However, reducing the carrier frequency will increase the motor noise. Please
note that adding a reactor is also an effective way to solve the leakage current.
Chapter 8 EMC (Electromagnetic Compatibility)
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Factors and solutions that cause leakage current between lines:
There is distributed capacitance between the output wiring of the inverter. If the
current passing through the wiring contains high-order harmonics, it may cause
resonance and cause leakage current. At this time, using a thermal relay may
cause it to malfunction.
The solution is to reduce the carrier frequency or install an output reactor. When
using the inverter, it is recommended not to install a thermal relay between the
inverter and the motor, and use the electronic overcurrent protection function of
the inverter.
8.3.6 Precautions for installing EMC input filter on power input
When installing an EMCS input filter at the power input end, pay attention to the
following:
When using the filter, please use it strictly according to the rated value; since
the filter is a Class I electrical appliance, the ground of the metal casing of the
filter should be in good contact with the metal ground of the installation cab-
inet in a large area, and good electrical continuity is required, otherwise there
will be electric shock Dangerous and seriously affect the EMC effect;
Through the EMC test, it is found that the filter ground must be connected to
the same common ground as the PE terminal of the inverter, otherwise the
EMC effect will be seriously affected;
Install the filter as close to the power input end of the inverter as possible;
The EMC input filter cannot be used at the output end of the inverter for
filtering.
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Summary of Contents for 2S-0.4G-B
Page 6: ...Safety and Attentions Chapter 1 1 1 Safety Matters 6 1 2 Use Considerations 9...
Page 80: ...Function Parameter Table 5 1 Functional group 78 Chapter 5...
Page 126: ...Function Parameter Table Chapter 6...
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