D674A906U01 ABB流量变送器 流量计 PLC模块卡件 伺服控制器

　　D674A906U01 ABB流量变送器 流量计 PLC模块卡件 伺服控制器

　　D674A906U01 ABB流量变送器 流量计 PLC模块卡件 伺服控制器

　　D674A906U01 ABB流量变送器 流量计 PLC模块卡件 伺服控制器

　　主营DCS配件,PLC模块：本特利,英维思,伍德沃德,福克斯波罗,西屋,瑞恩,施德,ABB,Motorola,GE，安川,等等各***的PLC模块,机器人系统配件大型伺服系统备件

　　工控产品基本上都有

　　变频器节能主要表现在风机、水泵的应用上。风机、泵类负载采用变频调速后，节电率为20%～60%，这是因为风机、泵类负载的实际消耗功率基本与转速的三次方成比例。当用户需要的平均流量较小时，风机、泵类采用变频调速使其转速降低，节能效果非常明显。而传统的风机、泵类采用挡板和阀门进行流量调节，电动机转速基本不变，耗电功率变化不大。据统计，风机、泵类电动机用电量占全国用电量的31%，占工业用电量的50%。在此类负载上使用变频调速装置具有非常重要的意义。目前，应用较成功的有恒压供水、各类风机、中央空调和液压泵的变频调速。 [5]

　　在自动化系统中应用

　　由于变频器内置有32位或16位的微处理器，具有多种算术逻辑运算和智能控制功能，输出频率精度为0.1%~0.01%，且设置有完善的检测、保护环节，因此，在自动化系统中获得广泛应用。例如：化纤工业中的卷绕、拉伸、计量、导丝；玻璃工业中的平板玻璃退火炉、玻璃窑搅拌、拉边机、制瓶机；电弧炉自动加料、配料系统以及电梯的智能控制等。变提高工艺水平和产品质量方面的应用频器在数控机床控制、汽车生产线、造纸和电梯上的应用

　　Energy saving of frequency converter is mainly reflected in the application of fan and water pump. After variable frequency speed regulation is adopted for fan and pump loads, the power saving rate is 20% ~ 60%, because the actual power consumption of fan and pump loads is basically proportional to the third power of speed. When the average flow required by the user is small, the fan and pump adopt variable frequency speed regulation to reduce their speed, and the energy-saving effect is very obvious. While the traditional fans and pumps use baffles and valves for flow regulation, the motor speed is basically unchanged, and the power consumption changes little. According to statistics, the power consumption of fan and pump motors accounts for 31% of the national power consumption and 50% of the industrial power consumption. It is of great significance to use variable frequency speed regulation devices on such loads. At present, the successful applications include constant pressure water supply, various fans, central air conditioning and variable frequency speed regulation of hydraulic pumps. [5]

　　Application in automation system

　　Because the frequency converter has built-in 32-bit or 16 bit microprocessor, has a variety of arithmetic logic operation and intelligent control functions, the output frequency accuracy is 0.1%~0.01%, and is equipped with perfect detection and protection links, it is widely used in the automation system. For example: winding, stretching, metering and guide wire in chemical fiber industry; Flat glass annealing furnace, glass kiln mixing, edge drawing machine and bottle making machine in the glass industry; Automatic charging and batching system of electric arc furnace and intelligent control of elevator, etc. Application of frequency converter in CNC machine tool control, automobile production line, papermaking and elevator