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I design many small panels that use 24 VDC as the primary control voltage. The incoming line is usually 230VAC, 3 phase. I have typically used a small control transformer to power the PC and the motion controller. Both components have built-in switching power supplies and can run on 115VAC or 230VAC. I would like to eliminate the transformer to save space and reduce the weight of the panel.
I am wondering if I can leave out the transformer and run the PC and the motion controller directly from the 230VAC line? I suspect that switching
supplies do not isolate the ground from the line. Is this a problem?
I am also planning to start using DIN rail mounted switching power supplies for my 24VDC supply. Will this cause any isolation problems? I have always used linear supplies with a built in transformer, but they are large and heavy also.
Thanks,
Bill Sturm
I am wondering if I can leave out the transformer and run the PC and the motion controller directly from the 230VAC line? I suspect that switching
supplies do not isolate the ground from the line. Is this a problem?
I am also planning to start using DIN rail mounted switching power supplies for my 24VDC supply. Will this cause any isolation problems? I have always used linear supplies with a built in transformer, but they are large and heavy also.
Thanks,
Bill Sturm