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PROFINET Installation Guideline for Cabling and Assembly

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1.3.8 Distortion<br />

• Distortion, <strong>and</strong> in particular, twisting<br />

can degrade the electrical<br />

properties of <strong>PROFINET</strong> cables.<br />

There<strong>for</strong>e, do not distort or twist<br />

<strong>PROFINET</strong> cables whilst unreeling<br />

or laying. Special distortionresistant<br />

<strong>PROFINET</strong> cables can be<br />

obtained from some manufacturers.<br />

Laying <strong>PROFINET</strong> cables<br />

1.3.9 Flexible <strong>PROFINET</strong> cables (distortion cables)<br />

• For <strong>PROFINET</strong> cables subject to<br />

frequent distortion, use flexible,<br />

distortion-resistant <strong>PROFINET</strong><br />

cables. Robots are a typical<br />

application.<br />

34/99<br />

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