How Do I Choose An Integrated Stepper Motor Driver?

Choosing the right stepper motor driver saves extraordinary costs and facilitates a plethora of advantages. Read these expert tips and suggestions for selecting wisely.

With the advent of smart technology and innovation-led development, large marketplaces provide a myriad of options in the category of the stepper motor.

We keep an eye on the latest features, additions, and ingrained operational value while selecting an integrated stepper motor for specific applications. Consider the following and find an ideal answer to your requirements.

Discover load requirements.

What’s the application supply voltage? You can select a stepper with doubled up torque at the target operating speed for the practical operation needs. With high torque at low speeds, the stepper motors of rugged construction match any environment. You should study a host of features in the offerings from various manufacturers or suppliers.

Know torque-related issues.

Earlier, stepper-related issues like torque-mismatch and inertia-mismatch bothered a lot. However, with changing times and revolutionary ideas, the impact has come down to a remarkably low point. You can find appropriate motors with acceleration and low-sounding effects. Some of the modern motors these days come with zero-sound effects.

Consider voltage and current needs.

Factors like the voltage, current, maximum step pulse rate, and micro-stepping play a pivotal role in choosing a JVL integrated stepper motor or any other. Engineers can test the stepper motors for a wide range of current at different voltage levels. Also, engineers must focus on factors like micro-stepping for deriving the best results.

How To Select The Right DC Servo Drive?

Servo Drives are beyond matching voltage and current output for meeting motor’s requirements. A complete servo system needs specialized functions too.

Two of the most common types of motors that servo drives are paired with are asynchronous AC and brushless DC. Most recently, several manufacturers are offering brushless DC motors with integrated motion control and speed control.

Invariably, the servo drive type prompts the commutation based on on motor type and application sensitivity. While brushless DC motors operate with trapezoidal or sinusoidal commutation, asynchronous AC picks up both.

If torque ripple is an issue, then surely sinusoidal commutation eliminates it, though it would need a high-res feedback device for precise control. As we already know, a complete servo system requires a feedback system for detection & correction of errors, encoders & resolvers have been beneficial. Meanwhile, a servo drive should have no compatibility issues for signal processing and communicating that to the controller.

In the attempt to select the right servo drive, it’s basic to know about continuous current, maximum and peak voltage for producing the right output like velocity, position, and torque in the motor. These are co-dependent factors and are likely to go under observation for performance analysis.

Communication protocol, integrated safety, and AC or DC servo drive mounting type configuration also play a pivotal role in selecting servo drives for the motor. A few reliable motion control product manufacturing companies respond to customized orders for clients, especially concerning requirements at various facilities.

How Zero Backlash Gearbox Delivers Accurate Performance

Gear backlash thwarts accurate performance in gearmotors.

How speed reduction occurs? Gears reduce speed and facilitate higher torque. However, these gears are responsible for different variables like noise levels, efficiency, accuracy, and service life. For accurate gearing, reducing backlash remains one of the pivotal tasks.

Pre-loading and design factors contribute towards the development of a zero backlash gearbox for high-performance and high-accuracy. But, not all automation applications have the same demand from motion control manufacturers. Especially when the applications are less demanding and require cost-effective units for greater life.

How to reduce backlash? This is a pertinent question concerning gearmotors. Backlash can be reduced with the help of precision gears engineered perfectly to have a tighter and more precise fit. More play in the gear teeth nudges performance. When specific applications demand higher accuracy, precision gears are the ultimate solutions to go for. Hence, manufacturers cater to the facilities for customised gearboxes.

Since different gear types have a diverse amount of backlash, one can check out the alternative available in the motion control marketplace. Some of the zero backlash gear types include harmonic drive, strain wave gears, etc.

Reliable engineering teams and manufacturers incorporate various suggestions to fulfill the requirements of a client. They correspond to the needs of speed, torque, service life, and design physical arrangement of the gears and type of gearbox accordingly. The preferred envelope size and housing and the rest of the components are designed to suit the desired functionality. Also, these manufacturers analyse all factors to provide gearboxes with authentic performance.

The Servo Drive Selection – 5 Crucial Things One Must Know

Apart from matching drive voltage and current output to the motor’s requirements, several other factors are to be accounted for selecting a servo drive. Some drives are manufactured with specialized functions for specific demands. This guide covers the selection based on some of the common factors for most applications.

1. Commonly Paired Motors with Servo Drives

Motors operating in a closed-loop system like stepper, induction, and asynchronous ones are paired with servo drives. In motion control applications, the AC synchronous motors are paired with servo drives. Another common type is the DC brushless motor.

2. Feedback

Feedback is a crucial part of servo systems for closed-loop operation, error detection and correction of motor’s actual position, torque, and velocity. The feedback is generally provided by encoders, resolvers, or hall sensors. Other than that, the servo drive must be compatible with the motor signal for processing and communicating.

3. Voltage and current

Any motor-drive relationship derives from the power, which means drive’s maximum voltage, peak, and continuous current should be sufficient enough to produce speed, torque, and position for the motor. Manufacturers facilitate torque-speed curves for performance reportage on motor-drive combinations.

4. Analog/Digital

New digital servo drive varieties enable analog/digital inputs for command execution while the software does the tuning. These are also capable of path generation, internal function monitoring, and fault diagnostics.

5. Integrated safety

Whether AC or DC servo drive, safety standards under regulations for all machines are mandatory. Therefore, manufacturers are responsible for establishing of highest standard manufacturing with integrated safety.