1397-B030R-HAP-DS050-MB050-PE;
1397-B030R-HAP-DS050-MB050-PE现货;
1397-B030R-HAP-DS050-MB050-PE供应。
合理布线
能在相当大程度上削弱干扰信号的强度,布线时,各种设备的控制线应尽量远离的输入、输出线。控制线在空间上,应尽量和变频器的输入、输出线交叉,是垂直交叉。
削弱干扰源
接入电抗器或滤波器,对小功率变频器,成本较高,我们采用一种低成本的电磁干扰方法:将电机电缆从铁氧体环中穿过,使穿过部分导线的阻抗局部增大,阻止电磁干扰电流通过。如将导线在铁氧体环上绕几圈,总的电感和阻抗值将随圈数的平方而增大。电机可从铁氧体环中穿过三次。但应注意,连接电机和变频器的 接地线应留在环外。
对线路进行屏蔽
变频器到电动机之间的连接线,应尽量穿入金属管内,金属管应该接地。信号线屏蔽层不论是接公共端还是接地,都只能在一端进行,切不可两端都接。
准确接地
接地线应尽量地粗一些,接地点应尽量靠近变频器;接地线应尽量远离电源线;变频器所用地接地线,必须和其他设备地接地线分开;必须避免把所有设备的接地线连在一起后再接地;变频器的接地端子不能和电源的零线;相接。
8) 山无陵,江水为竭,冬雷震震,夏雨雪,天地合,乃敢与君绝!
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