Advantages of CM60HST closed-loop stepper motor

CM60HST closed-loop stepper motor is a product between stepper motor and AC servo motor, similar to SUV, with both comfort and certain off-road capability. According to different control methods, CM60HST closed-loop stepper motor is divided into two types: stepper closed-loop system and servo closed-loop system.

Based on the traditional stepper motor, the stepper closed-loop stepper motor system adds a low-precision encoder, and adds an encoder reading circuit to the driver for position correction. Its working principle is to compare the command position and feedback position when stopped, and the motor speed and output torque are the same as those of ordinary stepper motors.

The servo closed-loop stepper motor system adopts servo motor control technology to adjust the position, speed and output torque of the stepper motor in real time. Through strict servo control principles, PID adjustment of position deviation, current and speed is performed, so that the speed and output torque of the motor are better than those of traditional stepper motors.

The first advantage of CM60HST closed-loop stepper motor is its high-speed performance. Traditional stepper motors use constant current control, which results in a long current control cycle and a speed generally lower than 1000rpm. The CM60HST closed-loop stepper motor uses the servo drive principle. Through vector control of current, the maximum speed can reach 3000rpm, and its output torque is better than that of ordinary stepper motors in the speed range of 0~1500rpm. Therefore, when the stepper motor needs a higher speed, the closed-loop stepper motor becomes the only choice.

The second advantage is high precision. The accuracy of traditional stepper motors depends on the number of phases and the degree of subdivision of the driver. More phases and higher subdivision can bring better accuracy. However, due to the limitation of current control, the improvement of accuracy is limited. At high subdivision, there is only resolution but no actual improvement in accuracy. The CM60HST closed-loop stepper motor not only combines the advantages of stepper motors and servo motors, but also has excellent high-speed and high-precision performance. It adopts the servo drive principle, with a maximum speed of 3000rpm, especially in the torque range of 0~1500rpm, which is better than traditional stepper motors. At the same time, its accuracy is determined by the high-precision encoder, and the encoder provided by Simu Motor has reached the standard accuracy of servo motors. For application scenarios that pursue higher performance and precision, the CM60HST closed-loop stepper motor provided by Simu Motor is an ideal choice.