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Motors

New miniature linear voice coil motors from Moticont

January 22, 2021 By Miles Budimir Leave a Comment

voice coil linear motor

The new LVCM-010-013-01 linear voice coil motor from Moticont is only 0.375 in. (9.5 mm) in diameter and the length at mid-stroke is just 0.81 in. (20.7 mm) long. However, this new miniature voice coil motor has a high force-to-size ratio with a continuous force of 1.0 oz (0.28 N), a peak force of 3.2 […]

Filed Under: Linear Motion, Linear Motors, Motors

What is friction compensation in servo control?

January 19, 2021 By Danielle Collins Leave a Comment

Friction, which is the resistance to relative motion between two bodies, occurs in all sliding and rolling motions. In components that use lubrication to separate rolling or sliding surfaces — such as bearings and gears — there are typically two types of friction: static friction and dynamic friction. Static friction — also referred to as “stiction” […]

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

What is dual-loop control for servo systems and when is it used?

January 15, 2021 By Danielle Collins Leave a Comment

In servo-driven systems, feedback for position, velocity, and/or torque control is typically provided by a rotary encoder or resolver mounted to the motor. But mechanical components and connections in the drivetrain — such as gearboxes, ball screws, and couplings — are not perfectly rigid and introduce backlash, compliance, and windup into the system. This lack […]

Filed Under: Controls, Encoders, FAQs + basics, Featured, Servo Motors

How to size an electric-motor-driven chain-and-sprocket system

January 13, 2021 By Lisa Eitel Leave a Comment

In previous motion-sizing articles, we reviewed how to properly specify (using software) a ballscrew-driven motion axis. Then we reviewed how engineering teams can use a similar software-based approach for sizing rack-and-pinion-based servomotor-driven axes on the same five-axis gantry. Now we’ll explore the process for sizing the components (using that same software) for an electric-motor-powered axis […]

Filed Under: Controls, Drives + Supplies, Gearmotors, Software Tagged With: Yaskawa

What does motor insulation class specify and why is it important?

January 4, 2021 By Danielle Collins Leave a Comment

Any time current flows through a wire — such as the windings in a motor — resistance in the wire, as well as other losses, cause heat to be generated. This heat will eventually transfer to other parts of the motor, causing them to degrade over time. One of the key components affected by this […]

Filed Under: AC Motors, FAQs + basics, Featured, Gearmotors, Motors

New integrated servo motors from Maxon feature IP65 protection

January 4, 2021 By Miles Budimir Leave a Comment

servo motor

Maxon’s new IDX compact integrated servo gearmotor + drive combines a powerful, brushless EC-i motor and an EPOS4 positioning controller, which can be complemented with a maxon planetary gearhead when required. This integrated motor features high torque density, high efficiency, maintenance-free components, and a high-quality industrial housing providing IP65 protection. The IDX also features configurable […]

Filed Under: Featured, Industrial Automation, Integrated Motion Systems, Motors, Servo Motors Tagged With: maxonprecisionmotors

What is inrush current in an AC motor and why does it matter?

December 22, 2020 By Danielle Collins Leave a Comment

inrush current

When an electrical device, such as an AC induction motor, is switched on, it experiences a very high, momentary surge of current, referred to as inrush current. When an AC induction motor is started, the supplied voltage creates a magnetic field in the stator, which induces a magnetic field in the rotor. The interaction of […]

Filed Under: AC Motors, FAQs + basics, Featured

What is a motor control center (MCC)?

December 14, 2020 By Danielle Collins Leave a Comment

motor control center

Manufacturing plants often contain dozen, if not hundreds, of motors — driving everything from packaging and processing equipment to fans and pumps. Motor control centers allow facilities such as these to centralize control of some or all of their motors into one location. The basic structure of a motor control center (MCC) is a metal cabinet […]

Filed Under: AC Motors, FAQs + basics, Featured

Triad of torque, speed and precision applications

December 10, 2020 By Kelsey Zebrowski Leave a Comment

Many applications require drive solutions that have a central opening through which, e.g., light, cables or parts of the application can be guided. Examples of this can be found in optics and photonics for laser steering systems or in automation and robotics for semiconductor handling systems. Until now, conventional systems always resulted in compromises here. […]

Filed Under: Stepper Motors Tagged With: Faulhaber

New energy-efficient, washdown-ready motors for conveying applications from NORD

December 3, 2020 By Miles Budimir Leave a Comment

motors

NORD’s new IE5+ permanent magnet synchronous motors are extremely energy efficient and compact for demanding conveying applications, with smooth surfaces that also make them an ideal choice in washdown and other harsh or highly regulated environments. The existing generation of NORD IE3 and IE4 motors already offer impressive efficiency, but the new IE5+ technology takes […]

Filed Under: Motors Tagged With: NORD

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