Lenze, insulation issue

zova

Member
zova
Join Date
Jan 2006
Location
Russia, Komi
Posts
118
I has several Lenze 8200 motec inverters coupling with E82ZAFPC Profibus adapters. Adapder has voltage insulation 270 V Profibus from power stage. It's true. But when I plug it into inverter insulation disappear. I.e. Profibus GND and mains PE electrically connected! All inverters and adapters are in operating or absolute new. What a hell!?

Planned installation all of them along production line, so how it should be wired?

or

How to retrieve insulation?

Many thanx in advance for any suggestion.
 

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