Chapter 6 EMC
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Theh system (machinery or appliance) installed with the AC drive must also have the CE mark. The system
integrator is responsible for compliance of the system with the EMC directive and standard EN 61800-3, 2004
Category C2.
If applied in the rst environment, the AC drive may generate radio interference. Besides the CE compliance described in
this chapter, users must take measures to avoid such interference, if necessary.
6.3 Selection of Peripheral EMC Devices
Figure 6-1 Peripheral EMC devices of the CS200
AC input reactor
Electromagnetic
contactor
Breaker
Three-phase AC
power supply
AC input filter
AC output contactor
Motor
CS200
6.3.1 Installation of EMC Input Filter on Power Input Side
An EMC filter installed between the AC drive and the power supply can not only restrict the interference of
electromagnetic noise in the surrounding environment of the AC drive, but also prevents the interference from the
AC drive on the surrounding equipment.
The CS200 satises the requirements of category C2 only with an EMC lter installed on the power input side. The
installation precautions are as follows:
Strictly comply with the ratings when using the EMC lter. The EMC lter is category I electric apparatus, and
therefore, the metal housing ground of the lter should be in good contact with the metal ground of the installation
cabinet on a large area, and requires good conductive continuity. Otherwise, it will result in electric shock or poor
EMC effect.
The ground of the EMC lter and the PE conductor of the AC drive must be tied to the same common ground.
Otherwise, the EMC effect will be affected seriously.
The EMC lter should be installed as closely as possible to the power input side of the AC drive.
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