What is the difference between DALI-2 and D4i?
D4i extends DALI-2 with a standardised data and power interface inside the luminaire, which allows luminaire data and sensors to be read. Both remain based on IEC 62386.
Lighting services
Lighting Control Systems
DALI-2, KNX and wireless lighting control: strategy, hardware, programming and commissioning.
01Overview
Supply and engineering from one team
Powersense supplies drivers, sensors, gateways and controllers, and engineers the control: strategy, scenes, addressing, programming and integration with the building systems.
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02Scope and process
Engineering scope and deliverables
- 01
Control strategy
Zones, scenes, schedules, presence and daylight rules are defined for each space and its use.
DeliverableControl concept - 02
Protocol and architecture
DALI-2 or D4i (IEC 62386), KNX, Casambi or PoE is selected, with line, gateway and power-supply budgets calculated.
DeliverableArchitecture diagram - 03
Device selection
Drivers, sensors, switches and gateways are chosen, and compatibility with the luminaires is checked.
DeliverableDevice schedule - 04
Addressing and programming
Addressing, grouping, scenes and sensor parameters are programmed and documented.
DeliverableAddress list, configuration files - 05
System integration
Interfaces to KNX, the BMS and emergency lighting are set up, and energy monitoring is configured.
DeliverableInterface list - 06
Commissioning and handover
Light levels are tested, daylight sensors are calibrated, users are trained and the project is backed up.
DeliverableCommissioning report, project archive
03Standards
International standards applied
These standards form the technical basis for design and equipment selection. The exact set is confirmed for each project against the national regulations in force.
- IEC 62386DALI, the digital addressable lighting interface: communication, control gear and control devices.
- ISO/IEC 14543-3Home and building electronic systems: the KNX communication protocol.
- EN 50090Home and building electronic systems (HBES): general requirements, installation and EMC.
- EN 15193-1Energy performance of buildings: energy requirements for lighting and the LENI indicator.
- EN 12464-1Lighting of indoor workplaces: illuminance, uniformity, glare (UGR) and colour rendering.
- EN 1838Emergency lighting: escape-route illuminance and duration of operation.
04Products
Products we supply
- DALI-2 and D4i drivers and controllers
- KNX interfaces and gateways
- Wireless control: Casambi and ZigBee
- Presence and daylight sensors
- Street-lighting control nodes
- PoE lighting and energy monitoring
05Project types
Typical project types
- Offices, schools and hospitals
- Hotels and residences
- Malls and public buildings
- Industrial facilities
- Municipal street lighting
- Car parks
06Technical notes
Technical notes and FAQ
When is wireless control suitable?
In renovations where new control cabling is impractical. Wired DALI or KNX is preferable for large or critical installations.
07Keep exploring
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