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{"title":"CNC Machine PMSM AC Servo Drive System Motor Controller 3.5A-32.0A","imgUrl":"https:\/\/img.chinax.com\/nimg\/68\/d9\/31a000f88d69dd8ac5c6f2c352f6-200x200-1\/cnc_machine_pmsm_ac_servo_drive_system_motor_controller_3_5a_32_0a.jpg","attrs":{"Brand Name":"ZFeng","Model Number":"D200 Series","Certification":"CE\u3001CB\u3001CCC\u3001ISO9001\u3001ISO14001\u3001ISO45001\u3001EN61439\u3001EN61000","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union,MoneyGram"}}
An open-loop servo system is a type of motion control system where the control action (command signal) is executed without relying on feedback from the system's output or position. The system operates based solely on predetermined inputs and does not adjust its performance based on actual output conditions.
Definition and Principle
Open loop servo system is a control system that does not rely on feedback signals, and its core characteristics are:
No feedback mechanism: System outputs (such as position and velocity) are not fed back to the controller through sensors.
Execution logic: The controller directly drives the actuator (such as a stepper motor) based on preset instructions, assuming that the instructions and execution results are completely consistent.
System Composition
A typical open-loop servo system includes:
Controller: Generate control signals (such as pulse sequences).
Actuators, such as stepper motors and open-loop DC motors, directly respond to control signals.
Load: The mechanical structure that is driven.
Characteristic
Description
Low cost
No need for sensors and complex control algorithms, significantly reducing hardware costs.
Simple structure
Intuitive logic, easy to implement and maintain.
Fast response speed
No feedback delay, instruction execution is fast.
Precision dependent model
Accuracy depends on the characteristics of the actuator (such as the step angle accuracy of the stepper motor) and the accuracy of the system modeling.
Application
1. Low precision demand scenarios: such as economical 3D printers, simple CNC machine tools, and low-cost automation equipment. 2. Static or low dynamic load: When the load remains constant or changes slowly, error accumulation is acceptable. Typical applications of open-loop stepper motors: 3. 3D printer: The nozzle movement is controlled by a fixed number of steps, and interlayer errors do not affect the overall printing. 4. Simple CNC machine tools, such as economical engraving machines, do not require feedback correction when the material hardness is uniform.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2004
Total Annual:
10000000-15000000
Employee Number:
60~100
Ecer Certification：
Verified Supplier
GuangDong Zhufeng Electric Co.,LTD established in 2004, is a national high-tech and energy save enterprise with approval by National Development and Reform Commission. Focusing on the development and production and sale of products of “energy saving and control speed and variable speed” ... GuangDong Zhufeng Electric Co.,LTD established in 2004, is a national high-tech and energy save enterprise with approval by National Development and Reform Commission. Focusing on the development and production and sale of products of “energy saving and control speed and variable speed” ...
