Contents
How do you spec out a servo motor?
Here’s a look at the key parameters to consider when sizing a servo motor.
- Load. Correctly sizing a servo motor begins with knowing the load.
- Speed. Another important factor is the speed or velocity.
- Torque. Once the load and speed are known, calculate the required torque values.
- Sizing Software.
- A Word About Gearing.
What are the performance specifications of servo motor?
200V input
| items | Specification | |
|---|---|---|
| Basic Specifications | Rated Speed * | 3000 |
| Max Speed * | 5000 | |
| Moment of Inertia * | 0.014 | |
| Load Inertia | Up to 30 times Motor Inertia |
How is servo motor current calculated?
V = IR. To the first order, stall current = Applied drive voltage divided by the DC resistance of the coil. The stall current occurs when the motor is stalled (not moving), so there is no reactance and no “back electromotive force (EMF)”.
Does a servo motor have gears?
What Is A Servo? A servo or servo motor, at its simplest, is a self-contained electromechanical device that allows for powerful and precise positioning control. Servo motors usually consist of at least an electric motor, a gearbox, a potentiometer, a small control board, and an output shaft.
What is a servo stall current?
Stall current is the maximum current drawn1, when the motor is applying its maximum torque, either because it is being prevented from moving entirely or because it can no longer accelerate given the load it is under.
How can I get a servo motor with high torque?
A possible remedy to get a servo motor with high torque is to add a gearhead—an arrangement of gears ensuring proportional speed-to-torque conversion. The gear ratio is the measure to which the device amplifies rotational force, while decreasing revolution rates.
How to optimize the performance of a servo?
The key to optimizing the performance of a servo system is to find the right combination of components (motor, servo amplifier, mechanical drive mechanism, feedback) and operating parameters (inertia ratio, gains and tuning values, move profile) that provides the desired performance with the highest possible efficiency.
Why is the inertia ratio of a servo important?
The load-to-motor inertia ratio is a critical parameter in servo motor sizing and performance. As we discussed in a previous article, one of the most significant effects of using a gearbox in a servo system is its ability to help optimize the inertia ratio.
How does electronic gearing for servo motors work?
And each follower can be driven at a different ratio relative to the master. It’s even possible to connect electronically geared servos in a chain configuration, where one motor acts as a master to one axis and is a slave to another axis. When electronic gearing is used, the tuning of the follower motor has increased importance.