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7/28/2019 Lightfair Specifier View of Dali Presentation
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A Specifiers View of DALIJune 4, 2002 4:00 PM
Seminar #18
Richard Miller, PE, LCHellmuth, Obata + Kassabaum, Inc.
Sponsored by The International
Association of Lighting Designers
Sponsored by The Illuminating
Engineering Society of North America
Official On-Site
Event Directory
Produced and Managed
by AMC, Inc.
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DALI
Digital Addressable Lighting Interface DALI is a protocol dedicated purely for
lighting control
DALI allows individual control andmonitoring of lighting systems
DALI provides precise dimming
DALI promises flexibility in design, and
ease of installation
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Learn How To:
Leverage the benefits of the DALI
technology
Specify DALI lighting controls
Design DALI controls for single rooms,
open offices and whole buildings
Solve DALI installation and
commissioning issues
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Current Lighting Control Systems
Agili-T by Lightolier
Centura by Leviton
Digital-MicroWatt by Lutron
DMX512 by USITT Easylite by Easylite Ballasts and Lighting Systems
Ergolight by Ledalite
GR2400 by Lighting Control and Design
IBECS by Lawrence Berkeley National Lab NexLight by Northpoint Engineering Co.
PowerLink by Square D Company
SuperDim by Energy Savings Inc
Synergy by Lithonia
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Current Wiring for
Conference Room
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History:
From Europe
Tridonic and others Digital Serial Interface (DSI) ballasts in 1991
Digital Addressable Lighting Interface (DALI) ballast in 1998
Dropped royalties to gain wide spread acceptance of DALI
IEC DALI protocol (IEC Standard 60929, Annex E & G)
advanced to voting process in year 2000.
Adopted by other leading ballast and control manufactures Formally adopted summer of 2002
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History:
In USA
NEMA Controls Council Wiring Devices, Controls, and Ballasts
Liaison with International ElectrotechnicalCommission (IEC)
DALI subcommittee
IESNA Controls Subcommittee Established to develop a control protocol
Reviewed several existing systems
Asked by NEMA to comment on DALI proposal
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DALI AG
Promote the DALI protocol
Review protocol compliance by manufactures
24 members as of September 2001 International Rectifier, CA
Lightolier, Canada
Lutron, PA
Osram, Germany
Philips, Netherlands
Tridonic, Austria
(www.DALI-AG.org)
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Benefits
Lower initial cost to the Owner Simple wiring
Higher level of maintenance to the Facility Manager
Status of lamp and ballast
Greater flexibility to the Lighting Designer Change grouping via software
Lower energy costs to the User
Reduced power consumption Greater sense of control to the Occupant
Individual control
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DALI
DALI is not a product
DALI is a protocol (a set of rules)
(from ballast perspective)
Power connection
Lamp response
Control interface
Command set
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Protocol:
Power Connection
Universal voltage input
115V to 300V,50Hz to 60Hz
High power factor
Low harmonics
Transient protection
Initial application of voltage lamps go
to full output or other preset level
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Protocol:
Lamp Response Precise dimming curve
Logarithmic curve
Range: 0.1% to 100% for incandescent,1% to 100% for linear fluorescent,
3% to 100% for CF
254 steps (2.8% increase per step)
Based on lamp arc power (This is not lamp lumen output)
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Protocol:
Control Interface Intent
Electrical
Media
Wiring
Bits and Bytes No Collision Detection
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Control Interface:
Intent Low cost
Simple
Low interference Interchangeable
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Control Interface:
Electrical Voltage 0 VDC (+/- 4.5V) to 16VDC (9.5V to
22.5V)
Voltage drop must not exceed 2 volts
Loss of control voltage lamps go to preset
level
Current 2 ma consumption, able to sink 250
ma
Power Remote power supply of
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DALI Ballast Block Diagram
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Control Interface:
Media Two wire
Twisted pair not required
Shielded pair not required Non-polarized
No End-of-Line resistor
Standard building wire
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Single DALI Loop Diagram
BusMaster
PCA EXCEL one4all
IR
Receiver
wall
switch
Interface
PIR
Interface
PCA EXCEL one4all
Digital bus
DALI-PSComputer
User
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Control Interface:
Wiring Maximum length of 300 meters
Open topology: chain, star, tree
Class 2 (may be wired as Class 1) (forballasts, controls?)
May be installed with line voltage
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DALI Wiring Topology
Diagram
Serial Connection Star Connection
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Control Interface:
Bits and Bytes Address (one specific ballast)
0AAAAAA1 + CCCCCCCC , 0AAAAAA0 + arc power
Broadcast (all ballasts) 11111111 + CCCCCCCC , 11111110 + arc power
Group 100GGGG1 + CCCCCCCC , 100GGGG0 + arc power
Go To Scene: 0AAAAAA1 + 0001SSSS
11111111 + 0001SSSS
100GGGG1 + 0001SSSS
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Control Interface:
No Collision Detection Assumes only one sending device
Ballasts talk only when queried
No checking for simultaneous
commands
Control manufacturers must provide
collision detection
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Protocol:
Command Set Current command set is for ballasts
only.
>100 commands defined (with spacefor future commands)
Ability to program, control and monitor
status information
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Ballast Commands:
To Ballast Off
Step Up
Step Down,
On and Step Up Set Max
Step Down and Off
Set Min
Go to Max
Go to Min Up to Max
Down to Min
Fade to Level
Set Actual Level
Set Power On Level
Set System Failure Level Set Fade Time
Set Fade Rate
Set Scene
Go to Scene
Remove from Scene Set Group
Remove from Group
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Ballast Commands:Information from Ballast (Query)
Actual Level,
Power ON Level
System FailureLevel
Max
Min
Group Assignment
Scene Level
Fade Time
Random Address Version Number
Device Type
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Device Types
Type 0 Standard (fluorescent)
Type 1 Emergency lighting
Type 2 HID lamps Type 3 Low voltage halogen lamps
Type 4 Line voltage incandescent lamps
Type 5255 Future device types
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DALI Programming (Contd)
Group Addressing
Each DALI loop can support up to 16 individual
groups
Each ballast may belong to any or all of the 16
available groups
Scene Setting
Each ballast may have as many as 16 presetlevels (scenes)
Scenes may be applied to ballasts
Scenes may be applied to groups
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Wiring per NEC
Approved for use in Class 1 and Class
2 installations
DALI wiring may be with line-voltagewiring
Could use a 5-wire prefabricated wiring
assemble Installation must comply with Code
Verify rating of control units
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Electricians Wiring Diagram
123456
One Conduit to
other Luminaires To Panelboard
DALINetwork
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Auxiliary Components
Power Supply
Voltage 16VDC (9.5V to 22.5V)
Power
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Sensor Connection Diagrams
To Control Unit To DALI Loop
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Auxiliary Components (Contd)
Gateways
DALI RS232
DALI - Ethernet
RS232 Ethernet hub
In separate cabinet from the branch circuit
panelboard
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Busmaster Enclosure Installation
RS232 Connection
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Panelboard and
Busmaster Cabinet
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Complete Building Control
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Next Generation Technology
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Palm Pilot Interface
dim up and downSelectgroups
Select light scenesOff
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User Interface
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Protocol Intent:
Interchangeability Manufactures: web site (DALI-AG.org)
DALI protocol is the minimum
requirement Provides compatibility among
manufacturers
Proprietary features are not prohibited DSI
Line-voltage control
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Designing Control Systems
Lighting Plan for Typical Office
Lighting Plan for Conference Room
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Lighting Plan for Open Office
CEC Title 24: mandatory
Two level or dimming
Occupancy / Auto Off Daylight Harvest
Time-of-Day off with timed manual override
Adjust for individual comfort
Weekend function
Security function
Power reduction
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STEP 1:Design fixture layout or retrofit existing fixtures with DALI
compatible ballast.
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STEP 2:Layout DALI network (2 wires) to each fixture independent of
circuit wiring. Each DALI loop can support up to 64 ballast. Loop
wires can be located in same conduit with power wiring
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STEP 3:Design controls into space and determine easiest connection to
DALI bus. Identify placement of bus power supply and optional
network interface.
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STEP 4:Address DALI ballasts. Determine fixture groupings and map
control devices to fixtures. Each ballast can be assigned to
multiple groups (16 max).
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Network System Configuration
LP
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Lighting Plan for Conference Room
Multiple luminaries for multiple
functions
Multiple preset scenes
Manual controls
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Conference Room Lighting Plan
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Commissioning
DALI Ballast Manufacturer
DALI Controller Manufacturer
Luminaire Manufacturer
Architect Lighting Designer
Electrical Engineer
Electrician
Manufacturers Representative
Programmer
Systems Integrator
Commissioner
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Commissioning:
DALI Product Manufacturer Test product prior to shipment
Luminaire Manufacturer
Test assembly prior to shipment Could preprogram addresses, groups, scenes
Electrician Require high quality splices and terminations
Document power wiring and control wiring
Verify power wiring and lamping
Verify DALI loop broadcast raise/lower, count ballastquantity
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Commissioning: (Contd)
Lighting Designer / Electrical Engineer
Determine preset levels for scenes
Programmer
Assign and document groups
Assign and document scenes
Systems Integrator
Combine with IT or AV?
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Commissioning: (Contd)
Manufacturers Representative May be the Commissioner
Commissioner
Two people with walkie-talkies Document groupings
Flash addressed ballast until that ballast is found
Cycle through addresses to find ballast address
Document ballast addresses on lighting plans
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Benefits of DALI
Simplify wiring installation
Decrease energy usage
Lower maintenance cost
Increase space flexibility
Improve occupant comfort
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Limitations of DALI
Command Set
Fade Time:
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Wish List
Compact Fluorescent Ballast
Incandescent Dimmer 120 Volts
Incandescent Dimmer 12 Volts
Metal Halide Ballast
LED Driver
Occupancy Sensor
Photo Sensor
Daylight Harvesting
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Wish List (Contd)
Schedulers
Peak Load Shaving
Audio/Visual Interface
Motor Control for Blinds, Curtains,
Projection Screens
Gateways for BACnet, DMX512,
LONWORKS,andTCP/IP
Interface to 0-10V dimming system
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Credits
Dalai Lama
Ian Ashdown
Bob Beatty
Brian Beck
Dick Brecher
Pekka Hakkarainen
Gregg Hauser
Wayne Morrow
Dave Peterson Steve Purdy
Nehal Shah
Howard Yaphe
Kayo Shibano
Advance / Philips
DALI-AG
Leviton
Lightolier
Osram Sylvania
StarField Controls
Tridonic
The Watt Stopper
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Conclusion
My original premise
Discoveries
Not enough products
Sustainable Competitive Advantage
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HELLO DALI