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Installation
01/02 AWB8230-1415GB
22
Using the radio interference filter
The RFI filter should be installed immediately adjacent to the
frequency inverter. The connection cable between the frequency
inverter and filter should be as short as possible. If cables are
longer than 30 cm, use screened cables.
The mounting surfaces for the frequency inverter and radio inter-
ference filter should be as free as possible from paint and oil
residue.
Up to size DV6-340-22K frequency inverters, the assigned DE6-
LZ... radio interference filters (
a
Section “Radio interference
filters“, Page 197) are mounted underneath the inverter (footprint
mounting).
With the DV6-340-30K to DV6-340-132K frequency inverters, fit
the radio interference filters on the side next to the device (book-
type mounting). You can fit the RFI filter either to the left or the
right of the frequency inverter.
Radio interference filters produce leakage currents which, in the
event of a fault (phase failure, load unbalance), can be larger than
the rated values. To prevent dangerous voltages, the filters must
therefore be earthed before use. As the leakage currents are high-
frequency interference sources, the earthing connections and
cables must have a low resistance and large contact surfaces.
Figure 10:
Footprint mounting
Figure 11:
Book-type mounting (on right side in the example)
Figure 12:
Earthing measures
Z1: RFI filter
G1: Frequency inverter
M
3
h
E
L1
L2
L3
U
V
W
R2
S2
T2
L1
L2
L3
L1
Z1
G1
L2
L3
PE
E
e
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