Over the past few days I have received a lot of questions about drive or VFD (Variable Frequency Drive) control using a PLC, especially in my Facebook group. It can be very difficult to answer complex questions on Facebook, especially …
Today’s topic is in response to Saravanan who posted a request last week on my “Panel Layout and Electrical Design” post of about a year ago. He asked “Thanks for the post. I want to learn about designing control circuits …
From the Primer: A variable-frequency drive (VFD) is a device for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor. Variable frequency drive controllers are solid …
