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CHAPTER 3 - INSTALLATION AND CONNECTION
3.3 EUROPEAN EMC
DIRECTIVE -
REQUIREMENTS
FOR CONFORMING
INSTALLATIONS
The CFW-08 inverter series was designed considering safety
and EMC (Electromagnetic Compatibility) aspects.
The CFW-08 units do not have an intrinsic function until
connected with other components (e. g. a motor). Therefore,
the basic product is not CE marked for compliance with the
EMC Directive. The end user takes personal responsibility
for the EMC compliance of the whole installation. However,
when installed according to the recommendations described
in the manual of the product and including the recommended
filters and EMC measures the CFW-08 fulfill all requirements
of the EMC Directive (2004/108/EEC) as defined by the
EMC
Product Standard for Adjustable Speed Electrical Power
Drive Systems EN61800-3.
Compliance of the CFW-08 series is based on the testing of
the representative models. A Technical Construction File was
checked and approved by a Competent Body.
3.3.1 Installation
The figure 3.19 shows the EMC filters connection.
Figure 3.19
- EMC filters connection - general condition
Output
CM
Choke
Transformer
Ground Rod/Grid
or Building Steel
Structure
Metallic Cabinet (when required)
Protective Grounding - PE
Motor
PE
CFW-08
L2/N
L1/L
L3
E
PE
XC1 1 to 12
U
Input CM
Choke
Controling and Signal Wiring
V
W
PE
L1/L
L2/N
L3
External
Input RFI
Filter
L2
L1
L3
E
Obs.:
Single-phase input inverters use single-phase filters and only L1/L and L2/N are used.
The following items are required in order to have a conforming
installation:
1) The motor cable must be armored, flexible armored or
installed inside a metallic conduit or trunking with equivalent
attenuation. Ground the screen/metallic conduit at both ends
(inverter and motor).
2) Control and signal wiring must be shielded or installed inside
a metallic conduit or trunking with equivalent attenuation.
3) The inverter and the external filter must be mounted on a
common metallic back plate in close proximity to one another.
Ensure that a good electrical connection is made between
the heatsink (inverter), the frame (external filter) and the back
plate.
