FC 300 Design Guide
Introduction to FC 300
" Required Compliance Levels
Standard / environment Housing, trades, and light industries Industrial environme nt
Conducted Radiated Conducted Radiated
IEC 61000-6-3 (generic) Class B Class B
IEC 61000-6-4 Class A1 Class A1
EN 61800-3 (restricted)
Class A1 Class A1 Class A1 Class A1
EN 61800-3 (unrestricted) Class B Class B Class A2 Class A2
EN 55011: Threshold values and measuring meth ods for radio interference from industrial,
scientific and me dical (ISM) high-freque ncy equipment.
Class A1: Equipment used in a public supply network. Restricted distribution.
Class A2: Equipment u sed 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
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 cont rol box with potentiometer, motor cable, a nd motor.
The tests were performed in accordance with the f ollow ing basic standards:
• EN 61000-4-2 (IEC 61000-4-2): Electrostatic discharges (ESD)
Simulation of electrostatic discharges from human beings.
• EN 61000-4-3 (IEC 61000-4- 3): Incoming electromagnetic field radiatio n, amplit ude modulated
Simulation of the effec ts of radar and radio communica tion 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 simil ar de vices.
• EN 61000-4-5 (IEC 61000-4-5): Surge transients
Simulation of transients brought about, e.g., by lightning that strikes near installations.
• EN 61000-4-6 (IEC 61000-4-6): RF Common mode
Simulation of the effect from radio-transmitting equipment connected to connection cables.
See following EMC immunity form.
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MG.33.B6.22 - VLT is a registered Danfoss trademark
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