FVR-C11S-EN
13-1
13 Electromagnetic Compatibility (EMC)
13
13 Electromagnetic
Compatibility (EMC)
13-1 General
In accordance with the provisions described in
the European Commission Guidelines Docu-
ment on Council Directive 89/336/EEC,
Fuji Electric Co., Ltd. has chosen to classify the
FVR-C11S range of Inverters as "Complex
Components".
Classification as a "Complex Components" al-
lows a product to be treated as an "apparatus",
and thus permits compliance with the essential
requirements of the EMC Directive to be demon-
strated to both an integrator of FVR Inverters
and to his customer or the installer and the user.
FVR Inverters is supplied ‘CE-marked’, signify-
ing compliance with EC Directive 89/336/EEC
when fitted with specified filter units installed
and earthed in accordance with this sheet.
This Specification requires the following per-
formance criteria to be met.
EMC product standard
EN61800-3/1996
Immunity:
Second environment
(Industrial environment )
Emission:
First environment
(Domestic environment )
Finally, it is customer’s responsibility to
check whether the equipment conforms to
EMC directive.
13-2 RFI Filters
It is strongly recommended that the appropriate
FVR input filter is used, as shown in the follow-
ings, to limit RF current flowing into the main
supply circuit.
Without an input filter a FVR installation may not
meet statutory requirement. FVR Inverters con-
tain high-power semi-conductor devices which
are switched at high speeds to synthesize a
near-sinusoidal current wave form across the
frequency range of output.
Rapidly-changing voltages and currents will
generate some degree of electromagnetic emis-
sion. Emissions will be predominantly conducted
through the motor and the mains supply cables,
although some radiated emissions will be detect-
ed in close proximity to the drive system.
It is essential that precautions are taken both at
the design stage and at the time of installation to
prevent radio frequency interference (RFI) from
the drive system affecting sensitive equipment in
close proximity.
The RFI filters range are designed especially for
the FVR Inverter and help to ensure EMC com-
pliance of machinery and installations using the
Inverters.
The Inverters may be mounted on top of the filter
using the integral fixing positions, the intention
being that valuable space inside wiring cabinets
may be saved. (Refer to Table 13-2-1)
