ffeuk FDL242 Linear Smoke Detector User Guide

ffeuk FDL242 Linear Smoke Detector

Box Contents

General Information

Safety
Do NOT position the Detector where personnel or objects can enter the Beam path.
Do NOT install the Detector or Reflector in environments where condensation or icing are likely to occur unless preventative measures have been taken.

Intended Use
The FDL242 Linear Smoke Detector is only permitted for use on an addressed FDnet/C-NET detector line.

Installation

• All installations should comply with local regulations.
• Position Beam as high as possible, but with a minimum distance of 0.3 m/12” from Detector and Reflector to ceiling.
• Ensure there are no reflective surfaces within 0.5 m of the beam path centre.
• Ensure the correct Reflector is selected for the appropriate distance.
• Mount Detector and Reflector directly opposite each other.
• Do not mount Reflector onto reflective surfaces.
• Do not mount Detector or Reflector in areas of direct sunlight.

Wiring Information

The FDL242 contains software that processes the output of the detector and generates a Fire and Fault status. This status is transmitted to the Siemens Fire Control Panel (FCP) over FDnet/C-NET which also powers the FDL242. To wire a detector to a FCP, use the following wiring diagram.
NOTICE : Install one cable ferrite 4 on each cable entry to the detector.

Use of Unshielded Cables
The connection is established from base to base using twisted or non-twisted wire pairs.

Use of Shielded Cables
The detector line shielding must be connected through in the detector base with auxiliary terminals DBZ1190-xx.

1. Control Panel
2. Detector
3. Auxiliary Terminals DBZ1190-xx
4. Cable Ferrite

Mounting

Mount the base on solid surface such as a structural wall or girder.
Mark and drill holes for mounting of base. Using appropriate hardware (not supplied) mount base securely in orientation shown.
To preserve the specified IP rating, fit M6 x 30mm x 1.5mm neoprene washers (one per fixing) between the product and the mounting surface.

Cable Entry

Cable glands should be used on the cable entry of the FDL242 to maintain the IP rating of the enclosure and provide cable strain relief.
Use cable glands with an IP rating of IP55, or greater, which are suitable for the outside diameter of cable(s) being used for the installation.

Two types of cable gland are recommended:

1. M20 x1.5 Metal cable gland, order number A5Q00004478 (Siemens)
2. M20 x1.5 polyamide cable gland and suitable nut, for example:
   a) Wire clamping range 4 – 10 mm: article number 53111520 and article number 53119023 (U.I. Lapp GmbH)
   b) Wire clamping range 6 – 13 mm: article number 53111420 and article number 53119023 (U.I. Lapp GmbH)

Targeting and Alignment

Introduction
The overall alignment process consists of Targeting (coarse adjustment of FDL242 onto the reflector), Alignment (fine adjustment to the centre of the reflector) and the activation of a test alarm for functional verification.
The preferred method of Targeting is Laser Targeting: a red laser beam allows the most efficient coarse adjustment of the FDL242 onto an already mounted reflector. For a mounted FDL242, laser targeting also provides an easy way of locating a suitable mounting position for the reflector. For details see section ‘Laser Targeting’.

The alternative Targeting process, Prism Targeting, should only be applied if Laser Targeting is not possible, for instance in high ambient light conditions where the laser might not be visible. For details see chapter ‘Prism Targeting’.
The preferred and most efficient Alignment process is Automatic Alignment. For details see chapter ‘Automatic Alignment’. Only if the Automatic Alignment fails should the alternative Manual Alignment process be used. For details see section ‘Manual Alignment’.

For the targeting and alignment process the User Interface needs to be accessed by unscrewing the fixing bolt and opening the door as indicated in the image below. The door should remain attached to the FDL242, however on the rare occasion that it becomes unattached, it is possible to reattach the tether by reinserting the barbed end.

User Interface
Alignment Status Indicators: see process flow descriptions for Targeting and Alignment on the following pages.

Switch settings for different processes:

• Laser Targeting:
  • Settings: “Alignment-Auto” or “Alignment-Manual”, “Targeting-Laser”
  • Start Laser Targeting by changing Slide Switch from “Operate” to “Align”
• Automatic Alignment after Targeting:
  • Settings: “Alignment-Auto”, “Targeting-Laser” or “Targeting-Prism”
  • Start Automatic Alignment by changing Slide Switch from “Align” to “Operate”
• Prism Targeting:
  • Settings: “Alignment-Auto” or “Alignment-Manual”, “Targeting-Prism”
  • Start Prism Targeting by changing Slide Switch from “Operate” to “Align”
• Manual Alignment after Targeting:
  • Settings: “Alignment-Manual”, “Targeting-Laser” or “Targeting-Prism”
  • Start Manual Alignment by changing Slide Switch from “Align” to “Operate”
• Normal operation:
  • Settings: Alignment: Auto or Manual, Targeting: Laser or Prism
  • Normal operation is automatically started after successful finalization of Alignment process

Direction Keys: used to align the FDL242 in the laser targeting, prism targeting and manual alignment processes.

General Remarks
To enable the Targeting and Alignment process the FDL242 needs to be powered. The following options are available:

• Siemens Fire Control Panel
• Line Tester FDUL221
• 24 V DC power supply or battery

When using a Siemens Fire Control Panel with the FDL242 commissioned on the fieldbus the detector must be set into Device Test Mode at the Siemens Fire Control Panel.
The targeting and alignment process will only work for supply voltages above 20 V. For normal operation the right-hand green LED flashes once per second for targeting, and twice every 3 seconds for alignment. If the flashes are slower – once every 3 seconds for targeting and twice every 6 seconds for alignment – this indicates that the supply voltage is too low. In this case targeting or alignment will not work properly and the cause of the low supply voltage needs to be found and removed.

Laser Targeting and Automatic Alignment of a New FDL242
This chapter describes the process for a new FDL242 which is to be run through the Targeting and Alignment process for the very first time. If a previously operated and aligned FDL242 is to be used in a new mounting situation the required process deviations are described in the chapter ‘Realignment of FDL242’.

Before powering the FDL242 the switches need to be in the following positions (default): “Alignment-Auto”, “Targeting-Laser”, Slide Switch:
“Operate”

1. To start Laser Targeting move the slide switch (2) to “Align”.
   DANGER Laser radiation class 3R 5 mW, Wavelength 630…680 nm Severe eye injury
   • Avoid direct eye exposure to laser beam.
   • Follow local regulations for use of products with Class 3R lasers

2. The right-hand green LED flashes once per second to indicate the system is in targeting mode.

3. If a reflector is already mounted use the direction keys to move the laser point towards the centre of the reflector.
   If the reflector is not yet mounted you can also use the direction keys to move the laser point towards the intended reflector mounting position. After mounting the reflector make sure that the laser point appears approximately in the centre of the reflector. If the laser cannot be seen, for example in very bright environments or over long distances, then the Prism Targeting mode can be used: see chapter ‘Prism Targeting’.

4. To begin the Automatic Alignment move the slide switch to ‘Operate’

The alignment status LEDs flash to show progress:

Right-hand green LED flashes twice every 3 seconds to indicate the system is in alignment mode.

Left-hand green LED indicates at which stage (1…5) the process is.

The amber LED in the middle indicates a failure. The number of times it flashes indicates which stage failed.

NOTICE : The maximum duration of the Automatic Alignment process is 5 minutes. If the power supply to the FDL242 is to be removed after alignment, make sure that the Automatic Alignment has successfully completed before power is removed, otherwise the detector will be in fault state at next start-up and the Automatic Alignment will need to be repeated.

If alignment fails, ensure that the correct number of reflectors are installed, that the correct clearance has been given, and that there are no reflective surfaces around the reflector or close to the beam path, and try the alignment again.
If alignment repeatedly fails, it is possible to do a manual alignment. See Manual Alignment. Once the alignment is successfully completed, the right-hand green LED flashes for 10 seconds.

The FDL242 is now ready for selection of Alarm Thresholds.
The Detector can be tested to ensure it is operating and connected to the Siemens Fire Control Panel correctly. To activate the test alarm, see chapter 8 Status Indications and Troubleshooting, ‘Activating the test alarm’.

Prism Targeting
Prism targeting should only be used when the laser cannot be seen, for instance in high ambient lighting conditions or over very long distances.

1. On the Settings Switch set the Targeting switch (1) to the right-hand position.
2. To begin targeting, move the Slide Switch (2) to the left-hand position.

The Alignment Status indicator LEDs (left-hand, middle) will flash together for up to 3 seconds to show the detector has started Prism targeting.

Prism targeting in progress: Right-hand green LED flashes once per second to indicate the system is in targeting mode.

If the left-hand green LED stays illuminated the detector is receiving enough light back from the reflector.

Cover the reflector.

1. If the left-hand green LED goes off then the light being received by the detector is coming from the reflector and you can now proceed to the alignment stage. See page 13 for Automatic Alignment or page 17 for Manual Alignment.

2. If the left-hand green LED stays illuminated with the reflector covered then the light received by the detector is being reflected by some other object in or around the beam path.
   Take care to make sure there are no reflective objects within 0.5 m of the centre of the beam path, and try Prism Targeting again.

3. If the amber LED flashes every second then the detector is not receiving enough light from the reflector. The number of flashes indicate how strong a signal it is receiving. Using the direction buttons, move the detector in one axis until the amber flashes increase. If the number of flashes stays the same, then keep going in the same direction. If the number decreases, then reverse direction. Once the number of flashes starts to increase then keep going until either:

• The left-hand green LED comes on, at which point cover the reflector as described under point 3 above.
• The amber LED flashes start to decrease again, at which point reverse direction for 2 steps and perform the same process in the other axis.

If Prism Targeting has been performed on both axes and the left-hand green LED is still not on, then ensure the following:

• Correct number of reflectors for the range has been used
• The distance has not exceeded the maximum (120 m)
• The reflector and detector are parallel to each other
  After the above points are assured, try the Prism Targeting again.

Manual Alignment
Manual alignment should only be used when Automatic alignment has failed even after it has been verified that the correct number of reflectors have been installed and the correct clearance around the beam path has been given.
Perform targeting as previously described, and then do the following:

1.  On the Settings Switch set the Alignment switch (1) to the right-hand position (“Manual”).
2. Move the Slide Switch (2) to the right-hand position (“Operate”). The right-hand green LED flashes twice every 3 seconds to indicate the system is in alignment mode.

The green and amber LEDs may flash if the detector needs to perform an initial power adjustment. Once they have stopped flashing, move on to step (3).

3. Use the direction buttons to move the detector in the up-down axis. Press the down button once, and wait to see what the LED indication shows.
a If both amber and green LEDs flash, the signal has not changed so no further movement in that axis is needed.

If the amber LED flashes, the signal is smaller and the detector is moved away from the reflector. Using the direction buttons, reverse direction for 2 steps. This time there should be a green flash.

If the left-hand green LED flashes, the signal is larger and the detector is moving closer to the reflector.
The next movement must be in the same direction. Keep moving the detector, waiting for the LED flash each time.

• If the left-hand green LED keeps flashing, keep going in the same direction.
• If the amber and the green LED flashes, then move onto the other axis (see step (4) below).
• If the amber LED flashes, move back in the opposite direction once, then move onto the other axis (see step (4) below).

Follow the same process as in step (3), this time in the left-right axis. Start by moving in the left direction.
Once the alignment has been completed on both axes move the Alignment switch (1) to the left-hand position (“Auto”).

a The right-hand green LED will flash for 10s.

The Detector can be tested to ensure it is operating and connected to the Siemens Fire Control Panel correctly. To activate the test alarm, see chapter 8 Status Indications and Troubleshooting, ‘Activating the test alarm’.

Realignment of a previously aligned FDL242

If a previously aligned FDL242 is to be reused in a new mounting situation it must be realigned. If the FDL242 is started up in the new mount-ing situation for the first time it will apply the previous alignment data and the FDL242 will most likely generate an alarm immediately after startup.

When the realignment process is to be done by means of a Line Tester FDUL221 or a 24 V DC power supply the alarm will not have any impact and the Targeting and Alignment process described above can be applied without changes.
However, when the realignment is to be done by means of a Siemens Fire Control Panel an alarm generated by the FDL242 inhibits the activation of the Device Test Mode. In order to enable realignment with a Siemens Fire Control Panel the Slide Switch needs to be set to Align before the startup of the fieldbus line.

If the FDL242 is powered up with the Slide Switch on “Align” it will directly enter Targeting mode. The FDL242 will then block the alarm and issue a fault message instead. The Targeting and Alignment process steps described above can then be executed. After successful completion of the Targeting and Alignment process the fault message will be retracted and the FDL242 will enter normal operation.’

Settings

Fire Threshold

Parameter Sets

Configured by Siemens Fire Control Panel
All parameter sets are EN54-12 approved
Setting the parameter set depends on the detector line FDnet, C-NET.
The procedure for parameter setting via the control panel is described in the Siemens Fire Control Panel documentation.

NOTICE : In case of a direct replacement of a FDL241-9 by a FDL242 take into account the differences in the fire thresholds!

Status Indications and Troubleshooting

Status Indications
Normal Operation – One green flash every 10 s OR off (configured by control panel)
Device Test Mode – Double amber flash every 4 s
Alarm – One red flash every second

Cleaning
The Detector will automatically compensate for dust build. Once the compensation limit has been reached, the Detector will indicate a Fault and cleaning must be performed.
It is therefore recommended that the Detector lens windows and the Reflector are periodically cleaned with a soft lint-free cloth to prevent compensation limit faults occurring.
After cleaning, if the Detector is in Fault state, the signal strength may have increased above the Signal Too High threshold. If this is the case, re- align the Detector.

Activating the Test Alarm
After installation or cleaning it is recommended that a fire test is performed

1. On the Siemens Fire Control Panel (FCP), activate the ‘Detector test’ operating mode
   The Detector Status indicator LED blinks amber twice every 4 seconds to indicate the test mode status.

2. Either cover the reflector slowly (>5 s) or hold the alarm test filter from the “S54331-S11-A1 FDL242 Commissioning Kit”
   in front of the detector, such that it covers the detector optics.
   The detector activates an alarm after around 5 seconds.

3. On the FCP, deactivate the “Detector test” operating mode
   The detector is ready for operation.

If the alarm does not sound, check whether the standardized signal value is attenuated enough to reach the alarm threshold. Otherwise rotate the alarm test filter a little or turn it round.

Technical Information

Line-type smoke detector type FDL242 shall not be used in systems or components intended for triggering or control of extinguishing systems.

Line Separator

Dimensions and Weight

Environmental compatability and disposal
This equipment is manufactured using materials and procedures which comply with current environmental protection standards as best as possible. More specifically, the following measures have been undertaken:

• Use of reusable materials.
• Use of halogen-free plastics.
• Electronic parts and synthetic materials can be separated.

Larger plastic parts are labelled according to ISO 11469 and ISO 1043. The plastics can be seperated and recycled on this basis.

Open Source Notice

This product includes software developed by Texas Instruments Incorporated.
Copyright © Texas Instruments Incorporated http://www.ti.com/

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documenta-tion and/or other materials provided with the distribution.
Neither the name of Texas Instruments Incorporated nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI-BILITY OF SUCH DAMAGE.

References

• Home - FFE UK
• Analog | Embedded processing | Semiconductor company | TI.com

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