Contents
How do I choose an AC servo motor?
Top three factors in choosing a servo motor
- Continuous torque.
- Peak torque.
- Speed.
- Gear ratio.
- Inertia.
- Accuracy.
- Environment factors.
- Efficiency.
How do you calculate servo motor force?
Divide the motor speed by the required speed and round down to get a starting gear ratio. Then divide the required torque by the gear ratio to find the new required torque.
What are the important features of AC servo motor?
Operation of the motor over its optimum speed range. Minimizing motor size by multiplying torque. Minimizing reflected inertia for maximum acceleration. Providing maximum torsional stiffness.
How do you size a fan motor?
The key indicator for determining fan motor size is fan brake horsepower (BHP), which represents the force needed to brake, or stop, the motor. This is the minimum amount of power needed to operate the fan. Your fan manufacturer will always specify brake horsepower.
What is sizing of motor?
Motor Sizing Motor sizing refers to the process of picking the correct motor for a given load. If a motor is too small for an application it may not have sufficient torque to start the load and run it up to the correct speed.
Is the sizing of a servo motor universal?
Through the cooperation with many motion control experts I learned that the servo motor sizing process is a somewhat universal procedure. The calculation of inertia and torque of mechanical components, i.e. the motor load, has not changed since the invention of the electrical motor.
Which is better motion control AC or servo?
Correctly sizing motors in a motion control application is more difficult than sizing an AC induction motor because not only must acceleration, deceleration and running torque be taken into account, but also the ability of the servo motor to tightly control the load’s speed, position or torque.
Can a servo system handle a 10 : 1 mismatch?
While many servo systems can handle mismatches of much higher than 10:1, better system control and response will result with an inertia mismatch of 10:1 or less. The servo motor size directly affects other servo system components, so right-sizing the motor is critical.
What does the speed profile on a servo mean?
The speed profile is a graphical representation of acceleration, constant speed, and deceleration as the payload reaches its destination. As you can see by the torque profile, the maximum amounts of torque occur during acceleration. When the machine starts, the motor must overcome the mechanical friction while accelerating the load from rest.