With the provision of green building automation solutions now included in its focus, industrial automation supplier and service provider Shorrock Auto- mation is concentrating on supplying products to either retrofit older buildings to improve their energy efficiency or provide solutions to new buildings.
Shorrock intends to use its premises, in Pretoria, as a case study to provide clients with statistics detailing energy consumption before and after installing sensors, such as the EBDSPIR-PRM ceiling-mounted presence detector, from UK-based energy-savings control manufacturer CP Electronics.
“The detector range offers many additional features not found on a standard detector, including presence and absence detection, daylight harvesting and digitally addressable lighting interface (Dali), based on either passive infrared (PIR) or microwave detection,” says Shorrock Automation MD Chris Huxham.
The system is easily installed and commissioned and significantly reduces installation time and costs. The EBDSPIR-PRM is ideal for lighting applications at schools, offices, hotels, as well as the retail and commercial property sectors.
Shorrock secured sole representation of CP Electronics’ products in Southern Africa late last year and expects about 90% of the CP Electronics business to be generated from motion sensor sales.
“CP Electronics is an international market leader and this product has received positive feedback from the South African market,” explains Huxham.
Meanwhile, a product suited to new building installations is CP Electronics’ green-i range of intelligent energy-saving controls.
The aesthetically pleasing wall switch, which can include PIR motion sensors, has the ability to save energy by automatically switching off the lights and remotely control operations and scene selection. It also offers various easily configurable features to give users real control over their lighting.
“The product can also be used to replace existing switches and is available in single- and dual-gang configurations in two styles, with a choice of colours and finishes. It can be supplied with a combined PIR sensor, or as a standard remote control dimmer,” says Huxham.
He also notes that, when a room is vacated, the occupancy detector will switch off lighting after a time determined by the user – with a maximum of 30 minutes. Switching back on can be automatic, when occupancy is detected or manually – the latter being best for bedrooms so that nocturnal movement does not switch on lighting. The illuminated central dial ensures the switch is easy to locate in the dark.
Soft off and soft on settings ensure gradual raising and lowering of light levels and the latter has a special feature for low light levels. When the level of light is increased slowly, the eyes are given enough time to adjust. There is also a security mode that switches on lighting for two, four or six hours after dusk, as well as a night light setting.
Dual-gang versions offer independent control of two circuits for dimming and automated controls, as well as preset options.
Green-i has been designed to be easily installed, with each pack containing a switch with standard white fascia, two additional fascias and a remote controller. An extension pattress is also available for shallow connection boxes.
“Green-i is suitable for use with tungsten halogen and general lighting service lamps and is fully compatible with two-way wiring. The range also includes time-lag switches, which can be used with conventional fluorescent lighting,” adds Huxham.
Windows 7 Compatible
Shorrock will also introduce a Windows 7- compatible version of the PS3710A industrial personal computer from operator interface product supplier Pro-face, this month.
The 375 mm light-duty industrial computer brings enhanced reliability, durability and flexibility to any production floor and can also be used for building automation.
“Along with its clear, easy-to-read industrial display, the PS3710A system offers the powerful Intel Pentium M 1,6 GHz processor, which significantly lowers heat generation. Lower heat output prolongs the life of sensitive components, such as the hard drive, and adds to the overall reliability of this industrial computer system,” he explains.
An aluminium housing adds to the PS3710A’s durability, offering a case that is less likely to be damaged by traditional factory wear and tear.
The remote access server and multiple input/output (I/O) ports, compatible for video, audio, universal serial bus and Ethernet connections, give the product flexibility in use.
Other features include a choice between 1 G or 512 MB of random access memory, and a choice of preloaded operating systems.
Wago Product Range
Other building automation solutions supplied by Shorrock include Winsta, a connection system for building installations, produced by Germany-based electrical and automation components manufacturer Wago.
The modular wiring system has been used for large installations, including authorised financial services and credit provider First National Bank’s building on Beyers Naudé drive, which comprised 9 500 connectors; commercial and domestic bank Nedbank’s head office, in Sandton, which is the first green star-rated building in South Africa; as well as the upgraded Nelson Mandela Metropolitan University library, in Port Elizabeth.
Wago also offers intelligent solutions for designers, managers and installers with its I/O system for building automation appli- cations.
“The company’s specialist protocols for building automation include Lonworks, one of the most powerful bus systems, which has already been proven in many building projects; KNX, which simplifies electrical installa- tion; BACnet and Ethernet at network level; and the standard industrial fieldbus protocols, which can also be used depending on the application,” says Huxham.
Wago also has a range of gateway modules for EnOcean, Dali and KNX. This technology enables EnOcean sensors and the Wago I/O system radio receiver module to interface without the hindrance of cables and batteries.
Huxham explains that the sensors obtain their energy by converting solar, heat and kinetic energy to electrical energy. The radio receiver module can be used with any controller of the Wago I/O system.
Further, the Dali master module from Wago can be used for controlling up to 64 electronic ballast units, in accordance with the Dali standard in building management, to easily create lighting scenes and configurations.
The use of Dali enables lighting systems to be easily parameterised and controlled, and a large amount of additional information can be transmitted using controllers for fieldbuses, such as Ethernet and Lonworks.
Wago has also developed a variety of KNX products, which offer improved performance and versatility for intelligent building control. Included in the range are the modular KNX/Internet protocol (IP) controller and KNX/tracks per inch bus module which, combined, offer an integral KNX/IP router capability.
“In conjunction with modules from the Wago I/O system, any digital or analogue sensor and actuator can be integrated into the KNX network for lighting, heating, ventilation and air conditioning control,” concludes Huxham.