User Manual

5-13
Siemens Switzerland Ltd www.siemens.com/gamma 2019
Building Technologies Division
Lighting
Overview
Light level controls
Presence- and daylightdependent control
Channel 1: Lighting
Channel 2: Sun protection
Channel 3: HVAC
The presence detector with integrated brightness control regulates
up to three independent output channels for various functions in the
room, such as lighting, sun protection and HVAC systems. The auto-
mation serves to optimally adjust the room temperature and bright-
ness to the room’s actual use on a presence-dependent basis. That
means optimum comfort and always a pleasant room climate, yet with
low energy consumption.
At the start and end of every movement, each output channel indivi
dually actuates the respective functions. The follow-up times and
brightness thresholds can be set independently of each other.
Brightness sensors
Mounting guidelines for brightness sensors
• Make sure that the brightness sensor measures only indirect, reflec-
ted light; direct sunlight distorts the measurement results
• Avoid shiny surfaces that are highly reflective, as this interferes with
measurement
• Avoid surfaces that are too dark with low light reflection properties,
as this impedes measurement of the current brightness level
• Keep in mind that thermal protection glass can influence the daylight
measurement; the tripping value will be lower
Motion and presence detectors
Mounting guidelines for motion and presence detectors in a room
• Do not expose motion detectors to direct sunlight
• Do not mount any lamps within the detection zone
• Avoid placing any sources of rapid temperature changes within
the detection zone, e.g. air vents, fan heaters or incandescent and
halogen lamps
• Ensure that the direction of air flows moves laterally to the detection
zone
• Detection depends on the temperature difference between the sur-
rounding ambient zone and the object to be detected
• The detection zone of a presence detector should not be impeded or
blocked by shelves, plants or glass walls
• Minimum distance of 50 cm from cables and radiators
Mounting guidelines for motion detectors on a building
• Do not mount motion detectors on moving supports, such as poles
• In outdoor applications, mount presence detectors on stable walls
• The detection range of a presence detector should be free of inter-
ferences
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