Functional difference
Inverter:
Inverter is an electronic device for controlling motor speed and torque. Its main function is to convert the fixed frequency and amplitude of the power supply to the adjustable frequency and adjustable amount of amplitude required for the power system. By adjusting the output frequency and voltage, the inverter can achieve the speed of the motor, thereby meeting different industrial application needs.
PLC:
PLC is a computer controller dedicated to the industrial control system. It is based on digital operations and can control and monitor various machinery, electrical, hydraulic and pneumatic equipment by programming. The PLC has achieved automated production processes by receiving and processing the input signal and generating corresponding output signals.
Work principle
Inverter:
The inverter controls the speed of the motor by adjusting the output frequency and voltage. When the motor receives the frequency conversion power supply from the inverter, its speed can be adjusted in real time according to the control signal of the inverter. The inverter can detect the load conditions of the motor in real time, and automatically adjust the output frequency and voltage according to the load requirements.
PLC:
PLC receives the input signal of the sensor or the user's operation through the input module, and the internal logical processing and operation of the operation, and then generate a corresponding control signal through the output module to achieve the control of the performer. PLC can realize functions such as timing control, sequential control, logical control, and counting control. Its internal programming language is usually based on logical or graphical programming, and is programmed by touch screen or computer interface.
Different application field
Inverter:
The inverter is widely used in the field of motor control, such as fan, pump, air conditioner, conveyor, etc. Through accurate variable frequency control, electricity can be saved, reducing noise, and improving motor operation efficiency. The inverter can also be applied to compressors, machine tools and various industrial production equipment, to achieve variable speeds, adjust torque and other functions, and play an important role in improving the stability and accuracy of equipment.
PLC:
PLC is widely used in the field of industrial automation control, such as production lines, assembly lines, extrusion machines, packaging machines, etc. Through programming, PLC can control the control and monitoring of the entire industrial automation production process to ensure the stability, safety and efficiency of the production process. PLC can also be used in other fields such as building automation, traffic signal lights, and amusement equipment.
Applicable scene differences
Inverter:
The inverter is usually suitable for scenes that need to be running, such as regulators, adjustable water pumps, etc. In these scenarios, accurate speed adjustment needs to be performed according to actual needs to meet different work requirements.
PLC:
PLC is suitable for scenarios that require a large number of signals, such as industrial automated production lines, squeezing machines, etc. In these scenarios, multiple actuators need to be accurately controlled and coordinated to complete complex industrial automation tasks.
In summary, there are obvious differences in inverter and PLC in terms of function, working principles, application areas, and applicable scenarios. The inverter is mainly used for the control of the motor speed and torque, and the PLC is used to control various machinery, electrical, hydraulic and pneumatic equipment. The inverter is suitable for scenes that need to be running, and PLC is suitable for scenarios that need to be processed and controlled by a large number of signals. Through in -depth understanding of the differences and application areas of inverters and PLC, we can better choose and apply the two devices to optimize and improve industrial automation control.
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