20 | CFW300
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Installation and Connection
Second Environment:
aincludes all establishments other than those directly connected to a
low-voltage power supply network that supplies buildings used for domestic purposes.
Categories:
Category C1:
inverters with a voltage rating less than 1000 V and intended for use in the First
Environment.
Category C2:
inverters with a voltage rating less than 1000 V intended for use in the First
Environment, not provided with a plug connector or movable installations. They must be installed
and commissioned by a professional.
Category C3:
inverters with a voltage rating less than 1000 V and intended for use in the
Second Environment only (not designed for use in the First Environment).
NOTE!
A professional is a person or organization familiar with the installation and/or
commissioning of inverters, including their EMC aspects.
3.3.3 Characteristics of the RFI Filter
CFW300 inverters are installed with external filter when it is intended to reduce the disturbance
conducted from the inverter to the power line in the high frequency band (>150). It is observe
the maximum levels of conducted emission of electromagnetic compatibility standards, such
as EN 61800-3 and EN 55011.
For further details, refer to
Section 3.3 INSTALLATIONS ACCORDING TO EUROPEAN DIRECTIVE
OF ELECTROMAGNETIC COMPATIBILITY on page 18
For further information about the RFI filter model, refer to
The figure below demonstrate the connection of the filter to the inverter:
Protective ground
Metal panel (when necessary)
Grounding
rod
External input
RFI filter
PE
PE
PE
W
V
U
Signal and control wiring
Transformer
L1/L L1
L1/L
1...12
CFW300
XC1
PE PE
L2/N L2
L2/N
Motor
Power
supply
Figure 3.5:
Connection of the RFI filter - general conditions
