3 Installation
3.5 EMC installation
DC1…20… and DC1…OE1 Variable Frequency Drives
02/20 MN040059EN
www.eaton.com
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3.5.4 Screen earth kit
Cables that are not screened work like antennas (sending, receiving).
The effectiveness of the cable screen depends on a good screen connection
and a low screen impedance.
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For a proper EMC connection, cables emitting interference (e.g.
motor cables) and susceptible cables (analog signal and
measured values) must be screened and laid separately from
each other.
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Use only screens with tinned or nickel-plated copper braiding.
Screens made of steel braids or metal conduits are either not
suitable or suitable only to a limited extent (depending on the
EMC environment).
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Control and signal lines (analog, digital) should always be
grounded on one end, in the immediate vicinity of the supply
voltage source (PES).