Emc Installation - Eaton PowerXL DB1 Installation Manual

3 Installation

3.4 EMC installation

3.4 EMC installation
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The responsibility to comply with the legally stipulated limit values and thus
the provision of electromagnetic compatibility is the responsibility of the end
user or system operator. This operator must also take measures to minimize
or remove emission in the environment concerned. He must also utilize
means to increase the interference immunity of the devices of the system.
￫
In a power drive system (PDS) with variable frequency drives,
you should take measures for electromagnetic compatibility
(EMC) while performing engineering, since changes or improve-
ments to the installation site, which are required in the installa-
tion or during assembly, are normally associated with additional
higher costs.
The technology and system of a variable frequency drive cause the flow of
high frequency leakage current during operation. Because of this, all ground-
ing elements must be low-impedance elements connected in such a way as
to establish an electrical contact across a large surface area.
In the case of any leakage currents greater than 3.5 mA, in accordance with
IEC/EN 61800-5-1,
• the cable cross-section of the protective conductor must be ≧ 10 mm
or
• the protective conductor must be open-circuit monitored, or
• a second protective conductor must be fitted.
For an EMC-compliant installation, we recommend the following measures:
• Installation of the variable frequency drive in a metallically conductive
housing with a good connection to ground,
• screened motor cables (short cables).
￫
Ground all conductive components and housings in a drive sys-
tem using as short a line as possible with the greatest possible
cross-section (Cu-braid).
WARNING

In a home environment this product can cause high-frequency
interference, which may require remedial action.
DB1 Variable Frequency Drives 09/17 MN040031EN www.eaton.com
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