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Variable Frequency Drives
Courtesy of CC Link Partner Association
vfd_article_image
Variable Frequency Drives
The critical role of modern variable frequency drives in industrial applications
This article explores why VFDs are a cornerstone of modern engineering and how they deliver value in diverse settings.
April 21, 2025
Courtesy of AutomationDirect
Figure 1: Even general-purpose VFDs, like the Automation Direct DURApulse GS20 family, include advanced features like sensorless vector control and torque control modes. More capable models, like the WEG CFW500, include these capabilities, and add other features, like encoder support and flux vector control mode which allows 100% torque at zero speed.
Variable Frequency Drives
Torque control: The other VFD operating mode
May 1, 2023
Courtesy of Pfannenberg USA
A demonstration of a closed-loop cooling system.
Variable Frequency Drives
How to protect VFDs from overheating
Dec. 15, 2022
Courtesy of Emerson
Many types of new and retrofit motorized machinery and processing equipment are using intelligent VFDs due to the performance and operating cost advantages. Redundancy at the field network and the controller is now economical and practical even for smaller applications.
Variable Frequency Drives
Improved VFD redundancy increases uptime
Aug. 15, 2022
Courtesy of Mitsubishi Electric
Fr A800
Variable Frequency Drives
VFDs: Running to failure
July 15, 2022
Courtesy of AutomationDirect
Figure 1: Washdown-rated compact VFDs offered by AutomationDirect can provide all the necessary logic, process and motor control for an application, and many times eliminate the need for a separate control enclosure or electrical panel.
Variable Frequency Drives
Reducing complexity and cost with NEMA 4X VFDs
May 16, 2022
Courtesy of Motion
While hazardous environments pose challenges to the use of VFD-controlled inverter duty motors, they can be surmounted through careful planning, product selection and installation. The efficiency, productivity and other benefits of these VFD systems will create substantial opportunities for applications in these environments.
Variable Frequency Drives
5 things to consider when installing variable frequency drives in hazardous locations
Dec. 14, 2021
Figure 2: (Opposite) AutomationDirect VFDs include V/Hz control mode standard, which is good for many applications such as centrifugal pumps, fans and material conveyors. Images courtesy of AutomationDirect
Variable Frequency Drives
Choosing VFD control modes
June 29, 2020
Figure 1: The small size and wide operating temperature range of some VFDs, like the models shown here from AutomationDirect, make it convenient to install them in almost any situation. All images courtesy of AutomationDirect
Variable Frequency Drives
Beyond process control with VFDs
May 26, 2020
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