24VDC Power supply units - 0Volt earthing
24VDC Power supply units - 0Volt earthing
(OP)
Is it recommended to connect all zero volt lines from separate 24VDC power supplies to earth, thus ensuring all zero volt lines are at the same potential?
And what if there is only one source of 24VDC power in the electrical panel, should the 0 volt line be connected to earth?
Thanks
And what if there is only one source of 24VDC power in the electrical panel, should the 0 volt line be connected to earth?
Thanks





RE: 24VDC Power supply units - 0Volt earthing
Can you provide some more detail on your system?
RE: 24VDC Power supply units - 0Volt earthing
This is not a battery operation. Do you think I should connect my 0V line to earth? What if I also had a 5VDC power supply (would I connect both OV lines to earth?)
You mention positive and negative grounding, in which cases would you use each method?
Thanks for your initial reply
RE: 24VDC Power supply units - 0Volt earthing
Your question can not be answered without knowing more details about your system and power supply.
I have not heard of negative grounding being used for quite some time although I am sure there may be cases where this might help for whatever reason. Negative grounding is like tying your positive of your 12VDC battery in an auto to the chassis and the negative to the equipment that needs power. Of course, this would not be a good idea for supplies that are not isolated (fuse blowing or breaker tripping along with some sparks).
RE: 24VDC Power supply units - 0Volt earthing
RE: 24VDC Power supply units - 0Volt earthing
The reason why was discussed in Thread238-48040 .