Product Overview

The Yaskawa CIMR-AU4A0018FAA is an A1000 high-performance vector variable frequency drive for 380-480 VAC three-phase industrial power systems. It provides a Normal Duty rating of 10 HP at 17.5 A and a Heavy Duty rating of 7.5 to 10 HP at 14.8 A. The applicable duty rating must be selected according to the motor nameplate current, starting torque, acceleration profile, load inertia and operating cycle.

Unlike a basic general-purpose VFD, the A1000 platform supports both open-loop and closed-loop control configurations. With an applicable feedback option and compatible encoder, it can be used in machinery requiring improved speed regulation, torque response and low-speed performance. This makes the CIMR-AU4A0018FAA suitable for conveyors, mixers, winders, extruders, machine tools, process equipment and coordinated production machinery.

Main Features

• 380-480 VAC three-phase input voltage class
• 10 HP and 17.5 A Normal Duty output
• 7.5 to 10 HP and 14.8 A Heavy Duty output
• Open and Closed Loop Current Vector control
• Open and Closed Loop V/f control
• Control support for induction, surface PM and interior PM motors
• Optional incremental, absolute or resolver feedback capability
• Built-in Modbus RTU communication over RS-422/485
• Built-in braking transistor within this power range
• Standard IP20/NEMA 1 enclosure configuration

Technical Specifications

Compatible System and Applications

The CIMR-AU4A0018FAA can be operated without encoder feedback for conventional open-loop applications or combined with an appropriate feedback card for closed-loop speed and torque control. Encoder type, signal format, power supply and feedback option must be matched correctly. An encoder cannot be connected directly without confirming the required A1000 option interface.

Normal Duty is generally applicable to pumps, fans and moderate-overload systems. Heavy Duty should be evaluated for loaded conveyors, mixers, extruders and machinery with frequent torque changes. For continuous low-speed operation, confirm motor cooling because a standard self-cooled motor may not dissipate sufficient heat at reduced speed.

Maintenance and Replacement Notes

Before replacing the drive, verify the complete CIMR-AU4A0018FAA model, specification number, software revision and installed option cards. Back up the parameters and document the power wiring, control terminals, encoder wiring, communication network and braking resistor. Rating-dependent parameters such as motor current, electronic overload protection and tuning data must be reviewed after transfer.

If migrating to GA800, use the official A1000-to-GA800 transition process. Parameter conversion can reduce setup time, but terminal logic, feedback options, safety wiring, network communication, braking hardware and machine-specific functions must be verified separately.

Related Models

Related models include CIMR-AU4A0011FAA, CIMR-AU4A0023FAA, CIMR-AU4A0031FAA and CIMR-AU4A0038FAA. Select the model according to motor current and required overload capacity rather than nominal horsepower alone.

Inquiry and Supply Notes

Please provide the complete drive nameplate, motor nameplate, feedback option, encoder type, communication protocol, braking configuration and required quantity. Final compatibility should be confirmed against the installed machine before ordering.