Chapter 2 Wiring of V 810
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2.6.6 Earth connection (PE)
To ensure safety and to prevent electric shock and fire, the PE terminal must be earthed.
The ground wire should be large and short and it is better to use copper wire (> 4.0 mm
2
).
If more than one drive is required, do not connect the ground wire to a closed loop.
2.7 EMC compliant installation instructions
2.7.1 General EMC information
EMC stands for electromagnetic compatibility, which means that a device or system has
the ability to operate normally in an electromagnetic environment and will not generate
excessive electromagnetic interference from other devices.
EMC covers two areas: electromagnetic interference and electromagnetic perturbance.
Depending on the method of transmission, electromagnetic interference can be divided
into two categories: line interference and radiated interference. Line interference is
interference transmitted by the driver. Therefore, any wires (such as cables, transmission
lines, inductor, capacitor, etc.) are considered interference transmission channels.
Conversely, radiated interference is interference transmitted by electromagnetic waves
and energy is inversely proportional to the square of the distance.
Three necessary conditions must be met for electromagnetic interference: the source of
the interference, the transmission channel and the sensitive receiver. For customers, the
solution to the EMC problem is mainly in the transmission channel, because the attribute
of the interference source and receiver device cannot be changed.
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