Legrand Light Up Stand Alone: Technical Specifications for Energy-Efficient Lighting Control
This document outlines the technical specifications for Legrand's Light Up Stand Alone lighting control solutions, designed to enhance energy efficiency and performance.
General Information
The installation and commissioning of lighting control systems will be carried out bureau by bureau, room by room, in several stages to adapt detector settings to real usage conditions. Special attention will be paid to sources that could interfere with system operation.
Motion and light detectors should not be placed in the direct path (within 1 meter) of heat or cold sources (radiators, air conditioners) that could cause false detections. They should also be positioned away from doorways to avoid detecting passage in corridors and not in the direct beam of a luminaire to ensure accurate light measurement.
Final light detector threshold settings will be adjusted based on office layout and user lighting needs. These adjustments are made using a smartphone with the Legrand Close-Up application. Training will be provided to building technical services for maintenance and future adaptation.
Detector Functions and Technologies
A detector automatically controls a light source by detecting movement within its surveillance zone. The Legrand Light Up Stand-Alone range utilizes Passive Infra-Red (PIR) technology. PIR sensors are pyroelectric sensors sensitive to temperature variations. They detect sudden changes in thermal energy emitted by the human body. Detectors require direct line of sight to occupants. The faceted optical design creates multiple vertical and horizontal detection cones. Detection sensitivity decreases with distance, and the signal received depends on temperature and surface area. Detection is challenging when the ambient temperature is close to body temperature. For optimal detection, the sensor should be positioned perpendicular to the user's path.
Detection Zones
Detectors can be characterized by three detection zones:
- Transverse (tangential) detection: When a person approaches the detector from the side.
- Axial (radial) detection: When a person approaches the detector head-on.
- Seated position detection: For detecting small movements when seated.
A diagram illustrates these detection zones, showing a 2.5m installation height with detection ranges of 6m axially, 12m transversally, and 5m for seated detection.
Configuration
Products are delivered with default factory settings. Fine-tuning of Legrand Light Up sensors is done via a smartphone using the Close Up application communicating via Bluetooth Low Energy. This allows for:
- Quick initialization of settings (luminosity threshold, delay, operating mode, sensitivity).
- Saving detector parameters to a shareable file.
- Comparing current parameters with initial settings.
Table of Solutions: ON/OFF Switching
Offices / Open Spaces / Meeting Rooms / Technical Areas
For areas up to 15 m² and over 15 m²:
An automatic detector, Legrand reference 048551 or equivalent, with 360° detection, PIR technology, and high-density lens, is installed in the false ceiling. This lens detects slight movements typical of seated work. The detector includes a luminosity measurement cell to account for natural light. It continuously monitors lighting, automatically switching off lights when natural light is sufficient and switching them on when insufficient.
Detection range for a 2.5m installation height is at least 6m diameter for axial movement, 12m for transverse movement, and 5m diameter for seated detection. Masking sheets are provided to reduce coverage if needed.
Operating Modes:
- Auto ON / Auto OFF: Lighting turns on and off automatically. Optional wired push-buttons (Legrand ref. 077040L or equivalent) can be added for manual control.
- Manual ON / Auto OFF: Requires associated wired push-buttons (Legrand ref. 077040L or equivalent). Users turn lights on, and the detector turns them off after a set delay.
- Wireless Control: Detectors can associate with wireless, battery-free controls (Legrand ref. 077053L or equivalent) for manual ON/OFF functionality.
For larger coverage areas, detectors can be paired wirelessly as master-slave to control lighting in the concerned space.
Corridors
An automatic detector, Legrand reference 048553 or equivalent, with double 180° detection via PIR technology, is installed in the false ceiling. This double detection covers a 2x12m zone for transverse movements. The detector includes a luminosity measurement cell for natural light. It continuously monitors lighting, automatically switching off lights when natural light is sufficient and switching them on when insufficient.
Operating Modes:
- Auto ON / Auto OFF: Lighting turns on and off automatically. Optional wired push-buttons (Legrand ref. 077040L or equivalent) can be added for manual control.
- Manual ON / Auto OFF: Requires associated wired push-buttons (Legrand ref. 077040L or equivalent). Users turn lights on, and the detector turns them off after a set delay.
- Wireless Control: Detectors can associate with wireless, battery-free controls (Legrand ref. 077053L or equivalent) for manual ON/OFF functionality.
For larger coverage areas, detectors can be paired wirelessly as master-slave to control lighting in the concerned space.
Table of Solutions: DALI 1 Zone Dimming
Offices / Open Spaces / Meeting Rooms / Technical Areas
For areas up to 15 m² and over 15 m²:
An automatic detector, Legrand reference 048552 or equivalent, with 360° detection, PIR technology, and high-density lens, is installed in the false ceiling. This lens detects slight movements typical of seated work. The detector includes a luminosity measurement cell for natural light. It continuously monitors lighting, automatically switching off lights when natural light is sufficient and switching them on when insufficient.
Detection range for a 2.5m installation height is at least 6m diameter for axial movement, 12m for transverse movement, and 5m diameter for seated detection. Masking sheets are provided to reduce coverage if needed.
Operating Modes:
- Auto ON / Auto OFF: Lighting turns on and off automatically. Optional wired push-buttons (Legrand ref. 077040L or equivalent) can be added for manual control.
- Manual ON / Auto OFF: Requires associated wired push-buttons (Legrand ref. 077040L or equivalent). Users turn lights on, and the detector turns them off after a set delay.
- Wireless Control: Detectors can associate with wireless, battery-free controls (Legrand ref. 077053L or equivalent) for manual ON/OFF functionality.
For larger coverage areas, detectors can be paired wirelessly as master-slave to control lighting in the concerned space.
Corridors
An automatic detector, Legrand reference 048554 or equivalent, with double 180° detection via PIR technology, is installed in the false ceiling. This double detection covers a 2x12m zone for transverse movements. The detector includes a luminosity measurement cell for natural light. It continuously monitors lighting, automatically switching off lights when natural light is sufficient and switching them on when insufficient.
Operating Modes:
- Auto ON / Auto OFF: Lighting turns on and off automatically. Optional wired push-buttons (Legrand ref. 077040L or equivalent) can be added for manual control.
- Manual ON / Auto OFF: Requires associated wired push-buttons (Legrand ref. 077040L or equivalent). Users turn lights on, and the detector turns them off after a set delay.
- Wireless Control: Detectors can associate with wireless, battery-free controls (Legrand ref. 077053L or equivalent) for manual ON/OFF functionality.
For larger coverage areas, detectors can be paired wirelessly as master-slave to control lighting in the concerned space.
Table of Solutions: DALI 3 Zones Dimming
Offices / Open Spaces / Meeting Rooms / Technical Areas
For areas up to 15 m² and over 15 m²:
An automatic detector, Legrand reference 048555 or equivalent, with 360° detection, PIR technology, and high-density lens, is installed in the false ceiling. This lens detects slight movements typical of seated work. The detector includes a luminosity measurement cell for natural light. It continuously monitors lighting, automatically switching off lights when natural light is sufficient and switching them on when insufficient.
Detection range for a 2.5m installation height is at least 6m diameter for axial movement, 12m for transverse movement, and 5m diameter for seated detection. Masking sheets are provided to reduce coverage if needed.
Operating Modes:
- Auto ON / Auto OFF: Lighting turns on and off automatically. Optional wired push-buttons (Legrand ref. 077040L or equivalent) can be added for manual control.
- Manual ON / Auto OFF: Requires associated wired push-buttons (Legrand ref. 077040L or equivalent). Users turn lights on, and the detector turns them off after a set delay.
- Wireless Control: Detectors can associate with wireless, battery-free controls (Legrand ref. 077053L or equivalent) for manual ON/OFF functionality.
For larger coverage areas, detectors can be paired wirelessly as master-slave to control lighting in the concerned space.
Corridors
An automatic detector, Legrand reference 048556 or equivalent, with double 180° detection via PIR technology, is installed in the false ceiling. This double detection covers a 2x12m zone for transverse movements. The detector includes a luminosity measurement cell for natural light. It continuously monitors lighting, automatically switching off lights when natural light is sufficient and switching them on when insufficient.
Operating Modes:
- Auto ON / Auto OFF: Lighting turns on and off automatically. Optional wired push-buttons (Legrand ref. 077040L or equivalent) can be added for manual control.
- Manual ON / Auto OFF: Requires associated wired push-buttons (Legrand ref. 077040L or equivalent). Users turn lights on, and the detector turns them off after a set delay.
- Wireless Control: Detectors can associate with wireless, battery-free controls (Legrand ref. 077053L or equivalent) for manual ON/OFF functionality.
For larger coverage areas, detectors can be paired wirelessly as master-slave to control lighting in the concerned space.
