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A Specifiers View of DALI June 4, 2002 4:00 PM Seminar #18 Richard Miller, PE, LC Hellmuth, Obata + Kassabaum, Inc. Sponsored by The International Association.

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Presentation on theme: "A Specifiers View of DALI June 4, 2002 4:00 PM Seminar #18 Richard Miller, PE, LC Hellmuth, Obata + Kassabaum, Inc. Sponsored by The International Association."— Presentation transcript:

1 A Specifiers View of DALI June 4, 2002 4:00 PM Seminar #18 Richard Miller, PE, LC Hellmuth, 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.

2 DALI Digital Addressable Lighting Interface DALI is a protocol dedicated purely for lighting control DALI allows individual control and monitoring of lighting systems DALI provides precise dimming DALI promises flexibility in design, and ease of installation

3 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

4 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

5 Current Wiring for Conference Room

6 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

7 History: In USA NEMA Controls Council –Wiring Devices, Controls, and Ballasts –Liaison with International Electrotechnical Commission (IEC) –DALI subcommittee IESNA Controls Subcommittee –Established to develop a control protocol –Reviewed several existing systems –Asked by NEMA to comment on DALI proposal

8 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 (

9 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

10 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

11 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

12 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)

13 Protocol: Control Interface Intent Electrical Media Wiring Bits and Bytes No Collision Detection

14 Control Interface: Intent Low cost Simple Low interference Interchangeable

15 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 <250 ma Speed – 1,200 bits/sec (compare to Ethernet at 100Mb/s) Must be able to withstand live voltage

16 DALI Ballast Block Diagram

17 Control Interface: Media Two wire Twisted pair not required Shielded pair not required Non-polarized No End-of-Line resistor Standard building wire

18 Single DALI Loop Diagram BusMaster PCA EXCEL one4all IR Receiver wall switch Interface PIR Interface PCA EXCEL one4all Digital bus DALI-PS Computer User

19 Control Interface: Wiring Maximum length of 300 meters Open topology: chain, star, tree Class 2 (may be wired as Class 1) (for ballasts, controls?) May be installed with line voltage

20 DALI Wiring Topology Diagram Serial ConnectionStar Connection

21 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

22 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

23 Protocol: Command Set Current command set is for ballasts only. >100 commands defined (with space for future commands) Ability to program, control and monitor status information

24 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

25 Ballast Commands: Information from Ballast (Query) –Actual Level, –Power ON Level –System Failure Level –Max –Min –Group Assignment –Scene Level –Fade Time –Random Address –Version Number –Device Type

26 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 5…255 – Future device types

27 DALI Programming Each DALI loop can support up to 64 individual addresses When in initial programming mode: Each ballast generates a 24 bit random address Control unit then assigns a 6 bit short address (0 to 63) to each ballast May reassign a 6 bit address to each ballast May assign a 6 bit address by disconnecting a lamp from the ballast

28 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 preset levels (scenes) –Scenes may be applied to ballasts –Scenes may be applied to groups

29 Wiring per NEC Approved for use in Class 1 and Class 2 installations DALI wiring may be with line-voltage wiring Could use a 5-wire prefabricated wiring assemble Installation must comply with Code Verify rating of control units

30 Electricians Wiring Diagram

31 Auxiliary Components Power Supply –Voltage – 16VDC (9.5V to 22.5V) –Power – <250 ma Controller Units –Scene Controller –Daylight Harvesting Controller –Occupancy Controller Computer Interface (optional)

32 Sensor Connection Diagrams To Control UnitTo DALI Loop

33 Auxiliary Components (Contd) Gateways –DALI – RS232 –DALI - Ethernet –RS232 – Ethernet hub –In separate cabinet from the branch circuit panelboard

34 Busmaster Enclosure Installation RS232 Connection

35 Panelboard and Busmaster Cabinet

36 Complete Building Control

37 Next Generation Technology

38 Palm Pilot Interface dim up and down Select groups Select light scenes Off

39 User Interface

40 Protocol – Intent: Interchangeability Manufactures: web site ( DALI protocol is the minimum requirement –Provides compatibility among manufacturers Proprietary features are not prohibited –DSI –Line-voltage control

41 Designing Control Systems Lighting Plan for Typical Office Lighting Plan for Conference Room

42 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

43 STEP 1: Design fixture layout or retrofit existing fixtures with DALI compatible ballast.

44 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

45 STEP 3: Design controls into space and determine easiest connection to DALI bus. Identify placement of bus power supply and optional network interface.

46 STEP 4: Address DALI ballasts. Determine fixture groupings and map control devices to fixtures. Each ballast can be assigned to multiple groups (16 max).

47 Network System Configuration LP

48 Lighting Plan for Conference Room Multiple luminaries for multiple functions Multiple preset scenes Manual controls

49 Conference Room Lighting Plan

50 Commissioning DALI Ballast Manufacturer DALI Controller Manufacturer Luminaire Manufacturer Architect Lighting Designer Electrical Engineer Electrician Manufacturers Representative Programmer Systems Integrator Commissioner

51 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 ballast quantity

52 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?

53 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

54 Benefits of DALI Simplify wiring installation Decrease energy usage Lower maintenance cost Increase space flexibility Improve occupant comfort

55 Limitations of DALI Command Set Fade Time: <0.7 sec to 90 sec Requires computer to initialize and program Intended only for lighting Not enough products

56 Wish List Compact Fluorescent Ballast Incandescent Dimmer – 120 Volts Incandescent Dimmer – 12 Volts Metal Halide Ballast LED Driver Occupancy Sensor Photo Sensor Daylight Harvesting

57 Wish List (Contd) Schedulers Peak Load Shaving Audio/Visual Interface Motor Control for Blinds, Curtains, Projection Screens Gateways for BACnet®, DMX512, LONWORKS®, and TCP/IP Interface to 0-10V dimming system

58 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

59 Conclusion My original premise Discoveries Not enough products Sustainable Competitive Advantage


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