E-L3845D1 Datasheet/PDFThe E-L3845D1 is an all-in-one, 3-phase, hardened industrial frequency inverter produced by Unicon Automation. It produces adjustable AC output voltage and power stage frequency modulation in a wide range of 0.1 – 500Hz. It can be used to drive both single and three phase AC induction motors with efficiency and robustness, making it suitable for a variety of different industrial applications.
Application Field
The E-L3845D1 is mainly used for 1-phase or 3-phase AC motor applications, such as for controlling cooling towers, fans, pumps, compressors, and other motor driven equipment.
It is also suitable for controlling the speed of different types of machinery, such as conveyors and saws. Because the inverter features a wide input voltage range, it is suitable for applications requiring high efficiency and a low level of acoustic and electrical noise.
The built-in current transformer enables the E-L3845D1 to accurately measure the output power of the motor, ensuring optimal motor performance and reliable operation.
The inverter is equipped with various protection functions, such as over-voltage, overload, short-circuit, and over-temperature, which makes it suitable for many hazardous industrial environments.
Working Principle
The E-L3845D1 converts DC voltage into AC voltage of adjustable amplitude and frequency, by using closed-loop microprocessor control technology. This allows the user to set the required output voltage and frequency parameters, either directly on the inverter, or through its communication port.
The inverter receives DC power from the input power terminal, and passes it through a three-stage high-frequency switching circuit. This high-frequency switching circuit is controlled by a microprocessor, which determines the required parameters for the AC output voltage.
The inverter then converts the DC power into AC power with adjustable frequency and voltage, which is then output to the output power terminals. The output power is further regulated and controlled by the control circuit, with feedback from the current transformer.
The E-L3845D1 is a fully featured frequency inverter, allowing users to easily set parameters and obtain motor data for improved motor performance and reliability.