HLP-NV Series
HLP-NV Series
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18
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(1) Good (2) Good (3) Not good
2) For control circuit wiring (signal line)
● The signal line should be separately laid in a different conduit with the
main circuit wire to avoid any possible interference.
● Please use the shielded cable with the size of 0.5-2mm2 for signal lines.
● Use the control terminals on the control panel correctly according to
your needs.
3) Grounding
● Grounding terminal E. Be sure to make correct grounding
220V class: The third grounding method (Grounding resistance should
be 100Ω or lower.)
380V class: The special third grounding method (Grounding resistance
should be 10Ω or lower.)
● Choose grounding wires according to the basic length and size of the
technical requirements of the electric equipment.
● Do avoid sharing grounding wire with other large power equipment
such as electric welder, power machine, etc. The grounding wire
should be kept away from the power supply wires for large power
equipment.
● The grounding method for several inverters together should be done as
the first and second diagrams below. Avoid the third loop.
● The grounding wire must be as short as possible.
