Stepper motor performance judgment - Database & Sql Blog Articles
The stepper motor is a special motor designed for precise position and speed control. The biggest feature of the stepper motor is its "digital". For each pulse signal sent by the controller, the stepper motor runs a fixed angle (referred to as one step) under the drive of its drive. If a series of pulse stepper motors are received, they will run continuously for a corresponding distance. At the same time, the motor speed can be directly controlled by controlling the pulse frequency. Since the working principle of the stepping motor is easy to learn and use, the cost is low (relative to the servo), the motor and the drive are not easily damaged, and it is very suitable for microcomputer and single-chip control. Therefore, it has been more and more widely used in control equipment of various industries in recent years. application.
Determine how much torque is needed: Static torque is one of the main parameters for selecting a stepper motor. When the load is large, a large torque motor is required. When the torque index is large, the shape of the motor is also large. Judging the running speed of the motor: When the speed requirement is high, the motor with larger phase current and smaller inductance should be selected to increase the power input. A higher supply voltage is used when selecting a stepper driver.
Select the installation specifications of the motor: such as 57, 86, 110, etc., mainly related to the torque requirements. Determine the positioning accuracy and vibration requirements: determine whether subdivision is required and how many subdivisions are required. The drive is selected based on the current, subdivision and supply voltage of the motor.
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