The Domus CHAM-DIM-DALI-5C is a 5-channel DALI dimming interface for1224V DC constant-voltage LED the component that lets a buildingautomation system drive LED strip, including RGB, RGBW and RGB+TW.

What it actually does in a control chain

• It accepts a standard DALI signal from any automation system and converts it toPWM output for constant-voltage LED. That conversion is the whole job DALI is a digital bus, LED strip needs pulse-width modulation, and nothing else in the chainbridges the two.
• 1 to 5 channels, so one unit covers single colour (1 channel),tuneable white (2), RGB (3), RGBW (4) orRGB+TW (5).
• Auto or manual addressing. Auto is faster on a large install; manual is what youwant when the channel order has to match a drawing.
• Digital display on the housing which matters more than it sounds. Commissioninga DALI address without a display means working blind from the automation end.

It is not a driver, and it does not power anything

• A constant-voltage 1224V DC LED driver is required and is not included.The interface sits between the driver and the strip.
• The chain is: DALI system this interface constant-voltage driver LED strip.Missing the driver is the usual reason one of these arrives and nothing lights.
• Output capacity 5 (60180)W depending on the supply voltage at12V each channel carries less than at 24V. Size the driver to the actual load perchannel, not to the interfaces maximum.
• Standby consumption 2mA on the DALI bus worth having when you arecounting devices against a bus limit, because DALI segments have a finite current budget.

Specifying it

• Input 1224V DC. Dimming: PWM.Protocol: DALI.
• Housing 170 59 29mm, white plastic. Allow for it in theenclosure at 170mm long it is not a component you tuck behind a plate as anafterthought.
• Digital display for addressing and setup.
• No IP rating recorded, so treat it as an indoor enclosure component.
• No operating temperature range recorded which matters if it is going in aceiling cavity or a hot switchboard. Ask us.

Two record entries that do not describe an interface

• Colour temperature: RGB. RGB is not a colour temperature. On anRGB product that entry is at least understandable there is no fixed Kelvin figure to give but it means anyone filtering by colour temperature sees RGB offered as one.22 products in this catalogue carry it, including two cable connectors.
• Built-in LED as the bulb type, on a control interface with no LED init at all. The tenth product found carrying a lamp type on hardware with no lamp.

Where it works

• Commercial and residential automation anywhere a DALI system needs to driveLED strip rather than DALI luminaires.
• Colour and tuneable-white installations under central control: circadian white,feature RGB, RGB+TW joinery.
• Retrofitting strip into an existing DALI building, where the bus already exists andthe strip does not speak it.
• Not on its own it needs a constant-voltage driver and a DALI source.
• Not for mains-voltage LED this is 1224V DC only.

Specifying it

5-channel DALI dimming interface for 1224V DC constant-voltage LED. PWM output.15 channels: single colour, tuneable white, RGB, RGBW, RGB+TW. Auto or manual addressing.Output 5 (60180)W. DALI standby consumption 2mA. Digital display. Housing170 59 29mm, white plastic. A constant-voltage 1224V DC LED driver is required and not included. No IP ratingor operating temperature recorded ask us before a ceiling cavity or a hot switchboard. Our recordlists a bulb type and a colour temperature of “RGB”; it is a control interface with no LED. Warranty notrecorded.

Supplied and supported by Lights For You.

Questions

Does it come with a driver?

No, and this is the usual reason one arrives and nothing lights. It is an interface, not a driver it sits between your DALI system and the LED strip and converts the signal, but it does not power anything. You need a constant-voltage 1224V DC LED driver as well. The chain is: DALI system, then this interface, then the driver, then the strip. Tell us the load and we will size the driver with you.

What can it control?

Anything from single-colour strip to RGB+TW, because it has five channels you can use one to five of: one channel for single colour, two for tuneable white, three for RGB, four for RGBW and five for RGB+TW. That is the reason to choose it over a simpler dimmer one component covers every strip type you are likely to specify in a job.

How much load can it carry?

5 (60180)W depending on supply voltage each channel carries less at 12V than at 24V. Size the driver to the actual load per channel rather than to the interface’s maximum, which is a ceiling rather than a target. If you are running long strip runs or several zones from one point, tell us the layout and we will work through it.

Will it fit in my enclosure?

The housing is 170 59 29mm, which is worth allowing for properly at 170mm long it is not a component you tuck behind a plate as an afterthought. It is white plastic and designed for an indoor enclosure. No IP rating is recorded, so do not put it anywhere damp without asking us first.

Why does it matter that it has a digital display?

Commissioning. Setting a DALI address on a device with no display means working blind from the automation end and hoping the right unit responded. A display on the housing lets the person at the ceiling see what they are addressing, which on an installation with several interfaces is the difference between a straightforward commissioning session and a slow one.

What does the 2mA consumption figure mean for me?

DALI bus segments have a finite current budget, and every device on the bus draws from it. At 2mA this interface is light, so you can fit a good number of them on a segment before the power supply becomes the limit. It is the sort of figure that only matters when you are counting devices but when you are, it matters a lot.

Can I use it with 240V LED?

No. It is a 1224V DC constant-voltage device, and mains-voltage LED products need a different approach entirely. If you have a DALI system and mains-voltage fittings, tell us what they are and we will find the right control component often the fitting itself is available in a DALI version, which is simpler than adding an interface.