Posts Tagged 'Servo Motor'

Do you know the difference between these 10 types of servomotors?

Servomotors are generally used as a high performance alternative to the stepper motor. Stepper motors have some inherent ability to control position, as they have built-in output steps. This often allows them to be used as an open-loop position control, without any feedback encoder, as their drive signal specifies the number of steps of movement to rotate. This lack of feedback though limits their performance, as the stepper motor can only drive a load that is well within its capacity, otherwise missed steps under load may lead to positioning errors. The encoder and controller of a servomotor are an additional cost, but they optimize the performance of the overall system (for all of speed, power and accuracy) relative to the capacity of the basic motor. With larger systems, where a powerful motor represents an increasing proportion of the system cost, servomotors have the advantage….

Click on the link below to read this complete article.

http://www.electromate.com/servo-motors.html

 

Tags:  servo motor, brushless motor, brush motor, BLDC motor, slotted motor, slotless motor, linear motor, voicecoil motor, pancake motor, moving coil rotor motor, iron core motor, frameless motor, direct drive motor

 

maxon’s New BLDC Sterilizable Gearmotor EC 19 and GP 19M

High power up to 120 W, speeds up to 100,000 rpm, sterilizable 1000 times.

Maxon EC19 and GP19M Sterilizable Motor

Maxon EC19 and GP19M Sterilizable Motor

With its modular construction, this new brushless DC motor is available in three performance classes: the cost-optimized EC 19 at 60 Watt, the strong and high-speed EC 19 at 120 Watt and the sterilizable high-end version EC 19 at 120 Watt. The internals of the drives are responsible for their individual characteristics:

  • The EC 19 at 60 W is equipped with a magnetic circuit that is designed for speeds of up to 80,000 rpm. The maximum continuous torque is 12 mNm and the motor contains no Hall sensors.
  • The EC 19 at 120 W has been designed for speeds of up to 100,000 rpm and delivers a high continuous torque of 24 mNm. Versions with and without Hall sensors are available.
  • The EC 19 Sterilizable at 120 W may be sterilized in an autoclave 1000 times. With a maximum permissible speed of 100,000 rpm and 24 mNm continuous torque, this drive also withstands high temperatures and harsh steam cycles. This is achieved through careful selection of materials and through protection of the components such as in the hermetically sealed rotor magnet.

With maxon motor’s winding technology, it is possible to offer various voltage versions. The stator has been designed without slots. Therefore, no cogging torque occurs resulting in excellent control properties and extraordinarily smooth running. Together with an optimally balanced rotor, low-noise and low-vibration operation is easily achieved.

maxon’s new sterilizable planetary gearhead, the GP 19 M is ideal for applications requiring very high speeds – input speeds of up to 40,000 rpm. To accommodate such high speeds, the toothing and materials have been especially designed to minimize friction. A key demand placed on the material is 1000 sterilization cycles. Worth noting is the no-need to disassemble the motor for the sterilization process.   The new 19 mm servo motors are particularly suitable for surgical and dental devices, such as arthroscopic shavers and bone drills. There is also a focus on respirators and CAD/CAM spindle drives.

Click on the following link to view the specification on the sterilizable EC 19 motor and GP 19M planetary gearbox.

The complete Maxon catalog can be viewed at the following link:   Maxon 2015/2016 Complete Catalog.
For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@electromate.com
Toll Free Phone:   877-737-8698
Toll Free Fax:       877-737-8699
www.electromate.com

Tags:  Maxon, maxon motor, Electromate, Servo Motor, Sterilizable Motor, EC19, GP19M, Brushless Motor, BLDC Motor

Three critical factors for servo motor sizing

Reprint of December 30, 2015 Linear Motion Tips article from Design World


Servo motor sizing is often done with the help of a manufacturer’s sizing program, but it’s important to understand the three most critical factors—speed, torque, and inertia—to ensure you select the best-fit motor for the application.

Selecting the right servo motor for a linear motion system is a complex task, beginning with initial assumptions and component selections, which must be checked through a series of calculations and, in most cases, repeated over several iterations until a suitable combination of motor and mechanics is found. Most motor manufacturers offer online sizing tools that make the process easier, ensure that the best components are selected, and help preserve the design engineer’s sanity. But as a designer, or even an end user, it’s important to have an understanding of the three critical parameters of servo motor sizing: inertia, speed, and torque.

Click on the link below to view the complete article.

Three critical factors for servo motor sizing

 

Theory, Application & Operation of Frameless Motor Technology. Live Webinar.

February 23, 2016  11:00 AM ET

Register to watch the webinar on or after February 23.

For many years there seems to have been an engineering mystique surrounding the integration of frameless motor part sets into high performance machine design. This has kept many machine design engineers from jumping in to embed these power and torque dense motor types into their applications.

This webinar will focus on the integration of frameless motors into practical machine design challenges. We will touch on the background and use of embedded motor components, typical application overview, performance improvement expectations, typical design and installation best practices, drive amplifier and feedback considerations, and machine system thermal concerns.

We will also review some basic tools available to help design engineers optimize frameless motor performance in customer machine applications.

Meet the Speaker:

Tom S. Wood Tom S. Wood
Motor Product Specialist
Kollmorgen
Tom is the Frameless Motor Product Specialist at Kollmorgen. Tom has worked with Kollmorgen for over 30 years in various roles integrating motion control solutions as Machine Designer, Servo System Customer, Manufacturers Representative, and High-Tech Distributor.

Register at the link below to watch the webinar on or after February 23.

Webinar Registration

Tags:   Frameless Motor, Direct Drive Motor, Embedded Robotics, Automation, Servo Motor, BLDC Motor, Kollmorgen, Webinar, Electromate, Motion Control

 

AC Servo Motor + Drive Systems from Kollmorgen

Kollmorgen offers various electronic motor drives with advanced control technology, multiple fieldbus connectivity options, and control interfaces. Choose from a broad selection of servo drives in a wide range of input voltages and output power levels.

Kollmorgen drive technology is enhanced when used with both our motor designs and automation controllers. Configuration and programming software is integrated with drive and motor combinations. Kollmorgen drives are also versatile and can run a broad range of standard and specialty motors with various feedback types. Kollmorgen drives adapt to changing technology and many integrate directly with safety solutions to meet new machine safety directives.

KOLLMORGEN AKD SERVO DRIVES AND AKM SERVO MOTORS

Kollmorgen servo drives are used for dynamic motion applications where precise positioning, speed control, or torque efficiency is key. Kollmorgen servo drives range from 300 watts to 50,000 watts of continuous duty power output. Peak outputs Kollmorgen servo drives are impressive with peak operation at 3 times the rated continuous current for a full 5 seconds in certain drives. This is a clear Kollmorgen advantage since many manufacturers can only rate peak operation at 1 second or less. This allows many applications to use significantly smaller servo drives and expands the dynamic performance of the servo drive lineup.

Connectivity is a key aspect in machines so fieldbus options are plentiful. Kollmorgen support many popular ethernet fieldbuses like EtherCAT, Ethernet /IP, Profinet, and SynqNet. Support for traditional fieldbuses is available on certain models as well, including Profibus, Devicenet, CanOpen, RS485, RS232, Sercos II and Sercos III.

Kollmorgen’s family of permanent magnet brushless motors offer an extremely wide variety of size and package types. From frameless pancake motors to high acceleration housed/shafted motors, Kollmorgen offers the most complete range of high performance motors available today. When you combine our vast selection of motors with our family of high performance servo drives, we can satisfy your most demanding application requirements and help you build a better machine, faster.

To assist with the sizing and selection of Kollmorgen’s AC Servo Motor + Drive Systems, Kollmorgen announce the release of MOTIONEERING® Application Engine 6.4.0 – Kollmorgen’s Free premier motion sizing and selection software. This release features the new KBM™ Series Frameless Kit brushless motors with our AKD™ servo drive family, complementing their existing rotary and linear actuation systems. Sizing frameless motors and drive systems has never been easier. Using a mechanism project concept for collecting and saving multiple axes of load information,MOTIONEERING® can automatically calculate application results and compare against a database catalog of systems – recommending to their customers the most optimized set of Kollmorgen system solutions available.

Kollmorgen Motioneering software

The MOTIONEERING® software sizing engine has the flexibility to sum the effects of multiple axes of motion for power supply and shunt regeneration sizing (rotary applications only). Versatile units-of-measure selection options for mechanism and motion profile data-entry, with the ability to convert data into other available units, makes this a convenient international tool. A user-friendly Help file teaches program functions and algorithms used to provide results.

CLICK HERE to view Kollmorgen’s family of AC Servo Motor + Drive Systems

New Torque Motor Family from Tecnotion

Tecnotion adds QTR Frameless Torque Motors to its direct drive product offering.  With low axial height and high torque density, the QTR bridges the size-performance gap.

Direct Drive Motors, also know as Torque Motors, are permanent-magnet direct drive motors that rotate along an axis.  They can be used wherever a rotary movement is required and offer numerous advantages over conventional servo drives.

Torque Motors from Tecnotion are extremely compact, provide an extremely stiff drive train, eliminate the need for time-consuming mounting procedures, are virtually maintenance free and can be integrated directly into the machine structure, while the spacious open inner diameter enables wire and cable feedthrough.  To top things off the entire series comes with completely sealed stators and integrated temperature protection and measurement sensors.

Tecnotion QTR

The direct drive technology of brushless torque motors is an ideal way to enhance productivity, accuracy, and dynamic performance of applications.  This technology lowers costs, shrinks space requirements, and reduces wear and tear.  Torque motors eliminate the need for mechanical transmission components such as gearboxes, belts and speed reducers.  This reduces transmission losses and eliminates the cost and maintenance required for additional components.  And because there is no contact between rotor and stator, there is no mechanical wear, meaning less maintenance and longer life.

Tecnotion QTR Product Overview

Tecnotion QTR Product Overview

At first glance the QTR series stands out because of its cast design, which differentiates it from other torque motors by providing a low thermal resistance and very high torque density, as seen in the QTR’s very flat design, large inner diameter and low stator and rotor mass.  All motors come equipped with integrated temperature sensors and high voltage insulation.  Rather than flying leads, the QTR series is provided with braided power and sensor cables with strain relief integrated in the stator housing, reducing the rate of wear and potential failure.

The QTR motor series offers a very flat design for lower axial height and high torque density.  Features such as a large inner diameter, strain-relieved cable exit, integrated temperature sensors, low thermal resistance, and low stator and rotor mass differentiate the QTR products from other torque motors currently available.

With three outer diameters – 105, 133, and 160 mm – and five build heights, ranging from 17 mm to 92 mm, the QTR series suits applications in markets such as Semiconductor, Medical, Machine Tool, Printing, Rotary tables, Factory Automation, and Robotics. Continuous torque ranges from 1.4 to 63.5 Nm, and speed ranges from 190 rpm to 6918 rpm.

Click on the following link to download the Tecnotion Torque Motor Catalog

For more information, please contact:

EDITORIAL CONTACT:

Warren Osak
sales@electromate.com
Toll Free Phone:   877-737-8698
Toll Free Fax:       877-737-8699
www.electromate.com

 

Tags:  Tecnotion, Electromate, Torque Motor, Direct Drive Motor, Servo Motor, Automation

Understanding the Linear Shaft Servomotor

Nippon Pulse’s Linear Shaft Motor is a brushless, high-precision direct drive linear servo motor with a tubular design.  The motor consists of a magnetic shaft and coil assembly (forcer), and is driven and controlled by the flow of current.

The Linear Shaft Motor can replace ball-screws, pneumatics, U-shaped motors and other linear motion systems.

Design Concepts of the Linear Shaft Motor

  • Simple: Two parts and a non-critical air gap
  • Non-Contact: No wearing and maintenance free
  • High Precision: Ironless design and all the magnetic flux is used

Linear Shaft Motor Specification Overview

  • Variety of shaft diameters, ranging from 4mm to 100mm
  • Stroke lengths of 20mm to 4.6M
  • Achievable peak force of 2340N
  • Maximum continuous force of 585N

Advantages of Linear Shaft Motors

The Linear Shaft Motor is a simple, high-efficiency, high-precision motor that requires no maintenance over its lifetime.  The servo motor consists of only two parts: a magnetic shaft, and a “forcer” of wound coils.  The Linear Shaft Motor offers ultra-high precision because it has no iron in the forcer or shaft, giving you the precision and zero cogging expected in a coreless design while providing the stiffness expected in an iron-core motor.

Because the forcer coil completely wraps around the shaft’s internal magnets, all the motor’s magnetic flux is efficiently used. This allows for a 0.5mm to 2.5mm nominal annular air gap between the shaft and forcer.  This air gap is non-critical, meaning there is no variation in force as the gap changes over the stroke length of the device.

Nippon Pulse’s Linear Shaft Motor can be used in a variety of applications, including pick-and-place machines and dispensing machines.  Applications that require smooth, precise movements and high accuracy will benefit from the Linear Shaft Motor.  If your application has varying force requirements or low-power/high-efficiency requirements, contact an applications engineer to learn how your application can benefit from the Linear Shaft Motor servomotor.

Applications of the Linear Shaft Motor (LSM)

  • High-speed pick-and-place machines
  • High-accuracy pick-and-place or dispensing applications
  • Scanners that need smooth and precise movements
  • Long-life and low-maintenance expectations
  • Applications that require low power and high efficiency

More information on the Linear Shaft Motor Family from Nippon Pulse can be viewed at-

http://www.electromate.com/assets/catalog-library/pdfs/nippon-pulse/NPM_Linear_Shaft_Motor_catalog.pdf

For more information, please contact:

EDITORIAL CONTACT:
Warren Osak
sales@electromate.com
Toll Free Phone:   877-737-8698
Toll Free Fax:       877-737-8699
www.electromate.com

Tags:  Nippon Pulse, Electromate, Linear Motor, Shaft Motor, Linear Shaft Motor, Servo Motor, Automation, DC Motor, Tubular Motor


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