2DALI „Digital Addressable Lighting Interface“ DALI is not a definition of a system!DALI is the definition of the COMMUNICATION between a controllerand the electronic ballast.DALI ist specified in the standard IEC 62386therefore the devices of the different manufacturers are exchangeableand the function is guaranteed
3Principal function DALI: General function:Digital dimmed electronic ballast (DALI) have a mains supply (230V/AC) anda 2-pol. data input. The communication is via digital data communication.A DALI System consist off DALI devices (controller and electronic ballast) whoallow an individual lighting control per room.- This would mean the manual or automatically switching or dimming of differentluminaires- With specific sensors a daylight lighting control with cost saving effects will bepossible- With the possibility of the programming of specific light scenes it will bepossible to have different lighting effects in a room( e.g. presentations, meetings, videosetc. )
4Principal function DALI: - Due to the fact that DALI is limited in the quantity of devices the DALI lightingcontrol can be used for a small room mainly which would mean a completebuilding must be separated in small parts.A DALI-system allows the following devices:- max. 64 devices ( Individual addresses )per DALI-System max. 64 EVG`s- max. 16 groups ( group addresses )max. 64 individual devices can be distributed in max. 16 groups- max. 16 lighting scenesper DALI-system max. 16 light scenes can be programmed to the 16 differentgroups.
5Principal function DALI: Example (Picture Osram): DALI-Controller
6Technical data of DALI: - Data signal by voltage : 16V (min. 11,5V - max. 22,5V)- max. voltage drop between transmitter and receiver: 2V- power consumption per device max. 2mA- total power consumption per system max. 250 mA- max. cable distance 300m- all installation topologies are possible except loop topology- data transfer rate 1200 bit/Sek.- the cable and terminals for the data transmission must be the same as for230V--> therefore it is possible to use one cable for the power supply and thedata transmission ( e.g 5x1.5 mm²)
7Advantage of DALI:- each device has its own address so that they are individuallyprogrammable(group assignment / lighting scenes )- due to a check signal luminaire failure will be transmitted- data cable bipolar (exchangeable)- programmable lighting level at data interruption- programmable how fast the lamp should dim- no resistors at data cable-end necessary- data transmission failures will be identified
8- typical example: conference room DALI in use3. - wall washer- typical example: conference room2. - Down lightsPictures: Osram4. - ceiling luminaire T161. - Halogenlamp
9DALI in use - typical example: conference room 1 - Halogen2 - Down lights3 - wall washer4 - ceiling luminaires T16Pictures: OsramAll 4 groups can be switched individually :E.g. scenario: 1. - begin of a presentation / welcome - all ON (100%)2. - presentation - Halogen / ceiling lum. ON dimmed3. - discussion - Down lights ON 70%4. - video presentation - wall washer / Down lights 50%for 4-lighting scenariosLighting switch
10A DALI bus system is only for lighting management. DALI in comparison to EIB/LON Bus systems:A DALI bus system is only for lighting management.DALI is not as complex as a BMS via EIB or LON (e.g. controlling of air-condition system access control etc.)In general it is possible to connect DALI via „gateways“ into BMS system as a“subsystem”
11CEAG and DALI - conventional solution: In the past we could use DALI system in the emergency lighting circuit only with high expenditure:Disadvantages:- higher installation cost- higher material cost- space in the EML deviceDALI-ControllerEVGSKUMainsmonitoringEmerg. Oper.With switch over of the data signal to the 100% level the electronic ballast will have 100% light output .Control relaysDim signal100%Data cablePower cableHV/UV-SV
13Description of CEAG new V-CG-SB module First address switch (decade)Generally 2 different applications are possible for the use of the module 2L CG-SB.a) Standard application with an external DALI-Controller connected (Extern - right 0, 1, 2)b) Special application without an external DALI-Controller connected (Intern - left 0, 1, 2)One of these applications must be selected with the left address switch, which is in combination alsoused for setting the decade address 0 or 10 or 20 (plus the single address x of the right single address switch).Second address switch (single)Switch for addressing the single address 1 to address 9(0 = without monitoring)Third switch is for theadjustable lightoutput level in DC Battery operationvalue 10% to 100% (in 10% steps)Input external DALI-Bus D1, D2L (+)Power supplybyZB-S or CG2000Output externalDALI-Bus D1´, D2´ to the DALI ballastN (-)
14Description of CEAG new V-CG-SB module a) Standard application with external DALI-ControllerWith the V-CG-SB module in Standard application theindividual luminaire monitoring and the control of DALI electronic ballast ofdifferent suppliers is possible!Operation modes with Emergency lighting systems are1. Normal operation mode:- the brightness of the lamp is dimmed by the external DALI controller- the luminaire can be switched to 100% with CG-S function (e.g. for services)2. Emergency operation in AC mode:- light output 100% independent of the external dimming controller and thesettings at the V-CG-SB3. Emergency operation in DC mode:- the external dimming controller will be without function, the electronic ballast will bedimmed to the chosen DC dimmlevel of the V-CG-SB (10 to 100% in 10% steps).
15Outgoing EML circuit 230VAC / 220 VDC voltage. Description of CEAG new V-CG-SB moduleExample for a) Standard application with external DALI-ControllerDALI switch or dimmerExternal DALI-ControllerZB-S or CG2000HFDALI daylight sensorDALI ballastDUExternal DALI BUS D1/D2 (no Touch-DIM !)Outgoing EML circuit 230VAC / 220 VDC voltage.V-CG-SBUOUD1Inmax. 20V-CG-SB adresseson each circuitD2X.D1OutInOD2ZB-SThis connection D1/D2 max. 1m !Remark: The V-CG-SB module must be programmed at the EML system via „luminiare setup“ to „non-maintained“ mode !
16Description of CEAG new V-CG-SB module b) Special application without external DALI-ControllerWith the V-CG-S module in this special application it is possible to use and to monitor DALI electronic ballast like usual electronic ballast, but with a reduced lightoutput in DC emergency operation.Operation modes with Emergency lighting systems are1. Normal operation mode:- Function like a normal V-CG-S- DALI electronic ballast can be switched to ON (100%) or OFF (0%) with CG-S function2. Emergency operation in ACmode:- light output 100%3. Emergency operation in DC mode:- the DALI electronic ballast will be dimmed to the chosen dimmlevelof the CEAG V-CG-SB (10 to 100% in 10% steps).
17Outgoing EML circuit 230VAC / 220 VDC voltage. Description of CEAG new V-CG-SB moduleExample for b) Special application without external DALI-ControllerZB-S or CG2000HFDALI ballastUOutgoing EML circuit 230VAC / 220 VDC voltage.}V-CG-SBUOUD1InNot connectedmax. 20V -CG-SB adresseson each circuitD2X.D1DOutInOD2DZB-SThis connection D1/D2 max. 1m !Remark: The V-CG-SB module must be programmed at the EML system via „luminiare setup“ to „non-maintained“ mode !
18pictures with friendly permission of OSRAM GmbH – Munich List of sources:pictures with friendly permission of OSRAM GmbH – Munich- DALI-guide of DALI AG