In industrial and commercial applications, AC frequency converters are commonly used to control physical quantities such as acceleration, flow, pressure, speed, temperature, tension, and torque.
Cooperating with the load of the constant frequency starting motor, it has a high starting torque during startup, and the current surge can reach eight times the full load current. If used in conjunction with a frequency converter, starting the frequency converter will slowly accelerate the motor to a constant speed, reducing mechanical and electronic stress, reducing maintenance and repair costs, and extending the life of the motor and equipment.
Frequency converters can also allow motors to operate in a pre planned manner, further reducing mechanical and electronic stresses. For example, when a frequency converter is started, the speed will continuously change, while the acceleration will have discontinuous changes. In the application of conveyor belts, it is possible to cooperate with the function of the S-curve to continuously change the acceleration during acceleration and deceleration, making the acceleration and deceleration process smoother and reducing the back clearance of the conveyor belt during acceleration and deceleration