What is a Servomotor?

Nailing down precisely what a servomotor is can be a tricky exercise, but basically the hallmark of any servomotor is the presence of feedback and closed-loop control. Servomotors are able to provide precise control of torque, speed or position using closed-loop feedback. They also have the ability to operate at zero speed while maintaining enough torque to maintain a load in a given position. Servomotors have several distinct advantages over other types of motors. For starters, they offer more precise control of motion. This means they can accommodate complex motion patterns and profiles more readily. Also, because the level of precision offered is high, the position error is greatly reduced.

All servomotors have essentially three components; an electric motor, a feedback device, and some type of electronic control.

The electric motor itself can be either an ac or a dc motor. Under the dc heading, brushed dc servomotors are generally less expensive than brushless servos, but do require more maintenance due to the brushes needed for motor commutation.

Brushless servomotors are more expensive than brushed dc motors. Generally, these are used in applications requiring higher torque. Brushless dc servomotors are highly reliable and virtually maintenance free. However, the drives for brushless dc servomotors are more complex because the commutation is done electronically rather than mechanically as in the brushed dc motor.

Another way to classify servomotors can be as either single-phase or three-phase motors. Motors of the single-phase variety can range from the simple and inexpensive brushed dc motors mentioned above to voice coils for small micro- and nano-positioning applications.

Servomotors also require a form of feedback, often with the feedback device, such as an encoder, built right into the motor frame. The feedback signal is needed by the control circuitry to close the control loop. It is this closed-loop control that gives servomotors their precise positioning ability.

Lastly, the control circuitry typically involves a motion controller, which generates the motion profile for the motor, and a motor drive which supplies power to the motor based on the commands from the motion controller.

Servomotors are used in many different industrial applications from machine tools, packaging machinery, communications and robotics applications to newer applications such as solar panel control and a broad range of automation control applications. The diversity of applications means that servomotors are designed for general-purpose indoor environments but also for specialized situations requiring them to withstand extreme temperatures and pressures outdoors as well as the special demands of food processing industries in washdown environments.

WITTENSTEIN Introduces New Line of Servo Motors

Bartlett, Ill. – WITTENSTEIN’s cyber motor technology unit has developed a new range of servo motors. This new high-performing technology was designed around a modular concept; to allow users to select frame sizes, lengths and options for the optimal motor to match their application. 

The High Performance Servo Motors have all the necessary characteristics to optimize productivity and efficiency for your processes. With a compact design and reduced inertia for high dynamic performance, these servo motors offer unexcelled efficiency with high continuous power.

High Performance Servo Motor frame sizes and corresponding lengths are:

Servo Motor MRSH049A (available in lengths of 15mm, 30mm, 45mm, 60mm)

Servo Motor MRSH064A (available in lengths of 15mm, 30mm, 45mm, 60mm)

Servo Motor MRSH130A (available in lengths of 30mm, 60mm, 120mm, 230mm)

Servo Motor MRSH178A (available in lengths of 135mm, 195mm)

Servo Motor MRSH178C (available in lengths of 135mm, 195mm)

www.wittenstein-us.com

New Brushless DC motors from Maxon

Fall River, Mass. – Maxon’s EC16 brushless DC servo gearmotor has had a number of modifications and improvements. The most obvious changes are the 60° winding pattern, the NdFeB high performance magnet and the higher power output. Plus, the shortened motor type’s sterilizable version. 

The new EC 16 is available with up to five winding types as well as with hall sensors or sensorless. Four high-power motors are available; 30W or 60W and sterilizable or non-sterilizable.

The new design features a torque/speed gradient reduced by approximately 60% and maximum continuous torque increased approximately by 80%. Other key improvements include higher stability, quiet running, larger bearings, higher forces, improved performance and higher torque. Coupled with gearheads that are also sterilizable, this drive is ideally suited for the most demanding medical and hand tool applications.

Visit www.maxonmotorusa.com for more information.

New Catalog from Quicksilver Controls Highlights Servo Motion

Covina, Cal. – Quicksilver Controls’ new 48-page catalog provides a review of the full range of QuickSilver’s motors, drives and controls that feature their high pole count, 2-phase permanent magnet motors when operated in a vector control mode as a full 4 quadrant servo motor system. QuickSilver’s electronic drives and controls use size 17, 23, and 34 hybrid step motors as full brushless servo motors. Copious motor performance torque-speed curves are supplied. 

Continuous torque for the smaller size 17 brushless PM motor starts at 35 oz-in at 900RPM (3W) duty up to 700 oz-in at 1500RPM (770W) for the size 34 brushless servo motor. Maximum speeds are 4000RPM. The SilverDust controls product line has RS232, RS435 and CANopen protocols with Ethernet and Modbus TCP as an option. Currents range from 3.5A in the smaller size 17 and 23 SilverDust drives and up to 10A in the larger size 34. Typical input voltages are 12 to 48VDC.

The SilverDust controller uses sophisticated motion control algorithms to maximize the high torque capability and properly handle very high load inertias reaching a 100:1 inertia mismatch.

For more information contact QuickSilver Controls Inc. at www.quicksilvercontrols.com.

Integrated Brushless ServoNOW™ Servo System from Bison Gear

St. Charles, Ill. - Bison’s integrated brushless ServoNOW™ servo system for single axis applications was designed to meet basic motion needs by limiting programmability and using simple positioning and speed control applications. This state-of-the-art design reduces the amount of time and money spent on overall set-up and installation. 

All input and output functions of the ServoNOW™ are programmed into the set-up feature through a simplified indexing type command structure making it able to interface to nearly any logic input and output. Analog inputs can be selected and set-up to control the position or velocity of the system. All set-up and installation can be accomplished with any standard PC with a built-in USB port. Free, downloadable host software called QuickLaunch is available with the package and loads on any Windows PC.

The ServoNOW™ incorporates an inclusive closed loop brushless servo motor with built-in driver, controller, magnetic encoder and 110/230VAC universal power supply all in one complete, compact package. Four programmable digital inputs and outputs, analog I/O (0 to 10VDC or 4 to 20MA, 12 bit) and position resolution of 4096 counts per revolution is included.

There are 5 standard, 34 frame models with different variations of high speed (6900 rpm) and high torque (310 in-lbs) features which can be customized to meet application specific requirements.

ServoNOW™ products are part of Bison’s In-Stock, Instant-Ship (ISIS) program that supports Bison’s distribution partners and web customers offering same day shipment for orders received before noon (Central Time).

www.bisongear.com

Extreme Motors from WITTENSTEIN

Bartlett, Ill. – WITTENSTEIN provides unique servo motors for all environments, including motion systems operating in the most extreme conditions. 

Extreme temperature motors are used in the most demanding of environments – from space to the ocean floor. These servo motors are small but designed to handle conditions where extreme temperature is a demanding requirement. Reliable systems will operate at temperatures ranging from -70°C to 210°C.

Radiation-hardened motors are custom designed to their own unique specifications. With the latest FEM-development software and proprietary motor programs, rad-hard servo motors are suited for applications in military and aerospace due to their highly accurate positioning, dynamic acceleration and high constant stability.

Ultra high vacuum (UHV) motors require the use of special materials and extreme cleanliness due to their environmental restrictions. These servo motors offer a range of vacuum levels for a variety of applications. Time and cost savings are significant due to high reliability and faster system pump-down.

For more information, contact WITTENSTEIN at info@wittenstein-us.com.

www.wittenstein-us.com

Animatics’ Integrated Servo Offers 900W Peak Power

Santa Clara, Cal. – Animatics Corporation announces the latest release in their OEM Series of SmartMotors™, the new SM3416DT-PLS2. This technology now packs greater than 900W of peak power, over 1 HP, into the cube-shaped Integrated Servo.

The motors feature high-speed position capture for demanding packaging, labeling, and vision registration applications. They also feature advanced torque over-shoot braking for added safe stopping of high moment of inertia loads and Mode-Torque-Brake for fast smooth stops during E-stop or other faults. A new 8-pole, segmented stator design achieves a higher energy density as well as better efficiency.

The OEM Series SmartMotor is a complete, programmable, motion control system that is known for being compact, user friendly, and cost-effective. Using a patented design, SmartMotors incorporate a servo motor, amplifier, encoder and motion controller into the same integral frame.

Similar to other members of the OEM Series of SmartMotors, SM3416DT-PLS2 is unique by virtue of its extreme low cost and high continuous and peak output torques. It delivers as much as 480 oz-in of peak torque while maintaining over 200 oz-in of continuous torque with a maximum speed capability of over 5,000rpm in a standard NEMA 34 frame. The entire line of OEM Series SmartMotors is priced competitively for high volume, OEM applications.

www.animatics.com

Animatics Introduces the Class 5 SmartMotor™

Animatics introduces the world’s most powerful integrated servo: the Class 5 SmartMotor featuring patent-pending Combitronic technology.  In 1994, Animatics introduced the first fully integrated SmartMotor servos featuring an internal brushless motor, encoder, controller and amplifier, and have been improving and perfecting the technology ever since.  Building upon nearly 15 years of innovation and advancement, the new Class 5 SmartMotor shatters every precedent set by the previous generation SmartMotor servos.

With the optional feature of patent-pending Combitronic technology, more than 100 SmartMotor servos can be linked over CAN to create what the programmer experiences as one giant multi-axis controller.  Combitronic allows any SmartMotor to read from, write to, and control any other SmartMotor to ensure the highest dependability and no data collision or loss.  One program can be written in one motor to control ALL, or each motor can have its own program, sharing resources with every other, for one giant multi-tasking, multi-processing system.  Even without the Combitronic option, Class 5 SmartMotor communication speeds blaze at up to 115.2kBaud in both the RS-232 and RS-485 ports.  Isolated, 24V I/O has been added, program execution speeds are vastly increased and the industries most advanced Gearing, Camming and Contouring functions have been added.

Animatics
www.animatics.com

Kollmorgen introduces new AKM8 Servomotors

Kollmorgen introduces AKM™ 8 Servomotors – the latest addition to the company’s global, field-proven AKM motor series.  With an unrivaled feature-set to satisfy global requirements right from the base hardware, AKM8 motors deliver higher torque density to cover the broadest torque/speed range in a housing that is 30% shorter than any standard motor in its class available today.  As a result machine builders can reduce the size of their machines without sacrificing performance, or they can select a longer stack length to achieve higher performance without having to specify a larger, more expensive motor that would typically require mechanical changes to the machine.

The AKM8 is available in two standard flange/shaft combinations designed to seamlessly integrate with 80% – 90% of machine builder needs around the globe, with no modifications to the customer flange needed.  As standard, AKM8 windings are designed to operate at 230, 400, 480 VAC, eliminating the need for voltage transformation for machines that will be deployed in various geographic regions.  AKM8 motors feature Class F insulation for a temperature rating of 155°C, and provide stall torque from 75 to 180 Nm, operating speeds up to 2500 rpm, and power up to 19.8 KW, with bearing lifetime rated to 20,000 h.  These motors are RoHS and REACH compliant, UL listed, and carry the CE mark.

All AKM series motors feature a robust one-piece housing with potted windings for maximum wire isolation and excellent heat dissipation, resulting in robust performance and long life in even the most demanding application environments.  Market-standard high resolution feedback options for high- performance/precision or rugged environments are available, including Endat, BISS, Hiperface, and resolver option, among others.  AKM motors are available for low or high speed (to 8000 rpm) applications, with windings that can be applied to all standard global voltages including 75 VDC, 120, 240, 400 and 480 VAC.  A number of options are available to satisfy wide ranging application needs including a reinforced bearing to handle higher radial force, a sealing option to achieve IP67 protection at the flange, as well as varied connectivity and mounting options.

For truly unique applications where the more than 200,000 standard AKM offerings don’t meet the requirements of a given application, the Kollmorgen engineering support team can work alongside OEMs to customize a solution to satisfy their needs.

Kollmorgen
www.kollmorgen.com

Brushless DC Servo Motors with Integrated EtherCAT Interface from Dunkermotoren

Elgin, Ill. – Dunkermotoren’s BG family of servo motors, with an output power range of 40 to 500 watts, now come equipped with an EtherCAT interface. The CANopen over EtherCAT (CoE) function allows the servo motors to act as slaves in an EtherCAT network. CANopen over EtherCAT uses the same objects as CANopen. These compact drives have been available for many years with a CANopen field bus interface, and more recently with an interface for Profibus DP (V1), which has become established in the market.

EtherCAT is an Ethernet-based field bus system that meets stringent real-time requirements and currently shows the highest rate of growth in terms of installed nodes in Ethernet-based field buses for industrial automation applications. Dunkermotoren uses standardised DSP402 objects for positioning, monitoring and configuring servo drives.

For more information, email sales.usa@dunkermotoren.com or visit www.dunkermotoren.com.

www.dunkermotoren.com

High-Performance Family of Spindle Motors from Siemens

Chicago, Ill. –Siemens Industry, Inc. has introduced the new 1PH8 family of high-performance induction motor drives and servomotors.  Available in a wide power range, from 2.8 kW up to 1340 kW, these new motors provide excellent dynamic response, smoother operation and lower vibration levels. The new line combines induction and high-powered servo technologies to give machine designers and end-users a greater degree of efficiency and more precision in the production process.

Designed for the specific performance and environmental requirements of a main spindle on a CNC-equipped machine tool, these new induction motors have applications in other heavy-duty markets, such as print unit drives on printing presses, rolls and web handling on converting and packaging machinery, crane and hoist elevation, extruders and injection molding machines, metal-forming and welding machinery, assembly line robotic articulation, and materials handling gantries among others.

The modular motor platform concept offers designers various options for selecting the optimum unit for an application including assorted bearing designs for increased cantilever forces or increased speeds up to 20,000 rpm, shaft designs in a solid or hollow configuration to match the mechanical interface, forced-air or water-cooled models, induction or synchronous servomotor design for mating the right motor to the size requirements and dynamic response needs with both styles featuring the same mechanical and electrical interface to simplify engineering, and absolute or incremental encoders built-in for high-resolution feedback and enhanced motion control in high power level applications.

The 1PH8 motor spindle line is fully compatible with the Siemens Sinamics S120 drives platform to achieve faster commissioning and improved control response.  All motors in this new family feature the Drive-Cliq serial interface and electronic nameplate recognition for plug-n-play start-up.

Earlier families of Siemens motor designs can be upgraded to the new 1PH8 series without difficulty, including the 1PH7, 1PL6, 1PH4, 1PM4, 1PM6 and the upper range of the 1FT6.

For more information, visit www.usa.siemens.com/motioncontrol.

Dunkermotoren’s new high-performance BLDC motors

Dunkermotoren USA has developed a family of high performance modular brushless permanent magnet motors driven by an integrated servo motor drive. The family is composed of 2.95 inch (75mm) squared high power density motors in 3 stack lengths. The family motor peak torque varies from 22.1 in-lb (BG75x25), to 44.2 in-lb (BG75x50), and up to 55.7 in-lb for its largest BG75x75. Axial lengths are respectively 4.53” (115mm), 5.51” (140mm), and 6.50” (165mm).

The modular construction of the BG75 series is available with integral electronic drive and precision position encoder with 4096 ppr. The power electronics provides a range of input voltages from 10 to 50VDC, and delivers up to 50A peak for this motor series.

Integral motion control system types include the BG75x..SI that regulates speeds to 1% over a 70 to 4096rpm speed range, the BG75x..PI that positions within 10.5 arc.min, and the fully programmable BG75x..MI that has fieldbus master capabilities, and can also execute PLC functions. The available communication protocoles are CANopen and Profibus.

Dunkermotoren
www.Dunkermotoren.com

Victor’s Vturn 36 with direct coupled servo motors eliminates backlash

Subcontractor Qualitek (www.qualitek.com), impressed by the performance of the two Vturn lathes and services provided by Victor Europe (www.victoreurope.com), has purchased a Vturn 36 from Victor once again.

The Victor Vturn 36 features a bed length center distance of 50″, a swing over bed of 26.77″, and a maximum cutting diameter of 20.9″, which make it ideal for large chucking tasks.

The tool’s slant bed design, together with a rigid spindle and torque-tube box ways, results in a rigid machine tool that is ideal for the heavy cutting of several materials such as hardened steels.

The Victor’s Vturn 36′s spindle motor, which is coupled with a two-speed gearbox, is balanced to deliver enhanced machining performance for heavy cutting at low rpms. Its pre-tensioned, double anchored ballscrews further improve machining accuracy by minimizing the thermal growth effects, while direct coupled servo motors eliminate backlash.

“Even though we had been impressed by the performance of our two older Victor lathes, prior to the purchase of the Vturn 36, we examined the merits of several alternative, large CNC lathes. Although our first class experience with the company’s machine tools may have influenced our decision, I truly believe that the Victor Vturn 36 best met our long list of criteria. In fact, the rapid payback on investment we have experienced with Victor machines means that we hope to be purchasing a further bar fed, Victor CNC lathe in the near future,” said John Tovey, managing director of Qualitek.

National Instruments Releases New High-Performance Servo Drives and Motors

National Instruments announces new AKD Servo Drives and AKM Servo Motors that make it possible for engineers and scientists to easily build scalable, distributed motion control systems. The new products simplify setup and configuration for deploying custom motion applications to any NI real-time controller supporting NI EtherCAT technology including NI CompactRIO, PXI real-time controllers and NI industrial controllers. Additionally, National Instruments is releasing the NI LabVIEW 2010 NI SoftMotion Module that provides support for NI EtherCAT drives for simplified motion application development.

The new AKM brushless servo motors provide superior dynamic performance, are available in four different frame sizes and feature high torque, density and speed ranges. The motors use low-inertia rotors and feature low-cog, low-harmonic distortion magnetic design. The motors also are perfectly matched with NI servo drives and provide plug-and-play configuration with integrated Smart Feedback Device (SFD) technology and simplified cabling.

The new AKD Servo Drives feature simplified setup and configuration through EtherCAT technology and integration with the LabVIEW project, a feature in LabVIEW software that engineers use to group together LabVIEW and third-party files, create build specifications for executables and deploy or download files to hardware targets. The new drives deliver cutting-edge technology and performance with torque loop updates in 0.67 μs, and velocity and position loops at 62.5 μs and 125 μs. The AKD Servo Drives provide a solution for a wide range of applications, from basic torque-and-velocity applications to indexing to multi-axis programmable motion, using graphical system design.

The new motors and drives provide seamless integration with LabVIEW graphical programming through the LabVIEW NI SoftMotion Module to deliver graphical development for custom motion control applications. With the module, engineers and scientists can use the LabVIEW project to configure motion axis settings, test configuration, tune motors and quickly develop a custom motion application. The new version of the NI SoftMotion Module features an updated interactive configuration and a high-level function block API for increased ease of use and makes the execution of motion applications on a Windows-based system possible. In addition, the new module easily connects to the new drives and motors as well as third-party drives and motors using NI C Series drive interface hardware.

Readers can visit www.ni.com/motion to learn more about the new servo drives and motors and NI motion control software.

National Instruments
www.ni.com

MAG introduces new HyperMach™ GTi Series Five-Axis titanium aerospace profilers with water-cooled servo motors

MAG (www.mag-ias.com) is proud to announce the release of the new HyperMach™ GTi series five-axis titanium aerospace profiler for efficient processing of large parts like door edge frames, spars and bulkheads, or nested part groups. The company will showcase a new HyperMach H4000 GTi with hard-metal cutting demonstrations using the latest five-axis HSK100A 6000rpm/850Nm high-torque geared spindle.

The five-axis HyperMach GTi series, which is developed for high-output machining of larger monolithic titanium aerospace parts, turns the profiler concept on the side in a fixed-column, traveling table arrangement. Its modular machine design is also available with part capacities from 6.6×13.1 ft (“2×4 m”) to 6.6×26.3 ft (“2×8 m”). Unlike other T-type machine designs – which require frequent re-alignment and lose up to 80% of their stiffness to maintain accuracy – the patented structural link of HyperMach GTi gives lock-up between the column and the X-axis table base to give stiffness for aggressive cuts in the upper limits of the workzone.

Its X-axis table/pallet receiver gives feed rates up to 2000 inches/min (“50 m/min”), while the Y-axis can reach vertical speeds up to 1378 inches/min (“35 m/min”) to minimize parasitic time. Water-cooled servo motors can be used on X, Y and Z axes of the GTi series machines to maximize performance for high deceleration/acceleration and feed rates and to eliminate thermal influence of the motors on positioning accuracy. Its spindle carrier rotates at 10 rpm (“60 degrees/sec”) in A and C axes, which is powered by worm/wheel drives. The scale/encoder feedback on all five axes gives accuracy above the capabilities of other horizontal machines, and the optional Volumetric Error Compensation package from MAG can enhance the GTi series machine’s volumetric performance by 50% or more. The machines come standard with the 72-tool magazine, which is field expandable from 110 to 142 tools.

High-speed MODBUS with Integrated Servo Motors from JVL

JVL Industri Elektronik A/S now offers yet another feature: The latest firmware for the integrated servo motors MAC400 and MAC800 now supports the MODBUS RTU protocol.

The implementation supports the Read Holding Registers and Write Multiple Registers commands, which will give R/W access to all motor registers at speeds up to 1 Mbit/s, though typically the PC standard rates of 9600..115200 and 230400 bits/s would be used.

The implementation uses the original V1.1 version of the MODBUS protocol for maximum compatibility. For systems requiring a 2-wire RS-485, the MAC00-P4 interface module is used. For 4-wire RS-422, the MAC00-FSx modules or one of the MAC00-Bx modules are used.

MODBUS is generally considered the most widely used serial communications protocol in the industry.

JVL International
www.jvlusa.com

New Option Module for MAC Servo Motors

The MAC00-B41 is a new module intended to be used for the integrated MAC servo motors type MAC400 and MAC800.

The module offers the following extended I/O functions :

- 6 digital I/O (24V tolerant)
- 2 analogue 12 bit inputs
- 2 multi function RS422 channels
- Dual supply feature for safe motor stop
- Galvanically isolated RS232 and RS485
- New simple and robust internal connector
- M12 industrial connectors for simple and safe connection

The module is primarily intended for dispenser applications where a very fast motor start and stop function is needed. The start and stop jitter is les tha 50µs and syncronization with an external encoder is possible.

In addition the module contains a galvanically isolated RS232 and RS485 interface to be used for setup and diagnosis or permanent connection in a network.

Later this year additional software features are planned, such as fully programmable PLC with high speed I/O´s.

JVL International
www.jvlusa.com

Slotted Brushless DC Servo Motors

Pittman® brand Series N2300 slotted brushless DC servo motors incorporate internal Hall sensor feedback for linear speed-torque characteristics, high starting torque, and variable speed control with appropriate control electronics. Their 6-slot lamination design contributes higher power, faster acceleration, consistent operation, and longer service life.

These brushless DC motors are ideal for a wide range of industry applications, including data storage, medical and biotech, semiconductor processing, automation, and others requiring high performance and reliability.

The motors (2.25 in. in diameter) are available in four standard stack lengths (1/2 in., 1 in., 1-1/2 in., and 2 in.) and integrate high-energy neodymium magnets for optimized performance. Depending on model, they can achieve peak torques up to 488 oz-in and speeds up to 7020 rpm at continuous torque for standard motors at rated voltages.

Other standard features for all versions include 3-phase stator, 4-pole rotor, and shielded ball bearings. Motors can additionally be equipped with planetary or spur gearboxes and optical encoders to satisfy particular application requirements.

Mounting configuration is consistent with NEMA 23 standards. Modular motor design facilitates customization with options including modified shafts, multiple windings, and brakes, among others.

AMETEK Technical & Industrial Products, Inc.
www.ametektechnicalproducts.com

High-performance, Compact Servomotors for Demanding Motion Control from Siemens

Elk Grove Village, Ill. – Siemens has introduced new motors to its 1FT7 family, a line of high-performance servomotors for such demanding motion control applications as machine tool CNC interpolation and production machine web handling.

The new additions include a forced ventilated and water-cooled motor, complementing the convection air-cooled 1FT7. A new high dynamic design is also available. This design features low rotor inertia, making these motors practical in applications where it was previously impossible to drive a servomotor. Such applications include sorters in the printing industry, which previously required mechanical cams, but can now use electronic cams for better energy efficiency and less wear.

Their use results in shorter machine cycles due to higher dynamic response, gained through a 30% shorter design and 4x overload capacity versus 3x on the predecessor family of servos. Less downtime results from the new rigid vibration-insulated encoder mounting. This design also enables OEMs or end-users to exchange the encoder in the field in less than five minutes, without encoder alignment. High-resolution encoders, currently up to 22-bit, let these servos become highly precise motion control system components.

Start-up and commissioning personnel will appreciate DRIVE-CLiQ, the Siemens electronic nameplate and digital encoder interface on this new servomotor. It simplifies start-up or replacement by not requiring manual parameterization of the axis, as the drive reads all that data from the electronic nameplate stored in the encoder system. With this feature, these motors become essentially plug-and-play devices. The drive automatically recognizes the motor and optimizes the parameterization accordingly. This digital encoder interface further allows users to standardize on one signal cable type for all the different feedbacks offered with the 1FT7 motors.

For a catalog or more information on these new servomotors, please contact Siemens at 847-640-1595 of fax at 847-437-0784.

www.usa.siemens.com/motioncontrol

JVL Integrated Motors

JVL offers compact and versatile integrated motors. They offering connection to a wide range of bus systems such as CANopen, Devicenet and Profibus as well as Wireless Bluetooth, WLAN and Zigbee systems.

JVL also offers complete motion control solutions. This includes a wide range of gears that fit directly on the motors for any application:

Low Cost Planetary
If the application is cost sensitive and high performance is not needed the HMGH series is the right choice.

Worm Gears
If cost is important and a 90° angle is also needed – then Worm gear boxes, the HFOS series, should be the first choice.

High Performance Planetary
When an honest hard working Planetary gear box is needed think of the HTRG series. They provide standard backlash of 15 or 10 arcmin (1+2 stage) and also high precision reduced backlash of either 5 or 3 arcmin.

Backlash free Robot Gears
Combine bearing and backlash free gear box into one ultra compact unit – the HSPG reducer. These gears offer unbeatable specs and performance.

JVL International
www.jvlusa.com

Pittman 8000 Series Brush DC Motors

Pittman® “Series 8000” brush-commutated DC motors feature a 7-slot skewed armature design to minimize magnetic cogging (or reluctance torque) and promote smooth and quiet operation. This family of motors offers high performance and reliability to power applications ranging from data storage and medical equipment to semiconductor processing and automation machinery, among others.

These motors are available in three lengths (2.070 in., 2.195 in., and 2.445 in.) and can achieve peak torques up to 16.8 oz-in and speeds up to 9020 RPM at continuous torque for standard motors at rated voltages. Speed, voltage, current, and torque characteristics can be varied to satisfy particular application needs.

Standard features for all models include, 2-pole stator, neodymium magnets, heavy gauge steel housing, silicon steel laminations, and copper graphite brushes. Commutators are diamond turned after armature assembly to promote optimum concentricity and long brush life. Windings are resin-impregnated for greater reliability in incremental motion applications.

Modular construction enables their assemblies to be customized with alternative brush materials, optical encoders, timing belt pulleys, brakes, cables, connectors, modified shafts, and RFI suppression or other special configurations to meet application demands. Motors can be equipped with planetary or spur gearboxes as specified.

AMETEK Technical & Industrial Products
www.ametektechnicalproducts.com

400W MAC400 Integrated AC Servo Motor

A unique feature on the market for integrated servo drivers is the JVL MAC400 motor’s provision of both 3 x nominal torque at peak torque and full peak torque at all speeds.

This means that the power of the motor can be fully utilized. Equally important is the fact that in the majority of applications a smaller motor rating can be used, since peak torque is normally only required during acceleration or braking (deceleration).And this means it is possible to achieve more compact machinery at lower prices.JVL has had these 2 characteristics as key parameters throughout the development of the entire range of MAC Integrated Servo Motors — and triple-torque with flat torque characteristics therefore also applies to the MAC050…141 and MAC800 motors.

MAC400 thus delivers 1.2kW peak, while MAC800 delivers 2.2kW peak.Given these characteristics, it is quite remarkable that JVL’s R&D department achieved this performance without the use of a cooling fan, using only cooling fins. After the extensive development work, JVL now expects to have the MAC400 UL recognized. Already now the MAC400 is UL pending.

www.jvlusa.com

Watertight Integrated AC Servo Motors

JVL’s large MAC800 motor (750W) is now available in a model that offers IP65 protection. This makes the MAC800 well-suited for applications in more demanding environments common in the food processing industries.

The IP65 protection of the motor has been achieved by replacing the ventilator built into the cooling fins with large fins. In addition, a water-tight seal of the axle bearing has been achieved using an IP67 Rulon® Teflon bush. This has very low friction and requires no lubrication. The flange and shaft are made of stainless steel. Note that the expansion module used must also fulfil IP65 requirements. The motor in the picture is furthermore equipped with a brake.

www.jvlusa.com

Small Integrated Servo Breaks 1HP Barrier

Santa Clara, CA – Animatics Corporation announces the latest release in their OEM Series of SmartMotors™, the new SM3416DT-PLS2™. The SM3416DT-PLS2 features an innovative new 8-pole, segmented stator design with higher copper filling factor compared to conventional techniques and the new design achieves a higher energy density as well as better efficiency that results in more torque capacity. This technology now packs greater than 800 Watts peak power, over 1 HP into the popular cube-shaped Integrated Servo. Also added to the design is a more advanced registration function for particularly demanding packaging and labeling applications.

The OEM Series SmartMotor™ is a complete, programmable, motion control system that is known for being compact, user friendly, and cost-effective. Using a patented design, SmartMotors incorporate a Servo Motor, Amplifier, Encoder and Motion Controller into the same integral frame.

Similar to other members of the OEM Series of SmartMotors, SM3416DT-PLS2 is unique by virtue of its extreme low cost and high continuous and peak output torques. It delivers as much as 480 oz-in of peak torque while maintaining over 200 oz-in of continuous torque with a maximum speed capability of over 5,000rpm. The entire line of OEM Series SmartMotors™ is priced competitively for high volume, OEM applications. Featuring standard NEMA 34 frame dimensions, the SM3416DT-PLS2 will meet unique customer requirements with a very familiar package.

www.animatics.com

MicroMo Brushless DC Servomotors

MicroMo’s introduction of the BX4 series of brushless DC servomotors emphasizes its position as an innovative market leader in highly integrated miniature drive systems. Using the latest production methods, some specially developed by MicroMo, the company has come up with a modular design that is limited to just a few components and entirely eliminates the need for adhesive-bonded joints. Despite the compact dimensions, the new four-pole concept of the series ensures a high continuous torque of up to 12 mNm, with a flat gradient of the n/M aspect curve.

Notable features are the smooth running operation and the particularly low noise level. Thanks to its electronic commutation, the brushless servo motor series is characterized by a much longer service life than mechanically commutated drives. In the basic version the commutation is provided by an external control, the flexible motor concept of the BX4 series also offers versions with integrated speed controller or integrated encoder. The encoder version is available in four different preset resolutions: 32, 64, 128, or 256 quadrature impulses per revolution. It is available with an optional line driver and differential output signal. In addition to mechanical speed adjustment, the new planetary gearheads of the 22F series also allow a temporary torque increase up to 1500 mNm. Designed with one to four stages, the precision gearhead in steel 21 offers finely graduated reduction ratios, and the diameters can be combined in conformity with the BX4 drives.

www.micromo.com

Integrated AC Servo Motor

In recent years, integrated brushless servo motors from JVL have achieved a very high reputation throughout the world for their ingenious design. The existing range of 50 to 141W and 800W motors has now been supplemented with the introduction of a mid-range 400W model offering 1.3 Nm up to 3000rpm and shortly up to 1200W for highly dynamic applications.

All of these motors are small, compact, and easy to install and set up. The driver, controller, encoder and Hall sensor are all integrated within the motor in a robust, splash-proof housing. The basic motors offer the following standard features:

•Operating commands from PC/PLC via RS232/422/485
•Pulse/Direction or quadrature inputs for electronic gearing
•A+B encoder output
•Velocity and torque control, either controlled digitally or via ±12bit, ±10V inputs
•Positioning via digital interface
•Software-controlled end-of-travel stops
•Selection of acceleration, maximum velocity, torque, etc.
•6th-order servo filter
•Sine commutation with 2048 PPR encoder. (8196 pulses/revolution.)
•Alarm and ”in position” outputs
•3 inputs and 3 outputs for High Speed start/stop and capture applications
•Internal Power Dump

The new MAC400 provides the same features as the larger MAC800 model and in addition offers:

•Absolute multiturn encoder (Q2 2009)
•Prepared for PowerLink; EtherCAT; Ethernet/IP; ProfiNet and SERCOS
•Even lower cost due to newest technology and production techniques
•Improved 2-channel power dump circuit
•2 RS422 channels for encoder in/output and SSI encoder, etc.
•6 IO for capture of position; interrupt, counters, enable, timer and PLC functions
•High-speed serial interface
•Plugable power connectors
•Natural cooling, no fan

The new MAC400 model has been developed because of customer requests for a mid-range solution in the highly successful MAC series. The MAC400 fully lives up to the strict requirements JVL put on all the MAC motors regarding performance, versatility and reliability.

www.jvlusa.com

CANopen Module for Integrated AC Servo Motors

JVL Industri Elektronik A/S, a Danish company, now represented in Ohio, USA, announces a new expansion, CANopen, module for their MAC, Integrated AC Servo motors. The CAN module offers control and setup, logic I/O for high speed start/stop, CANbus/CANopen DS 301 and CANopen DSP 402 and DeviceNet under development.

The module can be delivered with integrated cable with watertight connections for use in harsh environments or be delivered with M12 connectors. The modular built-up of the JVL Integrated MAC motors makes them extremely versatile for very many applications.

The MAC motor is an AC servo motor and controller combined in a single unit, offering previously unseen low pricing for the OEM market. Integrating electronics in a motor has been achieved previously, but never in such a compact unit with true AC servo performance. In the MAC motor, the servo motor, hall sensors, encoder and control circuitry have been especially designed by JVL to provide a self-contained, integrated unit in which the driver and controller are mounted behind the motor in a sealed housing.

System intelligence is thereby decentralized by off-loading control functions to the device level. This makes the MAC motor well suited for distributed control architectures which are prevalent in factory automation processes today.

The MAC motor is available in 5 models: 50, 95 ,140W and 400 and 750W. Motor parameters are set-up via an RS232 port using Windows software MacTalk.

http://www.jvlusa.com

Bluetooth Module for JVL MAC Motors

JVL now introduce the first wireless integrated servo motor. Module MAC00-FB4 facilitates wireless control of the MAC motors, giving total freedom from cables.

The new module makes it possible to have a direct BlueTooth connection to the motor. Via the BlueTooth link, the motor can be set up and controlled with the same possibilities offered by a serial connection. Functionality is exactly as with the nano PLC module but instead of the serial connector, the FB4 module is equipped with an antenna. The module can be programmed via JVL’s MacTalk software. Control is typically done from a mobile phone or a PC. On a PC, MacTalk can be used directly. Commands or programs can be sent from your own program. In addition, the module offers the possibility for connection of a local zero-set sensor. Connection of supply and signals takes place through 3 robust M12 connectors.

The module has a standard antenna plug connection, to which the included antenna is connected. Other antennae can be connected if required.

Applications:
• Positioning of axes.
• Supervising motor.
• Parameter setup.

Function:
• The solution provides full access to all functions and registers in the MAC motor.
• Connection of up to 7 modules.
• Baud rates of 19200.
• Wireless control of the motor.
• 8 In- and 4 Outputs.
• Programmable via wireless control using MacTalk.

www.jvlusa.com

Animatics Corporation’s Integrated Servos

Santa Clara, California – Animatics Corporation, pioneer of Integrated Servo Technology has taken their best selling Integrated Servos, the SM2315D and SM2315DT and added power and functionality, while lowering the cost. The new products are called the SM2316D-PLS2 and the SM2316DT-PLS2.

Read more

Servo Motors by B&R

The dynamics of a system can generally be characterized based on two values: the available motor torque and the moment of inertia for the power transmission system. The later of the two consists of the moment of inertia of both the motor and the load and is an important measurement of the system’s dynamics. Lower moment of inertia means higher dynamic properties for the system. In combination with the ACOPOS drive system, the 8LSA series servo motors offer high performance dynamics, precision and dependability.

The use of 19-bit encoders as a standard feature ensures consistent move-ments and accurate positioning. 25-bit encoders are available for meeting the highest demands. Both variants are also available as multi-turn encoders. This means that inconvenient homing procedures and additional sensors are no longer necessary. The absolute encoder functions without a battery and is therefore absolutely maintenance free. The result is a highly dependable encoder that uses permanent-magnet-excited servo motors in which the only parts subject to wear are the bearings. Therefore, dimensioning of the bear-ings plays a decisive role in the reliability and longevity of the motors. The bearings in the 8LSA servo motors are sufficiently dimensioned and filled with high quality synthetic lubricant. For unusually high demands, such as those that occur in belt drives, the motors are also available with reinforced bearings to withstand high radial forces.

The temperature levels in the motor are monitored with two independently functioning systems. A linear temperature sensor is located in the motor winding. This sends the temperature, measured to the degree, to the higher-level inverter. A second temperature model integrated in the inverter calcu-lates a virtual motor temperature from the process data. This combination of data ensures all around protection of the motor winding.

All relevant mechanical and electrical information and data is stored in the encoder used for the 8LSA servo motors. This means that the user doesn’t have to make any settings on the servo drive in the field. As soon as the encoder is connected to the servo drive and the power is applied to the electronics, the motor is automatically identified. The motor sends its rated parameters and limit parameters to the servo drive. The drive then automatically determines the current limits and current control parameters required for optimal control of the motor. This function also saves a considerable amount of work when commissioning the motor.

All B&R servo motors were designed for international use and, in addition to the obligatory CE conformity, also contain the corresponding UL certification.

www.br-automation.com