Reel FlexiMova mm F0K37 Series, Руководство по проектированию и установке

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8 Electrical connections
FlexiMova
®
mm - Design and Installation
39 of 80
8 Electrical connections
8.1 Electromagnetic compatibility
8.1.1 Classification
The product is designed in compliance with the EMC Directive 2014/30/UE
“Electromagnetic Compatibility” in accordance with the reference standard
EN 61800-3 which in turn refers to EN 55011 for the part relating to
electromagnetic emissions.
Table 27 : Product classification
Size Category (*) Definition
Limit values
according to
EN 55011
A - B - C C1
In the first environment (domestic and office
premises) frequency converters installed with a power
supply voltage less than 1000 V.
Class B
D - E C2
In the first environment (domestic and office
premises) frequency converters installed with a power
supply voltage less than 1000 V, plug-in or movable,
installed and commissioned by specialist technicians.
Class A group 1
(*) The categories are only achieved if the instruction in this chapter are fully complied with.
8.1.2 Requirements for network harmonics
In compliance with EN 61000-3-2 and EN 61000-3-12 the product in question is
a professional device. For its connection to the public mains supply network
the following main technical standards are applied:

EN 61000-3-2 for symmetrically-controlled three-phase equipment up to 16A
 EN 61000-3-12 for equipment with current per phase between 16 A and
75A
If a further reduction of the network harmonics is required, suitable line
reactors or filters can be installed (see chapter on “Electrical connections”
where you will find all the tables with the necessary data).
8.1.3 Immunity of the electrical connections
Particular attention must be given to the electrical connections and to a
good ground connection, as the propagation of the disturbances received
and emitted by the inverter occurs through the connection cables.
The tests carried on FlexiMova
®
mm demonstrate high immunity to
disturbances and low emission. The following are some important wiring and
installation guidelines:
 The cable connections and the type of cable must be chosen according to
their function.
 Signal cables must be shielded with a minimum coverage of 80%.
 For inverter-motor power cables the shield must be connected at both ends.

The cable shield should not be considered an equipotential ground
connection.
 Freewheeling diodes must always be installed on the DC-controlled relays
and RC groups on AC-controlled relays or contactors in the electric cabinets
that contain and/or share the same power supplies as the inverter.
 Connect the signal cable shield to the fixings provided inside the converter.

The cable shield must be one continuous piece.