sinee — 3.2.6.8Countermeasures Against RF Interference

EM500 Open-Loop Vector Control Inverter User Manual MCCB IM Conducted Interference Radio Device Signal Line Control Device 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 金属管 Metal Pipe EM600 变频器 IM EM500 Inverter Figure 3-9 Countermeasures Against Inductive Interference 3.2.6.8Countermeasures Against RF Interference reduced by installing a noise filter on both input and output sides and covering inverter RF interference can be produced by input cable, output cable and inverter and with an iron box. See Figure 3–10 for detail. MCCB Iron Box 铁箱 金属管 Metal Pipe IM Figure 3–10 Countermeasures Against RF Interference 44 EM500 Inverter Noise Filter 3O0vcerm 3以0cm上 信Sig号nal 线Line 控Con制trol 设Dev备ice 噪声 N滤ois波e Fi器lter EM600 噪声 Noise Filter 滤波器 EM变500频 Inv器erter