Product Overview
The YASKAWA CIMR-AU4A0038A AA is a high-performance frequency converter designed to optimize energy consumption and enhance motor control precision. As part of YASKAWA’s advanced A1000 series, this drive is engineered to control the speed and torque of AC motors with great precision. It is typically mounted in control cabinets or integrated into complex automation systems, making it ideal for applications requiring high efficiency and adaptability.
For example, in a manufacturing plant, engineers replaced an outdated drive system with the YASKAWA CIMR-AU4A0038A AA to achieve precise speed control and significant energy savings. The drive’s ability to integrate seamlessly with existing PLC or DCS frameworks makes it a valuable asset for optimizing production efficiency.
Technical Specifications
Parameter Value
Product Model YASKAWA CIMR-AU4A0038A AA
Manufacturer YASKAWA
Product Type Variable Frequency Drive
Input Voltage 380-480V AC, 3-phase (-15% ~ +10%)
Output Current (Normal Duty) 38 A
Output Current (Heavy Duty) 31 A
Maximum Motor Power (Normal Duty) 25 HP
Maximum Motor Power (Heavy Duty) 20 HP
Output Frequency 0-400 Hz
Control Methods V/F, V/F with encoder, open-loop or closed-loop current vector
Motor Types Asynchronous (IM – induction with squirrel-cage rotor), Synchronous (IPM – internal permanent magnet, SPM – surface permanent magnet)
Ambient Temperature -10°C to +40°C
Protection Degree IP20
Global Certification CE, CSA, C-tick, RoHS, UL

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Key Features and Benefits
The YASKAWA CIMR-AU4A0038A AA stands out for its advanced control technology and energy-saving capabilities. It supports multiple control modes, including V/f control, vector control with and without encoder, and closed-loop current vector control, providing precise torque production and position control. The drive’s continuous auto-tuning feature compensates for changes in motor temperature, ensuring consistent operation over time.
Its high-frequency injection technology enables high-precision open-loop control of interior permanent magnet motors, expanding its application scope. The drive also features fast-acting current and voltage limiters to prevent unwanted shutdowns during periods of excessive demand.
The YASKAWA CIMR-AU4A0038A AA offers communication options for major industrial networks, facilitating high-speed control and monitoring while reducing installation complexity and cost. It also comes with DriveWorksEZ PLC, a powerful software development language through functional blocks, and a frontal USB port for easy PC connection.
Application Scenarios
The YASKAWA CIMR-AU4A0038A AA is widely used across various industries. In manufacturing facilities, it controls conveyor systems for precise speed regulation and energy efficiency. In HVAC systems, it regulates fan speeds for energy-efficient operation. In food processing lines, it provides accurate speed control to maintain product quality. In printing presses, it offers precise motion control to ensure high-quality prints.
Related Models
  • CIMR-AU4A0038FAA: A ruggedized variant with a higher temperature range, suitable for more demanding environmental conditions.
  • CIMR-AU4A0038UAA: A model with a different enclosure type (flange mount), suitable for specific installation requirements.
  • CIMR-AU4A0030A AA: An earlier version with lower power output, suitable for applications with lower power demands.
  • CIMR-AU4A0045A AA: An upgrade with higher power capabilities, providing more power for applications that require greater motor performance.
  • CIMR-AU4A0038A AA – EXT: A companion module that can be used in conjunction with the YASKAWA CIMR-AU4A0038A AA to expand its functionality.
Installation and Maintenance
When installing the YASKAWA CIMR-AU4A0038A AA, ensure proper grounding and environmental conditions are met. The drive can be mounted on a DIN rail or panel-mounted, depending on the application requirements. Regular maintenance includes checking the drive’s diagnostics, firmware updates, and environmental conditions. Firmware backups should be performed periodically to ensure system integrity. The drive’s event logs and trending data can be used for preventive maintenance, helping to identify potential issues before they become critical.
Product Warranty
The YASKAWA CIMR-AU4A0038A AA is backed by a one-year warranty and free replacement service provided by Hainan Jinlin Electromechanical Equipment Co., Ltd. Customers can contact Hainan Jinlin for warranty claims and receive support for pre-shipment testing, datasheet verification, and serial-number traceability. This comprehensive warranty ensures that customers have access to reliable support and service throughout the product’s lifecycle.
Company Introduction
Hainan Jinlin Electromechanical Equipment Co., Ltd. is a certified partner of industry leaders. We provide comprehensive pre-sale services to help you choose the right product. And with our one-year after-sale guarantee, you can have peace of mind. If you can’t find the desired model, please contact us via WhatsApp or email us