What is the difference between soft starter and VFD soft starter? Today we briefly explain a topic that may sometimes confuse: What is the difference between soft starter and VFD soft starter in motor starting applications? Direct on-line motor start Across the line or direct on-line (DOL) motor start is Read more…
Finding an optimum field weakening point Motors supplied from variable frequency drives (VFD) have the freedom to set the field weakening point almost arbitrarily. By doing that you can optimize the drive system. The message of this article is how to find an optimum field weakening point. Let’s start with Read more…
Scalar control – What does it actually mean? Many times we see that the term ‘scalar control’ is used in incorrect way or being misinterpreted. In this article we will briefly discuss scalar control – what does it actually mean? How does it differ from a field oriented control? What Read more…