LTi Drives LSH-050-3-30-48/T1 PM Servo Motor with Nuegart PLE 60
The LTi Drives LSH-050-3-30-48/T1 is a three phase permanent magnet servo motor from the LSH series, a product family developed by LTi Drives for industrial motion applications. The motor is supplied together with a Nuegart PLE 60 planetary gearbox, a combination that pairs a high torque density motor with a precision gear reduction unit. This arrangement is common in industrial axes where high output torque is required at moderate speed, and where backlash and torsional stiffness must be controlled to maintain positioning accuracy.
The LSH series is designed for use with LTi Drives servo controllers, including the Servo One platform and the CDA, CDB, CDD and CDE families. Because the motor and drive share compatible feedback and electrical characteristics, commissioning is simplified and the closed loop performance of the axis can be optimized using the drive tuning functions.
Product Overview
The LSH-050-3-30-48/T1 is a permanent magnet synchronous servo motor. It uses rare earth magnets in the rotor to produce high torque per unit volume, and it is designed for closed loop operation with a servo drive that provides current, velocity and position regulation. The motor windings are configured for a defined voltage and current class, and the mechanical interface is designed for direct mounting to machine structures or to a gearbox input flange.
The Nuegart PLE 60 planetary gearbox is a precision reduction unit. It uses planetary gears to transmit torque from the motor shaft to the output shaft while reducing speed and increasing torque. Planetary gearboxes are known for their compact design, high torsional stiffness and low backlash, which makes them suitable for positioning axes where repeatability is important. The gearbox is mounted to the motor in a configuration that maintains alignment and minimizes coupling errors.
Key Features and Functional Highlights
The motor is designed for smooth torque output and low cogging, which improves low speed performance and reduces vibration. This is important in applications such as feeding, indexing and positioning where the axis must move slowly and precisely. The rotor construction supports high acceleration, allowing the axis to reach commanded speed quickly during dynamic cycles.
The motor includes a temperature sensor, typically a thermistor or PT100 element, which allows the drive to monitor winding temperature and protect the motor from overload. The feedback device, where fitted, provides rotor position information to the drive so that commutation and position control can be performed accurately. The motor housing is designed for effective heat dissipation, and the shaft and flange dimensions follow standard mechanical interfaces for ease of integration.
The Nuegart PLE 60 gearbox provides defined gear ratios, allowing the machine designer to match motor speed and torque to the requirements of the load. Lubrication is sealed for life under normal operating conditions, and the output shaft is supported by bearings designed for radial and axial loads. The gearbox housing is constructed for industrial environments and can be mounted in various orientations.
Technical Specifications
The LSH-050-3-30-48/T1 is a three phase permanent magnet servo motor. The designation indicates the frame size, the number of pole pairs, the winding variant and the feedback or mechanical option fitted. The motor is designed for operation with a servo drive that provides a controlled three phase output. Rated voltage, rated current, rated torque and rated speed are defined by the motor data sheet and must be respected during commissioning.
The Nuegart PLE 60 gearbox has a defined gear ratio, rated output torque and permissible input speed. These values must be matched to the motor characteristics and the load requirements. The gearbox output shaft is designed for connection to pulleys, couplings, pinions or other transmission elements. Backlash and torsional stiffness values are specified for the gearbox family and should be considered when configuring the position loop of the drive.
Performance and Advantages
The combination of a permanent magnet servo motor and a precision planetary gearbox provides high torque density and accurate positioning. The motor delivers fast dynamic response, while the gearbox multiplies torque and reduces speed to suit the mechanical load. This arrangement is often more compact than a direct drive solution with equivalent torque, which is advantageous in machines with limited space.
Because the motor is designed for use with LTi Drives controllers, the electrical and feedback interfaces are compatible and commissioning data is readily available. The gearbox adds torsional stiffness and reduces the effect of load inertia reflected to the motor, which can improve stability and reduce settling time in positioning moves.
Application Areas
The LSH-050-3-30-48/T1 with Nuegart PLE 60 is used in machine tools for feed and auxiliary axes, in packaging machinery for film feed, cutting and sealing stations, in handling systems for pick and place and gantry axes, and in printing and converting equipment for register and tension control. It also appears in textile machinery, plastics processing equipment, woodworking machines and general automation systems where precise positioning and high torque are required.
Installation and Commissioning
Installation begins with verifying the motor and gearbox ratings against the load requirements. The motor is mounted to the machine structure or to the gearbox input flange using the specified fasteners and torque values. Alignment between the motor shaft and the gearbox input must be maintained to avoid additional radial loads. The gearbox output is connected to the driven element using a suitable coupling or pulley arrangement.
Electrical connections include the motor power cable and the feedback cable where a feedback device is fitted. Shielded cables should be used, with shields bonded to ground at both ends. The motor temperature sensor is connected to the drive so that thermal protection is active. Commissioning includes verifying the feedback direction, entering the motor data into the drive, and tuning the current, velocity and position loops. A test run at reduced speed confirms correct rotation and mechanical alignment.
Maintenance and Diagnostics
Maintenance consists of checking mounting fasteners for tightness, inspecting cables and connectors for damage, and verifying that the motor and gearbox are free from excessive vibration or temperature rise. The gearbox is lubricated for life under normal conditions, but the manufacturer recommendations should be followed for high load or high duty applications. The drive diagnostic functions can be used to monitor following error, current and temperature during operation.
System Integration and Compatibility
The motor is designed for use with LTi Drives servo controllers. It can be combined with the Servo One platform or with the CDA, CDB, CDD and CDE families, depending on the power and interface requirements of the application. The Nuegart PLE 60 gearbox is a mechanical component that integrates with the motor and the driven load. Compatibility depends on the motor flange, shaft dimensions and gearbox input specifications.
Selection Guidance
When selecting this motor and gearbox combination, the key considerations are continuous and peak torque, rated speed, gear ratio, backlash, torsional stiffness, feedback type, environmental protection and available mounting space. The LSH-050-3-30-48/T1 with Nuegart PLE 60 suits axes that require high torque at moderate speed with accurate positioning. Engineers should confirm motor and gearbox ratings against the load cycle before finalizing the selection.
Conclusion
The LTi Drives LSH-050-3-30-48/T1 permanent magnet servo motor with Nuegart PLE 60 planetary gearbox is a matched mechanical and electrical solution for industrial positioning axes. The motor provides high torque density and smooth dynamic response, while the gearbox adds precision reduction and torsional stiffness. Together they support accurate closed loop control when paired with a compatible LTi Drives servo controller. For engineers designing or maintaining such axes, this combination remains a practical and well understood choice.
