Drive systems often operate in potentially explosive atmospheres. One example is the inflow area of a sewage treatment plant. If frequency converters are used for speed control of drives in such areas, the facility must fulfil special conditions. The basis for this is provided…
Matching individual components to a particular drive system has several advantages over pre-configured systems because this allows the engineer to optimise the system to his requirements. Pre-configured systems are always optimised for general applications and can never fit all. If…
When it comes to installing electric and electronic equipment – like frequency converters – proper grounding of the equipment and using shielded cables plays an important role in creating a safe and noise free working environment. Grounding means…
When the speed reference of a frequency converter is reduced, the motor that is controlled by the converter acts as a generator and brakes. When a motor acts as a generator, it supplies energy back to the frequency converter. This energy is…
The Fraunhofer Institute for System and Innovation Research (ISI) reports that electric motors and corresponding systems account for 40 per cent of worldwide electricity consumption and are responsible for 6 billion tonnes of global CO2 emissions, which corresponds to 20 per cent of total carbon dioxide…
Also if the use of shielded cable is not mandatory to comply with national and local regulations, it is still often recommended to use a shielded cable as supply or signal cable. But using a shielded cable…
