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Motion Control Tips

Automation • Motion Control • Power Transmission

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FAQs + basics

What are Absolute Encoders? Technical Summary for Motion Engineers

October 6, 2011 By Motion Control Tips Editor Leave a Comment

Encoders can be either absolute or incremental. Absolute encoders have a unique code for each shaft position. Or in other words, every position of an absolute encoder is distinctive. The absolute encoder interprets a system of coded tracks to create position information where no two positions are identical. Another feature is that absolute encoders do […]

Filed Under: Absolute Encoders, Encoders, FAQs + basics

What are roller chains? Technical Summary for Motion Engineers

October 6, 2011 By Motion Control Tips Editor 1 Comment

Updated April 2015. || In any motion control system, the object is ultimately to move some kind of load. The component in the motion system that converts electrical energy into mechanical energy is the motor. But the task doesn’t end there. A motor’s output shaft has to connect somehow to whatever the load is. This […]

Filed Under: FAQs + basics, Linear Motion, Mechanical PT Tagged With: Tsubaki

What is HMI Software? Technical Summary for New Engineers

October 6, 2011 By Motion Control Tips Editor 1 Comment

3-HMI-Siemens-Simotion-4.4

Updated June 2019 || Human machine interface (HMI) software is programming that gives operators a way to manage machine command panels. Interaction is through a graphical user interface (GUI) that facilitates information exchange and communication between two types of HMI — supervisory and machine level. Generally, programmers write HMI software for either machine-level HMI or supervisory-level […]

Filed Under: FAQs + basics, HMIs, Software

What are AC motors? Technical Summary for Motion Engineers

October 6, 2011 By Motion Control Tips Editor Leave a Comment

Motors can be classified as either ac (alternating current) or dc (direct current). An ac motor, like any electric motor, converts electrical energy to mechanical energy. AC motors take as their input an ac current, but differ from dc motors in that there is no commutation involved, and can be single or multi-phase. Because ac […]

Filed Under: FAQs + basics, Motors

What are brushless dc motors? Technical summary for engineers

October 5, 2011 By Motion Control Tips Editor 1 Comment

Bodine-INTEGRAmotor-brushless-dc-gearmotor

Updated June 2020. || Brushless dc (BLDC) motors are DC motors that use magnets instead of brushes and a commutator for commutation. The benefit to that is they don’t suffer from brush wear … but the drawback is that they need electronic current-phase commutation. In short, brushless DC motors work like shunt-wound motors, but field flux comes from […]

Filed Under: DC Motors, FAQs + basics, Gearmotors, Motors

What is flexible cabling and power cabling for industrial use? Technical summary

October 4, 2011 By Motion Control Tips Editor Leave a Comment

Updated December 2019. || Engineers can use a multitude of cables (including data, coaxial and instrumentation cables) in industrial settings for control networking, low and medium-voltage power transmission and distribution, and more. Power cables for industrial use Most cables that distribute power to motors are low-voltage designs rated for 2,000 V and below. That said, […]

Filed Under: Connections + Sliprings, FAQs + basics

What are industrial bearings? Technical summary for design engineers

October 4, 2011 By Motion Control Tips Editor Leave a Comment

Updated May 2015 by Lisa Eitel. || Industrial bearings are simple machine elements but are crucial for motion applications. The purpose of a bearing is to reduce frictional forces between two moving parts by giving a surface something to roll on, rather than slide over. A bearing consists of smooth rollers or metal balls and […]

Filed Under: Bearings, FAQs + basics, Mechanical PT Tagged With: igus, LM76, skf

What are Linear Bearings?

October 4, 2011 By Motion Control Tips Editor Leave a Comment

Linear bearings generally use a pad, bushing, or roller system to carry a load on a rail that need not be a straight line.  The rail can be most any length, although that dimension is limited by the actuator. The durability of the bearing is determined by the load and required speed. Furthermore, rails can […]

Filed Under: Bearings, FAQs + basics, Linear Motion, Mechanical PT

Lead Screw Basics

October 4, 2011 By Motion Control Tips Editor Leave a Comment

A lead screw, also known as a power screw, is a threaded rod or bar that translates rotational motion into linear motion. When it comes to translating the rotary motion of a motor to linear motion, there are many different ways of accomplishing this task. Often times in the world of motion control, the battle […]

Filed Under: FAQs + basics, Linear Motion Tagged With: power screw

What are cable carriers? Summary for design engineers

October 4, 2011 By Motion Control Tips Editor Leave a Comment

Motion control systems can vary from simple, straightforward single-axis direct-drive systems with little wiring to large and complex multi-axis robotic systems with a hornet’s nest of cables. This is usually where cabling, which was an afterthought, now takes center stage. Especially where there are lots of cables and wiring, cable management becomes an issue. A […]

Filed Under: Connections + Sliprings, FAQs + basics

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