16th KNX engineer course: dimming system design and constant illuminance control

After four and a half days of theory and practical study, the participants completed the closing examination on the morning of the final day. All four passed and received the KNX international certification certificate.

The course began with KNX system architecture and covered bus cabling standards, ETS engineering configuration, device commissioning and common fault diagnosis, alternating theory with practice so that participants could independently handle the commissioning of small to medium KNX projects after the course.

Dimming carried the greatest weight this time. The instructor first clarified the boundaries of the three dimming methods: DALI suits digital dimming circuits needing fine control, 0-10V has broad coverage but limited precision, and phase-cut is mainly used for retrofitting existing fittings. Then the most common site error — mixing fittings and drivers of different dimming methods on the same circuit, which directly causes some fittings to be uncontrollable and to flicker, at a high cost to redo afterwards. Verifying circuit by circuit must therefore be done during detailed design.

Constant illuminance control was the other main thread: holding illuminance at a set value rather than as bright as possible, combined with daylight use and scene dimming, saves energy without sacrificing the experience of using the space. Participants completed the full sequence at the training bench, from matching fittings to drivers and allocating circuits through to setting scene parameters.

Thank you to every participant for their commitment and trust. The next cohort is open for booking.