3 electromagnetic compatibility (emc), 4 emc limit value classes – NORD Drivesystems BU0700 User Manual

Page 122

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NORDAC SK 700E Operating Manual

122

Subject to technical alterations

BU 0700 GB-1411

8.3 Electromagnetic compatibility (EMC)

All electrical equipment that have an intrinsic, independent function and are placed on the market as individual units for users
from January 1996 must comply with the EEC directive EEC/89/336EEC . There are three different ways for manufacturers to
display compliance with this directive:

1.

EC declaration of conformity

This is a declaration from the manufacturer stating that the requirements in the applicable European standards for the
electrical environment of the equipment have been met. Only those standards which are published in the Official
Journal of the European Community can be cited in the manufacturer’s declaration.

2.

Technical documentation

Technical documentation can be produced which describes the EMC characteristics of the device. This documentation
must be authoris

ed by one of the “Responsible bodies” named by the responsible European government. This makes it

possible to use standards that are still under preparation.

3.

EC type test certificate

This method only applies to radio transmitter equipment.

SK 700E inverters only have an intrinsic function when they are connected to other equipment (e.g. a motor). The base units
cannot therefore carry the CE mark that would confirm compliance with the EMC directive. Precise details are therefore given
below about the EMC behaviour of this product, based on the proviso that it is installed according to the guidelines and
instructions described in this documentation.

Class 1: General, for industrial environments

Complies with the EMC standard for power drives EN 61800-3, for use in secondary environments (industrial) and when not
generally available
.

Class 2: Interference suppressed for industrial environments (operation has own supply transformer)

In this operating class, the manufacturer can certify that his equipment meets the requirements of the EMC directive for
industrial environments with respect to their EMC behaviour in power drives. The limit values correspond to the basic standards
EN 50081-2 and EN 50082-2 for radiation and interference resistance in industrial environments.

Class 3: Interference suppressed for domestic, commercial and light industry environments

In this operating class, the manufacturer can certify that his equipment meets the requirements of the EMC directive for
domestic, commercial and light industry environments with respect to their EMC behaviour in power drives. The limit values
correspond to the basic standards EN 50081-1 and EN 50082-1 for radiation and interference resistance.

Note:

NORDAC SK 700E Frequency inverters are intended exclusively for commercial use. They are therefore not
subject to the requirements of the standard EN 61000-3-2 for radiation of harmonics.

8.4 EMC limit value classes

Device type

without aux. line filter

with aux. line filter

with aux. line filter

Mains filter type

SK 700E-151-340-A

-

SK 700E-222-340-A

Class 2 (A)

Class 2 (A)

Class 3 (B)

Allocation as per table

in Chap. 2.3/2.4

Max. motor cable, shielded

15m

50m

30m

SK 700E-302-340-O

-

SK 700E-163-340-O-VT

Class 1 (-)

Class 2 (A)

Class 3 (B)

Allocation as per table

in Chap. 2.4

Max. motor cable, shielded

---

50m

25m

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