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青岛纺织机械配件厂产品中,6年多已使用变频器2000余台。开始时主要考虑功能及主要技术指标能否满足生产设备的工艺需要。随着用量增多,使我们体会到必须对以下几个问题应予以足够重视。 1.变频器的保护功能是否合理开始认为只要有保护功能就行了。如曾大量使用的某家产品,其使用说明中称:“主电路直流电压过大,约820V,变频器过电压保护动作,停止输出”。但实物中主电路整流后的滤波电容器共4只,2只串联后再并联使用,每只电容器的耐
Qingdao Textile Machinery Parts Factory products, more than 6 years have been using the inverter more than 2000 Taiwan. The main consideration at the beginning of the function and the main technical indicators can meet the production equipment needs of the process. With the increase in usage, we have realized that we must pay enough attention to the following issues. 1. Is the protection function of the inverter reasonable to begin with as long as it has the protection function? Such as a large number of products have been used, the instructions said: “The main circuit DC voltage is too large, about 820V, inverter over-voltage protection action, stop the output ”. But in-kind main circuit rectified filter capacitor a total of four, two in series and then in parallel, the resistance of each capacitor