Electromagnetic Compatibility - Siemens SINAMICS SM120 Operating Instructions Manual

Note
We recommend using shielded cables. Unshielded cables can transfer disturbances to the
control and signal lines and lead to malfunctions in the drive.
Note
To ensure trouble-free operation without interference or disturbances, route the power cables
and signal lines separately. Interference, for example, will result in the device not behaving as
expected.
When connecting and routing power and signal cables, observe the instructions contained in
the "Electromagnetic compatibility" section.
See also
Electromagnetic compatibility (Page 67)
6.2

Electromagnetic compatibility

The following fundamental information and guidelines facilitate compliance with the EMC
directives.
Note
We recommend that EMC is planned for the entire plant.
Cabinet installation
● Connect painted or anodized metal components using contact washers or remove the
● Use unpainted, de-oiled mounting plates.
● Establish a central connection between ground and the protective conductor system (PE
Cable installation
● Cables that are subject to or sensitive to interference should be laid as far apart from each
● The distance between the electric power cable and signal cable should be > 20 cm. The
SINAMICS SM120 6SL38715
Operating Instructions 07/2015
insulating layer.
protective conductor).
other as possible.
drive-specific information applies to power cables. You can find further information on power
cables under "Connecting power cables".
Electrical connection
6.2 Electromagnetic compatibility
67