MKD112B-058-KP0-BN 力士乐伺服同步电机

　　电机放大机是传统的直流伺服电机的功放装置，因其控制简单，结实耐用，目前的新型号的雷达产品上仍有采用。下面主要以放大电机为例，和交流伺服电机比较其优缺点。 放大电机常称为扩大机，一般是用交流异步感应电动机拖动串联的两级直流发电机组，以此来实现直流控制。两组控制绕组，每组的输入阻抗为几千欧，若串接使用输入阻抗约10千欧，伺服电机一般为互补平衡对称输入，当系统输入不为零时打破其平衡，使放大电机有输出信号。当输入电流为十几到几十毫安时其输出可达100v以上的直流电压和几安到几十安的电流，直接接到直流伺服电机的电枢绕组上。其主要缺点是体积重量大，非线性度，尤其在零点附近不是很好，这对于要求高的系统需要仔细处理。 而交流伺服电机都配有专门的驱动器，它在体积和重量上远小于同功率的放大电机，它靠内部的晶体管或晶闸管组成的开关电路，根据伺服电机内的光电编码器或霍尔器件判断转子当时的位置，决定驱动电机的a、b、c三相应输出的状态，因此它的效率和平稳性都很好。所以不像控制放大电机需要做专门的功放电路。这种电机一般都为永磁式的，驱动器产生的a、b、c三相变化的电流控制电机转动，因此称为交流伺服电机;驱动器输入的控制信号可以是脉冲串，也可以是直流电压信号（一般为?10v），所以也有将其称为直流无刷电动机。 两种电机的简单试验比较 对两种电机作过简单的试验比较:只要将系统原先的直流误差信号直接接入交流伺服驱动器的模拟控制输入端，用交流伺服电机和它的驱动器代替原先的差分功放、电机放大机和直流伺服电机，而控制部分和测角元件等均不变，简单比较两种方案的输出特性。

　　以下是我司【主营产品】，有需要可以发来帮您对比下价格哦!

　　主营：世界品牌的PLC 、DCS 系统备件 模块

　　①Allen-Bradley(美国AB)系列产品》

　　②Schneider(施耐德电气)系列产品》

　　③General electric(通用电气)系列产品》

　　④Westinghouse(美国西屋)系列产品》

　　⑤SIEMENS(西门子系列产品)》

　　⑥销售ABB Robots. FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、Panasonic Robots、MOTOMAN Robots。

　　⑦estinghouse(西屋)： OVATION系统、WDPF系统、MAX1000系统备件。

　　⑧Invensys Foxboro(福克斯波罗)：I/A Series系统，FBM(现场输入/输出模块)顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数据通信及处理等。Invensys Triconex: 冗余容错控制系统、基于三重模件冗余(TMR)结构的现代化的容错控制器。

　　⑨Siemens(西门子)：Siemens MOORE， Siemens Simatic C1，Siemens数控系统等。

　　⑩Bosch Rexroth(博世力士乐)：Indramat，I/O模块,PLC控制器,驱动模块等。

　　◆Motorola(摩托)：MVME 162、MVME 167、MVME1772、MVME177等系列。

　　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。

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　　Motor amplifier is the power amplifier of traditional DC servo motor. Because of its simple control and durability, it is still used in new radar products. The following mainly takes the amplification motor as an example to compare its advantages and disadvantages with the AC servo motor. The amplifying motor is often called the expander. Generally, the AC asynchronous induction motor is used to drive the two-stage DC generator set in series to realize DC control. For two groups of control windings, the input impedance of each group is thousands of Ω. If the input impedance is about 10kΩ in series connection, the servo motor is generally complementary, balanced and symmetrical input. When the system input is not zero, its balance is broken, so that the amplified motor has output signal. When the input current is more than ten to tens of milliamps, its output can reach DC voltage of more than 100V and current of several to tens of AMPS, which are directly connected to the armature winding of DC servo motor. Its main disadvantages are large volume, weight and nonlinearity, especially near the zero point, which needs to be handled carefully for the system with high requirements. The AC servo motor is equipped with a special driver, which is much smaller than the amplification motor with the same power in volume and weight. It relies on the switching circuit composed of internal transistors or thyristors, judges the current position of the rotor according to the photoelectric encoder or hall device in the servo motor, and determines the output state of the A, B and C phases of the driving motor. Therefore, its efficiency and stability are very good. Therefore, unlike the control of amplification motor, special power amplifier circuit is required. This kind of motor is generally permanent magnet type. The current generated by the driver changes in three phases a, B and C to control the rotation of the motor, so it is called AC servo motor; The control signal input by the driver can be pulse train or DC voltage signal (generally ± 10V), so it is also called DC brushless motor. Simple test comparison of the two motors: as long as the original DC error signal of the system is directly connected to the analog control input of the AC servo driver, the AC servo motor and its driver are used to replace the original differential power amplifier, motor amplifier and DC servo motor, while the control part and angle measuring element are unchanged, the output characteristics of the two schemes are simply compared.