ELECTRIC.IE • The Magazine & Website for the Irish Electrical Industry • 57 Rittal The new generation of DALI compact occupancy detectors Occupancy detectors with integrated DALI application controller DALI-2 certified products DA More mounting flexibility New app and logic functions 01 280 7205 connor@marlinent.ie beg-luxomat.com New installation functions Optimised range For energy-efficient lighting control For more information about B.E.G. visit: https://www.beg-luxomat.com/en/ Industry News “This state remains permanently until the next movement, or the light is switched off after a preset time without detecting movement again. A calendar function can also be used to implement a night mode. “Especially in large projects such as the Caleido Tower, an orientation light is often used to visually illuminate the building. The lighting of the IE logo on the façade is automatically switched on in the evening by the B.E.G. KNX switching actuator with a calendar function. Individual luminaires are also switched on and off with switching actuators. This is achieved for example, when illuminating screens for presentations. With the calendar function, the light is automatically switched off at a preset time in the evenings when there are no more classes and, in addition, no movement is detected in the surrounding areas. This affects the refectory, for example, where the B.E.G. PICO only functions as a twilight detector and only regulates the light to the desired brightness depending on the natural daylight.” The offices and meeting rooms were also equipped with KNX versions of the B.E.G. PICO with push-button interfaces. The advantage of a pushbutton interface compared to KNX push-buttons is the ‘free choice of switch programme’. This means that the desired design and an interface with four channels for several rooms can be used. “The detector can be operated in full automatic or semi-automatic mode,” said Mr Jones. “In the full automatic mode, the light switches on when there is movement, and the brightness falls below the desired value. “The user can manually switch the light on or off or dim it by means of a push-button. In semi-automatic mode, the lighting is always switched on via the push-button. Then, as in full automatic mode, the follow-up time is restarted with each movement and the lighting is switched off after the followup time has elapsed. “For the IE Business School, it was decided to use the semi-automatic mode and the regular mode so that the lighting was regulated to the desired brightness value depending on the daylight. If the amount of daylight increases, the amount of artificial light decreases accordingly and vice versa. If there is enough daylight, the artificial light is switched off in spite of movement and possibly switched on again later if the level falls below the set value. In addition, the air-conditioning systems are also controlled according to movement in order to additionally save energy.” In October 2021, the IE Business School was opened in the Caleido Tower in the presence of Felipe VI, King of Spain, and António Guterres, Secretary General of the United Nations.
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