YASKAWA CIMR - AU4A0038A AA is a remarkable variable - speed drive

Technical Specifications

• Input Voltage: It is designed to operate with a three - phase input voltage ranging from 380 VAC to 480 VAC (which can also accommodate voltages like 400 VAC, 415 VAC, 440 VAC within this range). This wide input voltage tolerance makes it suitable for use in various regions and power systems.
• Rated Output Current: The drive has a rated output current of 38 A under normal duty conditions. This current capacity enables it to efficiently power motors with a significant load, ensuring stable operation even in high - demand applications.
• Rated Active Power: With a rated active power of 25 hp (under normal duty), the CIMR - AU4A0038A AA is well - equipped to drive motors of substantial size. This power rating makes it ideal for applications such as large - scale fans, pumps, and various industrial machinery.
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• Frequency Range: The output frequency can be adjusted from 0.01 Hz to 400 Hz. This wide frequency range provides great flexibility in controlling the speed of the connected motors. For example, in applications where precise speed control is required, such as in textile manufacturing or certain conveyor systems, the ability to set frequencies with such precision is invaluable.
• Communication Capabilities: It comes with built - in RS - 422 + RS - 485 communication interfaces. These interfaces allow for seamless integration with other industrial control systems, such as programmable logic controllers (PLCs). This enables remote monitoring and control of the drive, enhancing the overall automation and efficiency of industrial processes.
• Enclosure and Cooling: The drive typically has an IP00 enclosure rating, which means it is suitable for installation in a controlled environment, such as inside a control cabinet. It utilizes forced ventilation (fan - cooling) with standard heatsink fins to dissipate the heat generated during operation. This cooling method ensures that the drive can maintain optimal operating temperatures even during continuous and heavy - load operation.

Key Features and Benefits

• Advanced Control Modes: The A1000 series, including the CIMR - AU4A0038A AA, offers both closed and open - loop vector control. Closed - loop vector control provides outstanding regulation, precise torque production, and excellent position control capabilities. This is crucial in applications where accurate positioning of machinery components is required, like in robotic arms or automated manufacturing equipment. Open - loop vector control, on the other hand, is suitable for applications where sensor - based feedback is not necessary, yet still requires good torque control at various speeds.
• Continuous Auto - Tuning: The drive features continuous auto - tuning functionality. This means that it can constantly adjust and optimize its performance by compensating for changes in motor temperature. As the temperature of the motor can affect its electrical characteristics and performance, this auto - tuning feature ensures that the drive - motor combination operates at peak efficiency at all times, reducing energy consumption and minimizing wear and tear on the equipment.
• High - Frequency Injection: High - frequency injection is another notable feature. It enables high - precision open - loop control of interior permanent magnet motors. This is particularly useful in applications where the use of sensors for motor control is not practical or cost - effective, but still requires accurate control of the motor's speed and torque.
• Fast - Acting Limiters: The CIMR - AU4A0038A AA is equipped with fast - acting current and voltage limiters. These limiters play a vital role in ensuring continuous drive operation during periods of excessive demand. For instance, when a motor experiences a sudden load increase, the current limiter prevents the drive from overloading and shutting down, while the voltage limiter protects the drive from voltage fluctuations that could potentially damage the components.
• Communication Options: In addition to the standard RS - 422 + RS - 485 interfaces, the drive offers communication options for all major industrial networks. This allows for high - speed control and monitoring, significantly reducing installation costs. By being able to communicate with other devices in the industrial network, the drive can be integrated into a larger, more complex automation system, enabling centralized control and data collection.
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• Software and Configuration Tools: YASKAWA provides DriveWizard computer software and application sets for easy configuration of the drive. This software simplifies the process of setting up the drive's parameters, such as acceleration and deceleration times, speed limits, and torque settings. Additionally, the drive has an auxiliary control power unit that maximizes production time and efficiency. It can maintain network communication even when the main power is removed, ensuring that critical data is not lost and that the drive can be quickly restored to operation once power is restored.
• Safety Features: The drive has an embedded safe torque off feature. This is extremely important in applications that require occasional intervention. For example, in a manufacturing process where workers need to perform maintenance on the machinery connected to the drive, the safe torque off feature can be activated to prevent accidental movement of the equipment, minimizing downtime and ensuring the safety of the personnel.

Applications

• Industrial Manufacturing: In manufacturing plants, the CIMR - AU4A0038A AA can be used to control the speed of motors in various production lines. For example, in a metal - working factory, it can power the motors of lathes, milling machines, and grinders, allowing for precise control of the machining speed based on the material being processed and the desired finish. In a food and beverage production facility, it can control the motors of conveyors, pumps for liquid ingredients, and mixers, ensuring smooth and efficient operation of the production process.
• HVAC Systems: In heating, ventilation, and air - conditioning (HVAC) systems, the drive can be used to control the speed of fans and pumps. By adjusting the speed of the fans, the amount of air circulation can be optimized, leading to better energy efficiency and improved indoor air quality. For pumps in chilled water or hot water systems, the drive can regulate the flow rate based on the actual heating or cooling demand, reducing energy consumption and wear on the pumps.
• Water and Wastewater Treatment: In water treatment plants, the drive can control the motors of pumps that transfer water, chemicals, and sludge. Precise speed control of these pumps is essential for maintaining the correct flow rates and pressures in the treatment processes. In wastewater treatment, it can also be used to control the speed of aerators, which play a crucial role in the biological treatment of wastewater by providing oxygen to the microorganisms.