DALI . F lexible l ight ing solut ions that wi l l fascinate

your customers.

Digital Addressable Lighting Interface

M o d e r n d i g i t a l l i g h t i n g c o n t r o l w i t h D A L ILess is more: no more confusing switch panels

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DALI – local lighting intelligence

Many conference rooms and offices still have a be-wildering array of switches for operating the differentgroups of lights. This is often a problem for users ofthese rooms as they find it difficult to figure out quicklyenough what all the different switches, buttons and rotary potentiometers do – even if they are labelled.As a result, most of the functions of the lighting system, installed at great cost to provide high levels of comfort and flexibility, are not used at all.

New digital lighting control systems withDALI technology are as flexible as they are simple. With just a few low-cost compo-nents, DALI offers intelligent room-basedlighting management with high functio-nality, low wiring costs and user-friendly operation.

Flexible grouping – without rewiring

DALI is designed for scene-based lighting control systems. A scene or lighting status of a room is defined by adjusting the different groups in the room.A group is a meaningful collection of luminaires. In offices, these groups are mostly rows of lights. Diffe-rent lighting moods (scenes) can be created by settingdifferent lighting levels for these groups (on, off ordimmed). These scenes can be easily saved and calledup at any time at the touch of a button. They can alsobe adjusted at any time.

Up to now, groups have been set up by wiring the circuits appropriately. Planners and installers had to decide right at the start which luminaires were to be combined into groups. With DALI this restriction is a thing of the past.

The luminaires and their associated ECGscan be freely assigned to groups,irrespective of their physical arrangement in rows either down or across. The groups,like the scenes, are simply stored in the DALI ECG.

Reception

Slide presentation

Discussion

Lecture

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It's never been simpler – DALI wiring

Lighting control for four typical situations (scenes) for a multi-functional conference room

DALIcontroller

LampDALI ECG

DALI ECG

DALI ECG

Lamp

Lamp

D A L I m a k e s e v e r y t h i n g e a s i e r

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Group 1 Downlights

Group 2 Recessed ceiling luminaires

Group 3 Wall-mounted luminaires, compact flourescent lamp

Group 4 Long-run luminaires

More comfort. Less components

Clever scene changes: With DALI the complete lightingsystem goes to the new setting in synchronism. All thelamps are dimmed or brought back up simultaneouslyand all reach the new setting at the same time, what-ever the difference in brightness between the two settings. This function is performed automatically by the DALI ECGs.

For users, DALI means there are far fewer controls to worry about. Four scenes are enough for most

conference rooms, plusa central switch forswitching the lightingsystem off and for acting as an overridedimmer. The right lighting levels can beachieved in a matter of seconds. It's best to provide labels for the various scenes.

DALI combines the convenience of a bus system with ease of installation and use.

Simple installation. Stunning versatility

DALI is installed using standard installation material for mains voltage (e.g. 5x1.5 mm2 NYM, as for 1-10V).“Clever” features simplify installation still further.For example, there is no need to define the groups atthe planning stage, no need to worry about the polarityof the control cable and no switching relays since theECGs switch itself on and off.

With DALI the entire system can be addressed, as wellas individual units as groups. 64 individual addressescan be assigned, 16 groups and 16 scenes can bestored in the ECGs. DALI can be easily integrated intoa building management system via gateways. Thesegateways are already available on the market.

In this solution, DALI is an intelligent sub-system for light. DALI also enables feedback(such as lamp faults) to be sent to the buil-ding management system.

Far-reaching applications.Long-term satisfied customers

Digital lighting control systems with DALI interfaces are ideal not only for offices and conference rooms.Public buildings such as sports halls, classrooms,restaurants and shops are another major area of potential use. DALI is even of interest for car show-rooms and for decorative lighting. These applicationsoften call for different lighting scenes – for selling, forpresenting certain products and for night-time lighting.

Integration of sensors for light and movement in systems with DALI technology rounds off the intelligentlighting control system perfectly.

With DALI, the new international standardfor digital lighting control, successfullighting is pre-programmed. For you andyour customers. Simple. And lasting.

Group 1: Downlights Group 2: Recessed ceiling luminaires Group 3: Wall-mounted luminaires Group 4: Long-run luminaires

Schematic diagram of possible groupings,using a multi-functional conference room as an example

D A L I : D i g i t a l A d d r e s s a b l e L i g h t i n g I n t e r f a c e

DALI is supported by most of the lighting industry asthe new digital standard in lighting control. DALI is a joint development, designed to meet all the require-ments placed on a modern lighting control system.The aim was to create a uniform non-proprietary standard in the lighting industry.

DALI does not define a lighting system.Instead it defines the digital communicationbetween a control unit and the electroniccontrol gear.

DALI is therefore included in control gear standard EN 60929 as Annex E4. The uniform interface definition specifies the function of a DALI control unitor a DALI-compliant load in a lighting system and guarantees the interchangeability of equipment fromdifferent manufacturers.

Features of DALI

Floating voltage control input

Two-wire line, polarity-free

Dimming curve analogous to the behaviour of the eye (linear optical sensitivity)

Addressing options: all together, by group, individual

Scene memory in the DALI ECG (maximum of 16)

Individual feedback messages (e.g. lamp fault)

Digital on/off switching in the ECG (without switching relays)

Advantages of using DALI

No need to worry about the mains voltage phase

No need to worry about polarity

No separate bus line

No wiring by groups

Each DALI ECG can be addressed individually

No need for scene memory modules

Status messages from DALI ECGs (e.g. lamp faults)

Synchronised scene transitions

No external relay, DALI ECGs switch themselves on and off

For more information on DALI please contact your luminaire or control equipment manufacturer or referto the DALI handbook published by the Activity GroupDALI. You can also go to:

www.dali-ag.org

Activity Group DALI of ZVEI e.V., Electrical Luminaires Association

Stresemannallee 19

D-60596 Frankfurt am Main

Phone: +49 (0)69 63 02-0

Fax: +49 (0)69 63 02-317

E-Mail: licht@zvei.org