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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Laying <strong>PROFINET</strong> cables<br />
1.3.11 Keeping to bending radii<br />
• Keep to the minimum permissible<br />
bending radii. Falling below the<br />
minimum bending radius may<br />
damage the <strong>PROFINET</strong> cable.<br />
Please consult the manufacturer<br />
data sheets <strong>for</strong> bending radii<br />
specifications.<br />
• For a single bend, the bending radius should typically not be smaller than 10<br />
times the cable diameter. If multiple bending (>10 x) is expected, e.g. due to<br />
the connection <strong>and</strong> disconnection of <strong>PROFINET</strong> nodes, a larger bending<br />
radius is required (typically 20 times the cable diameter).<br />
• When laying <strong>PROFINET</strong> cables<br />
they can be subjected to additional<br />
mechanical load caused by<br />
excessive tension. For that reason,<br />
larger bending radii are required<br />
during pulling than in the installed<br />
state. Pulling the <strong>PROFINET</strong> cable<br />
over a quoin can be particularly<br />
dangerous. It is there<strong>for</strong>e advisable<br />
to use guide pulleys.<br />
36/99<br />
© Copyright by PNO 2009 – all rights reserved<br />
Keep to<br />
minimum<br />
bending radius!
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