LTi DRiVES LST-097-5-30-560/T1 Servo Motor

The LTi DRiVES LST-097-5-30-560/T1 is a permanent magnet synchronous servo motor built for precise and dynamic motion control. With a rated torque of 9.5 Nm, a rated speed of 3000 rpm, and compatibility with a 560 VDC intermediate circuit, it addresses demanding industrial drive tasks that require strong torque combined with fast positioning. The G6.1S designation defines a specific mechanical and electrical configuration. The motor is suitable for machine axes where high power density and consistent repeatability are essential.

Series and Model Identification

The LST series forms part of the LTi DRiVES motor range. The model code LST-097-5-30-560/T1 contains several fields. The 097 value identifies the frame size and stator diameter class. The 5 refers to the winding variant, which determines the torque constant and rated current. The 30 indicates the speed class, corresponding to a rated speed of 3000 rpm. The 560 value defines the DC bus voltage class. The T1 suffix describes the feedback and connection variant, while G6.1S defines a specific design revision and mechanical configuration. Together these fields allow precise matching of motor, drive, and machine.

Motor Design and Construction

The rotor uses rare earth permanent magnets, which removes the need for separate rotor excitation and contributes to high efficiency and torque density. The stator winding is manufactured with low-loss laminations and insulation material suited to industrial thermal loads. The housing is designed to conduct heat away from the winding and to protect the internal components from dust, moisture, and mechanical stress. The flange and shaft follow standard dimensions, allowing straightforward coupling to gearboxes, pulleys, and direct drive arrangements.

Electrical Characteristics

The motor is intended for operation with a servo drive that applies field oriented control. The rated torque of 9.5 Nm supports medium and high load axes, while the 3000 rpm rated speed allows short traverse times and fast cycle sequences. Peak torque is available for short durations to accelerate and decelerate high inertia loads. The 560 VDC class matches drives that operate from a rectified three phase supply, which is common in industrial cabinets. Winding resistance, inductance, and the torque constant are defined so that the drive can calculate current setpoints accurately.

Feedback and Control Compatibility

The T1 variant provides a defined feedback interface for the drive. The feedback device reports rotor position and speed, which the drive uses for commutation, velocity control, and position control. Because the resolver or encoder signal is processed directly by the drive, the quality of the mechanical coupling between motor shaft and feedback element has a strong influence on control stability. Motor temperature sensors are typically integrated into the winding so that the drive can reduce current or stop the axis if thermal limits are approached.

Thermal Management

Continuous torque depends on the ability of the motor to dissipate heat. The LST-097-5-30-560/T1 uses the flange and housing surface as the main thermal path. When mounted on a metal machine frame, heat transfers through the flange into the structure. For high duty cycles, additional cooling may be required, such as forced air over the housing surface or liquid cooling where the motor variant supports it. Correct derating based on ambient temperature and altitude ensures that insulation life is not reduced.

Mechanical Integration

Shaft alignment is critical. Radial and axial misalignment between motor shaft and load increases bearing load and shortens service life. Couplings should be selected so that they absorb small misalignments without transmitting excessive force into the shaft. Belt drives require careful tensioning to avoid radial overload. The motor can be mounted in horizontal or vertical orientation, provided that sealing and lubrication requirements are respected. Cable routing should avoid sharp bends and should keep power and feedback cables separated.

Dynamic Performance

Low rotor inertia combined with a magnetic circuit that responds quickly to current changes produces high dynamic performance. The drive can command rapid torque changes, allowing the axis to follow complex motion profiles with small following error. Position, velocity, and torque modes are all supported. In multi-axis machines, several motors of this type can operate simultaneously and remain synchronized through the controller, which is important for gantry structures, rotary tables, and interpolating machining centers.

Applications

The motor suits packaging machinery, printing equipment, textile machines, handling systems, and automated assembly lines. It can drive feed axes, positioning tables, winding stations, and tool changers. The 9.5 Nm rating is appropriate where the load inertia is moderate to high and where fast acceleration is required. Applications that involve frequent starts and stops benefit from the motor thermal capacity and peak torque headroom.

Installation and Commissioning

Installation starts with correct mechanical alignment and secure mounting bolts tightened to the specified torque. Shielded motor cables should be used and the shield should be bonded at both ends according to EMC practice. Feedback cables should be routed separately from power cables to reduce noise coupling. During commissioning, motor data such as pole count, rated current, torque constant, and feedback resolution are entered into the drive. Automatic tuning can identify control loop gains, but manual adjustment is often required for high performance axes.

Maintenance and Reliability

Bearings are the primary wearing component. Vibration analysis and temperature monitoring help detect early bearing degradation. The motor should be kept free from abrasive dust and aggressive chemicals. Connectors and cable glands should be inspected periodically for looseness or corrosion. If the motor operates in a wash-down or humid environment, the sealing integrity of the flange and connector area should be verified.

Selection Considerations

Selection requires matching the continuous torque to the load profile, verifying the required peak torque for acceleration, and confirming that the drive can supply the corresponding current. The available DC bus voltage must match the 560 V class. The feedback type must be compatible with the drive interface. Mechanical interface dimensions, shaft load limits, and ambient conditions must all be checked against the machine design.

Conclusion

The LTi DRiVES LST-097-5-30-560/T1 is a high torque permanent magnet servo motor with 9.5 Nm rated torque, 3000 rpm rated speed, and 560 VDC bus compatibility. Its G6.1S configuration supports precise commutation, high dynamic response, and dependable continuous operation. Correct selection, installation, and commissioning allow it to deliver accurate and productive motion in demanding industrial machines.