LTi Drives LST-097-3-30-560/T1 1R Servo Motor
The LTi Drives LST-097-3-30-560/T1 1R is a permanent magnet synchronous servo motor from the LST series, a product family developed by LTi Drives for industrial motion applications. The motor is characterized by a rated torque of 5.3 Nm, a rated speed of 3000 rpm and a DC link voltage of 560 V. The 1R suffix identifies the feedback configuration fitted to the motor, while the ordering code describes the frame size, the number of pole pairs, the winding variant and the mechanical option.
The LST 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 optimised using the drive tuning functions.
Product Overview
The LST-097-3-30-560/T1 1R 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 560 V DC link voltage class, which corresponds to operation with a 400 V AC three phase supply through a servo drive with an active or passive rectifier front end.
The motor is built for continuous industrial duty. The housing provides mechanical protection and supports heat dissipation from the stator windings. The shaft and flange dimensions follow standard mechanical interfaces, which allows the motor to be combined with couplings, pulleys, pinions and planetary gearboxes without special adapters.
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, defined by the 1R option, provides rotor position information to the drive so that commutation and position control can be performed accurately. Feedback options in the LST series include resolver and encoder types, and the specific device fitted to a given motor is defined by the ordering code.
The motor housing is designed for effective heat dissipation, with a ribbed or smooth surface depending on the variant. The connection arrangement determines whether power and feedback cables are routed through connectors or terminal boxes and how the cables exit the motor. This affects installation in tight machine spaces where cable routing must be planned carefully.
Technical Specifications
The LST-097-3-30-560/T1 1R has a rated torque of 5.3 Nm at a rated speed of 3000 rpm, with a DC link voltage of 560 V. These values define the continuous operating point of the motor. Peak torque is higher than rated torque and is available for short periods during acceleration, subject to the thermal limits of the winding. Rated current, winding resistance, winding inductance and rotor inertia are defined by the motor data sheet and must be respected during commissioning.
Mechanical data includes flange dimensions, shaft diameter, shaft length, permissible radial and axial loads, and the degree of protection of the housing. These values determine how the motor can be mounted and what loads the bearings can accept. Thermal data includes the permissible winding temperature and the thermal time constant, which together define how long the motor can operate at overload before the temperature limit is reached.
Performance and Advantages
Permanent magnet servo motors provide high torque density and fast dynamic response compared with induction motors of similar frame size. This allows machine designers to achieve the required acceleration with a smaller and lighter motor, which reduces moving mass on the axis and can improve overall machine dynamics. Smooth torque output also reduces audible noise and mechanical wear in the transmission.
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 motor can be combined with a planetary gearbox to increase output torque and reduce speed, or used directly on the load in a direct drive arrangement where high stiffness and zero backlash are required.
Application Areas
The LST-097-3-30-560/T1 1R 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 ratings against the load requirements. The motor is mounted to the machine structure or to a gearbox input flange using the specified fasteners and torque values. Alignment between the motor shaft and the driven element must be maintained to avoid additional radial loads on the bearings. A suitable coupling, pulley or pinion is fitted to the shaft using the correct method for the shaft design.
Electrical connections include the motor power cable and the feedback cable. Shielded cables should be used, with shields bonded to ground at both ends over a large contact area. 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 is free from excessive vibration or temperature rise. The bearings are lubricated for life under normal conditions, but replacement may be required after extended service or in high load 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. Compatibility depends on the motor winding, the feedback type and the mechanical interface, all of which are defined by the ordering code.
Selection Guidance
When selecting this motor, the key considerations are continuous and peak torque, rated speed, rotor inertia, feedback type, flange and shaft dimensions, degree of protection and available mounting space. The LST-097-3-30-560/T1 1R with 5.3 Nm and 3000 rpm suits axes that require high torque density and accurate positioning at moderate to high speed. Engineers should confirm motor ratings against the load cycle and verify that the selected drive can supply the required current before finalising the selection.
Conclusion
The LTi Drives LST-097-3-30-560/T1 1R permanent magnet servo motor is a high torque density motor designed for industrial positioning and feed axes. Its 5.3 Nm torque, 3000 rpm rated speed and 560 V DC link voltage suit a wide range of motion tasks, while its integrated temperature sensing and flexible feedback options support accurate closed loop control when paired with a compatible LTi Drives servo controller. For engineers designing or maintaining such axes, this motor remains a practical and well understood choice.
