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Electrical connection
6.3 Electromagnetic compatibility
Cable installation
● Cables that are subject to or sensitive to interference should be laid as far apart from each
● The distance between the power cable and the signal cable should be at least 20 cm.
● When the cables are routed close to ground potential, the immunity to interference is
● Ground the reserve cores on at least one end.
● In order to avoid additional locations where interference can be coupled in, long cables
● If conductors or cables conduct signals of different classes, then the conductors and cables
Shield connection
● Do not use cable shields to conduct current. It is not permissible that the cable shield is used
● Apply the cable shield so that it covers the greatest possible surface area. Use ground
● Avoid extending the cable shield to the grounding point using a wire. This reduces the shield
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other as possible.
Device-specific data apply for power cables. You can find further information on power
cables under "Connecting power cables".
increased. For this reason, you are advised to lay these cables along edges and at ground
potential.
should be shortened or routed where there is little interference.
must cross at a right angle. This especially involves sensitive and noisy signals.
– Class 1:
Unshielded cables for ≤ 60 V DC
Unshielded cables for ≤ 25 V AC
Shielded analog signal cables
Shielded bus and data cables
Operator panel interfaces, incremental/absolute encoder cables
– Class 2:
Unshielded cables for > 60 V DC and ≤ 230 V DC
Unshielded cables for > 25 V AC and ≤ 230 V AC
– Class 3:
Unshielded cables for > 230 V AC/V DC and ≤ 1000 V AC/DC
– Class 4:
Unshielded cables for > 1000 V AC/DC
as neutral or PE conductor.
clamps, ground terminals or ground screw connections.
effectiveness by up to 90%.
SINAMICS SL150 6SL39616RC100AA02
Operating Instructions Rev.201910281458 EXAMPLE
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