With the rapid development of the automation industry, the conveyor belt has become the necessary transportation equipment for most automated conveying machinery.
When the conveyor is started, the current of the motor will be 5-6 times higher than the rated value, which will not only affect the service life of the motor but also consume more power. The system will leave a certain margin on the motor selection during design. The speed of the motor is fixed, but in actual use, sometimes it is necessary to run at a lower or higher speed, so it is very necessary to carry out frequency conversion. SAJ frequency converter is a kind of equipment that can realize soft start of motor, change the working frequency of conveyor belt to achieve energy-saving speed regulation, and provide protection functions such as over-current, over-voltage and overload to the equipment.