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TECORP Electronics
HC1-A User Manual
●Use the control terminals correctly according to your needs.
5.4.3 Grounding
●Grounding terminal:E
220V class: The third grounding method. (grounding resistance should
be 100 ohm or lower.)
380V class: Special grounding method. (earth resistance should be 10
ohm or lower.)
●Choose grounding wires according to the requirements of the electric
equipment.
●Avoid sharing grounding wire with other large power equipment. The
grounding wire should be kept away from the power supply wires.
●The grounding method for several inverters together should be done
as the first and second diagrams. Avoid the third diagram.
●The shorter grounding wire is the better it is.
（1）Correct
（2）Correct
（3）Wrong
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