The Difference Between Frequency-Controlled Drives and Frequency Converters
There is often confusion between frequency-controlled drives and frequency converters. This is not surprising, as not every specialist can clearly distinguish these two types of devices, and it may be even more difficult for consumers. In this article, we will discuss the difference between them and why frequency converters are better than hydraulic couplings.
What Are Frequency Converters and Frequency-Controlled Drives?
Frequency converters are designed to provide smooth starting of electric motors and control the frequency of their rotation. At the same time, a frequency-controlled drive (FCD) is a combination of a frequency converter and an electric motor in one device. FCDs are often used in pumps, machines, and other mechanisms. The cost of an FCD is naturally significantly higher than the cost of a separate frequency converter.
Cost and Functionality
In the interest of competitiveness, manufacturers strive to make their products more accessible to consumers. However, quality must remain high; otherwise, the product will not be in demand. To maintain a balance in pricing, manufacturers typically include only the essential functionality in models, offering advanced features as options. Therefore, it's important to carefully review the implemented features of the device before purchasing.
Advantages of Frequency Converters Over Hydraulic Drives
The advantages of frequency converters over hydraulic drives are significant. First, the efficiency coefficient of a frequency converter is higher than that of a hydraulic coupling. Much also depends on the characteristics of specific devices and manufacturers.
Choosing the Optimal Device
When choosing between a frequency converter, hydraulic drive, or FCD, it is important to consider the specifics of the application. In different situations, all three options may be optimal. Therefore, before purchasing, it is essential to thoroughly analyze the needs and requirements for the device.