Chapter 2 – Electromagnetically compatible installation of drives and drive systems 
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Chapter 2 – Electromagnetically Compatible 
Installation of Drives and Drive Systems 
Introduction 
 
This  brochure  describes  the  electromagnetically  compatible  setup  of  your  drive  or  your  drive 
system. (Electro Magnetic Compatibility = EMC) 
Read  this  information  carefully  and  follow  the  instructions.  If  necessary,  provide  this  infor-
mation to third parties. 
HF interference results from rapid switching of electric currents and voltages. All AC, DC and 
servo drives very rapidly switch large currents and voltages to optimally supply connected electric 
motors. They are thus major sources of interference, generating both line-conducted and radiated 
interference. 
The additional use of line filters, also called interference suppression filters, and installation in a 
metal housing or a switch cabinet further improve the existing interference immunity. For the best 
possible damping of interference, special line filters have been developed which guarantee you 
easy assembly and installation along with the necessary electrical reliability. 
However, effective EMC is only ensured if the suitable filter is selected for the particular drive and 
installed in accordance with these EMC recommendations.