This article explores how the CBU-A2D device enables wireless control of DALI luminaires, and what are the options in control and connection.
Casambi CBU-A2D allows DALI drivers and sensors to be connected to a Casambi network. With a DALI power supply of 20mA, CBU-A2D allows multiple DALI drivers to be connected. Note that when connecting multiple drivers, the voltage drop in the DALI bus should not exceed 2 volts between CBU-A2D and the furthest device in the bus.
For DALI driver control CBU-A2D offers four types of fixture profiles;
- Automatic addressing of the DALI bus devices (luminaires)
- Broadcast -type control of all devices in the bus simultaneously
- Control of pre-addressed drivers (requires separate addressing tool to be used)
- Control of DALI group -addressed drivers (requires separate addressing tool to be used)
CBU-A2D offers both DT6 and DT8 profiles.
The fixture profiles for CBU-ASD are listed in the datasheet, available from the downloads section at https://casambi.com/ecosystem/cbu-a2d/.
A general wiring diagram for one DALI driver connected to CBU-A2D is as follows:
For DALI sensor integration with CBU-A2D, Casambi offers two fixture profiles:
- #11510 CBU-A2D DALI/BC/Sensors
- A fixture for one DALI sensor providing presence and/or daylight sensing in the Pass-Through mode - delivering control commands observed on DALI bus. Sensor is using DALI levels to control the dimming output.
- It uses linear dimming curve
- #18020 CBU-A2D DALI/BC/Sensors (log)
- A fixture for one DALI sensor providing presence and/or daylight sensing in the Pass-Through mode - delivering control commands observed on DALI bus. Sensor is using DALI levels to control the dimming output
- It uses logarithmic dimming curve
The wiring of such sensor arrangement is:
