PR6423/00R-000带前置器电力控制器EPRO
控制系统(DCS、PLC/SPS、CNC):面板控制器、HMI和显示面板、工业PC、驱动器(变频器和伺服系统)、伺服电机、伺服驱动，电源模块水处理/环保、锅炉供暖、能源、输配电PLC模块，可编程控制器，CPU模块，IO模块，DO模块，AI模块，DI模块，网通信模块，以太网模块，运动控制模块，模拟量输入模块，模拟量输出模块，数字输入模块，数字输出模块，冗余模块，电源模块，继电器输出模块，继电器输入模块，处理器模块。
Control system (DCS, PLC/SPS, CNC): Panel controller, HMI and display panel, industrial PC, drive (inverter and servo system), servo motor, servo drive, power module Water treatment/environmental protection, boiler heating, energy, power transmission and distribution PLC module, Programmable controller, CPU module, IO module, DO module, AI module, DI module, network communication module, Ethernet module, motion control module, analog input module, analog output module, digital input module, digital output module, redundancy module, power module, relay output module, relay input module, processor module.

1．CPU模块

CPU模块主要由微处理器(CPU芯片)和存储器组成。在PLC控制系统中厂CPU模块相当于人的大脑，它不断地采集输入信号，执行用户程序，刷新系统的输出；存储器用来储存程序和数据。

 

2.I/O模块

输入(1nput)模块和输出(Output)模块简称为I／O模块，它们是系统的眼、耳、手、脚，是外部现场设备和CPU模块的桥梁。

输入模块用来接收和采集输入信号，开关量输入模块用来接收从按钮；选择开关、数字拨码开关、限位开关、接近开关、光电开关、压力继电器等过来的开关量输入信号；模拟量输入模块用来接收电位器、测速发电机和各种变送器提供的连续变化的模拟量电流、电压信号。

开关量输出模块用来控制接触器、电磁阀、电磁铁、指示灯、数字显示装置和报警装置等输出设备，模拟量输出模块月手来控制调节阀、变频器等执行装置。

 

CPU模块的工作电压一般是5V，而PLC的输入／输出信号电压一般较高，如直流24V和交流220V。从外部引入的尖峰电压和干扰噪声可能损坏CPU模块中的元器件，或使PLC不能正常工作。在I／O模块中，用光耦合器、光电晶闸管、小型继电器等器件来隔离PLC的内部电路和外部的I／O电路，I／O模块除了传递信号外，还有电平转换与隔离的作用。

CPU module
The CPU module is mainly composed of a microprocessor (CPU chip) and memory. In the PLC control system, the factory CPU module is equivalent to the human brain, which constantly collects the input signal, executes the user program, and refreshes the output of the system. Memory is used to store programs and data.
I/O module
The input (1nput) module and Output (Output) module, referred to as the I/O module, are the eyes, ears, hands and feet of the system and the bridge between the external field equipment and the CPU module.
The input module is used to receive and collect the input signal, and the switching input module is used to receive the slave button. Select switch, digital dip switch, limit switch, proximity switch, photoelectric switch, pressure relay and other incoming switch input signal; The analog input module is used to receive the continuously changing analog current and voltage signals provided by potentiometer, tachometer generator and various transmitters.
The switching output module is used to control the output equipment such as contactor, solenoid valve, electromagnet, indicator light, digital display device and alarm device, and the analog output module is used to control the actuator such as regulating valve and frequency converter.
 The operating voltage of the CPU module is generally 5V, while the input/output signal voltage of the PLC is generally higher, such as DC 24V and AC 220V. Peak voltage and interference noise introduced from the outside can damage components in the CPU module or make the PLC not work properly. In the I/O module, optical couplers, photoelectric thyristors, small relays and other devices to isolate the internal circuit of the PLC and the external I/O circuit, I/O module in addition to transmitting signals, there are level conversion and isolation.



3BSE030220R1  CI854AK01
3BHE005555R0101  LDSYN-101
LWN2660-6 3BHL000986P7002 
3BSE013208R0001 TB820V2
LDGRB-01 61320954 
3BHB003041R0101 UFC719AE101
3BHE024577R0101 PPC907BE101 
UAC389AE02 HIEE300888R0002 
XVC768AE102 3BHB007211R0102 
IC693CPU331
IC697CPX772
SR469-P5-HI-A20
VMIVME-7750
HYDRAN M2
DS200DCFBG1BLC
VMIVME-7807

PR6423/00R-000带前置器电力控制器EPRO
PR6423/00R-000带前置器电力控制器EPRO
 

电力电子器件（Power Electronic Device），又称为功率半导体器件，用于电能变换和电能控制电路中的大功率（通常指电流为数十至数千安，电压为数百伏以上）电子器件。可以分为半控型器件、全控型器件和不可控型器件，其中晶闸管为半控型器件，承受电压和电流容量在所有器件中高；电力二极管为不可控器件，结构和原理简单，工作可靠；还可以分为电压驱动型器件和电流驱动型器件，其中GTO、GTR为电流驱动型器件，IGBT、电力MOSFET为电压驱动型器件。