Hi! On a IRC5 Controller I had an error on BUS Communication with the devicenet. The 24Vdc supply to the node was interrupted. The FUSE on DSQC 332A was blown (between wires 295-296). I disconnected all the perifery and I recover the bus supply. The BUS start to communicate again. Surprising after that I found that the POWER UNIT DSQC 627 was badly damaged. How is it possible? In wich way the bus supply is related to the Power Unit? And how that is capable to broke the supply. The guy at ABB support didn't help me a lot... Aby ideas? I can't try with a new DSQC Unit running the risk to damage it again.