 | FAP‑OC 520‑P
en Operation Guide
Automatic Detectors LSN improved Table of contents | en 3
Bosch Sicherheitssysteme GmbH Operation Guide 2019.11 | 4.0 | F.01U.025.877
Table of contents
1Product Description 4
1.1 Performance Features 6
1.2 System Description 7
1.3 Configuration of the Detector 7
1.4 Functional Description of the Sensor Technology 7
1.5 LED Operation 8
2Planning Notes 9
2.1 General Notes 9
2.2 Network Topologies for LSN Improved 9
3Installation 11
3.1 Ceiling Mount Back Box 11
3.2 Detector Base/Detector Base with Relay 12
3.3 Address Allocation 15
3.4 Detector and Trim Ring 15
3.5 Built-in Housing for Concrete Ceilings 17
3.6 Surface Mount Back Box 17
3.7 Remote indicator 18
4Programming 21
5Maintenance and Service 23
5.1 Notes for the Service 24
5.2 General Notes for Detector Testing 24
5.3 Inspection Procedure for FAP‑OC 520 25
5.3.1 1. Alternative 25
5.3.2 2. Alternative 25
5.4 Inspection Procedure for FAP‑O 520 26
5.4.1 1. Alternative 26
5.4.2 2. Alternative 26
5.5 Repair 27
5.6 Disposal 27
6Technical Data 28
6.1 Detector and Trim Ring 28
6.2 Detector Base 29
6.3 Mounting Boxes 29
6.4 Remote indicator 30
7Appendix 31
7.1 Abbreviations 31
7.2 Order Overview 31
7.2.1 Detector and Trim Ring 31
7.2.2 Detector Bases/Remote indicators 32
7.2.3 Mounting Boxes 33
7.2.4 Service tools/accessories 33
4en | Product Description Automatic Detectors LSN improved
2019.11 | 4.0 | F.01U.025.877 Operation Guide Bosch Sicherheitssysteme GmbH
1 Product Description
Figure1.1: 520 Series Fire Detector
The 520 Series Fire Detectors combine the advantages of the LSN improved technology with
the aesthetic benefits of flush-mounted installation and the option to choose the color. The
detectors can be connected to any LSNi fire panel. They can also be connected to all classic
LSN fire panels.
The detectors with associated trim ring are available in the versions white and transparent
with color toning inserts. Through the use of the supplied color toning inserts, optimum
adjustment to many different environments becomes possible.
The lack of an optical labyrinth and their easily-cleaned smooth surface means the detectors
are also suitable for applications in high-dust areas.
The low profile, flush-mounted design allows the use the detectors even in areas that must be
free of protrusions.
Thanks to the geometric arrangement of two separate optical sensor systems, the detectors
are not sensitive to interference, such as that caused by insects. The scattered light volume
that is evaluated by the sensors is located in the free space a few centimeters below the
ceiling.
The contamination level is measured constantly. Contamination of the detector surface leads
to an active adjustment of the threshold (drift compensation) and a fault indication at the
panel in the case of heavier contamination.
The detector is available as a scattered light fire detector only or as a multisensor detector
with an additional gas sensor.
The combination of scattered light detector and gas sensor allows the evaluation of signals
with the help of modern signal processing methods. The result is high immunity against
deceptive alarms and extended application possibilities in environments that are not suitable
for pure scattered light smoke detectors.
The integrated rotary switches allow for an automatic or manual allocation of addresses.
The FAP‑520 Detectors can be connected directly to the Local SecurityNetwork LSN.
Accessories
The 520 Series Detectors are generally mounted flush with the ceiling in false ceilings. The
detector and base are installed in a robust ceiling mount back box. In addition, a housing for
mounting within concrete ceilings can be used.
Automatic Detectors LSN improved Product Description | en 5
Bosch Sicherheitssysteme GmbH Operation Guide 2019.11 | 4.0 | F.01U.025.877
For special applications where recessed ceiling mounting is not possible, a surface mount
back box is available. This is used as an alternative to the ceiling mount back box. The surface
mount back box with damp room seal also allows the detector to be used in a humid
environment. For special applications, e.g. control of an emergency door in accordance with
DIBt, base variants are available with relay. All bases have an integrated strain relief for cables.
The connection terminals are easily accessible. Cables up to 3.3 mm2 in cross section can be
used.
An innovative concept for locking the detector module utilizing the push‑in/push‑out principle
allows very quick and easy insertion and exchange of the click and lock detector.
For the detector test and detector exchange, a special user-friendly service accessory is
available.
Overview of the 520 Series Detectors and Accessories
FAP-O 520-P
FAP-OC 520-P
FAA-500-BB FAA-500-CB
FAA-500-SB-H
FAA-500-TR-W
+
+
FAA-500-TR-P
FAP-O 520
FAP-OC 520
FAA-500
FAA-500-R
+
Figure1.2: 520 Series Detectors and Accessories
Detectors LSN improved:
- FAP-O 520 Optical Fire Detector LSN improved, white
- FAP-O 520-P Optical Fire Detector LSN improved, transparent with color toning inserts
- FAP-OC 520 Multisensor Fire Detector LSN improved, optical/chemical, white
- FAP-OC 520-P Multisensor Fire Detector LSN improved, optical/chemical, transparent
with color toning inserts
- FAA-500-TR-W White Trim Ring for detectors 500 and 520Series
- FAA-500-TR-P Transparent Trim Ring with color toning inserts for detectors 500 and
520Series
LSN Detector Bases:
- FAA-500 LSN Detector Base
- FAA-500-R LSN Detector Base with Relay*
* for connection to the Modular Fire Panel FPA‑5000 only
Mounting Boxes:
6en | Product Description Automatic Detectors LSN improved
2019.11 | 4.0 | F.01U.025.877 Operation Guide Bosch Sicherheitssysteme GmbH
- FAA-500-BB Ceiling Mount Back Box
- FAA-500-CB Built-in Housing for concrete ceilings
- FAA-500-SB-H Surface Mount Back Box with damp room seal
Service Accessories:
- FAA-500-RTL Detector Exchanger for 500 and 520 Series Detectors
- FAA-500-TTL Test Adapter with Magnet for 500 and 520 Series Detectors
1.1 Performance Features
– Fulfills the highest aesthetic demands through the flush-mounting design and the
possibility of color toning
– Smooth, easily-cleaned detector surface
– Quick and easy insertion and exchange of the detector thanks to innovative detector
locking mechanism (click and lock principle)
– Easily-visible two-color LED for display of alarm, trouble and test mode
– Self-monitoring of the sensors, with display on the fire panel:
– Fault indication upon failure of the evaluation electronics or one of the LEDs of the
optical sensor
– Three-stage contamination display (analog value can be read out at service)
– Fault indication in the case of heavy contamination (instead of false alarm)
– Fault indication in the case of CO sensor failure (for the FAP‑OC520)
– Thanks to integrated isolators, the LSN loop will continue to function in case of wire
interruption or short-circuit of a detector
– Active adjustment of the threshold (drift compensation) if the optical sensor becomes
contaminated
– Active adjustment of the threshold (drift compensation) of the chemical sensor
– Increased detection and false alarm immunity thanks to evaluation of the time behavior of
fire and disturbance variables
– Programmable sensitivity, i.e. can be adjusted to the area of operation
– Flexible network structures, including T‑taping without additional elements
– Automatic or manual address allocation with or without auto‑detection via integrated
rotary switches
– Detector individual identification on the fire panel in the case of alarm
– A pre‑alarm is signaled when 50% of alarm threshold is reached (indicator in the event
database of the fire panel).
– Serial number, contamination level, operating hours and current analog values can be
read out from each configured detector
– Activation of an external detector alarm display is possible (not for relay bases)
– Activation of external devices by the relay base is possible
– Easily‑accessible connection terminals
– Service accessories for simple and comfortable detector test and exchange
– When using the FAA‑500‑TTL test adapter, an integrated reed switch automatically
switches the detector into the test mode.
– Can be connected to the LSN fire panels FPA‑1200, FPA‑5000, BZ500LSN,
UEZ2000LSN, UGM2020 and to other fire panels or their receiver modules with identical
connection conditions.
– EN54-7 and EN54-17 certified
Automatic Detectors LSN improved Product Description | en 7
Bosch Sicherheitssysteme GmbH Operation Guide 2019.11 | 4.0 | F.01U.025.877
1.2 System Description
All detectors in the 520 Series are equipped with two optical sensors and a pollution sensor.
The FAP‑OC520 Multisensor Detector contains a gas sensor as an additional detection
channel.
The response sensitivity of the detector can be programmed with the programming software
via the LSN network. All sensor signals are analyzed continually by the internal signal
evaluation processor and are linked with each other.
By linking the optical sensors and the gas sensor, the OC detector can also be used in places
where the work carried out gives rise to small amounts of smoke, steam or dust. The alarm
will only be triggered automatically if the signal combination corresponds with the
characteristic diagram of the installation location that was selected during configuring.
1.3 Configuration of the Detector
1 1
2
3
3
2
4
5
6
Figure1.3: Detector front panel with sensors
2 3
7
Figure1.4: Side view of detector cover
Position Description Position Description
1 Optical sensor 5 Two-color LED:
red = alarm
green = test mode / trouble
2 Receiver (photo diodes) 6 Pollution sensor
3 Transmitter (LEDs) 7 Measuring area
4 CO sensor (only OC-variants)
1.4 Functional Description of the Sensor Technology
Optical sensor (smoke sensor)
The optical sensor (refer to Configuration of the Detector, page 7 (1)) operates according to
the scattered light principle.
8en | Product Description Automatic Detectors LSN improved
2019.11 | 4.0 | F.01U.025.877 Operation Guide Bosch Sicherheitssysteme GmbH
The LEDs (refer to Configuration of the Detector, page 7 (3)) transmit light at a defined angle
into the measuring area (refer to Configuration of the Detector, page 7 (7)). In case of fire, the
light is scattered by the smoke particles and strikes the photo diodes (refer to Configuration of
the Detector, page 7 (2)), which transform the quantity of light into a proportional electrical
signal.
The effects of daylight and commercial lighting sources are filtered out with an optical daylight
filter and by the use of electronic filtering and phase-locked rectification (ambient light
stability: dazzling test EN54‑7).
The various light-emitting and photo diodes of the detector are individually activated.
Consequently, signal combinations are produced that are independent of each other and
ideally suitable for the detection of smoke, which makes it possible to differentiate between
smoke and interference agents (insects, objects). In addition, the time characteristics and the
correlation of the optical sensor signals for the fire or interference detection are evaluated.
Moreover, plausibility checking of the various signals makes it possible to detect errors in the
evaluation electronics and the LEDs.
Chemical sensor (CO gas sensor)
The gas sensor (refer to Configuration of the Detector, page 7 (4), only FAP‑OC520(-P)) detects
mainly the carbon monoxide (CO) that is produced by a fire, but it also detects hydrogen (H)
and nitrogen monoxide (NO).
The basic measuring principle is CO oxidation on an electrode and the measurable current
that arises from this. The sensor signal value is proportional to the concentration of gas. The
gas sensor supplies additional information in order to reliably suppress the disturbance
variables.
The CO sensor is monitored by supervision of the internal capacity. If the capacity lies outside
the permitted range, a malfunction signal is output on the fire panel. In this case, the detector
continues to operate purely as a scattered light smoke detector.
Pollution sensor
The contamination level of the detector surface is measured and evaluated continuously by the
pollution sensor (refer to Configuration of the Detector, page 7 (6)). A three-stage
contamination display can be read out at service (refer to Maintenance and Service, page 23).
1.5 LED Operation
The two-color LED of the detector indicates the operation and alarm statuses.
During the whole life cycle, the sensors are self-monitored and the sensitivity is self-adjusted
according to the programmed threshold. In case the detector is heavily contaminated, a
message is sent to the fire panel.
In case of an alarm, the LED flashes red. The detector is set back to standby if the alarm is
reset via the fire panel and if the cause of the alarm is gone.
LED Operation
Status LED
Standby off
Alarm red, flashes
Trouble off
Test mode green, flashes once every second
Automatic Detectors LSN improved Planning Notes | en 9
Bosch Sicherheitssysteme GmbH Operation Guide 2019.11 | 4.0 | F.01U.025.877
2 Planning Notes
2.1 General Notes
Notice!
The 520 Series Detectors are approved for indoor use only! The detectors must be installed
exclusively in the FAA‑500 Series Bases provided. In addition, the detector base must be
installed in an FAA‑500‑BB Ceiling Mount Back Box or in an FAA‑500‑SB-H Surface Mount Back
Box.
– Country-specific standards and guidelines must be observed during the planning phase.
– The FAP‑OC520, like the FAP‑O520, is planned according to the guidelines for optical
detectors (refer to EN54 and VDS2095).
– A hemispherical space (1) with a radius of 50cm must remain free below the detector
(2).
Care must be taken to ensure that no people, larger animals, plants, opening doors or any
objects intrude into this area and that no parts of the detector surface become covered.
1
50 cm
2
Figure2.1: Radius
– The detector may only be installed in a position which is out of arm's reach.
Minimum installation height recommended by BOSCH: 2.70m.
– The 520 Series Detectors may not be installed in rooms with data transmission by means
of high-intensity infra-red light (e.g. in rooms with IR systems for interpreters).
– The detectors must be mounted so that they are not exposed to any direct sunlight.
– A minimum distance of 50cm from lamps must be maintained.
The detectors may not be mounted in a cone of light from lamps.
– By default, the bases are equipped with a spring for mounting the detector in concrete
and wooden ceilings. This spring is identifiable by the blue marking. For mounting a
detector in a false ceiling panel you can use the additional, softer spring in the package
identifiable by the yellow marking. (Note that this application does not meet EN54-7).
– Maximum permitted air speed: 20m/s.
2.2 Network Topologies for LSN Improved
In an improved version Local Security Network (LSNimproved), the detectors can be
configured as a loop, a stub or T-tap or in any mixed loop or T-tap structures. However, it is
important to note that mesh structures cannot be created.
The LSNimproved version allows T-taps on stubs or loops and any number of nodes, branches
per node and elements per branch as long as the maximum number of elements does not
exceed 254.
Connections can be positioned anywhere along the LSN line.
10 en | Planning Notes Automatic Detectors LSN improved
2019.11 | 4.0 | F.01U.025.877 Operation Guide Bosch Sicherheitssysteme GmbH
Notice!
Planning should take the anticipated total current and line resistance into account to ensure
each detector has an operating voltage of at least 15VDC.
As soon as an LSN classic device is in a loop or stub, only loop or stub structures can be
used. In this case, T-tapping is no longer possible.
FPA-5000
FPA-5000
FPA-5000
1: Loop 2: 1 or 2 stubs 3: T-tap
FPA-5000
FPA-5000
4: 1 or 2 stubs and T-taps
mixed
5: Loop and stubs mixed with
T-taps
Tab.2.1: Possible structures in LSN
When configuring the detectors, it is essential to ensure that no mesh structures are created.
FPA-5000
FPA-5000
Mesh structures within a
stub structure
Mesh structures within a
loop structure
Tab.2.2: Unusable network structures
Dieses Handbuch passt für folgende Modelle
4
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