2024-10-08 13:55
How should enterprises select servo motors and stepper motor
Many friends have asked me how to properly select servo motors and stepper motors for enterprise procurement without understanding the products.
How to correctly choose between servo motors and stepper motors
This mainly depends on the specific application situation. Simply put, you need to determine: the nature of the load (such as horizontal or vertical load, etc.), torque, inertia, speed, accuracy, acceleration and deceleration requirements, upper-level control requirements (such as port interface and communication requirements), and whether the main control mode is position, torque, or speed. Determine the type of motor and the accompanying driver or controller based on the power supply (DC or AC power supply, or battery power supply) and voltage range.
How to match stepper motor drivers?
Match a driver with a current greater than or equal to that of the motor. If low vibration or high precision is required, a microstepping driver can be used. For high-torque motors, use a high-voltage driver as much as possible to achieve good high-speed performance.
What is the difference between 2-phase and 5-phase stepper motors, and how to choose?
2-phase motors are low-cost but have more vibration at low speeds and faster torque drop at high speeds. 5-phase motors have less vibration, better high-speed performance, and are 30~50% faster than 2-phase motors, which can replace servo motors in some cases.
When to choose a DC servo system, and what is the difference between it and an AC servo?
DC servo motors are divided into brushed and brushless motors.
Brushed motors are low-cost, simple in structure, have a large starting torque, a wide speed regulation range, easy to control, require maintenance, but are convenient to maintain (replace carbon brushes), generate electromagnetic interference, and have environmental requirements. Therefore, it can be used for cost-sensitive general industrial and civilian occasions.
Brushless motors are small in size, light in weight, powerful, responsive, fast in speed, small in inertia, smooth in rotation, and stable in torque. The control is complex, easy to realize intelligence, and the electronic commutation method is flexible, which can be square wave commutation or sine wave commutation. The motor is maintenance-free, highly efficient, operates at low temperatures, has very little electromagnetic radiation, and has a long lifespan, which can be used in various environments.
AC servo motors are also brushless motors, divided into synchronous and asynchronous motors. Currently, synchronous motors are generally used in motion control. They have a large power range and can achieve very large power. They have a large inertia, *high rotation speed is low, and it drops rapidly as the power increases. Therefore, they are suitable for low-speed stable operation applications.
Issues to pay attention to when using motors
Before powering on and running, the following checks should be performed:
Whether the power supply voltage is appropriate (overvoltage may cause damage to the drive module); the +/- polarity of the DC input must not be connected incorrectly, whether the motor model or current setting value on the drive controller is appropriate (not too large at the beginning);
Ensure the control signal line is securely connected, and consider shielding issues in industrial sites (such as using twisted pair);
Do not connect all the wires that need to be connected at the beginning, only connect the most basic system, and gradually connect after running well;
Be sure to understand the grounding method, or use a floating connection;
Closely observe the motor's status within the first half hour of operation, such as whether the movement is normal, sound and temperature rise, and stop immediately for adjustment if any problems are found.
Through the above five aspects to compare and select the procurement of motor servo motors and stepper motors in detail, I hope customers can buy products that meet their needs. For more information about hybrid stepper motors, hybrid servo motors, drivers, digital stepper drivers, vacuum stepper motors, and other products, I hope customers can help everyone.
How to correctly choose between servo motors and stepper motors
This mainly depends on the specific application situation. Simply put, you need to determine: the nature of the load (such as horizontal or vertical load, etc.), torque, inertia, speed, accuracy, acceleration and deceleration requirements, upper-level control requirements (such as port interface and communication requirements), and whether the main control mode is position, torque, or speed. Determine the type of motor and the accompanying driver or controller based on the power supply (DC or AC power supply, or battery power supply) and voltage range.
How to match stepper motor drivers?
Match a driver with a current greater than or equal to that of the motor. If low vibration or high precision is required, a microstepping driver can be used. For high-torque motors, use a high-voltage driver as much as possible to achieve good high-speed performance.
What is the difference between 2-phase and 5-phase stepper motors, and how to choose?
2-phase motors are low-cost but have more vibration at low speeds and faster torque drop at high speeds. 5-phase motors have less vibration, better high-speed performance, and are 30~50% faster than 2-phase motors, which can replace servo motors in some cases.
When to choose a DC servo system, and what is the difference between it and an AC servo?
DC servo motors are divided into brushed and brushless motors.
Brushed motors are low-cost, simple in structure, have a large starting torque, a wide speed regulation range, easy to control, require maintenance, but are convenient to maintain (replace carbon brushes), generate electromagnetic interference, and have environmental requirements. Therefore, it can be used for cost-sensitive general industrial and civilian occasions.
Brushless motors are small in size, light in weight, powerful, responsive, fast in speed, small in inertia, smooth in rotation, and stable in torque. The control is complex, easy to realize intelligence, and the electronic commutation method is flexible, which can be square wave commutation or sine wave commutation. The motor is maintenance-free, highly efficient, operates at low temperatures, has very little electromagnetic radiation, and has a long lifespan, which can be used in various environments.
AC servo motors are also brushless motors, divided into synchronous and asynchronous motors. Currently, synchronous motors are generally used in motion control. They have a large power range and can achieve very large power. They have a large inertia, *high rotation speed is low, and it drops rapidly as the power increases. Therefore, they are suitable for low-speed stable operation applications.
Issues to pay attention to when using motors
Before powering on and running, the following checks should be performed:
Whether the power supply voltage is appropriate (overvoltage may cause damage to the drive module); the +/- polarity of the DC input must not be connected incorrectly, whether the motor model or current setting value on the drive controller is appropriate (not too large at the beginning);
Ensure the control signal line is securely connected, and consider shielding issues in industrial sites (such as using twisted pair);
Do not connect all the wires that need to be connected at the beginning, only connect the most basic system, and gradually connect after running well;
Be sure to understand the grounding method, or use a floating connection;
Closely observe the motor's status within the first half hour of operation, such as whether the movement is normal, sound and temperature rise, and stop immediately for adjustment if any problems are found.
Through the above five aspects to compare and select the procurement of motor servo motors and stepper motors in detail, I hope customers can buy products that meet their needs. For more information about hybrid stepper motors, hybrid servo motors, drivers, digital stepper drivers, vacuum stepper motors, and other products, I hope customers can help everyone.
