Danfoss VLT 2800 Servisní příručka stáhnout pdf (Strana 146)

Limits and methods of measurement of radio disturbance characteristics of industrial, scientific and med-

ical (ISM) high-frequency equipment.

Class 1A:

Equipment used in an industrial environment.

Class 1B:

Equipment used in areas with a public supply network (residential, commerce and light industry).

EMC Immunity

In order to document immunity against electrical interference, the following immunity tests have been made on a

system consisting of a frequency converter, a screened/armoured control cable and a control box with potenti-

ometer, screened/armoured motor cable, screened/armoured brake cable and an LCP 2 with a cable.

The tests were performed in accordance with the fol-

lowing basic standards:

•

EN 61000-4-4 (IEC 61000-4-4): Burst transients Simulation of interference brought about by switching

with contactors, relays or similar devices.

•

EN 61000-4-5 (IEC 61000-4-5): Surge transients Simulation of transients brought about e.g. by lightning

that strikes near installations.

•

EN 61000-4-2 (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 radiation, amplitude modula-

ted.Simulation of the effects of radar and radio broadcast devices as well as mobile communication

devices.

•

VDE 0160 class W2 test pulse: Mains transients Simulation of high-energy transients generated by

breaks in master fuses, connection to phase advancer batteries and the like.

•

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.

VLT

2800 Series

146 MG.27.E3.02 - VLT

is a registered Danfoss trademark

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Danfoss VLT 2800 Servisní příručka Strana 146