New Decentralised Motor Control System from Eaton
Ideally suited for use in distributed control applications on conveyors, materials handling systems, and all installations that can benefit from a decentralised motor control system, the latest Rapid Link 4.0 motor control units from Eaton’s Electrical Sector combine versatility, ease of installation, convenient plug-able connections, space-saving compact construction and an exceptional IP65 rating that allows them to be used in the toughest of environments.
The Rapid Link 4.0 range includes direct-on-line and reversing motor starters with electronic motor protection for 0.3-3kW and variable speed drives with four ratings up to 2.2kW. All models in the range have the same fixing arrangements and dimensions, which greatly simplifies both plant design and equipment installation. In addition, the standardised design means that fitting a variable speed drive unit in place of a direct-on-line starter – or vice-versa – is a straightforward task, allowing changes in user requirements to be accommodated readily and inexpensively.
The compact square housings used by Rapid Link 4.0 allows power and motor cables to enter from either side or from the bottom, and the unit to be rotated on the same fixing holes which means that the units can always be mounted in the most convenient position and orientation.
All units in the range have the option of a lockable switch disconnector, giving fast and safe isolation from the electrical power source. A further option, available for variable speed drive models, is an integrated brake chopper which eliminates the need for the installation of additional modules should breaking of the motor be required.
Motor starter units in the Rapid Link 4.0 range incorporate electronic control, enabling them to achieve an exceptional life of 10 million operating cycles at 3kW. The units are suitable for duty cycles of up to 3,000 starts per hour, and can be used at temperatures up to 55ºC without de-rating.
The variable speed drive units in the range are available with ratings of 0.75, 1.1, 1.5 and 2.2kW, and all models can be set by the user to operate in either Voltage Frequency control or Speed Control mode. The units incorporate a quick-stop function and with its onboard intelligence it can be programmed with cyclical sequences, reducing the processing needed by the PLC.
Rapid Link 4.0 motor control units from Eaton’s Electrical Sector incorporate the latest AS-I 3.0 protocol, which provides a wide range of communication options between the PLC and the units. In addition to standard control functions, these options include transmission of diagnostic information such as motor current as well the transfer of operating parameters and set frequencies.
Eaton’s electrical business is a global leader in power distribution, power quality, control and automation, and monitoring products and services. Eaton’s global electrical product series, including Cutler-Hammer®, Moeller®, Powerware®, Holec®, MEM®, and Santak® provide customer-driven PowerChain™ solutions to serve the power system needs of the data centre, industrial, institutional, public sector, utility, commercial, residential, IT, mission critical, alternative energy and OEM markets worldwide.
Eaton Corporation is a diversified power management company with 2010 sales of $13.7 billion. Celebrating its 100th anniversary in 2011, Eaton is a global technology leader in electrical components and systems for power quality, distribution and control; hydraulics components, systems and services for industrial and mobile equipment; aerospace fuel, hydraulics and pneumatic systems for commercial and military use; and truck and automotive drivetrain and powertrain systems for performance, fuel economy and safety. Eaton has approximately 70,000 employees and sells products to customers in more than 150 countries. For more information, visit www.eaton.com.
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