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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.
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