Which DIN rail dimmer modules support soft-on/off, scenes and MASTER OFF?

Question

Hello everyone, I’ve got quite a conundrum: following the refurbishment of the lounge, I’ll have around 6–8 independent lighting circuits. I’d like each of them to be dimmable; I’m planning to achieve this using push-button switches and dimming modules housed in the distribution board (the whole...

Anonymous · Accepted Answer

will need1. a KNX power supply 2. a USB port 3. 8x12-35V DC binary input – for connecting doorbell switches – switches for controlling a single circuit can be connected to a single input; this will work in the same way as for staircase/cross-wiring. 4. 2-channel dimmer 2x300.5. ETS4 software (Lite or Basic version)As for programming, it’s all done in the same way. There’s no such thing as harder or easier. They just have more or fewer options. PS.If you intend to use LED or energy-saving bulbs, they must be compatible with dimmers.Ordinary bulbs will flicker, and the dimming effect is rather poor.

Dj.MaX · Answer

Does anyone have any ideas?

Anonymous · Answer

Every KNX dimmer has this function. The dimming time when switching off and the brightening time when switching on are set separately. In addition, the switch-off level can be adjusted so that, for example, fluorescent lights do not flicker.

But as you were planning a low-cost installation, that problem is off your hands. It’s not possible.
PLCs don’t have dimmers. That’s one of their drawbacks.

Dj.MaX · Answer

Could you recommend a specific KNX system, provided it’s reasonably easy to programme?I should also add that it’s important to me that it can be controlled via doorbell switches.

Dj.MaX · Answer

This is at least one solution worth considering.
Personally, I’ve also found solutions using the Velleman VM101 MULTIFUNCTION DIMMER
http://sklep.avt.pl/p/pl/485978/wielofunkcyjny+sciemniacz.html
And also the F&F SCO-815, which will be available from the new year, although the dimming only works whilst the switch is held down, which won’t be entirely practical.

I reckon I’ll definitely go for one of these solutions – I’m sure I’ll find the budget for it

Do you have any other ideas?

Anonymous · Answer

In KNX, you generally have the following functions:
1. A short press of the ON/OFF button, which allows you to dim or brighten the light.
2. A long press acts as a standard dimmer. It either brightens or dims the light. When you release the button, the light remains at the level it was at when you let go. Sometimes you can also programme the output so that the ON/OFF button switches the light on at 100%, or to a value set via the button.
If, instead of bell-shaped switches, you’d like to have glass ones,

http://www.knxshop4u.ch/media/images/popup/mdt_glastaster_BE-GTT4W-01.jpg

at around 500 zł including VAT, you’ll need a special KNX cable. Which you run point-to-point.

Dj.MaX · Answer

I’ll write down exactly what functionality I need once again (the things one does to please one’s wife)
I want to control the lights on 4–8 circuits using a two-way switch. The most important thing is that it has a soft-on and soft-off function. Holding the switch down for a long time should brighten or dim the light.
A memory function and the option to add a master switch to turn off all circuits would be welcome.
The Lutron controller

perfectly meets these requirements, but you can probably guess why I’ll be giving that one a miss – I’m simply looking for a cheaper alternative.

Anonymous · Answer

Of course, KNX offers this functionality. It’s simply a matter of programming. If you’re about to start a renovation, you can run the KNX cable anyway. In time, you’ll simply need to replace the switches with ‘standard’ ones in the KNX system.The solution using doorbell buttons is a bit of a mixed bag. Although I do use it from time to time. The main drawbacks are the lack of customisation options, the labour-intensive installation process, and the rather unattractive/outdated design. The Lutron solution involves ‘modifying’ the KNX system, but in such a way that it is only compatible with itself.

Which DIN rail dimmer modules support soft-on/off, scenes and MASTER OFF?

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