BONFIGLIOLI act 401 Bedienungsanleitung PDF herunterladen (Seite 61)

EMI ﬁlters

Because of their intrinsic characteristics, all frequency

inverters often generate undesired high frequency

voltages generally referred to as “interference”.

Mains ﬁlters are installed to reduce this interference.

Within the European Union reference standard EN

EN61800-3 deﬁnes the thresholds for electromagnetic

interference for different classes of equipment.

Active Series frequency inverters up to size 9.2 kW can

be ordered with a built-in EMI ﬁlter conforming to

the requirements of the standard for “class A – group

2” environments.

Two series of external interference ﬁlters are

available for larger size Active frequency inverters

and for installations where conformity to the stricter

requirements of class B is necessary. The two series

differ both in construction and power range.

The ﬁrst set of ﬁlters are “backplate ﬁlters or foot

print”. They are available in sizes 7 to 40 A (suitable

for Active frequency inverters up to size 4), and allow

the frequency inverter to be installed on board the

ﬁlter itself. The second series of ﬁlters are “book

ﬁlters”. They cover all other Active sizes up to 130

A and are designed for installation on the same

mounting panel alongside the drive.

Mains ﬁlters with very low dispersion currents are

available upon request for speciﬁc applications.

Basic circuit diagram

PEPE

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Alexey 11 Jun 2024 | 08:57:25

Продается в России?

teophan 27 Jul 2025 | 09:25:51

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BONFIGLIOLI act 401 Bedienungsanleitung Seite 61