A crash course in VSD safety functions

Liam Blackshaw writes: Modern variable speed drives (VSDs) are packed full of safety features, but the sheer number of similar sounding functions, (not to mention similar sounding acronyms), can make it difficult to get a handle on what they all mean. I thought it might therefore be a good idea with this post to gather all of the common safety features typically found in the current generation of ABB drives and demystify them all in…