© Siemens AG, 2004. All rights reserved
EMC Installation Guideline – Planning Guide (EMV) – 03.2004 Edition
3-15
3 Interference Spreading
Electromagnetic interference sizes have only an effect on a control or system when
the following three components are available:
• Interference source
• Coupling path
• Interference sink
Source of interference
(interfering object)
Potentially susceptible
equipment
(interfered device)
e.g. drive unit, motor,
inductivity
Data link
e.g. setpoint cabel
e.g. positioning control,
numerical control
Fig. 3-1 Electromagnetic environment
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