EMC 229
V800 Series High Performance Closed-Loop Vector Inverter User Manual
12.5 SHIELDED CABLE
In order to meet EMC requirements of CE, it must use shielded cable with shielded layer.
Shielded cable has 3 phase conductive shielded cable and 4 phase conductive shielded cable. If
conductive performance of shielded layer cannot meet requirement, it would add one separate
PE wire or use 4 phase conductive shielded cable with one PE wire.
In order to restrain shooting and conducting of radio frequency effectively, shielded layer of
shielded cable makes up of coaxial copper intertexture. For increasing shielding efficiency and
conductive performance, intertexture density of shielded layer should be more than 90%.
12.6 CABLE WIRING REQUIREMENTS
1) Wiring of motor should be far from other cable wirings, and cable of several inverter motors
can be wiring side by side.
2) Wiring of motor cable, input drive cable and control cable would be in different wire casing. In
order to avoid electromagnetic interference of inverter output voltage with fast changing, it
should avoid long distance wiring side by side of motor cable and other cables.
3) When control cable must cross drive cable, it should ensure the angle of two
cables with 90 degree. Do not cross other cables with inverter.
4) The drive input, output and weak signal cable (e.g. control cable) of inverter
should not wire parallel. With condition available, it is better to wire vertically.
5) Please keep good connection of cable wire casings and fine grounding.
Aluminum wire casing could improve equipotential voltage.
6) Filter, inverter, and motor should be in good connection with system (mechanical
equips) with painting protection of installed parts and sufficient contact with
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