Dear Friends
I have question about KUKA grounding system:
Normally we 2 earth system:
Electrical Earth and Clean Earth (that is used for instrument component that is safe grounding and has another well earth).
Normally that is separated with electrical well earth!!!!
Other question: in Kuka procedures these 2 well earth should be connected to each other or not?
For this case what is right cable cross section (cable size) for these 2 grounding system. (PE1,PE2)
In this photo which is clean earth (attached file)?
In my idea PE1 is clean earth ,is this right ?
Thanks