1. Digital Adressable Lighting Interface (Basic information)
11.1
Digital Adressable Lighting Interface (Basic information)
A.Klepper – 01/04/11 Rev.A

2. DALI „Digital Addressable Lighting Interface“
DALI is not a definition of a system!
DALI is the definition of the COMMUNICATION between a controller
and the electronic ballast.
DALI ist specified in the standard IEC 62386
therefore the devices of the different manufacturers are exchangeable
and the function is guaranteed

3. Principal function DALI:
General function:
Digital dimmed electronic ballast (DALI) have a mains supply (230V/AC) and
a 2-pol. data input. The communication is via digital data communication.
A DALI System consist off DALI devices (controller and electronic ballast) who
allow an individual lighting control per room.
- This would mean the manual or automatically switching or dimming of different
luminaires
- With specific sensors a daylight lighting control with cost saving effects will be
possible
- With the possibility of the programming of specific light scenes it will be
possible to have different lighting effects in a room
( e.g. presentations, meetings, videos
etc. )

4. Principal function DALI:
- Due to the fact that DALI is limited in the quantity of devices the DALI lighting
control can be used for a small room mainly which would mean a complete
building 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 scenes
per DALI-system max. 16 light scenes can be programmed to the 16 different
groups.

5. Principal function DALI: Example (Picture Osram):
DALI-Controller

6. Technical 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 for
230V
--> therefore it is possible to use one cable for the power supply and the
data transmission ( e.g 5x1.5 mm²)

7. Advantage of DALI:
- each device has its own address so that they are individually
programmable
(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 use
3. - wall washer
- typical example: conference room
2. - Down lights
Pictures: Osram
4. - ceiling luminaire T16
1. - Halogen
lamp

9. DALI in use - typical example: conference room
1 - Halogen
2 - Down lights
3 - wall washer
4 - ceiling luminaires T16
Pictures: Osram
All 4 groups can be switched individually :
E.g. scenario: 1. - begin of a presentation / welcome - all ON (100%)
2. - presentation - Halogen / ceiling lum. ON dimmed
3. - discussion - Down lights ON 70%
4. - video presentation - wall washer / Down lights 50%
for 4-lighting scenarios
Lighting switch

10. A 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”

11. CEAG 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 device
DALI-Controller
EVG
SKU
Mains
monitoring
Emerg. Oper.
With switch over of the data signal to the 100% level the electronic ballast will have 100% light output .
Control relays
Dim signal
100%
Data cable
Power cable
HV/UV-SV

12. CEAG and DALI:
New V-CG-SB Module:

13. Description 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 also
used 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 the
adjustable lightoutput level in DC Battery operation
value 10% to 100% (in 10% steps)
Input external DALI-Bus D1, D2
L (+)
Power supply by
ZB-S or CG2000
Output external
DALI-Bus D1´, D2´ to the DALI ballast
N (-)

14. Description of CEAG new V-CG-SB module
a) Standard application with external DALI-Controller
With the V-CG-SB module in Standard application the
individual luminaire monitoring and the control of DALI electronic ballast of
different suppliers is possible!
Operation modes with Emergency lighting systems are
1. 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 the
settings at the V-CG-SB
3. Emergency operation in DC mode:
- the external dimming controller will be without function, the electronic ballast will be
dimmed to the chosen DC dimmlevel of the V-CG-SB (10 to 100% in 10% steps).

15. Outgoing EML circuit 230VAC / 220 VDC voltage.
Description of CEAG new V-CG-SB module
Example for a) Standard application with external DALI-Controller
DALI switch or dimmer
External DALI-Controller
ZB-S or CG2000 HF
DALI daylight sensor
DALI ballast D U
External DALI BUS D1/D2 (no Touch-DIM !)
Outgoing EML circuit 230VAC / 220 VDC voltage.
V-CG-SB U O U D1 In
max. 20
V-CG-SB adresses
on each circuit D2 X . D1
Out In O D2
ZB-S
This 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 !

16. Description of CEAG new V-CG-SB module
b) Special application without external DALI-Controller
With 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 are
1. 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 function
2. Emergency operation in ACmode:
- light output 100%
3. Emergency operation in DC mode:
- the DALI electronic ballast will be dimmed to the chosen dimmlevel
of the CEAG V-CG-SB (10 to 100% in 10% steps).

17. Outgoing EML circuit 230VAC / 220 VDC voltage.
Description of CEAG new V-CG-SB module
Example for b) Special application without external DALI-Controller
ZB-S or CG2000 HF
DALI ballast U
Outgoing EML circuit 230VAC / 220 VDC voltage. }
V-CG-SB U O U D1 In
Not connected
max. 20
V -CG-SB adresses
on each circuit D2 X . D1 D
Out In O D2 D
ZB-S
This 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 !

18. pictures with friendly permission of OSRAM GmbH – Munich
List of sources:
pictures with friendly permission of OSRAM GmbH – Munich
- DALI-guide of DALI AG