Case study: Schröder Landmaschinen

Innovative lighting with Excellum2

The German company Schröder Landmaschinen was fully focused on innovative technology for the expansion of its headquarters in Wildeshausen. The Excellum2 light control system fits in perfectly with this ambition.


In 2015 headquarters in Wildeshausen underwent a thorough makeover. A new three-storey building houses an office complex with a usable surface area of 1000 m² and a 772-m² showroom. The focus was on sustainability and innovation in the design of the new building. ETAP’s Excellum2 light control system played a major part in this process.


Schröder’s facility management did not choose Excellum2 for no reason. Decisive factors included energy efficiency, user-friendliness and flexibility. In addition, Excellum2 is able to communicate with various other protocols, which makes the system future-proof. In consultation with the client, the installation’ system structure was established in advance by ETAP and consultancy LBT-Nord GmbH. In this context, needs and requirements in terms of lighting were studied for each space or zone (offices, showroom, conference rooms, corridors, etc.). On this basis the various lighting scenarios and controls were established (see box).


Smart building 
The next step consisted in the drawing of the location of the luminaires and other components (push-buttons, DALI switches and multi-sensors for motion detection and daylight-dependent control). In addition, the alarm installation was integrated into the light control. When at the end of the day the alarm is activated, the light fixtures are automatically switched off, except those that have to stay switched on for safety reasons. In the beginning of the working day, when the alarm is deactivated, the lighting installation switches over to normal calendar mode. During a break-in alert, all luminaires are switched on with full illuminance. A good example of a ‘smart building’: the integration of several building techniques to maximise efficiency of the various technical installations.




• Calendar function: at the beginning of the working day, the lighting installation automatically goes into ON mode; in the evening it goes into OFF mode. The calendar can be programmed months or even years in advance, taking into account public holidays and other closures. Also when exceptionally the lighting has to stay on longer, this can be adjusted in advance. Outdoor lighting and lighting in the showroom are controlled separately. Lights are on but dimmed at night to prevent the building being in complete darkness.


• Offices and small conference rooms:  when lighting is in ON mode, motion detection is activated. If no motion is detected for 15 minutes, lighting is dimmed to 30% of illuminance. After another five minutes, the luminaires are switched off. 


• Offices with windows:  same as other offices. In addition, the lighting is automatically dimmed to 500 lux on the work surface by means of daylight sensors.


• Corridors:  when lighting is in ON mode, motion detection is activated. If no motion is detected for 10 minutes, lighting is dimmed to 20%. The lighting is never completely switched off in the corridors for comfort reasons.


• Large conference room:  when lighting is in ON mode, three scenarios are possible: a) lighting switched on 100%; b) all luminaires 50% dimmed; c) only downlights are switched on.


• The lighting can also always be manually switched on or off by means of the switches.





Light control 

- 2 Excellum2 controllers
- multi-sensors for presence detection and daylight-dependent control
- DALI push-buttons and switches for manual light control


- US softlights with LEDs in offices and conference rooms
- D3-downlights with LEDs in corridors
- R8 diffuser luminaires in reception area


Emergency lighting 
- K1 and K9 escape route and anti-panic lighting
- K7 signage