ABB_XVC770BE102_3BHE021083R0102 数字电源控制板

ABB_XVC770BE102_3BHE021083R0102 数字电源控制板

JAC389AE02 HIEE300888R0002数字电源控制板UAC389AE温度探头一般不可以直接接入常用模拟量模块，要要接入专用温度模块，或者加变送器。一般压力传感器也不能直接接入模拟量模块，一般是购买自带变送器，或者使用压力变送器。  　　

JAC389AE02 HIEE30088R0002数字电源控制板UAC389AE那么当传感器和变送器结合使用的时候可以将非电物理量转换成统一的标准电量，这就是传感器和变送器的一个作用。  　　

JAC389AE02 HIEE300888R0002数字电源控板UAC389AE传感器和变送器转换出来的是一人标准电量，是电信号，我们的PLC是不能真接接收电信号的，那么就需要一个转换，也就是AD转换，将模拟量转换成数字量在我们PLC这边，AD转换器其实就是一个模拟量的输入模块，而DA转换器就是模拟量的输出模块而对于模拟量输出，我们是做模拟量控制变频器速度，从而控制电机速度，或者是模拟量控制同服力矩和速度控制，又或者是模拟量控制比例阀的开度控制等。

ABB_XVC770BE102_3BHE021083R0102 数字电源控制板

JAC389AE02 HIEE300888R0002 digital power control board UAC389AE temperature probe generally can not be directly connected to the common analog module, to access the dedicated temperature module, or add a transmitter. Generally, the pressure sensor can not be directly connected to the analog module, which is generally to buy its own transmitter, or use a pressure transmitter.

JAC389AE02 HIEE30088R0002 digital power control board UAC389AE Then when the sensor and transmitter are used together, the non-electrical physical quantity can be converted into a unified standard electricity, which is a role of the sensor and transmitter.

JAC389AE02 HIEE300888R0002 digital power control board UAC389AE sensor and transmitter conversion is a standard electricity, is an electrical signal, our PLC is not really able to receive electrical signals, then you need a conversion, that is, AD conversion, the analog quantity into digital quantity in our PLC side, AD converter is actually an analog input module, and DA converter is an analog output module and for analog output, we do analog control frequency converter speed, so as to control motor speed, or analog control with the service torque and speed control, or analog control proportional valve opening control.