In recent years, electric actuators have achieved rapid development, and some domestic and foreign manufacturers have successively introduced intelligent electric actuators with fieldbus communication protocols. The new intelligent electric actuator uses microcomputer and fieldbus communication technology to integrate the servo amplifier and the actuator. It not only realizes the functions required by multiple control technologies such as two-way communication, PID adjustment, online automatic calibration, self-correction and self-diagnosis, but also Additional functions such as stroke protection, over-torque protection, motor overheating protection, power-off signal protection, output on-site valve position indication and fault alarm are added. It can perform on-site operation or remote operation, complete manual operation and switch between manual and automatic without disturbance.
