SOLUTIONS 13 - Moeller Electric Parts

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12 system, the XC100-FC modular PLC also controls wind park synchronisation, communicates with the brightness sensor and the visibility meter. Visibility at hub height is a parameter used for controlling daytime lighting. This is a cyclical white strobe light with an intensity of 20 000 cd. In order to reduce any disturbing effects in the vicinity of the wind park, the intensity of the daytime lighting must be reduced to a rated light intensity of 30 percent when the measured visibility in the wind park is over five kilometres and 10 percent with a visibility of over 10 kilometres. The distance in a wind park between a wind turbine with a visibility meter and turbines without a visibility meter must not exceed 1500 metres. The most unfavourable value of all meters must be used for the entire wind park. If one of the meters or the management system fails, the beacons must be switch to 100% output. All visibility measurements are evaluated to form a mean value every ten minutes. XC100-FC provides detailed warning and fault indications for this. A central beacon management system must carry out essential tasks in accordance with the General Regulations for the Lighting of Obstacles to Aircraft September 2, 2004: It should thus synchronise the flash sequence in a wind park, and if necessary, manage the measurement of visibility and ambient brightness in order to control the beacons, as well as document the parameter-based control. Modular PLC with fibre optic fieldbus interface XC-CPU101-FC is the name of the powerful modular PLC with the CANopen fibre optic fieldbus interface from the Moeller XC100 range of programmable controllers. This ensures highly noise-free data transfer – even in environments susceptible to excessive electromagnetic interference. As an alternative to the serial programming interface, the XC100 can also be programmed via the CANopen fieldbus, thus opening up the possibility of use in decentralised systems. The entire installation can thus be operated and programmed centrally as well as from a distance. Other features include an integrated real-time clock as well as a slot for a Multi- Media Memory Card (MMC with standard file system). MMC allows operating system, application program or even recipe data to be updated. The PLC comes with eight digital inputs and six short-circuit-proof outputs. Four inputs are designed as interrupt inputs, thus enabling a simple and direct response to events, irrespective of the cycle time. The modular PLC can be expanded locally with up to 15 XIOC signal modules. A wide range of digital, analog or communication modules are available for use. The high density XIOC I/O modules enable users to connect up to 32 I/O points. The XC100-FC has an outstandingly compact design with a 30 millimetre mounting width and 100 millimetre height. All I/O signals are wired using pre-assembled cables thus saving valuable time. With the XC100/200 controllers, users can create a maximum expansion with up to 494 digital signals – with a mounting width of only 510 millimetres. CONCLUSION Enercon has been a Moeller customer for years and appreciates the quality of its products, service and reliability. Enercon has therefore been using Moeller components, such as contactors and control circuit devices, for a long time. The automation solution in the wind turbines consists of several components networked together via fibre optic cables to ensure noise-immune data transfer. The XC100 with the fibre optic CANopen interface fitted into Enercon's automation concept perfectly. The fieldbus network also enables data transfer to higher-order systems as well as central programming. The flexible XIOC signal modules also ensure optimum adaptions to the task at hand. MS1310 For Moeller Electric Sales and Support call KMparts.com (866) 595-9616
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SOLUTIONS 13 - Moeller Electric Parts

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