Required Compliance Levels; Emc Immunity - Danfoss FC 300 Design Manual

FC 300 Design Guide

Required Compliance Levels

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Standard / environment
IEC 61000-6-3 (generic)
IEC 61000-6-4
EN 61800-3 (restricted)
EN 61800-3 (unrestricted)
EN 55011: Threshold values and measuring methods for radio interference from industrial,
scientific and medical (ISM) high-frequency equipment.
Class A1: Equipment used in a public supply network. Restricted distribution.
Class A2: Equipment used in a public supply network.
Class B1: Equipment used in areas with a public supply network (residential, commerce, and
light industries). Unrestricted distribution.

EMC Immunity

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In order to document immunity against electrical interference from electrical phenomena, the following
immunity tests have been made on a system consisting of an adjustable frequency drive (with options, if
relevant), a shielded control cable, and a control box with potentiometer, motor cable, and motor.
The tests were performed in accordance with the following basic standards:
EN 61000-4-2 (IEC 61000-4-2): Electrostatic discharges (ESD)
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Simulation of electrostatic discharges from human beings.
EN 61000-4-3 (IEC 61000-4-3): Incoming electromagnetic field radiation, amplitude modulated
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Simulation of the effects of radar and radio communication equipment as well as mobile communications.
• EN 61000-4-4 (IEC 61000-4-4): Electrical interference
Simulation of interference brought about by switching with a contactor, relays, or similar devices.
EN 61000-4-5 (IEC 61000-4-5): Surge transients
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Simulation of transients brought about, e.g., by lightning that strikes near installations.
EN 61000-4-6 (IEC 61000-4-6): RF Common mode
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Simulation of the effect from radio-transmitting equipment connected to connection cables.
See following EMC immunity form.
Introduction to FC 300
Housing, trades, and light industries
Conducted Radiated
Class B Class B
Class A1 Class A1
Class B Class B
MG.33.B6.22 - VLT is a registered Danfoss trademark
Industrial environment
Conducted Radiated
Class A1 Class A1
Class A1 Class A1
Class A2 Class A2
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