Electromagnetic Compatibility (Emc) - Bitzer VARIPACK FD+6 Instructions De Service

– Digital output for automatic detection of the exten-
sion module by the frequency inverter
(X12: 3: DI6).
• X4: 5
– Digital input for receiving the start command for
the 2nd compressor of frequency inverter
(X12: 4: DO3).
– Switches the relay X5.
• X5: 1 and 2
– Potential-free relay for starting the 2nd com-
pressor.
– Max. voltage: 250 V AC.
– Protection from inductive or capacitive loads must
take place by external measures.
– Max. current: 6 A of resistive load.

5.5 Electromagnetic compatibility (EMC)

For an overview, see figure 14, page 23.
The VARIPACK frequency inverters comply with the
EU EMC directives 2014/30/EU and 2004/108/EC.
Interference immunity:
• EN61000-6-1:2007, Immunity for residential, com-
mercial and light-industrial environments.
• EN61000-6-2:2005, Immunity for industrial environ-
ments.
The emission of the frequency inverters is regulated by
the product standard EN61800-3, which distinguishes
between categories C1 − C4. Compared with the gen-
eric standards, according to EN61800-3:2004, the cat-
egory C2 corresponds to EN61000-6-4:2007+A1: 2011.
The category C3 is not transferable. The text below
only refers to C categories.
General EMC requirements for meeting category C2:
• Use of a shielded cable between FI and motor (mo-
tor cable), see figure 11, page 18.
– Connect shield on both sides.
– Use a compressor terminal box made of metal
and a screwed EMC cable gland.
– Guide the shield in the switch cabinet to the
VARIPACK and connect it to the cable fixture of
the VARIPACK.
22
• The motor cable
– should not cross other cables. If it does, crossov-
ers must be made at a 90° angle!
– should be installed separately from the supply line
and the control lines, if possible. If a parallel in-
stallation is unavoidable, maintain a clearance of
at least 0.25 m.
Detailed information on the harmonics see chapter
Analysis of the harmonics FDU+6 .. FKU+260, page
23.
WARNING
Possible high-frequency EMC interferences of
the voltage supply system!
FDU+6 .. FEU+16 are classified as profession-
ally used device according to
EN61000-3-2:2014.
Before connecting them to the public low-
voltage supply network, approval from the en-
ergy supply company must be obtained.
Information
FEU+24 - FKU+260 meet all requirements of
the standard EN61000-3-12:2011 (see figure
14, page 23).
FDU+6 .. FJU+145:
• are equipped as standard with an integrated EMC fil-
ter for category C2.
– However, for some types, a metal switch cabinet
with attenuation must be used, to ensure that the
limit values of the radiated interferences are not
exceeded (see figure 14, page 23).
If the EMC requirements of category C3 are sufficient,
the line length between FI and motor may be up to
50 m. In this case, it will not be necessary to use a spe-
cial switch cabinet either.
WARNING
Radio frequency interferences in the voltage
power network possible!
In a residential environment, this drive constella-
tion may cause radio frequency interferences
which may require mitigation measures.
FKU+180 .. FKU+260:
• are equipped with an integrated EMC filter for cat-
egory C3. To fulfil category C2, the external EMC fil-
ter, part number 347 955 02, designation
3359-250-28, is required at the input of the fre-
quency inverter.
CB-100-2