N3 Drive Operations Manual
EMC Filters 22
16.0 EMC Filters
The inverters use PWM (Pulse Width Modulation) in the output power section which results in rapid on / off switching
of the solid state power devices (IGTB transistors). Because of this, unwanted EMI (Electromagnetic Interference) and
RFI (Radio Frequency Interference) is produced which may affect other equipment. The use of EMC filters listed in
the following table is used to control this interference within limits set forth by the following standards.
EMC Standard 89/336/EEC
EMI Radio Standard – EMS Immunity Standard
EN 61800-3 1996/A11 : 2000 First Environmental Unrestricted Distribution (Class B)
EN 61800-3 1996/A11 : 2000 First Environmental Restricted Distribution
First Environment
Restricted Distribution
First Environment
Unrestricted Distribution
Note: Please refer to Appendix D for dimensional information for the various type EMC filters.