UP 255D21 - Brightness Sensor with constant light level controller

Presence / Motion detector

• The detector senses the presence of a person or that there is no longer anyone in its detection area.
• The detector signal can be analyzed via two separate communication channels, termed motion detector and presence detector.
• The detection range is identical for all channels. Each channel can be locked individually via objects.

HVAC detector

• The detector has an additional control output for HVAC applications.
• For example, this function can switch systems that are used for heating, ventilating and climate control (HVAC) of the room from “Energy saving mode” in an unused room to “Comfort mode” in an occupied room and back to “Energy saving mode”, when the room is again unoccupied.
• Functionality of the Presence detector / Motion detector / HVAC-detector
• For each detector channel 4 communication objects are available, in sum 12 different communication objects. 
• It is possible to send one or two KNX telegrams at the beginning and at the end of a detected presence, according to configuration. 
• The values of the communication objects are configured for each functional block (motion detector, presence detector, HVAC-detector) via corresponding parameters.