Engineering Notes by Oriental Motor

Welcome to Oriental Motor's "Engineering Notes" Blog:

Products and technology are only valuable when coupled with skilled people and services to support them. Since 1978, ORIENTAL MOTOR U.S.A. CORP. has been building a service and support system to better serve customers. It is our goal to provide the best product and service from the design phase, through the sale and beyond.

Our blog will feature:

  • Introduction to new products and technologies
  • Motion control basics and application examples
  • Tips for motor selection, programming, and troubleshooting

 

Show & Tell: AC Induction Motors

Posted by Johann Tang on Oct 31, 2019 8:50:19 PM

AC motors are simple to control, rugged, and cost effective for general purpose applications.  These reasons are why they are the most popular type of electric motor across various industries.  In this post, we will briefly introduce induction motors and demonstrate how to operate these motors.

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Topics: AC Motors, VIDEOS

Fan Basics: Air Flow, Static Pressure, and Impedance

Posted by Johann Tang on Oct 25, 2019 9:00:00 AM

Do you know how to use this graph?

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Topics: VIDEOS, Cooling Fans, Motion Control Basics

Tips to Minimize Stepper Motor Vibration

Posted by Johann Tang on Sep 30, 2019 8:33:27 PM

Stepper motors vibrate.  It's what they do.  To minimize motor vibration, first we need to understand where they come from.

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Topics: Stepper Motors, Smooth Drive, Motor Sizing, VIDEOS, Gearheads

Incremental Encoder vs Absolute Encoders in Closed-loop Feedback Systems

Posted by Johann Tang on Sep 12, 2019 3:57:57 PM

The terms "absolute" and "incremental" come up frequently in the world of position control.  The exact meaning can be the type of motion done by the motor in programming terms or the type of feedback device used with the motor.  In this article, we will focus on the differences between an incremental closed-loop feedback system and an absolute closed-loop feedback system.

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Topics: Stepper Motors, Absolute Positioning, Alphastep Hybrid Control, Linear & Rotary Actuators, VIDEOS

A Brief Overview of the AlphaStep Family

Posted by Johann Tang on Aug 28, 2019 2:37:43 PM

AlphaStep Logo

The word, "AlphaStep", describes Oriental Motor's patented Hybrid Control technology, which offers improved stepper motor performance by sensing the rotor position and automatically switching between open-loop and closed-loop operation when necessary.  This post explains the unique technologies offered within the AlphaStep family of products and summarizes the numerous integrated options available.  It also can serve as a website navigation guide (video added).

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Topics: Stepper Motors, Absolute Positioning, Alphastep Hybrid Control, Linear & Rotary Actuators, VIDEOS, Gearheads, Software, Network

Reactive vs Preventative vs Predictive Maintenance: What are the Differences?

Posted by Johann Tang on Aug 20, 2019 2:58:24 PM

Along with the advancement of industrial technology, maintenance methods of motion control components of a machine, such as motors, drives, and sensors, have also evolved.  Which method is the most efficient?

The most common method of maintaining a machine after a failure has occurred was the traditionalreactive maintenancemethod.  Realizing the need for improvement, maintenance personnel started to estimate life and replace motion control components before they fail.  This is called the preventive maintenancemethod.  More recently, with the advancement of IIoT (Industrial Internet of Things) and real-time availability of status data, another method was born - the predictive maintenance method.

The three maintenance methods have the same goal of eliminating machine downtime but do it differently.

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Topics: Stepper Motors, Linear & Rotary Actuators, VIDEOS, Network, Application Examples

How Easy Is It to Build a Robot?

Posted by Johann Tang on Jul 19, 2019 8:31:19 PM

Robot adoption is increasing in many industries due to global efforts in reducing long term costs, maintaining quality, and freeing up time for humans to do "human" tasks.  For example, by using a robot to clean floors or restock shelves in a supermarket, human employees can spend more time helping or selling to their customers.  A company can either tap into this robotic trend by buying ready-made robots, or by making their own with less cost. 

If engineering resources are limited, selecting the right components can reduce the difficulty and time for building a robot.

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Topics: Stepper Motors, Robotics, Absolute Positioning, Alphastep Hybrid Control, Linear & Rotary Actuators, Motor Sizing, VIDEOS, Gearheads, Software, Application Examples

Benefits of an Absolute Rack and Pinion System Compared to Other Linear Motion Mechanisms

Posted by Johann Tang on Jul 2, 2019 3:25:24 PM

There are many mechanisms that convert rotary motion of an electric motor to linear motion, such as belt/chain drives, screw drives, rack & pinion drives and even CAM drives.  Each mechanism offers advantages and disadvantages. Choosing the right technology can help increase load, speed, travel distance, or positioning accuracy.

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Topics: Absolute Positioning, Alphastep Hybrid Control, Linear & Rotary Actuators, VIDEOS, Vertical Lifts, Application Examples

Eliminate Motor Speed Fluctuations Caused By Input Voltage or Load Variance

Posted by Johann Tang on Jun 21, 2019 6:57:39 PM

An AC motor can be simple to use, but its speed changes according to the size of the load or amount of voltage supplied.  For an application where keeping a uniform speed is important, there is another type of motor that can improve performance.

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Topics: AC Motors, Speed Control, VIDEOS, BLDC Motors, Application Examples

Improve Motor Performance With Redesigned Compact BLDC Drivers

Posted by Johann Tang on Jun 3, 2019 5:33:13 PM

The BLH Series compact BLDC motors and drivers have been around for a long time, and there is a good reason.  Customers seem to favor the combination of a highly efficient, compact motor and a light weight board type driver that is easy to use.  Having a high torque, flat style hollow shaft gearhead as an option also helps in increasing torque as well as minimizing footprint.

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Topics: Torque Limit (Push Motion, Tension Control), Robotics, Speed Control, VIDEOS, Capping, BLDC Motors, Software