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The alignment status LEDs flash to show progress:
Right-hand green LED flashes twice every 3 seconds to indicate the system is in
a
alignment mode.
a
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
a
indicates which stage failed.
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, ' A ctivating the test alarm'.
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.
Page 15
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