5/6/2013 5:05 PM
We've lost two out of three vfd's in the past two years to lightning strikes or "stray voltage". Both have been returned to ABB for analysis and supporting paperwork returned. Sucks to have to replace drives because of this but that's what insurance is for. I'm hopeful that ABB will develop some sort of "protection device" but then again, why not sell another drive?
We're fortunate to have a "drive expert" on call and can have us up and running in 24 hours.