1

One

确保电气控制柜中的所有设备接地良好，使用短和粗的接地线连接到公共接地点或接地母排上。连接到变频器的任何控制设备(比如一台plc)要与其共地，同样也要使用短和粗的导线接地。最好采用扁平导体(例如金属网)，因其在高频时阻抗较低。

Ensure that the electrical control cabinet of all equipment is well grounded, using short and thick grounding wire connected to the common ground or grounding bus. Any control device connected to the inverter (such as a PLC) must be used in conjunction with a short and thick wire to ground. A flat conductor (such as a metal mesh) is best used because of its low impedance at high frequencies.

2

Two

电气控制柜低压单元，继电器，接触器使用熔断器加以保护；当变频器到电机的连线超过100m时，当变频器供电源容量大于600kw/a或供电电源容量大于变频器容量的10倍时，建议加进输入输出电抗器。

The electrical control cabinet, low voltage unit, relay contactor, protected by fuses; when the drive motor to connect more than 100m, 10 times when the inverter power supply capacity of more than 600kw/a or the power supply capacity is greater than the capacity of the transducer, the suggestion of including input and output reactor.

3

Three

确保电气控制柜中的接触器有灭弧功能，交流接触器采用r-c抑制器，直流接触器采用“飞轮”二极管，装入绕组中。采用压敏电阻抑制器也是很有效的。

Ensure that the contactor in the electric control cabinet has arc extinguishing function, the AC contactor adopts R-C suppressor, and the DC contactor adopts "flywheel" diode in the winding. The use of varistors is also very effective.

4

Four

如果设备运行在一个对噪声敏感的环境中，可以采用emc 滤波器减小辐射干扰。同时为了达到最优的效果，确保滤波器与安装板之间应有良好的接触。

If the device is operating in a noise sensitive environment, the EMC filter can be used to reduce radiation interference. At the same time, in order to achieve the best effect, ensure that the filter and installation board should be in good contact.

5

Five

电机电缆应与其它控制电缆分开走线，其最小距离为500mm。同时应避免电机电缆与控制电缆长距离平行走线。如果控制电缆和电源电缆交叉，应尽可能使它们按90°角交叉。同时必须用合适的夹子将电机电缆和控制电缆的屏蔽层固定到安装板上。

The motor cable shall be separated from other control cables with minimum distance of 500mm. At the same time, the motor cable should be avoided in parallel with the control cable in parallel. If the control cable and the power cable cross, as far as possible to make them by 90 degrees cross. At the same time, the shielding layer of the motor cable and control cable must be fixed to the mounting plate with a suitable clip.