YASKAWA A1000 series AC frequency converter

YASKAWA A1000 series AC frequency converter

Product Overview

（1） Brand and positioning

The Yaskawa A1000 series AC frequency converter is the next generation high-performance vector control flagship product launched by Yaskawa Electric (YASKAWA), inheriting the brand's deep accumulation in the field of drive technology. It aims to meet the high-precision, high reliability, and high economic requirements of motor drive in the industrial field through top-notch vector control technology, comprehensive functional configuration, and efficient energy-saving design. It is a versatile drive solution for general industrial scenarios and special application scenarios.

（2） Product specification matrix

Voltage and power coverage

200V level: power range 0.4kW-110kW, compatible with three-phase 200-240Vac power supply, core model prefix CIMR-AA2A.

400V level: power range 0.4kW-630kW, compatible with three-phase 380-480Vac power supply, core model prefix CIMR-AA4A.

Core Certification and Compliance

Quality and Environmental Certification: Passed ISO9001 Quality Management System and ISO14001 Environmental Management System certifications.

Environmental and safety compliance: The entire series complies with the EU RoHS directive, and some models have passed CE and UL certification (some model certifications are pending).

Core Technology and Performance Parameters

（1） Control technology system

Motor compatibility

Supporting motor types: induction motor, built-in permanent magnet synchronous motor (IPM), surface permanent magnet synchronous motor (SPM). Motor type switching can be achieved through a single parameter without the need for additional hardware modifications.

Special adaptation: PM motor compatibility support is being developed for models of 450kW and above. Currently, various low and medium power synchronous motors can be adapted through parameter optimization.

Classification and Performance of Control Modes

|Control mode | Applicable motor | Core performance indicators | Typical application scenarios|

|V/f control | Induction motor | 150% torque/3Hz, speed range 1:40 | General fan and pump loads|

|Open loop vector control (induction motor) | Induction motor | 200% torque/0.3Hz, speed range 1:200 | Conveyor, compressor|

|Closed loop vector control (induction motor) | Induction motor (with PG) | 200% torque/0r/min, speed range 1:1500 | Machine tool spindle, high-precision transmission|

|Open loop vector control (PM motor) | IPM/SPM motor | 200% torque/0r/min, speed range 1:100 | Energy saving fan, precision machinery|

|Closed loop vector control (PM motor) | IPM/SPM motor (with PG) | 200% torque/0r/min, speed range 1:1500 | High end CNC machine tool, positioning system|

（2） Key Function Analysis

Encoder free control technology

Core principle: By utilizing the electrical salient pole characteristics of IPM motors, speed, steering, and rotor position can be detected without the need for a motor encoder, achieving high-precision positioning control.

Functional value: Reduce encoder hardware costs and installation complexity, lower failure points, and adapt to applications with limited space or harsh environments.

Supporting tools: Through DriveWorksEZ visual programming, it is easy to create custom position control sequences without the need for additional controllers.

Braking and Parking Technology

Built in braking capability: 30kW and below models come standard with a braking transistor, which can be directly connected to an external braking resistor to achieve strong braking; Models above 30kW can expand the braking unit through the tab.

Braking mode: Supports overexcitation deceleration (achieving quick stop without braking resistance), high slip braking (braking torque of about 40%), and DC injection braking (auxiliary braking during start/stop phases).

Power failure protection: KEB (Keep Energy Braking) function can use the regenerative energy of the motor to achieve controllable shutdown within 2 seconds after power failure, avoiding safety risks caused by free sliding of the load.

Self tuning and optimization functions

Motor self-tuning: supports rotation self-tuning (high-precision matching of motor parameters), static self-tuning (used when the motor cannot be disconnected from the load), and wire resistance self-tuning (recalibrated after cable length changes).

Load self-tuning: Inertial self-tuning optimizes deceleration performance, ASR gain self-tuning automatically matches frequency reference to ensure stable operation under different loads.

Energy saving self-tuning: Real time optimization of motor voltage and load matching, always maintaining the highest operating efficiency.

Energy saving control technology

Induction motor energy saving: dynamically adjust the output voltage through Energy Saving control, automatically optimize according to speed and load, and reduce no-load losses.

Energy saving synchronous motor: Paired with the EMR1 series ultra efficient synchronous motor, the efficiency is improved by 8.2% -13% compared to traditional induction motors, and the application effect of fans/pumps is particularly significant.

Harmonic suppression: Models of 22kW and above are equipped with built-in DC reactors, reducing the harmonic distortion rate of the power grid from 88% to 40% and minimizing interference with the power grid.