LTi Drives LSH-050-4-45-320/T1 Servo Motor

The LTi Drives LSH-050-4-45-320/T1 is a permanent magnet synchronous servo motor designed for precise and dynamic motion control. With a rated torque of 0.95 Nm, a rated speed of 4500 rpm, and compatibility with a 320 VDC bus, this motor is suitable for compact machine axes that require fast acceleration and accurate positioning. The G6.2S designation refers to a specific configuration and hardware variant. Its compact construction makes it suitable for applications where space is limited.

Series and Model Identification

The LSH series is a family of servo motors used in industrial automation. The model designation LSH-050-4-45-320/T1 includes information about the frame size, winding, and voltage class. The 050 indicates the frame size. The 4 refers to the winding variant. The 45 indicates the speed class. The 320 defines the DC bus voltage compatibility. The T1 designation refers to a feedback or connection variant. The G6.2S designation provides additional configuration information.

Motor Design and Construction

The motor uses rare earth permanent magnets in the rotor. This design eliminates the need for rotor excitation and contributes to high efficiency and high torque density. The stator winding is designed for low losses and good thermal behavior. The housing provides mechanical protection and effective heat dissipation. The shaft and flange are manufactured for stable mechanical integration with gearboxes, pulleys, and other machine elements.

Electrical Characteristics

The LSH-050-4-45-320/T1 is designed for operation with a servo drive that provides field oriented control. The motor can deliver high peak torque for short periods, enabling fast acceleration and deceleration. The rated torque of 0.95 Nm provides sufficient force for small and medium load axes. The rated speed of 4500 rpm supports rapid traverse movements and short cycle times. The 320 VDC bus voltage is compatible with modern servo drives that operate from a rectified three phase supply.

Feedback and Control Compatibility

The motor is typically equipped with a feedback device such as a resolver or an encoder. The feedback system provides rotor position and speed information to the servo drive. This information is essential for accurate commutation and precise motion control. The feedback interface must match the drive configuration. Motor temperature sensors can be connected to protect against overheating. Feedback parameters are configured during commissioning.

Thermal Management

Thermal performance is a critical factor in servo motor selection. The LSH motor is designed to manage heat generated during continuous and intermittent operation. The winding insulation system is suitable for standard industrial ambient conditions. When the motor is mounted on a metal machine frame, additional heat can be transferred through the flange. In applications with high duty cycles, forced cooling may be considered.

Mechanical Integration

The motor shaft and flange dimensions are designed for standard mechanical interfaces. Coupling to the load should be aligned carefully to avoid radial and axial forces that could damage bearings. The motor can be mounted in horizontal or vertical orientation. Power and feedback connectors are positioned for convenient cable routing. The compact housing allows dense mounting in machine frames.

Dynamic Performance

High dynamic response is achieved through a low rotor inertia and a magnetic circuit that supports rapid current changes. This allows the motor to follow complex motion profiles with minimal lag. The drive can implement position, velocity, and torque control modes. In multi-axis systems, the motor can be synchronized with other axes for coordinated motion.

Applications

The LSH-050-4-45-320/T1 is suitable for packaging machines, labeling systems, printing equipment, textile machinery, and automated assembly lines. It can be used for feed axes, positioning tables, and tool changers. Its 0.95 Nm rating makes it appropriate for small and medium load axes, while the 4500 rpm speed supports fast positioning. The motor is also suitable for applications requiring frequent starts and stops.

Installation and Commissioning

Correct installation begins with mechanical alignment and secure mounting. Motor cables should be shielded and connected according to the drive manufacturer instructions. The feedback cable should be routed separately from power cables to reduce interference. During commissioning, motor parameters such as pole count, rated current, torque constant, and feedback resolution must be entered into the servo drive.

Maintenance and Reliability

The motor requires minimal maintenance under normal operating conditions. Bearings are the primary wear component and their condition can be monitored through vibration and temperature measurements. The motor should be kept clean and free from excessive dust or moisture. Regular inspection of cables and connectors helps prevent intermittent faults.

Selection Considerations

When selecting the LSH-050-4-45-320/T1, users should verify the required torque and speed, the available bus voltage, the feedback type, and the mechanical interface. The motor should be matched to the load inertia for stable control. The drive must be capable of supplying the required continuous and peak current. The G6.2S designation should be confirmed against the machine specification.

Conclusion

The LTi Drives LSH-050-4-45-320/T1 is a compact and efficient servo motor that provides 0.95 Nm of rated torque at 4500 rpm with 320 VDC bus compatibility. Its design supports precise positioning, high dynamic response, and reliable operation. With correct selection and commissioning, it contributes to productive and accurate machine performance.