(1) In accordance with process requirements, production lines or individual machines may need to adjust the motor speed programmatically or as specified. For instance, the packaging machine's conveyor system operation adjusts the system conveyor speed based on different types of products. Variable frequency speed control not only simplifies the structure of the speed control system but also ensures accurate control and facilitates program control.
(2) Variable speed drives replace mechanical transmission. For instance, machine tools can eliminate complex gearboxes, as well as enhance accuracy and meet program control requirements. Aerial ground power supply 2, 36V aerial power supply 1, 400Hz variable frequency power supply 7, 115/200V power supply 2, 27V DC power supply 5, 400Hz power supply 12, aerial power supply.
(3) F uses variable frequency speed regulation instead of gate or baffle adjustment for flow, suitable for fans, pumps, compressors, etc. For example, the boiler's water pump, blower, and induced draft fan have implemented variable frequency speed regulation control. This not only eliminates the need for servo amplifiers, electric actuators, electric operators, and water valves (or baffle plates), but also enables the entire boiler control system to achieve rapid dynamic response, high control accuracy, and stability.
