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Installation and Connection
Transformer
Ground
PE
rod/grid or
building steel
structure
Use only listed filters in lines with solid grounded neutral point. Do not use RFI filtes in IT networks, lines not
grounded or grounded via a high impedance.
3
Take the usual precautions for EMC filters installation: do not cross the filter input cables with the output cables,
mount the filter on a metallic plate assuring the biggest possible contact surface between the filter and the plate,
connect this plate to the ground via cordage.
3-38 | CFW-11 RB
RFI
Filter
Q1
Filter
F1
L1
L1
F2
L2
L2
F3
L3
L3
E
E
Figure 3.30: External RFI filter connections
Controling and signal
CFW-11 RB
CFW-11 DC
U
U
+
V
V
-
W
W
PE
PE
Panel ormetallic
enclosure
Protective grounding - PE
wiring
Motor
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