Category: Technical

How to control trailing edge phase dimmable light fittings on a DALI Lighting Control System

How to control trailing edge phase dimmable light fittings on a DALI Lighting Control System RAPIX DALI Adaptive Phase Dimmer - Wiring Diagram

The question always gets asked: how do we control our trailing edge phase dimmable light fittings on a DALI Lighting Control System? The answer is much easier than sometimes thought. Every lighting control system is different, and in the past some of the more traditional lighting control systems had a dedicated leading edge, trailing edge […]

Tutorial: Phase Dimming

Everything you wanted to know about phase dimming and were too scared to ask. 1 Introduction In this post we describe how phase dimming works, and show some practical effects of phase dimming with modern LED lamps and LED drivers. 1.1 Background and History Phase Dimming is sometimes also called Phase Cut Dimming, or Phase […]

Software Update: Ethernet Interfaces can add more lines to a DALI-2 Zone Controller

Released today: The RAPIX DALI-2 Zone Controller and RAPIX Integrator software are updated to allow a Zone Controller to work with up to 2 RAPIX DALI Ethernet Interfaces. This new Version 10.0 software support allows extra DALI lines to be added to a Zone Controller, and presents a lower cost option when lines need to […]

New Product Release: DALI-2 Low Power Voltage Free Relay

Ozuno is pleased to announce the general release of the new Low Power Voltage Free Relay. This relay is designed for electrical safety isolation of the output terminals from DALI, and is suitable for use in systems that have a SELV interface suitable for relay contact connection. The relay is rated to 1 A for […]

Why DALI Must Be Wired With Double Insulated Mains Cable

Why DALI Must Be Wired With Double Insulated Mains Cable

I am often asked why the DALI communication bus (the DALI Line) must use double insulated mains wiring. Searching available documentation, it’s difficult to find hard information to answer this specific question. A long, long time ago the predecessor to the DALI Alliance published a DALI Manual which stated: “The isolation of the digital interface […]

Step out of the Darkness with DALI Brightness Levels

Step out of the Darkness with DALI Brightness Levels

Check any DALI configuration software or documentation and chances are that the term Direct Arc Power will be used at some point. For example: a DALI Short address (single Luminaire) or DALI Group Address (a number of luminaries) can be set to go to a particular light level by issuing a Direct Arc Power Command. […]

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