II F 2-20
EMC Filters
Selection of electrical components in conformity
the EMC Guideline is described below.
The aim of the EMC Guideline is, as the name
itself implies, to achieve electromagnetic com-
patibility with other products and systems. The
Guideline is designed to ensure that a product's
emissions are so low that they do not impair the
interference immunity of another product.
Within the context of the EMC Guideline, two
aspects have to be considered:
the product's
interference immunity
the product's
emissions
The EMC Guideline does of course expect EMC
to be taken into account while a product is being
developed, but EMC cannot be designed in, only
quantitatively measured.
Note on EMC conformity
The conformity procedure lies within the respon-
sibility both of ABB Industrietechnik of the
machine manufacturers or system erectors con-
cerned, according to their share in expanding the
electrical equipment.
In order to comply with the protection targets of
the relevant EMC legislation (EMVG in Germany)
in systems and machines, the following EMC
standards have to be met:
EN 50082-2
Generic standard for noise immunity
Industrial environment
EN 50081-2
Generic standard for noise emission
Industrial environment
EN 50081-1
Generic standard for noise emission
Light industrial environment
You will find further information on the follow-
ing pages (see as well publication
Installation
of converters for armature and field supply
in accordance with EMC
).
Electronic system / 1-phase fan supply
The converter unit requires various auxiliary
voltages, e.g. the units electronics require 115 V/
1-ph or 230 V/1-ph, the unit fans require 230 V/
1-ph (Size C1 and C2) or 400 V/690 V/3-ph (Size
C3 and C4), according to their size. The T2
auxiliary transformer is available to supply the
units electronic system and the single-phase
fans.
Auxiliary transformer T2
Input voltage:
380...690 V/1-ph
Output voltage: 115/230 V/1-ph
Fig. 2.6/4: T2 auxiliary transformer
Earth fault monitor
An earth fault monitor is provided by the standard
software. If needed, the analogue input AI4 has
to be activated, a current signal of the three phase
currents should be supplied to AI4 by a current
transformer. If the addition of the three current
signal is different from zero, a fault is indicated
(for more information, see publication Technical
Data).
