Advanced Lighting Control Hardware
Greenbus II™ Communications
The Encelium GreenBus II™ bus system is a communication technology designed specifically for controlling lighting to achieve maximum energy savings and optimum lighting comfort.
GreenBus II enables cost effective, individual dimming control of thousands of fixtures in a building and integrates peripheral devices such as occupancy sensors, photo sensors, relay-based controls, switch packs and low voltage wall controls into a complete, programmable lighting control system. Each GreenBus II channel originates at an Energy Control Unit (ECU) and typically propagates in a daisy-chain fashion from device to device, although it is topology free and “T” connections are acceptable.
GreenBus II is a Class 2 network, which provides low voltage power to all devices on the network eliminating the need for external power supplies and power packs for devices such as occupancy sensors. When necessary, GreenBus II channels can be interfaced to an NEC Class 1, DALI bus via the use of the Encelium DALI Bridge.
GreenBus II allows flexible daisy chain wiring topologies and the ability to add fixtures or control devices in-circuit at any time. Different devices may be connected randomly on the network and special termination of each network channel is not required. Automatic addressing of individual nodes during system commissioning simplifies installation by eliminating the need to pre-address devices or record serial numbers during the process.
Energy Control Unit (ECU)
The ECU is a rack or wall mounted control device that collects, processes, and distributes lighting control information to Encelium control modules, wall controllers, and other devices over Encelium’s Greenbus II network. Each ECU features 8 GreenBus II communication channels and typically controls 100 nodes per channel (8 X 100 = 800 nodes in total).
The ECU is the central intelligence point in the system. It collects signal information from photo sensors (light levels), occupancy sensors (occupancy status) and wall mounted lighting controllers. It then determines appropriate brightness levels or on/off status for each fixture and zone. Photo sensors do not directly control light levels but rather are connected to the GreenBus II network and provide light level information to the ECU. The ECU then determines what action to take based on the status signals from the sensors.
Each ECU has two Ethernet connections. One connection is for communication with other ECUs and the SSU on the Encelium Network. The second ethernet connection can be used for communication with a facility’s or tenant Local Area Network (LAN) to allow secure communication to the Encelium equipment for access to the Encelium Polaris 3D™ or Personal Control Software applications.
Luminaire Control Module (LCM)
The Encelium Luminaire Control Module or LCM provides an interface between ballasts and the Encelium Greenbus II communication network. The LCM is automatically addressed as soon as it is connected to an Energy Control Unit (ECU). Individually addressable, the LCM enables each ballast to be independently controlled and configured to best meet the needs of the facility.
The LCM switches a fixture ON or OFF via a relay contained in the module as well as delivers a low voltage dimming signal to any conventional 0-10V dimming ballast. The LCM is also able to control LED fixtures and dim 0-10V LED drivers. LCMs can also be connected to power relays or switch packs in order to switch larger electrical loads.
Sensor Interface Module (SIM)
The Encelium Sensor Interface Module or SIM provides an interface between sensors such as occupancy and photo sensors to the Encelium Greenbus II™ communication network. The SIM is automatically addressed as soon as it is connected to an Energy Control Unit (ECU).
The SIM automatically detects and adjusts itself to the type of sensor it is wired to (i.e. photo sensor or occupancy sensor) and establishes two-way communication between the Energy Control Unit (ECU) and itself. Individually addressable, the SIM enables each sensor to be independently configured to best meet the needs of the facility.
Accessory Control Module (ACM)
The Encelium Accessory Control Module or ACM provides an interface between analog dimming devices (e.g. incandescent dimming module) and the Encelium Greenbus II communication network.
The ACM is automatically addressed as soon as it is connected to an Energy Control Unit (ECU). Individually addressable, the ACM enables each analog dimming device to be independently controlled and configured to best meet the needs of the facility.
System Support Unit (SSU)
The System Support Unit serves as the database server for all data related to an Encelium EMS system. The SSU stores all system settings and parameters, including attributes for zones, fixtures, sensors, zone controllers and scene controllers. Additionally, it maintains multiple set-points, including those for light levels, time schedules, occupancy sensor timeouts and demand response or load shedding features. The SSU also logs historical data regarding the system’s operational and energy savings results.
The SSU provides the ability to remotely access a system in order to change system settings or configuration, analyze system performance or energy data or troubleshoot thereby providing quick and seamless customer support. The SSU also hosts the web interface required for the web enabled Personal Control Software. In addition, optional building automation system interfaces such as BACnet, A/V Interface, and Niagara AX are available upon request.
Each Encelium system requires one SSU, typically located in a building’s electrical room, mounted with an ECU.
Three-Zone Controller (ZC3)
This is a software configurable lighting controller that provides ON/OFF switching for up to three lighting zones. It is generally located at entry points to a floor or department and is used to “activate” or “de-activate” a lighting zone. The zone status is indicated by an LED display with white indicating ON and blue indicating OFF.
Three-Scene Dimming Controller Wall Station (SC3D)
This is a three scene, single zone dimming lighting controller that provides customized light level control in areas such as boardrooms, conference rooms, private offices and other areas requiring architectural dimming. The SC3D enables manual dimming of light levels or the recall of customized lighting “scenes” by the push of a button. Scene configuration can be changed via Encelium’s Polaris 3D™ Software.
Rocker Switch Wall Station
The Rocker Switch is a versatile, low voltage lighting controller that provides local ON/OFF and dimming control over lighting zones. Meeting NEMA WDI color specification standards, it connects to the Encelium Energy Management System through GreenBus II cable with a 2-pin quick connector. Each Rocker controller is addressed and configured through Encelium’s Polaris 3D software interface.
The Rocker Switch is a single zone lighting controller ideal for small conference rooms, private offices and other spaces where multi-zone control is not required. A short press of the upper/lower buttons turns lighting on/off, while a “press and hold” dims lighting up or down. The zone status is indicated by an LED with white indicating on and blue indicating off.
Industrial Push Button Wall Station
The Industrial Push Button is a single zone wall mounted controller that provides local ON/OFF control over a lighting zone. Utilizing a standard single-gang form factor in a rugged stainless steel housing, the Industrial Push Button is a low voltage controller that connects to the Encelium EMS system through GreenBus II cable with standard 2-pin connectors. Each Industrial Push Button can be set-up and modified through Encelium’s Polaris 3D software interface.
The Industrial Push Button is generally located at entry points to a zone or department and is used to “activate” or “de-activate” a lighting zone. The zone status is indicated by an LED display with white indicating ON and blue indicating OFF.
Key Switch Wall Station
The Key Switch is a single zone wall mounted controller that provides local ON/OFF control over a lighting zone. Utilizing a standard single-gang form factor in a rugged stainless steel housing, the Key Switch is a low voltage controller that connects to the Encelium EMS system through GreenBus II cable with 2-pin connectors. Each Key Switch can be set-up and modified through Encelium’s Polaris 3D software interface.
The Key Switch is generally located at entry points to a zone or department and is used to “activate” or “de-activate” a lighting zone.
Each ECU features eight low voltage, Class II, GreenBus II channels which can be interfaced to a (Class I) DALI bus via the use of the Encelium DALI Bridge. One or more DALI Bridges are permitted per ECU channel with a combined maximum of 64 DALI ballasts per channel. Each ECU can therefore control up to 512 DALI ballasts. Each DALI bus requires one external power supply (supplied by Encelium).