Atlas Copco 4230 3012 80 Type BSM 2590D R Servo Motor – High-Torque Brushless AC Motor

The Atlas Copco 4230 3012 80 is a brushless AC servo motor designated as type BSM 2590D R. This motor is engineered for high-performance motion control applications that demand rapid acceleration, precise speed regulation, and sustained torque output. It is part of the BSM series, known for robust construction and compact dimensions, making it suitable for integration into servo-driven machinery.

Motor Design and Construction

The BSM 2590D R features a permanent-magnet synchronous rotor and a stator with concentrated windings, providing high efficiency and low cogging torque. The housing is made from aluminium alloy for good heat dissipation, with cooling fins on the external surface. The motor is fully enclosed and sealed to protect against environmental contaminants. The output shaft is keyed and includes a threaded hole for mounting couplings or pulleys.

Performance Specifications

This motor offers a rated torque and speed that are well-suited for driving mechanical loads in automation systems. The continuous stall torque is specified at a given current, with peak torque available for short durations. The rated speed is optimised for typical industrial applications, and the motor can operate over a wide speed range with constant torque up to base speed and constant power above it. The insulation class is F, and the motor is thermally protected.

Feedback and Sensor Integration

An integral encoder or resolver is mounted on the rear shaft, providing high-resolution position and velocity feedback. The standard feedback device is compatible with most servo drives. The motor may also include thermal sensors (PTC or thermistor) to protect against overtemperature. The feedback connector is positioned for easy access and cable routing.

Electrical Connections

The motor is equipped with a power connector for the motor phases and a separate signal connector for the feedback device. The pin assignments are clearly marked, and the connectors are designed for secure locking. Cable lengths should be kept within recommended limits to avoid signal degradation. Proper shielding and grounding are essential for noise immunity.

Installation and Mounting

The motor is designed for foot or flange mounting, with metric bolt holes that meet industry standards. Alignment with the driven load must be accurate to prevent shaft stress and premature bearing failure. The motor should be installed in a well-ventilated location, and care should be taken not to obstruct the cooling fins. Flexible couplings are recommended to accommodate slight misalignments.

Application Areas

The BSM 2590D R is used in applications such as CNC machine tools, robotic arms, packaging machines, textile equipment, and printing presses. Its high torque-to-inertia ratio enables fast acceleration, making it ideal for indexing and positioning tasks. In assembly systems, it is often paired with gearboxes to increase output torque for tightening operations.

Maintenance and Service Life

Brushless motors require minimal maintenance, as they have no brushes to replace. The bearings are the primary wear components, and their life depends on the load and operating speed. Periodic lubrication of bearings is not required as they are sealed and lubricated for life. However, cleaning the motor surface and checking connections are recommended as part of routine inspections.

Environmental Considerations

The motor is rated for operation within a specified ambient temperature range, typically 0°C to 40°C, with derating for higher temperatures. It should not be used in explosive atmospheres unless specifically certified. The motor’s IP rating (usually IP54 or IP65) determines its suitability for dusty or wet environments.

Compatibility with Drives

The 4230 3012 80 is compatible with Atlas Copco servo drives and most third-party drives that support AC brushless motors with similar electrical parameters. Motor data such as winding resistance, inductance, and torque constant are provided to facilitate drive configuration.

Conclusion

The Atlas Copco 4230 3012 80 BSM 2590D R servo motor is a reliable, high-performance motion control component. Its robust construction, excellent dynamic characteristics, and low maintenance requirements make it a preferred choice for precision automation applications.