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Variable frequency drives (VFDs) have most commonly been used in water treatment plants, where they’re used to regulate water flow. But in recent years, they’ve grown in popularity throughout many areas of the industry. Integrating a VFD into your automation system can provide numerous benefits. These include process optimization, increased motor life, energy savings, and time savings. 1. Process ...
VFD design is driven by desire for more safety, energy management and communication options. Customer and market trends for VFDs Market trends driving variable frequency drive development and design. Of all the customer and market trends identified, safety, energy management and design flexibility are vital. Integrated safety is becoming the norm, rather than the exception, and it’s being used bey...
When choosing a variable frequency drive (VFD), six factors you should take into consideration to ensure that you specify the correct AC drive for your application. Full Load Amperage the first decision to make when choosing a VFD is making sure the drive can handle the motors current demands. Check the motor nameplate for the Full Load Current requirement, then find a drive that’s rated for at le...
Variable frequency drive (VFD) is the application of frequency conversion technology and microelectronics technology to control the electric drive components of AC motors by changing the frequency and amplitude of the working power supply of the motor. The frequency conversion technology was born under the wide demand of the stepless speed regulation of the AC motor due to the large volume, high f...
1. Reduce energy consumption and energy costs If your application does not require full speed operation, you can reduce energy costs by using a variable frequency drive to control the motor, which is one of the advantages of variable frequency drives. VFDs allow you to match the speed of motor-driven equipment to load requirements. No other AC motor control method will allow you to achieve this. 2...
When we are using VFDs, choosing the right VFD cable is often overlooked, this factor will ultimately affect the life of your motor. Think of the VFD cable now as your insurance policy for your variable speed motor. Protect your motor Variable speed motors are ubiquitous and play a pivotal role in all walks of life. Engineers and operators have invested in AC drive systems without realizing the im...
VFD in reserved storage Many applications using variable frequency drives (VFDs) are critical and cannot afford extended downtime. Many people choose to keep a spare VFD on the shelf so that it can be switched when needed. However, if you're not careful, the VFD may not work when you need it. Here are a few things to look out for to ensure your spare VFD is ready to be taken out of long-term stora...
Importance of Warranty When shopping for a low-voltage variable frequency drive (VFD), be sure to review the warranty for each option you consider. You may wish to never need a warranty, but when a defect occurs, warranties are good and they can help you repair or replace your device. Below are some of the biggest considerations and mistakes common to customers that lead to VFDs being rejected in ...
The environment in which the drive is stored should be kept cool, clean and dry. But what if you already have a VFD? When talking to one of our field engineers about a customer who has a VFD, I asked what was the biggest mistake made while maintaining this equipment? Based on all the advice he gave, I would like to remind you that only qualified personnel should work on electrical panels. Also, th...
The application of frequency converter in industrial production is very important. In addition to speed regulation and soft start, the most important thing is that it can save energy. At present, with the continuous improvement of industrial automation, frequency converters have also been widely used. Recently, many customers have inquired about the precautions when installing the inverter. The fo...
How to judge the fault of the Variable Frequency Drive? 1. The rectifier module is damaged Usually caused by grid voltage or internal short circuit. Replace the rectifier bridge after eliminating the internal short circuit. When dealing with faults on site, focus on checking the user grid conditions, such as grid voltage, whether there are electric welding machines and other equipment that pollute...
The variable frequency drive generally chooses a 4-level motor, the base frequency operating point is designed at 50Hz, the frequency is 0-50Hz (speed 0-1480r/min) The motor runs at constant torque, and the frequency is 50-100Hz (speed 1480-2800r/min). The motor runs at constant power within the range of min), and the entire speed regulation range is (0-2800r/min), which basically meets the requir...
Dolycon offers an extensive support system to help customers choose the best product. We care about your business and personal needs. Get in touch today.