4
EMC components
Manual – Accessories
16
4
EMC components
You can install EMC components to improve interference immunity.
EMC components, such as line filters and output filters, require a large-area, metallic
contact with the frequency inverter via a shared mounting plate.
They must be placed as close to the corresponding unit as possible in order to keep
the lines short between the EMC component and the unit (max. 50 cm).
Stick to the following order of the components in the control cabinet:
ND
NF
NF
NF
HD
ND
MOVI-
TRAC
LT
MOVI-
TRAC
LT
MOVI-
TRAC
LT
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ND
= Line choke
Green cable
= Cable without EMC
NF
= Line filter
Red cable
= Cable with EMC
HD
= Output chokes
Make sure that the supply cable (before the line filter) does not cross or run in parallel
to the cable with EMC (between line filter and frequency inverter). Improper routing
can lead to EMC interference in cables that were already filtered.
If these requirements cannot be met, it makes sense to use shielded cables. To elim-
inate inductive coupling, do not use single conductors for connection.
If you install EMC components on the base plate of the control cabinet due to their
high weight (not ideal), you must connect the base plate to the mounting plate using
an HD litz wire.
23540052/EN – 06/2018
