SERVOSTAR-310 两相伺服电动机的电源断开，电动机停止转动

Description

SERVOSTAR-310 两相伺服电动机的电源断开，电动机停止转动

伺服放大器的作用是将多个输入信号与反馈信号进行综合并加以放大，SERVOSTAR-310根据综合信号极性的不同，输出相应的信号控制伺服电机正转或反转。当输入信号和反馈信号相平衡时，伺服电机停止转动，执行机构输出轴便稳定在一定位置上。

伺服放大器主要由前置磁放大器、触发器、晶闸管主回路和电源等部分组成。其中，SERVOSTAR-310前置磁放大器把三个输入信号和一个反馈信号综合为偏差信号，并放大为电压信号输出；此输出电压同时经触发器转换成触发脉冲去控制晶闸管主回路的晶闸管导通，从而将交流220V电源加到两相伺服电机绕组上，驱动两相伺服电动机转动。当输入信号和与位置反馈电流If相平衡时，前置磁放大器的输出电压约为0，两触发器均无触发脉冲输出，主回路中的晶闸管阻断，两相伺服电动机的电源断开，电动机停止转动。

伺服放大器是一种用于放大电信号的电子设备，SERVOSTAR-310的工作原理是通过负反馈来控制放大器的增益，从而提高放大器的性能和稳定性。

伺服放大器的基本原理是将输出信号与输入信号进行比较，并根据比较结果来调整放大器的增益，使输出信号更加稳定和准确。这种负反馈的控制方式可以有效地抑制放大器的非线性失真、温度漂移和噪声等问题，提高放大器的线性度、频率响应和信噪比。

伺服放大器通常由三个主要部分组成：SERVOSTAR-310输入级、放大级和输出级。输入级负责接收输入信号，并将其放大到适当的电平。放大级负责进一步放大信号，并根据负反馈控制电路的要求来调整增益。输出级负责将放大后的信号输出到负载上。

在伺服放大器中，负反馈控制电路起着至关重要的作用。它通过将一部分输出信号与输入信号进行比较，并将比较结果反馈给放大级，来调整放大器的增益。具体来说，负反馈控制电路会将输出信号与输入信号进行差分运算，得到一个误差信号。然后，根据误差信号的大小和方向，负反馈控制电路会调整放大器的增益，使误差信号趋近于零。这样，输出信号就能够更加准确地跟随输入信号的变化。

伺服放大器广泛应用于各种需要高性能和稳定性的电子设备中，如音频放大器、功率放大器、运算放大器等。在伺服控制系统中，伺服放大器起到非常重要的作用，它负责放大控制信号，将其转换成足够大的电流或电压，驱动伺服电机实现精准运动。此外，伺服放大器还要实现反馈信号的比较和误差放大，以实现闭环控制。

总的来说，伺服放大器相当于一个三位式无触点继电器，并具有很大的功率放大能力。

SERVOSTAR-310 两相伺服电动机的电源断开，电动机停止转动

The function of the servo amplifier is to synthesize and amplify multiple input signals and feedback signals, and SERVOSTAR-310 outputs corresponding signals to control the servo motor forward or reverse according to the polarity of the integrated signal. When the input signal and the feedback signal are balanced, the servo motor stops rotating, and the output shaft of the actuator is stable in a certain position.

Servo amplifier is mainly composed of pre-magnetic amplifier, trigger, main circuit of thyristor and power supply. The SERVOSTAR-310 preamplifier synthesizes three input signals and one feedback signal into a deviation signal and amplifies the output voltage signal. At the same time, the output voltage is converted into a trigger pulse by a trigger to control the thyristor conduction of the main circuit of the thyristor, so that the AC 220V power supply is added to the winding of the two-phase servo motor to drive the rotation of the two-phase servo motor. When the input signal is balanced with the position feedback current If, the output voltage of the preamplifier is about 0, there is no trigger pulse output of the two triggers, the thyristor in the main loop is blocked, the power supply of the two-phase servo motor is disconnected, and the motor stops rotating.

SERVOSTAR-310 is an electronic device used to amplify electrical signals, and the ServoSTAR-310 works by controlling the gain of the amplifier through negative feedback, thereby improving the performance and stability of the amplifier.

The basic principle of servo amplifier is to compare the output signal with the input signal, and adjust the gain of the amplifier according to the comparison results, so that the output signal is more stable and accurate. This negative feedback control method can effectively suppress the nonlinear distortion, temperature drift and noise of the amplifier, and improve the linearity, frequency response and signal-to-noise ratio of the amplifier.

Servo amplifiers usually consist of three main parts: the SERVOSTAR-310 input stage, the amplifier stage, and the output stage. The input stage is responsible for receiving the input signal and amplifying it to the appropriate level. The amplifier stage is responsible for further amplifying the signal and adjusting the gain according to the requirements of the negative feedback control circuit. The output stage outputs the amplified signal to the load.

In the servo amplifier, the negative feedback control circuit plays a crucial role. It adjusts the gain of the amplifier by comparing a part of the output signal with the input signal and feeding the comparison result back to the amplifier stage. Specifically, the negative feedback control circuit will make a difference between the output signal and the input signal to obtain an error signal. Then, depending on the size and direction of the error signal, the negative feedback control circuit adjusts the gain of the amplifier so that the error signal approaches zero. In this way, the output signal can more accurately follow the changes in the input signal.

Servo amplifiers are widely used in a variety of electronic devices requiring high performance and stability, such as audio amplifiers, power amplifiers, operational amplifiers, etc. In the servo control system, the servo amplifier plays a very important role, which is responsible for amplifying the control signal and converting it into a large enough current or voltage to drive the servo motor to achieve accurate movement. In addition, the servo amplifier also realizes the comparison and error amplification of feedback signals to achieve closed-loop control.

In general, the servo amplifier is equivalent to a three-position contactless relay and has a large power amplification capability.