1)环境温度

1) environmental temperature

变频器与其他电子设备一样，对周围环境温度有一定的要求，一般为-10～+40℃。由于变频器内部是大功率的电子器件，极易受到工作温度的影响，为了保证变频器工作的安全性和可靠性，使用时应考虑留有余地，最好控制在40℃以下;40～50℃之间降低额定值使用，温度每升高1℃，额定输出电流需减少1%。如环境温度太高且温度变化大时，变频器的绝缘性会大大降低，影响变频器的寿命。

The frequency converter and other electronic equipment, has the certain request to the ambient temperature, generally for -10 ~ +40 degrees centigrade. Because the frequency of electronic devices is the internal power, is extremely easy to be influenced by temperature, in order to ensure the safety and reliability of the inverter, the use should be considered under the best control in 40 DEG C; between 40 to 50 DEG C lower ratings, per liter of high temperature of 1 DEG C, rated output current should be reduced by 1%. If the ambient temperature is too high and the temperature changes greatly, the insulation of the inverter will be greatly reduced, which will affect the life of the inverter.

2)环境湿度

2) environmental humidity

变频器与其他电气设备一样对环境湿度有一定要求，变频器的周围空气相对湿度≤95%(无结露)，根据现场工作环境，必要时需在变频柜箱中加放于燥剂和加热器。

The inverter and other electrical equipment to environmental humidity has certain requirements of the inverter, the ambient air relative humidity is less than or equal to 95% (without dew), according to the working condition, if necessary in the box and put in the cabinet drier and heater.

3)振动和冲击

3) vibration and shock

变频器在运行的过程中，要注意避免受到振动和冲击。变频器是由很多元器件通过焊接、螺丝连接等方式组装而成，当变频器或装变频器的控制柜受到机械振动或冲击时，会导致焊点、螺丝等连接器件或连接头松动或脱落，引起电气接触不良甚至造成器件间短路等严重故障。因此，变频器运行中除了应提高控制柜的机械强度、远离振动源和冲击源外，还应在控制柜外加装抗振橡皮垫片，在控制柜内的器件和安装板之间加装缓冲橡胶垫减振。一般在设备运行一段时间后，应对控制柜进行检查和维护。

In the operation of the converter, attention should be paid to avoid vibration and impact. The inverter is composed of a lot of components assembled by welding, screw connection, or when the inverter control cabinet installed inverter is affected by mechanical vibration or shock, will cause the solder joint and screw connection device connecting head or loose or fall off, even made causebad electrical device short-circuit serious fault. Therefore, in addition to running the inverter should improve the mechanical strength of the control cabinet away from the vibration source and the impact of the source but also anti vibration rubber gasket should be installed in the control cabinet, control cabinet and the device mounting plate is installed between the buffer damping rubber pad. Generally, after the equipment has been running for a period of time, the control cabinet should be inspected and maintained.