LTi Drives DSM4-14.2-21R83-200 Servo Motor
The LTi Drives DSM4-14.2-21R83-200 is a permanent magnet synchronous servo motor from the DSM4 series. It is built for industrial motion systems that require fast acceleration, accurate positioning, and stable torque across a wide speed range. The motor is suitable for continuous operation in automated machinery and integrates with LTi Drives control and drive platforms.
Product Overview
The DSM4-14.2-21R83-200 follows the DSM4 design concept, combining a compact stator and rotor assembly with high torque density. It is intended for applications where machine builders need repeatable movement, short cycle times, and smooth response under changing load conditions. The motor construction supports closed loop operation with modern servo controllers and feedback devices.
Design and Construction
The motor uses a robust housing and flange design for mechanical stability. Its rotor is designed with low inertia to improve dynamic response. High quality bearings support radial and axial loads within the specified limits. The stator winding is optimized for efficient torque production and controlled thermal behavior. The interface dimensions allow mounting in standard servo motor installations.
Performance Characteristics
The DSM4-14.2-21R83-200 delivers high peak torque for acceleration and deceleration phases. It maintains smooth torque output at low speeds and provides precise speed regulation at higher speeds. Low cogging torque supports fine positioning tasks. The motor is suitable for frequent start stop cycles when operated within its thermal limits and with proper drive configuration.
Feedback and Control
The motor is intended for use with compatible feedback systems such as resolvers or encoders, depending on the machine design. Combined with an LTi Drives servo controller, it supports position control, speed control, and torque control. Parameter settings, current limits, and thermal protection must match the motor data and machine load.
Integration and Commissioning
Correct mounting alignment, rigid coupling, and proper cable shielding are important for reliable operation. The power cable and feedback cable should be routed separately where possible to reduce electrical noise. Commissioning typically includes setting motor data, checking direction of rotation, tuning the control loop, and verifying thermal sensors and limit switches.
Applications
The DSM4-14.2-21R83-200 is suited to machine tools, packaging equipment, printing systems, handling units, robotics, textile machines, and general factory automation. It performs well in applications that demand accurate positioning, fast response, and dependable continuous duty.
Maintenance and Operational Care
Regular inspection should include bearing condition, shaft sealing, cable connections, and contamination around the flange. The motor should be kept within its rated temperature range. Excessive vibration, unusual noise, or overheating can indicate misalignment, overload, or feedback problems. Following the manufacturer data for load, cooling, and duty cycle helps ensure long service life.
Summary
The LTi Drives DSM4-14.2-21R83-200 is a compact and dynamic synchronous servo motor for industrial motion control. Its design supports precise positioning, high torque response, and flexible integration with LTi Drives systems, making it a practical choice for demanding automation tasks.




