reliably.
6.3.4 Handing method for the interference of inverter on the surrounding
equipment
these interference include two types :one is the radiation interference of the
inverter. and the other is the conduction interference of the inverter. these two types
of interferences cause the surrounding electric equipments which suffer elector
magneitc or electrostatic induction. the surrounding equipments hereby produce
error action, For the different interferences, their solutions are shown as follows:
A、 For the measuring meters ,receivers and sensors ,their signals are generally
weak ,if they which are placed nearby the inverter or together with the
inverter in the same control cabinet are easy to suffer interference and to
generate error actions .Suggestion to be handled with following methods:
put in places far away from the interference source; donot arrange the
signal cables with the power cables in parallel and never bind them
together； both the signal cables and power cables employ shielded cables
and are well earthed; install ferrite magnetic ring(with suppressing
frequency of 30h2 to 1000h2)at the output side of the inverter and wind it
2～3 cycles; install EMC output filter in more severe conditions.
B、 when both the equipment suffering interference and the inverter make use
of the same power supply, it many cause conduction interference .if the
above method cannot remove the interference ,it can install EMC filter
between the inverter and the power supply (refer to Section 7.3.6 for the
prototyping operation)
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