Inovance MD380 Series, User Manual

Page: 257 / 304

MD380 User Manual EMC
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The
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PE
Shield
PE conductor
and shield
PE
Shield
To suppress emission and conduction of the radio frequency interference effectively, the
shield of the shielded cable is cooper braid. The braided density of the cooper braid should
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Cable core
Internal insulation
Copper braid Copper shield Insulation jacket
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Figure 7-1 Grounding of the shielded cable
The shield
must be
grounded.
The installation precautions are as follows:
‡
Symmetrical shielded cable is recommended. The four-conductor shielded cable can
also be used as an input cable.
‡
The motor cable and PE shielded conducting wire (twisted shielded) should be as
short as possible to reduce electromagnetic radiation and external stray current and
capacitive current of the cable. If the motor cable is over 100 meters long, an output
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‡
It is recommended that all control cables be shielded.
‡
It is recommended that a shielded cable be used as the output power cable of the AC
drive; the cable shield must be well grounded. For devices suffering from interference,
shielded twisted pair (STP) cable is recommended as the lead wire and the cable
shield must be well grounded.
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