Emerson SP4402 High-performance General-purpose AC Frequency Converter Module

SP4402 is a high-performance general-purpose AC drive module under Emerson's Unidrive SP series. The following is a detailed introduction:

• Origin: Made in the United States.

• Operating Temperature Range: 0°C to 60°C.

• Humidity Requirement: 5% to 95% non-condensing.

• Voltage Input: Supports 0–5V and 0–10V.

• Current Input: Supports 0–20mA and 4–20mA.

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1. Universal Motor Control: Capable of controlling various motor types, including induction motors, synchronous motors, and permanent magnet motors. This flexibility enables it to provide adaptable drive solutions for different industrial scenarios, from simple machinery to complex automation systems, ensuring compatibility with corresponding motors and meeting diverse production process requirements.

2. Precise Control Algorithms: Integrates sensorless vector control (SVC) and flux vector control (FVC) technologies. These advanced algorithms enable precise speed, torque, and position control, ensuring smooth and dynamic motor operation under varying load conditions, which helps improve production process accuracy and product quality.

3. Energy-Efficient Features: Equipped with energy-saving functions such as regenerative braking. During motor deceleration or braking, excess energy can be converted into usable power and fed back to the grid or other devices, reducing overall system energy consumption, enhancing energy efficiency, and helping enterprises save operating costs—particularly suitable for applications with frequent starts/stops or significant load variations.

4. Rich Communication Interfaces: Supports multiple communication protocols, including Ethernet/IP, Modbus RTU, CANopen, and Profibus. These protocols facilitate seamless integration with existing factory automation and control systems, enabling remote monitoring and diagnostics. Operators can remotely access drive status information, configure parameters, and quickly troubleshoot faults from the control room, improving maintenance efficiency.

5. Wide Voltage and Frequency Range: Operates within a voltage range of 380V to 690V AC and a frequency range of 47Hz to 63Hz, adapting to grid conditions in different regions and meeting the operational requirements of various industrial equipment. This makes it suitable for global applications requiring robust power solutions, offering strong versatility and adaptability.

6. High Power Output Capacity: Delivers up to 1600kVA of output power, capable of driving high-power motors to meet the power demands of large machinery or complex industrial systems. It is applicable to the control of equipment such as large fans, pumps, and compressors.

7. Excellent Environmental Adaptability: Operates in a temperature range of -10°C to 40°C (or 0°C to 60°C) with a humidity requirement of 5% to 95% non-condensing. Features an IP20 protection rating for dust resistance, ensuring stable operation in harsh industrial environments across various conditions.

8. High-Precision Speed Regulation: Achieves speed regulation accuracy of ±1%, meeting the requirements of production processes demanding high precision, such as textile and printing industries, ensuring process stability and product quality consistency.

9. High Inverter Efficiency: Boasts a maximum inverter efficiency of 97%, effectively reducing energy losses during conversion, further enhancing system energy efficiency, minimizing heat generation, and extending equipment service life.

1. Industrial Manufacturing: Used in industries such as textiles, printing, and packaging to control motor speeds, ensuring precision and stability in production processes. For example, in textile production, it precisely controls the rotational speeds of spinning and weaving machines to ensure uniform yarn thickness and consistent fabric texture. In machining, it drives spindle and feed motors of various machine tools, adjusting speed and torque according to processing requirements to improve accuracy and efficiency.

2. Energy Sector: Applied in power plants to control equipment like fans and pumps. By adjusting fan speeds, it optimizes boiler combustion efficiency; controlling pump speeds enables rational cooling water circulation, reducing energy consumption. In renewable energy, such as wind power, it controls pitch and yaw system motors to adjust blade angles and nacelle direction based on wind speed and direction, enhancing wind energy utilization.

3. Metallurgical Industry: Used in steel plants and non-ferrous metal processing facilities to drive equipment like rolling mills and cranes. During steel rolling, it precisely controls roll motor speed and torque to ensure dimensional accuracy and surface quality of steel products. For cranes, it enables smooth start/stop and speed regulation, improving operational safety and efficiency.

   

   
   

4. Chemical Industry: Commonly employed in pumps, compressors, and other equipment in chemical production. For instance, in centrifugal pump systems, it adjusts pump speed in real-time based on process requirements to control fluid flow, enabling precise and energy-efficient operation. For compressors, it optimizes operational status to ensure stable gas compression, reducing energy consumption and maintenance costs.

5. Municipal and Building Sectors: In urban water supply systems, it adjusts pump motor speeds according to water demand to achieve constant pressure water supply, improving water quality and energy efficiency. In wastewater treatment plants, it controls aeration fans and sludge pumps, adjusting parameters based on water quality and treatment processes to enhance efficiency. Additionally, in building HVAC systems, it controls compressors and fans for energy-efficient operation and comfortable indoor environments.

6. Transportation: Shows potential in scenarios such as electric buses and EV charging stations. In electric buses, it controls drive motors to enable efficient energy conversion and power output, enhancing vehicle range and performance. In charging stations, it manages power supply to adjust output voltage and current according to vehicle charging needs, ensuring safe and efficient charging.