Emc-Compliant Cabinet Design - Siemens SINAMICS V20 Series Operating Instructions Manual

Electrical installation

4.4 EMC-compliant cabinet design

4.4 EMC-compliant cabinet design
The most cost-effective method of implementing interference suppression measures within
the control cabinet is to ensure that interference sources and potentially susceptible
equipment are installed separately from each other.
The control cabinet has to be divided into EMC zones and the devices within the control
cabinet have to be assigned to these zones following the rules below.
● The different zones must be electromagnetically decoupled by using separate metallic
● If necessary, filters and/or coupling modules should be used at the interfaces of the
● Cables connecting different zones must be separated and must not be routed within the
● All communication (e.g. RS485) and signal cables leaving the cabinet must be shielded.
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housings or grounded separation plates.
zones.
same cable harness or cable channel.
Zone B
Zone D
Zone C
Zone A
SINAMICS V20 Inverter
Operating Instructions, 07/2012, A5E03728167