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Danielle Collins

What determines worm gear efficiency, and is it really that low?

December 22, 2022 By Danielle Collins Leave a Comment

worm gear

Worm gears are often used for their ability to provide very high reduction ratios (and high torque multiplication) in a compact, single-stage design. But traditional thinking says that these benefits come at the expense of efficiency. Here, we’ll look at the factors that determine worm gear efficiency and how to get the benefits they provide […]

Filed Under: FAQs + basics, Featured, Gears + Gearing

What are biquad and other filter types for servo tuning?

April 7, 2022 By Danielle Collins Leave a Comment

biquad filter

One way to improve servo system performance is to increase the gains in the control loop, allowing the system to respond faster to commands and to settle more quickly, with less oscillation. But increasing the servo gains means that any resonances in the system — typically due to mechanical compliance — are further amplified, which can […]

Filed Under: FAQs + basics, Featured, Servo Motors, Stepper Drives

What is external device monitoring and how does it relate to machine safety?

April 1, 2022 By Danielle Collins Leave a Comment

positively guided contacts

According to the Machinery Directive 2006/42/EC, technical protective measures should be used to reduce risks that cannot be avoided through safe design measures. These technical protective measures include safety devices such as door locks, covers, light curtains, and other equipment that monitors the machine movements. When the safety device controls and external device, such as […]

Filed Under: AC Motors, Drives + Supplies, FAQs + basics, Featured, Industrial Automation, Servo Drives, Servo Motors

What machine safety functions address speed, and when are they used?

March 25, 2022 By Danielle Collins Leave a Comment

machine functional safety

The Machinery Directive 2006/42/EC states that when a machine manufacturer is unable to eliminate the risks of potential hazardous situations (for example, mechanical hazards such as crushing or cutting) through safe design methods, the next step is to reduce the risks through technical protective measures. These technical measures include protective devices, such as door locks […]

Filed Under: AC Motors, Drives + Supplies, FAQs + basics, Featured, Industrial Automation, Servo Drives, Servo Motors

What is Machine as a Service (MaaS) and what are its benefits?

March 11, 2022 By Danielle Collins Leave a Comment

machine as a service

Most of us are familiar with the software as a service (SaaS) business model, in which users pay a fee to access software over the internet, without requiring an application or download to a local machine. The software as a service model made complex software, such as CRM (customer relationship management) systems, more accessible to […]

Filed Under: FAQs + basics, Featured, Industrial Automation, Integrated Motion Systems, Networking + IoT

What are digital twins and how are they used in industrial manufacturing?

March 2, 2022 By Danielle Collins Leave a Comment

digital twins

Manufacturing even the simplest product requires expertise in materials, equipment, operations, and process flow. And the interdependencies of these elements make it extremely difficult — if not impossible — to “get it right the first time” when setting up a new manufacturing line or modifying an existing process. Every element, from the product design to the […]

Filed Under: FAQs + basics, Featured, Industrial Automation, Networking + IoT

How to calculate retaining ring maximum speed (rpm), and when it matters

February 25, 2022 By Danielle Collins Leave a Comment

application

Selecting an appropriate retaining ring for an application typically involves evaluating factors such as installation stress, the radial load exerted by the ring, and the thrust capacity of the ring. And because the groove that holds the ring is integral to the ring’s performance, groove deformation needs to be considered as well. But when an external […]

Filed Under: FAQs + basics, Featured, Springs + Rings + Seals

What are latency and jitter and why are they important to industrial networks?

February 21, 2022 By Danielle Collins Leave a Comment

jitter graphic

Applications that use closed-loop control often require communication networks that provide deterministic, real-time control of data transmission. This means the network guarantees that a message will be transmitted, or an event will be responded to, in a specified, predictable period of time — not faster or slower (deterministic) — and that the message will be transmitted […]

Filed Under: FAQs + basics, Featured, Fieldbuses, Networking + IoT

When is motor output power a useful specification and how is it calculated?

February 8, 2022 By Danielle Collins Leave a Comment

torque speed power curve

In motion applications, motors are typically chosen based on their torque and speed capabilities, using a torque-speed curve that describes the motor’s performance when paired with a specific type of drive and operated under specific conditions. But motors can also be rated, or specified, by their output power. Here, we’ll look at how output power […]

Filed Under: FAQs + basics, Featured, Motors

Motion system design: How to manage inertia mismatch

February 3, 2022 By Danielle Collins Leave a Comment

Motor Load Coupling Inertia

One of the most important parameters when sizing a motion system is the inertia of the load being moved. Regardless of the type of motor being used — AC induction, stepper, brushless DC, or AC servo — the ratio of the load inertia to the motor inertia has an important influence on system performance. If the […]

Filed Under: FAQs + basics, Featured, Gears + Gearing, Motors, Servo Drives

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