Aerotech BAI20-320
Product Name: Aerotech BAI20-320 single-axis BA Intellidrive servo drive
Product Overview: BAI20-320 is a digital servo amplifier for brushless rotary or linear servo motors. It provides closed-loop current, speed and position control in precision automation systems.
Detailed content
Technical Specifications: DC bus voltage is 320 V DC. Continuous or peak output current rating is 20 A according to the drive mode and cooling condition. Communication supports EtherCAT, CANopen and Modbus. Feedback supports incremental encoders, absolute encoders, Hall sensors and resolver interfaces where fitted. Protection rating is IP20. Operating ambient temperature is -10 °C to 50 °C. Weight is approximately 1.2 kg.
Functional Features: The drive provides high-bandwidth tuning, electronic gearing, multi-axis synchronization, overload protection, overvoltage protection, overtemperature protection and integrated diagnostic software. Analog inputs, digital inputs, digital outputs and analog outputs are provided for command and status interfacing.
Performance Parameters: The control loop delivers fast acceleration, low overshoot and stable settling for high-dynamic positioning. Bus communication, encoder feedback rate and PWM switching frequency are configured in Aerotech motion software.
Material Composition: The housing uses metal alloy for heat dissipation. Internal assemblies include IGBT or MOSFET power stages, control PCB, encoder interface circuits, EMC filters and industrial connectors.
Structural Characteristics: The unit has a rectangular cabinet-mount body with front power terminals, motor terminals, feedback connectors, communication ports and status LEDs. It supports DIN-rail or panel mounting according to the enclosure layout.
Working Principle: The controller sends position, speed or torque commands. The drive compares command values with encoder or resolver feedback, calculates error through digital control algorithms, and switches the DC bus to deliver regulated current to the motor windings.
Installation Requirements: Mount inside a control cabinet with adequate ventilation clearance. Connect protective earth first, then DC bus, motor phases and shielded feedback cables. Separate power and signal routing to meet EMC requirements.
Usage Precautions: Operate only within the 320 V DC bus and 20 A current rating. Complete servo tuning with the actual load before production. Do not open the housing under power and do not bypass thermal or overcurrent protection.












