SSM009L2SN

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SSM009L2SN is a type of variable frequency drive (VFD) manufactured by Schneider Electric and extensively used in industries and in various applications to control and adjust the speed of a motor or other mechanical or electromechanical system. In this paper, the application field and working principle of SSM009L2SN shall be discussed.

Application Field

Due to its robust design, reliable performance, high control accuracy and comprehensive solution, SSM009L2SN is widely installed in the following industries and applications:

• Textile machinery applications
• Food packaging industry
• Industrial production line control
• Pump and fan speed control and environmental ventilation control
• Conveyor belt or winch control
• Driving the mechanical parts of textile machines, industrial presses, welding machines, printing machines, machines tools, etc.

Working Principle

The SSM009L2SN is a micro-inverter, which uses a microprocessor as the core control circuit to control the speed of the AC motor by modulating the voltage of the motor. The motor is connected to the VFD and supplied with frequency and voltage that varies depending on the user\'s requirement. The VFD analyzes the input signal and then regulates the frequency and voltage of the motor through its built-in inverter circuit.

This is accomplished through a Pulse Width Modulation (PWM) technique. In this technique, the alternating currents of an AC wave cycle are divided into a number of parts. Each part is then controlled by a digital switch, which can be switched on or off. When the switch is on, the current is passed through the motor and when it is off, the current is interrupted. By varying the periods in which the switch is on and off, the frequency and voltage of the current that reaches to the motor can be controlled. This enables the SSM009L2SN to run the motor at the exact speed that is required by the application.

SSM009L2SN also offers a number of advanced features including built-in PID controllers and torque compensation, and parameter setting and monitoring through a digital monitor or a computer interface. These features make it suitable for use in various industrial applications.

In conclusion, thanks to its robust design, reliable performance and excellent control accuracy, SSM009L2SN is widely used in various industries and applications to control the speed of the motor. It offers a comprehensive solution for speed control and comes with a number of advanced features.

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