Intelligent lighting control with DALI
In an era where energy efficiency, comfort, and digitalization are key requirements for modern buildings, intelligent lighting control plays a vital role. DALI is a proven standard that is gaining popularity.
Was ist DALI?
DALI – the Digital Addressable Lighting Interface – is an internationally standardized communication protocol (IEC 62386) developed specifically for the control of lighting systems. It enables digital control and monitoring of individual or groups of luminaires within a lighting system. Unlike traditional analog systems such as 1-10 V or phase-cut dimming, DALI offers bidirectional communication: Luminaires can be controlled as well as actively monitored.
Where is DALI used?
DALI is used wherever lighting must be controlled precisely, efficiently, and flexibly – especially in:
- Office buildings: for daylight-responsive control, personalized workspace lighting, and energy optimization.
- Industrial facilities: for automated lighting control in production halls, with a focus on safety and efficiency.
- Schools and hospitals: with varying use cases and high demands for comfort and reliability.
- Hotels and event venues: for flexible lighting scenes that can be activated at the push of a button.
Components of a DALI system
- 1. DALI control device: Sends digital commands to connected luminaires. It can be a standalone DALI controller or integrated into other control devices – such as the SLK 8, a compact control unit with an integrated DALI interface for up to six DALI connections.
- 2. DALI power supply: Supplies the DALI bus with 16 V DC. In many control devices like the SLK 8, the power supply is already integrated.
- 3. DALI luminaires/control gear (LED drivers): These receive the control commands. Each luminaire has its own address in the DALI system and can be controlled individually or in groups.
- 4. Sensors and control elements: Motion sensors, daylight sensors, or DALI-compatible switches expand system functionality. They provide feedback and enable automated processes.
- 5. Bus wiring: The DALI bus consists of two wires (typically part of a 5×1.5 mm² installation cable, with two wires used for DALI) and connects all devices. There are no restrictions on topology – line, star, or tree structures are all possible.
How to set up a DALI lighting system
- 1. Planning Define the number of luminaires, groups, and control points. A DALI line can accommodate up to 64 addresses (luminaires or devices).
- 2. Wiring All devices are connected in parallel to the DALI bus line. The bus line can be up to 300 meters long (with a 1.5 mm² cross-section).
- 3. Commissioning With a software or a DALI configuration device (e.g., the SLK 8 or a USB interface), addresses are assigned, groups defined, and scenes programmed.
- 4. Integration and automation Motion and light sensors are integrated, automation rules are created (e.g., light only when motion is detected, daylight control), and the system can be connected to a building management system if desired.
SLK 8 – Easy DALI integration
One of the easiest ways to integrate DALI into your lighting systems is to use our SLK 8. This is a modular control unit with an integrated DALI interface for up to six connections. It enables you to:
- Directly control multiple DALI lighting groups.
- Eliminate separate DALI controllers or power supplies.
- Seamlessly integrate into existing automation systems.
- Simplify commissioning with preconfigured DALI parameters.
This makes the SLK 8 an ideal solution for projects where comfort, efficiency, and reliability are top priorities.
Takeaway
DALI is more than just an intelligent lighting control – it is a powerful system for modern, energy-efficient, and flexible lighting. The combination of standardized components, open architecture, and easy scalability makes it the ideal choice for future-proof building projects.
Planning a project with DALI or want to learn more about the SLK 8?
We are happy to support you with selection, planning, and integration – get in touch with us!
What is DALI and how does it work?
Learn more in our YouTube-Video!
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