PROFINET Installation Guideline for Cabling and Assembly
PROFINET Installation Guideline for Cabling and Assembly
PROFINET Installation Guideline for Cabling and Assembly
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• Metallic conductive cable ducts<br />
should be fastened every 50 cm to<br />
the cabinet frame or walls using<br />
screws. Make sure that there is<br />
low-resistance connection path<br />
between the duct <strong>and</strong> the cabinet<br />
frame. When using painted or<br />
coated switch cabinets, this can be<br />
achieved by using lock washers.<br />
Another option is to remove the<br />
coating or paint. However, any<br />
bare surfaces shall be protected<br />
against corrosion.<br />
• At the cabinet entry, connect the<br />
shields of all cables run into the<br />
cabinet to the equipotential<br />
bonding conductor. For this, the<br />
shields should be connected to<br />
operational ground across an area<br />
of appropriate size. Special<br />
installation components are<br />
available from various vendors <strong>for</strong><br />
this purpose. The cables should be<br />
mechanically supported above the<br />
grounding clamp in order to avoid<br />
cable damage caused by cable<br />
movement.<br />
Laying <strong>PROFINET</strong> cables<br />
20/99<br />
© Copyright by PNO 2009 – all rights reserved<br />
50 cm
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