Sinee EM500 - Countermeasures against Inductive Interference; Countermeasures against RF Interference

EM500 Open-Loop Vector Control Inverter User Manual
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Figure 3-8 Noise Filter Installation on the Output Side
3.2.6.7Countermeasures Against Inductive Interference
In addition to the installation of a noise filter, the method of wiring all output cable
into grounded metal pipe can be adopted to suppress the inductive interference on the
output side. The distance between output cable and signal line shall be greater than 30 cm
and the inductive interference decreases substantially, as shown in Figure 3–9.
MCCB
信号线
30cm以上
金属管
控制设备
EM600
变频器
IM
EM500
Inverter
Metal Pipe
Over 30cm
Signal Line
Control Device
Figure 3-9 Countermeasures Against Inductive Interference
3.2.6.8Countermeasures Against RF Interference
RF interference can be produced by input cable, output cable and inverter and
reduced by installing a noise filter on both input and output sides and covering inverter
with an iron box. See Figure 3–10 for detail.
MCCB
噪声
滤波器
EM600
变频器
噪声
滤波器
IM
铁箱
金属管
Iron Box
Metal Pipe
Noise Filter
EM500 Inverter
Noise Filter
Figure 3–10 Countermeasures Against RF Interference