Archive for August, 2011

Wide-ranging Motion Control Support Over EtherNet/IP

Many communication standards have been applied to machine and motion control with varying degrees of success. Some of the more popular are EtherNet/IP, EtherCAT, CANopen, DeviceNet and Profibus. EtherNet/IP has become particularly popular because it is compatible with Rockwell/Allen Bradley PLCs, runs on standard Ethernet hardware, and employs the robust and proven Common Industrial Protocol (CIP) for communication, control and data gathering.

Applied Motion Product's EtherNet/IP Product Family

Applied Motion Products is pleased to announce the availability of eight new EtherNet/IP compatible step motor drives. In addition to controlling a wide range of high torque step motors, these units have plentiful, industrial strength I/O and support more than 100 commands and 130 registers over the EtherNet/IP protocol with a communication speed of 100 Mbits/second.

In addition to point to point moves, homing, jogging, registration and encoder following, I/O commands and real time polling are fully supported. Q programs can also be stored in the drive and triggered via EtherNet/IP, allowing the drive to execute complex, intelligent command sequences.

We offer four DC powered EtherNet/IP drives. The ST5-IP-EN and ST10-IP-EN can control step motors ranging from NEMA sizes 11 to 34, producing up to 1200 oz-in of dynamic torque. Need encoder feedback? The ST5-IP-EE and ST10-IP-EE models include an encoder feedback option that can detect and prevent motor stalls using Applied Motion’s proprietary stall prevention algorithm.

If you prefer an AC powered unit, the STAC5 is available in 120VAC (STAC5-IP-N120) and 220VAC (STAC5-IP-N220) models that efficiently drive our specially designed, high torque NEMA 23 and 34 motors. The STAC5-IP-E120 and STAC5-IP E220 support encoder feedback with stall detection and stall prevention.

Both DC and AC powered drives include our auto-tuned digital current control, which provides smooth, quiet motion. An advanced anti-resonance algorithm with electronic damping allows for maximum torque utilization, rapid acceleration, and fast settling times.

All of our EtherNet/IP drives are CE certified and ROHS compliant.   AC powered models are UL recognized.  Click on the link below to view these models-
http://electromate.com/products/?keyword=ethernet%2FIP&d=101719

For more information, please contact:

EDITORIAL CONTACT:

Warren Osak

sales@electromate.com

http://www.electromate.com

Toll Free Phone: 877-737-8698

Toll Free Fax: 877-737-8699

New Tolomatic IMA55 integrated servomotor actuator delivers up to 3,000 pounds of force

The company’s most powerful and compact actuator provides high force and long service life for heavy-duty industrial applications.

Hamel, MN – Tolomatic’s new, larger version of its integrated-motor rod-style actuator is capable of delivering up to 3,000 pounds of force with a standard ball screw.  The Tolomatic IMA55 actuator is the largest and most powerful integrated-motor rod-style actuator the company makes and delivers increased dynamic performance and longer service life compared to traditional rod-style actuators.  The IMA55 actuator’s unique integrated motor design is well suited for applications such as pressing, clamping, valve control, spot welding and volumetric filling.

Tolomatic's IMA55 3000 lbf actuator

“With the addition of the IMA55 actuator to Tolomatic’s integrated-motor actuator line, we now have compact actuators for high-duty-cycle industrial applications that range in force from several hundred to 3,000 pounds,” says Aaron Dietrich, marketing manager, Tolomatic.  “The IMA55 actuator, with its integrated servomotor, is also shorter for a given stroke length than other types of rod-style actuators.”

The IMA55 actuator features a hollow-core rotor design that allows the nut of the screw to pass inside the rotor, creating a very compact package. This can decrease overall actuator length by as much as 18 inches compared to standard actuators due to the elimination of a separate motor, motor mount and gearbox.  “In addition,” says Dietrich, “the skewed stator windings minimize the cogging of the motor and provide more efficient motion with improved force repeatability.”

The Tolomatic IMA55 actuator with the standard ball-screw can exert a force of up to 3,000 pounds and move at a top speed of about 12 inches per second.  The IMA55 actuator is available with a choice of motor windings optimized for 230 or 460 VAC in any incremental stroke length from 6 inches to 18 inches.  Built with Tolomatic’s Endurance Technology features for maximum durability and extended service life, the IMA55 actuator has a patent-pending lead-screw lubrication system that allows easy relubrication without disassembly.  Tolomatic’s sizing and selection software makes selecting an IMA55 actuator easy.  All orders are built to order and shipped with Tolomatic’s industry-leading five-day delivery.

For more information, please contact:

EDITORIAL CONTACT:

Warren Osak

sales@electromate.com

http://www.electromate.com

Toll Free Phone: 877-737-8698

Toll Free Fax: 877-737-8699

New Family of Lowcost Servomotors Feature Superior Torque Per Dollar Value

The new VLM family of servomotors is designed for superior Torque-per-dollar for those customers looking for a low cost motor with optimal performance.

With a design targeted for the most common servomotor features and offering torque ranges from 0.5Nm to almost 16 Nm, VLM is able to deliver all the torque and performance of a servo while helping customers control their application costs.

Kollmorgen's New VLM Brushless Servo Motor Series

Features Include:

  • NEMA 23 & 34 or Metric 60 mm & 90 mm
  • 120/240 VAC, 160/320 VDC
  • Rated speeds up to 6000 RPM
  • Up to 15.9 N-m Peak
  • Up to 4.5 N-m Continuous
  • CE, UL, cUL pending
  • RoHS compliant
  • IP40 protection
  • 1 m and 3 m lead lengths available
  • Neodymium iron-boron magnets for maximum torque
  • Standard cabling options for direct connection to S200 (Hall feedback)
  • Standard cabling options for direct connections to AKD (Resolver or Encoder feedback)

Options Include:

  • Feedback Devices: resolver, encoder, and hall sensors
  • Shaft Ends: keyway, flat, smooth
  • Molex, Firewire (Direct to S200-VTS), D-SUB (Direct to AKD), and Flying Leads

Click on the link below for additional information-

VLM Series Brushless Servo Motors

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

Maxon Release New EC45 Flat Motor Rated At 70Watts

Maxon’s successful series of brushless EC 45 flat motors gets an addition to the family. Two completely newly designed 70 Watt versions join the family, which pushes the power limits, once again.

Maxon's EC45 Flat 70Watt Brushless Servo Motor

The new EC 45 flat 70 W is available in two versions; one with socket connector and one with prefab cable. It displays a very flat speed/torque gradient and unifies novel features with proven characteristics: flange pattern, fixation and socket are identical to the existing EC 45 flat 50 W.

The electronically commutated Maxon EC motors are particularly noteworthy for their excellent torque handling characteristics, high performance, extremely wide speed range and, of course, their unsurpassed service life. These compact and extremely powerful EC flat motors are ideal if space is limited.

The new EC 45 flat 70 W features extraordinary key performance data:

  • Max. continuous torque of 130 mNm (about 38% more than EC 45 flat 50 W) 
  • Efficiency 83…85% 
  • The new EC 45 flat 70 W is perfectly made for pump drives and in industrial automation equipment

Click on the link below for additional information-

EC45 70Watt Flat Motor Series

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

Integrated Stepper Motors Feature CANopen Connectivity

Applied Motion Products of Watsonville, CA have just released a new line of High Torque Integrated Stepper Motors with built-in CANopen communications. The STM24 Series is a Nema 24 frame hybrid step motor series with holding torque rated to 340 oz-in .

CANopen Integrated Stepper Motors from Applied Motion

CANopen is a standardized communication protocol for use in distributed automation control systems. It is a popular fieldbus option for applications that require the transmission of time-critical data to and from the devices on the network.

The STM24 CANopen Integrated Motors adhere to CAN in Automation (CiA) specifications DS301 and DSP402. Profile Position, Profile Velocity, and Homing modes are fully supported at data rates up to 1 Mbps. Applied Motion also provides specific CANopen objects for executing stored Q programs* and accessing internal data registers in the products.

Each STM integrates a NEMA step motor, microstepping drive and controller into a single device, offering savings on space, wiring and cost over conventional motor and drive solutions.

The “S” version models accept step and direction, analog input, joystick control, and streaming host commands using the SCL language. “Q” version models add stand-alone programmable operation using the Q programming language. This versatile language includes high-level features such as complex motion, multi-tasking, conditional programming, math functions, register access, and more. Both S and Q models offer RS-232 or RS-485 communication.

An optional 4000 count encoder, integrated into the motor housing, provides stall detection and stall prevention. Applied Motion’s proprietary stall prevention algorithm monitors rotor lag and automatically reduces speed and acceleration to avoid motor stalls, allowing 100% torque utilization.

Click on the link below for additional information-

STM24 Series Integrated Stepper Motors

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

*Stored Q programs in CANopen products can only be accessed via the CANopen network by request from the host controller. CANopen products cannot run Q programs stand-alone.

Quantum Devices Release New Low Profile, High Resolution Optical Encoder

Quantum Devices of Barneveld, MI have just released a New Low Profile, High Resolution Optical Encoder, the LP12 Series.

The model LP12 optical encoder provides an improved feedback solution in applications typically using modular encoders. With an over all height of less than an inch and the stability of a bearing encoder design, the model LP12 can provide significant performance upgrades in applications limited by traditional modular encoder solutions.

Outputs consist of a quadrature with index pulse (Incremental or Sinusoidal) and three-phase commutation. A flexible member allows for much greater tail shaft run out and TIR than can be tolerated by modular encoder designs, plus it provides 30 degrees of rotation for commutation timing.

Features include:

  • Low profile assembled height of 0.816″ 
  • Bearing design simplifies encoder attachment 
  • Incremental Resolutions up to 20,000 cycles per revolution 
  • SIN/COS Resolutions up to 1250 cycles per revolution 
  • Standard 4, 6 or 8 pole commutation 
  • Multiple Bolt Circle mounting 
  • Through shaft sizes up to 0.3125″Ø/ 8mmØ 
  • High Noise Immunity 
  • Cost Competitive with Modular Encoders 
  • 500 kHz Frequency Response 
  • RoHS Construction 

More information on the LP12 Series from Quantum Devices can be found at:
http://electromate.com/products/series.php?&series_id=105411

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

Trapezoidal vs Sinusoidal Brushless Amplifiers

The new Galil Sine drive amplifiers are a welcome addition to the existing DMC-40×0 and DMC-41×3 line-up of servo and stepper amplifiers – yet the addition of the new amplifiers also brings up a question  – “When should I use a sinusoidal drive instead of a trapezoidal drive?”.  This article will go over the Galil brushless servo drive architecture and highlight what you should know when making an amplifier selection.

Galil 's AMP-20420 Brushless Servo Amplifier

Two Loop Architecture

In order to gain a better understanding of servo amplifiers and specifically how the Galil servo amplifiers work, the first thing to do is to understand the Controller/Amplifier architecture.  Unlike most single axis drives on the market, Galil uses a split sample rate.  The first and highest speed sample rate occurs on the amplifier and is used on the current loop.  The D3540 Sinusoidal amplifier runs its current loop at 33 kHz and the D3040 Trapezoidal amplifier runs at 66 kHz (which can be increased to 120 kHz for low inductance applications).  The benefits of a high speed current loop are:

Fast response to desired current/velocity command signal

Less destabilizing phase shift on the position loop

Tighter more accurate control – 16bit resolution

High Closed Loop Frequency (3-4 kHz)

The second loop in the system is the position loop.  Because of the limitations of real world mechanics, a position loop generally has a closed loop frequency in the range of 20 to 200 Hz.  The sample rate required to achieve this is only from 1 kHz to 4 kHz.  Note that the DMC-4000 can have a sample rate of up to 16 kHz and can control up to 8 axes allowing all axes to be tightly coupled.  General motion control applications run optimally at a 1 kHz position loop update.  High performance and high resolution applications can be run at higher rates depending on the required performance.

Separate processors for the Amplifier and Controller allow for this two loop Architecture which allows Galil to be extremely responsive and highly accurate and also perform whatever functions are required in a user’s application.

Trapezoidal vs. Sinusoidal Commutation

Trapezoidal commutation is the most cost effective way of controlling a brushless servo motor.  It is perfect for higher speed applications and applications where the motor and mechanics will eliminate the torque ripple that occurs during switching current from one phase to the next.  Hall sensors are required for Trapezoidal commutation.

Sinusoidal commutation is great for lower speed, direct drive or linear motor applications where the torque ripple of the motor phases needs to be minimized.  Since the current to the motor phases are weighted as sine waves, the torque going through the motor is smooth and has minimal ripple. It also allows the mechanics to be simplified because Hall sensors can be eliminated.

Sinusoidal amplifiers rely on an initialization sequence at power-up to provide the correct commutation.  This can be done in one of 3 ways on the Galil.    The first and most common method is the BX command that uses an algorithm that energizes the phases and determines the brushless angle.  Only a small amount of motion (if any) is shown with this method.  The second method is to use the BC command that requires Hall sensors to be hooked up.  It will move the motor and use the first hall transition as the basis for the commutation.  This method is necessary if there is an external force on the motor such as a gravity load.  The third method uses the BZ command to drive the motor to the zero degree commutation point which can result in a jump to the closest zero phase.  For detailed information on getting started with the Galil Sine Drives, please see Application Note #1501

More info on Galil Sinusoidal Amplifiers
The new AMP-43540 drives four brushless motors operating at up to 8 Amps continuous, 15 Amps peak, 20-80 VDC. The gain settings of the amplifier are user-programmable at 0.4, 0.8, and 1.6 Amp/Volt. The amplifier offers protection for over-voltage, under-voltage, over-current, short-circuit and over temperature.  A shunt regulator option is available.

For more information, please see:
http://www.electromate.com/products/series.php?&series_id=101658

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

New 4mm Linear Servomotor Replaces Piezo Motors

Nippon Pulse America introduces their smallest linear servomotor, the 4mm Linear Shaft Motor. The 4mm shaft diameter, a small forcer size (10mm x 10mm), a total weight of 9 grams, and strokes as long as 40mm make the 4mm Linear Shaft Motor a suitable replacement in piezo type applications.

Nippon Pulse Model S040D Linear Shaft Motor

The 4mm Linear Shaft Motor is quiet due to the absence of friction since the only mechanical contact section is the linear guide. The coreless construction of the Linear Shaft Motor totally eliminates cogging. The Linear Shaft Motor’s high motor stiffness allows it to be used in high precision positioning applications where a resolution of 0.09 nanometers is achievable. With the Linear Shaft Motor, you will find that you have virtually no fluctuation in speed. Durable construction makes it possible to operate the Linear Shaft Motor in harsh conditions, including a vacuum situation and underwater. Compared to other linear motors on the market, the Linear Shaft Motor is compact and lightweight. Due to its design, the Linear Shaft Motor has no backlash.

Specifications for S040D Linear Shaft Motor:

  • Continuous stall thrust – 0.5N
  • Continuous stall current – 0.4A
  • Peak thrust 2N
  • Peak current – 1.8A
  • Shaft diameter (D) 4mm (0.16in)
  • Slider length (A) 25mm (0.98in)
  • Slider width (B) 10mm (0.39in)
  • Mounting pitch (P x P1) 21.5 x 4mm
  • Mounting screw (M x l) 4-M2
  • Gap 0.5mm (0.02in)
  • Slider weight 0.01kg/F
  • Available stroke 20, 30 & 40mm
  • Magnetic pitch (N-S) 9mm (0.354in) (N-S)

More information on the 4mm Linear Servomotor from Nippon Pulse can be viewed at-
http://www.electromate.com/products/series.php?&series_id=101495

Click on the link below to view a YouTube video of the Linear Shaft Motor running under water-
http://www.youtube.com/Electromate#p/c/3B9D70CB9E72F31D/13/gnoglnerovs

The original online Press Release can be viewed at-
http://www.electromate.com/news/?c=pressreleases&press_id=10497

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


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