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Trying to understand Dali Lighting system

So a DALI system is a ‘smart’ lighting system with different options of setting groups, dimming changing temperature etc. 

In a simple Dali system, where a set of of led lights are dimmed is this how it would get wired/connected. 

The main Lighting control module (dali) gets fed the incoming supply from local DB. Then the  cables connect from the LCM to the indivudal dali ballast of the lights. Then control wires go to the switches and/or PIR sensors. Then the retractive switch can be used to dim the lights?

Does it require any specific swtiches ?

Thanks.

Regards,

Sam

Parents
  • Graham might be on in a minute with 50mm separation gap, or bigger.

    No need for separation from mains for FELV - it's treated pretty much as just another LV circuit as far as distancing is concerned. 

       - Andy.

Reply
  • Graham might be on in a minute with 50mm separation gap, or bigger.

    No need for separation from mains for FELV - it's treated pretty much as just another LV circuit as far as distancing is concerned. 

       - Andy.

Children
  • ....so provided you use a suitably rated cable for the DALI bus it can share the same compartment as LV wiring.  Typically I have seen this wired in 2-core 0.5mm² or 1mm² flex.  Rather helpfully, the DALI bus is insensitive to polarity and can be merrily swapped over en-route with no issues.  There is a limit of 64 individual device addresses on a single bus-chain with DALI.  You can have more than 64 devices but addresses will then need to be shared.

    There is a useful guide (from the entertainment lighting industry) here: https://artisticlicence.com/WebSiteMaster/User%20Guides/the%20dali%20guide.pdf

    Hope this helps.