In the micro 430 vsd manual it states that high voltage insulation resistance testers should not be used when connected to the vsd.

What is classed as high voltage? 1000v+?

What damage could occur to the vsd and why?

Are there any other issues? I.e false resistance readings?

Thanks

Dan

...sent from App

Hello danny;

Most of your questions are anwered in the following discussion, from the Engineering360 forum:

http://cr4.globalspec.com/thread/104901/Megger-Test-On-Motors-With-VFD-or-Softstarter-Connected

Hope this helps,

Daniel Chartier