Servo/Stepper Motors

Servo and stepper motors are electromechanical actuators that convert electrical signals into precise mechanical motion within industrial systems. Servo motors use closed-loop feedback systems (typically with encoders) to achieve high accuracy in position, velocity, and torque control, while stepper motors operate in discrete steps without feedback, making them suitable for applications requiring precise positioning at lower speeds. Both types are essential for automation tasks requiring controlled movement, such as robotic arms, CNC machines, conveyor systems, and packaging equipment.

Servo motors operate using a closed-loop control system where a controller sends signals to the motor driver, which powers the motor to achieve desired position/speed. An encoder provides real-time feedback to the controller for continuous adjustment. Stepper motors work through electromagnetic pulses that rotate the rotor in discrete angular steps (typically 1.8° or 0.9° per pulse) without requiring feedback, with each pulse corresponding to a specific movement increment.