Gateway Component for PROFINET
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To prevent malfunctions, you have to route an equipotential
equalization conductor.
When doing so, bear in mind the following points:
– Select an equipotential equalization conductor with low impedance.
– Select the following as a reference value for the cross-section of the po-
tential equalization cable:
– 16 mm
2
for potential equalization cables of up to 200 m in length
– 25 mm
2
for potential equalization cables of more than 200 m in
length
– Use potential equalization cables made of copper or galvanized steel.
– Connect potential equalization cables extensively with the earth rail.
– The smallest surfaces possible should be sandwiched between poten-
tial equalization cables and signal cables.
If the devices of the control system are connected by shielded signal
cables that are earthed on both sides, the impedance must be 10% of
the shielding impedance.
Installation
