Presentation on theme: "DALI Installation: A Case Study"— Presentation transcript:
1 DALI Installation: A Case Study LightFair Seminar 22 May 8, :30 AMOwner - HOKDaryl Dalling - DynalectricPete Horton – The Watt StopperRichard Miller – RNM EngineeringCharles Knuffke – The Watt Stopper
2 Represented by: Rick Miller The OwnerRepresented by: Rick Miller
9 1 x 4 Parabolic Luminaire2-F40T12 over/under lamps, magnetic ballast, tandem wired, pre-fabricated wiringHello DALI !1-F32T8 single lamp, DALI ballastPower reduction from 92 watts to 35 watts
10 DALI Design Parameters Decide DALI Bus to run with Lighting CircuitMax loading of circuits based on lighting wattsMax DALI address per busDALI ballast and DALI controllers consume powerDALI power supply is limited to 250 maActual power supply is 150 ma
15 HOK DALI Summary Total 2nd FL 3rd FL Item 376 195 181 DALI Addresses 333169164DALI Ballasts642DALI Relays 120V321715DALI Relays 277V472720DALI Groups5DALI A / V Relays4525DALI 5-scene Controller3DALI 4-scene Controller11DALI Busses10277 Volt Lighting Circuits
16 HOK DALI Summary Total 2nd FL 3rd FL Item 26,315 13,831 12,484 Connected Lighting Watts29,42514,68514,740Square Feet per Floor0.890.940.85Watts per SF
17 LEED EA Credit 1.1 Allowed W/SF Allowed Watts Actual Watts % Reduction Allowed W/SFAllowed WattsActual Watts% ReductionASHRAE1.338,25226,31531%CA T241.235,31025%Reduce lighting power density to 30% below the standard, (2 points)
19 Design Build Guidelines Specifications- Provide outline of minimum quality and expectationsHistorical Requirements- Dictate a portion of the scope or design (ie. Cannot penetrate or deface existing surfaces)Building Management Requirements- In this case we had specific fixture requirements, as well as set back restrictions, lamp colors, BMS and lighting control interface
20 (cont’d) Design Build Guidelines Lighting Restrictions- Lighting (fluorescent vs. incandescent), especially in California can get tricky with Energy Conservation Act Title 24. Lighting budget also plays into lighting designLighting Control- Title 24 has minimum guidelines. Design criteria and use of space are also implemented
21 (cont’d) Design Build Guidelines All Applicable Codes- This dictates wiring methods, egress, fire-life safety,etc.Budget- Small budget, Fewer options
22 Process of Selecting Lighting Package Package: Package is the keyword. Key resource is the Light RepresentativesDesign Criteria:Understanding Spec & ScopeBudget: Critical element is to match dollars with space requirementsCommunication: Sales & marketing insure client understanding final package
23 Base Bid Lighting Controls Criteria Use of SpaceConference RoomsSmall OfficesLarge Open AreasTitle 24 (must be implemented)Building Management InterfaceOwner Design Criteria
24 Control Methods: Standard Lighting Control Individual switching of office and open areasLV Lighting Control Panel and Local DevicesMulti-Level SwitchingTwo Gang Devices/Two Ballast FixturesDimming of a single room or fixtureFluorescent Dimmers & Dimming Ballast(continued)
25 Control Methods: Standard Lighting Control Dimming to a pre-set scene sequenceFull Grafik Eye SystemOccupancy Sensors
26 Control Methods: DALI Lighting Control Individual switching of office and open areasvia DALIMulti-Level Switching – via DALIDimming of a single room or fixture – via DALIDimming to a pre-set scene sequence – via DALIOccupancy Sensors – non DALI
27 Bringing the System Together Fixture PackageFixture ControlDALI ProtocolDALI Ballast - Coordinate with fixture manufactureElectrician - Willing electrician; Education of the simple installDALI Magic - DALI compatible switching, interface solutions (non DALI fixtures), and startup & commissioning)
28 PRO-Electrical Quotes More forgiving (all switching options are always available, whereas conventional switching requires multiple switch legs)Smaller pipe and fewer wires to pullLayout is simpleChanges or added switches are easyQuicker lighting control installation
29 (cont’d) PRO Electrical Quotes Change order friendly (owner & contractor)Non-electrical programming (software based)Ballast self-addressing (no dip switches)Troubleshoot wiring easier (fewer wires and make-up)
30 CON-Electrical Quotes Interface wiring between ballast and fixture manufacturer was poor/bad wiring (a few mis-wired ballasts)Electricians worried about mixed voltages and make-up in common boxesDALI on a non-conduit installation (ie. MC) no value savings in laborCall backs could be confusing to service people
31 SummaryWhen questioned, all of the electricians involved would do another DALI system. All were impressed and thought it was a good education.
33 Minimum Requirements to Build a System DALI BallastDALI power supply (Bus controller / Bus Master)Local Controller
34 Starfield Interface Switches HOK DALI SchematicTridonic DALICFL BallastsH/N/G plus 2 DALI wiresCFL BallastsAdditional DALI BussesTridonic DALI Linear Fluorescent Dimming ballastsTridonic DALI Relay / Watt Stopper ON/OFF RelaysDALI wired bus - 2-wire topology & polarity independent - up to 64 devicesDALI BallastBlind/MotorcontrollerDALI ControlsNon-DALI DevicesWatt Stopper / Starfield Scene SwitchesAn overview of some of the controls in a DALI system.This diagram is representative of the controls used at the HOK building in San Francisco.There are three different communication protocols used in this diagram.The DALI control loops, five are shown here due to the number of ballasts or power consumption of the DALI bus.RS-232 protocol from the Router to the DALI loop controllersTC/PIP over Ethernet from the PC’s to the RouterDALI BUS is topology and polarity independentMultiple manufacturers products will be used for a typical solution, therefore it is important that there be a system integrator or controls company taking system responsibility. At HOK, there were three manufacturers involved in the solution. Tridonic provided the PC Software, loop controllers, and ballasts; The Watt Stopper provided the scene controllers, DALI relays, and system commissioning; and Starfield provided the DALI relay switches for integration into the audio Video equipment.Employee Workstation for lighting overridesStarfield Interface SwitchesWinDim Control InterfaceTridonic DALIBus ControllersWinDim Net ServerRouterIP over LAN
35 DALI System Components TridonicBallastsLinear fluorescent 1/2 F32T8 & 1/2 F54T5HO.CFLLoop Controller (Bus Masters)SoftwarePalm-DimWin-DimWin-Dim netWatt StopperScene Controls4 button scene switchesRelay ModulesNon dimmed lightingRequired components to have a working system.The ballast which stores the memory and accepts DALI Commands.The Loop Controller or Bus Master provides power to the DALI buss and acts as a protocol translator.Control devices based upon the application and desired control. Without control the control devices the lights will operate at 100% light level.Optional Control DevicesGroup Controls may include occupancy sensors, photo sensors or demand controllers. Typical action is “group to light level”Scene controls can be represented by multi-button wall switches. Typical control is “Group A to Level, Group B to OFF”Relay Modules accept DALI commands for ON/OFF control of non DALI loads. Typical applications are non DALI lighting and Audio Video Equipment.NEMA is working on making sure devices play nice.
36 DALI System Components StarfieldScene ControlsIn Conference rooms to match A/V controlsSwitch / relaysShade ControlsProjector LiftScreen up/downKey Issue was that devices could coexist with other manufacturer’s devices without causing the system to crash or other devices not to work (“play nice” requirement)Required components to have a working system.The ballast which stores the memory and accepts DALI Commands.The Loop Controller or Bus Master provides power to the DALI buss and acts as a protocol translator.Control devices based upon the application and desired control. Without control the control devices the lights will operate at 100% light level.Optional Control DevicesGroup Controls may include occupancy sensors, photo sensors or demand controllers. Typical action is “group to light level”Scene controls can be represented by multi-button wall switches. Typical control is “Group A to Level, Group B to OFF”Relay Modules accept DALI commands for ON/OFF control of non DALI loads. Typical applications are non DALI lighting and Audio Video Equipment.NEMA is working on making sure devices play nice.
37 Ballast Supports two way communications Stores group / scene programs Monitors lamp performance, provides energy consumption data.Provides predictable dimming responseIssue – CFL ballast were not available until after the space was occupied, which created the need for a UL DALI relay module.The ballast represents the highest cost of all the components in the system.They are individually addressed and controlled.Ballasts store their own programs regarding their address, and the 16 scenes and groups to which they are in.The ballasts can report the following information on their status…
38 DALI Loop Controller (Bus Master) Required for any DALI SystemProvides power for the DALI datalineActual power supplied was 150 ma, not 250 ma as specified.Ballast quantity or power consumption dictates bus quantities.Provides protocol translation from DALI - RS-232One required for every 64 DALI ballasts
39 Scene / Group Switches Single gang four button switches Individual office control.Ballast and non dimmed CFL controlOpen Office ControlArrive / Depart Group ControlIncludes group raise / lower function.
40 Scene Control - Presets MeetingScene 2ProjectionScene 3PresentationScene 4Discussion
41 DALI Relay Controls Available in Power Packs or switch configuration. Used for ON/OFF control off non DALI loads.Used for:Non DALI lighting loadsAudio Video EquipmentShades / BlindsNON DALI Ballast or other loadPower WiringDALI Relay ModuleWatt Stopper Power PackDALI Bus
42 RouterUsed to convert eight RS-232 DALI bus controllers to single Ethernet I./P address.Expensive and provides little value.
43 Software for Commissioning Assigned unique address for each ballastAddress routine brings one ballast to 100%, dims all other ballasts on network.Supports replacement or addition of ballastsAllows manual control of ballastsConfigures scenes and groups.
44 Software for Operation PC basedManages single DALI bus controlAllows monitoring and controlServer FeaturesManages multiple DALI bus controlsProvidesSchedulingMulti bus communication.Allows employee workstations to interface to DALI network.Stores historical data
45 Lessons Learned Significant IT requirements for this project. One manufacturer doesn’t have everything yet.Scheduling needs additional development.Distributed Processing
47 The Goal of Commissioning Verify all components are installed properly and working as specified.To ensure that the owner has complete documentation on the system as it was installed.
48 Why DALI Commissioning is extra important More points of control than ever beforeMore wire in the ceiling than most systemsMore capabilities means more settings to deal with
49 DALI Requirements All components must be completely installed Line Voltage Wiring, DALI Communication Bus, All Ballasts and Fixtures, and any DALI Override devicesNo Faking It!If power is shut off to DALI bus, all lamps go to 100% by default.
50 Start by reviewing the Hardware 5 Bus Masters and a Router in a Custom Enclosure
51 And the switches Four 4-Button Master Switches by the Main Entry Four Interface and two 4-Button Switches in the Large Conf. Room
52 Once everything is ready Each ballast address assigned by software wizard, so they are not readily apparent.Commissioning the 1st Bus took 15 minutes, next bus didn’t get finished before the end of the first day.Start with a Clean Reflected Ceiling diagram and a sharp red pencil.
53 DALI Addressing DALI Bus DALI Ballast Bus Master 2 4 10 5 8 11 14 16 121926673132725242333203137283632151817221930213829353439
54 Identifying the Addresses Once each ballast was assigned, 2 people work together to select the address in software, and match it with a fixture in the space.“Optical Feedback” made the process easy. However, tenants needed to be advised that we would be testing the system.Software has since added a strobe feature.Several times we had a bus that had to be re-addressed. This turned out to be due to a bug in the software.
56 DALI Software4 Separate Tools – Palm Handheld, DALI Tool, WinDim, WinDim-netLooking forward to Software improvements.Originally info entered into ballasts via WinDim was going to have to be re-entered into WinDim-net software (approximately 2400 setpoints).Some places, groups were numbered 0-15, others 1-16.
57 Setting Up the SystemBallast were assigned to groups, and levels (from 0-255) were set for the various scenes. Groups were exclusive, and easy to track.Commands from WinDim could be used to communicate to devices in 3 address mannersBroadcast = All DevicesGroup = Specific Group from 1-16Address = Specific Ballast
61 TroubleshootingHad Electrician look for ~16VDC on the DALI bus to the ballasts, and verify ballast wiring.Used the software to detect failures, and sent override commands from the softwareDataline switch, in addition to overriding groups, had two testing features that helpedBroadcast On/OffRaise Lower entire Group
62 Project Takeaways Knowing the Bus wire runs is Key. Working with the electrician who did the bus wiring is even better.Keep the busses manageable, and try to control obvious groups together.Get full info on all equipment to be interfacedConference room has projector lift, screen and shade controllers. However, lift used a 24V signal, and switch contacts was 120V output.
64 Advice for Future Commissioners Learn to use Microsoft ExcelMake sure you’ve got time to check out system, and understand how checkout will impact occupants.Each time we connected to a specific bus, we had to re-initialize, and that caused all lights to drop to low level.Startup up of this site required approximately 60 hours over 12 visits. This broke down to be about 1/3 “New Technology issues”, 1/3 problem issues, and 1/3 revising setpoints to meet owner desires.
65 DALI still in Early Adopter Stage High tech, but based on Ballast communication within a single DALI BusDifficult to take a contact closure across different busses.No memory of previous levels.Central Server PC issues commands for standard scheduling.
66 Hope for AdvancesOpen protocol with information stored in the ballast.Offers an opportunity for other companies to develop software, and drives existing package to improve.Existing Bus Master is RS-232 In –> DALI Out.Future Bus Masters could have other inputs, and logic to assist initial troubleshooting.