KSM Safety Solutions Significantly Improve Productivity

With KSM Kollmorgen completes the motion safety chain from sensor-to-drive

  • Significantly higher productivity using the Motion Safety Concept
  • Low system costs using standard commercial of-the-shelf (COTS) components
  • Flexible and expandable safety solutions utilizing modular design
  • Tested and certified by TUV achieving PLe (ISO 13849) and SIL3 (IEC 61508)
  • Interfaces seamlessly to Kollmorgens´s AKD, ServoStar, and Kollmorgen motion systems
  • All important safety functions are available with the modules
Kollmorgen KSM Safety Solutions

 

Safety Functions for PL e and SIL 3
• Safe Stop Function: STO, SS1, SS2, SOS
• Safe Velocity Function: SLS, SSM, SSR, SMS
• Safe Position Function: SLP, SCA, SLI
• Safe Direction Function: SDI

• Safe Brake Function: SBC
Connectivity
• EtherCAT
• CANopen
• Profinet
• PROFIsafe and EtherCAT FSOE slave
In combination with AKD servo drives and other Kollmorgen solutions you can develop expandable motion systems to increase performance and productivity at lower costs.
KSM-compact Safety Module
• For 1 or 2 safe axes
• Up to 2 expansion modules
• Base unit with 16 safe I/O
• Expandable up to 60 safe I/O
• 1 safe relay output, expandable
• 2 pulse outputs, 2 standard outputs
• Expandable up to 6 pulse and 6 standard ouputs
• Up to 800 function blocks
• Space-saving, compact design
KSM-modular Safety PLC
• Up to 12 safe axes
• Up to 8 expansion modules
• Base unit with 56 safe I/O
• Expandable up to 200 safe I/O
• 1 safe relay output, expandable
• 2 pulse outputs, up to 10 standard outputs
• Expandable up to 14 pulse and 22 standard outputs
• Up to 3000 function blocks
• For applications with large number of interfaces

 

Motion Safety – The Concept for Safe Motion

Motion Safety – this is innovative safety technology from Kollmorgen combining safety logic and drive monitoring in the drive. Conventional safety technology keeps the operator away from areas with hazardous motion. Drives with Motion Safety, however, allow operator intervention without process interruption.

Productivity Gains with Motion Safety
Intelligent Safety functions monitor areas with hazardous motion allowing the machine to effectively intervene with minimal process interruption. Functions such as safe position (SLP) limit the range of machine motion to ensure that personnel remains safe. Machine zones that pose no risk to the operator remain running. The diagram shows the gain in productivity. You can see from the yellow line that production continues during user intervention with Kollmorgen Motion Safety technology.

Kollmorgen – Your Skilled Partner for Safe Motion Control Solutions Safe Motion from a Motion Expert

Safety logic, servo drives and motors and even complete safe automation solutions – Kollmorgen delivers matched components from one source. Additionally, we offer efficient development tools and engineering support for existing machine designs or innovative new developments. Take advantage of Kollmorgen’s innovative capacity and experience for the development of your safe motion control solution.

For details of the KSM range and other products from Kollmorgen contact Sales on 01376 333333 or at sales@micromech.co.uk

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A Quick Guide: How Servo Motors Work

Article Posted by Electromechanical Team on Thursday, October 5, 2017, on the Parker Motion & Control Technology Blog
Parker - How Servo Motors Work

The basic theory of operation for brushless servo motors revolves around the principles of magnetism where like poles repel and opposite poles attract. There are two magnetic sources found within a servo motor: Permanent magnets that are typically located on the rotor of the motor, and the stationary electromagnet that surrounds the rotor. The electromagnet is called either the stator or motor winding and is made up of steel plates called laminations, that are bonded together. The steel plates typically have “teeth” that allow copper wire to be wound around them.

Going back to the principles of magnetism, when a conductor like copper wire is formed into a coil, and the conductor is energized so that current flows through it, a magnetic field is created.

Parker - How Servo Motors WorkThis magnetic field created by current passing through the conductor will have a north pole and a south pole. With magnetic poles located on the stator (when energized) and on the permanent magnets of the rotor, how do you create a state of opposite poles attracting and like poles repelling?

The key is to reverse the current going through the electromagnet. When current flows through a conducting coil in one direction, north and south poles are created.

When the direction of the current is changed. the poles are flipped so what was a north pole is now a south pole and vice versa. Figure 1 provides a basic illustration of how this works. In figure 2, the image on the left shows a condition where the poles of the rotor magnets are being attracted to the opposite poles of the stator. The rotor poles, which are attached to the motor shaft, will rotate until they are aligned with the opposite poles of the stator. If all stayed the same the rotor would then remain stationary.

The image on the right in figure 2 shows how the stator poles have flipped. This would happen every time the rotor pole caught up with the opposite stator pole by reversing the current flow through that particular stator location. The continual flipping of stator poles creates a condition where the permanent magnet poles of the rotor are always “chasing” their stator opposites which results in the continuous rotation of the rotor/motor shaft.

Parker - How Servo Motors WorkThe flipping of the stator poles is known as commutation. The formal definition of commutation is “The action of steering currents to the proper motor phases so as to produce optimum motor torque and motor shaft rotation”. How are the currents steered at the correct time to maintain shaft rotation?

The steering is done by the inverter or drive that is powering the motor. When a drive is being used with a particular motor an offset angle is identified in the drive software along with other things like motor inductance, resistance, and other parameters. The feedback device that is used on the motor (encoder, resolver, etc..) provides the position of the rotor shaft/magnetic pole to the drive.

When the magnetic pole position of the rotor matches the offset angle, the drive will reverse the current going through the stator coil thereby changing the stator pole from north to south and from south to north as shown in Figure 2. From this you can see that letting the poles align will stop the motor shaft rotation, or changing the sequence will get the shaft spinning in one direction vs. the other, and changing them quickly allows for high speed rotation, or just the opposite for slow shaft rotation.
Acknowledgement

Article contributed by Jeff Nazzaro, gearhead and motor product manager, Electromechanical and Drives Division, Parker Hannifin Corporation.

Disclaimer
Licensing for these images came with permission from the Parker Hannifin Media Manager collection.
Article reposted with Parker Hannifin’s permission.

Miniaturised stepper driver module

TRINAMIC Motion Control announces the TMCM-1210, a highly miniaturised yet technologically leading-edge stepper driver unit. The evolution of technology is transforming all industries, including motion control. Components are becoming faster, cheaper, more powerful… and much smaller.

Trinamic TMCM 1210“For many manufacturers, miniaturisation is transforming their organization by allowing smaller and decentralised devices, resulting in leaner processes and reduced storage and logistics cost,” explains Trinamic’s CEO Michael Randt. “With the NEMA 8 motor mountable TMCM-1210, Trinamic once more demonstrates its ambition to be at the forefront of technology”

The general trend towards miniaturisation is driven by a demand for compact, decentralised devices instead of huge machines. This trend is visible in all kinds of applications such as microbiology instrumentation, lab automation, scientific test equipment and micro precision systems.

Like all other TMCM modules, the TMCM-1210 embeds advanced motor control functions, as well as motion control and PLC features, into a tiny and cost-efficient module. The new driver module (20mm x 20mm) is equipped with an RS485 interface and Trinamic’s proprietary TMCL™ protocol. Together with the free TMCL-IDE, this allows for easy implementation of a standalone program flow. Graphical tools and wizards guide through the parameterisation.

Being based on Trinamic’s latest stepper motor driver generation, the TMCM-1210 offers leading edge current control technologies. A high-resolution microstepping with up to 256 equidistant microsteps per full-step generates a total resolution of 51.200 steps per rotation, resulting in vibration free positioning. With Trinamic’s patented stealthChop™ current control for silent positioning at low speed and spreadCycle™ for highest performance at high speed, the module provides superior performance wherever small stepper motors are used.

The integrated sixPoint™ ramp generator allows for precise and rapid positioning. Even in environments where parameters and target positions must be changed during motion. The module has a reference switch input that can be programmed as left or right limit switch. In addition, it comes with stallGuard2™ for sensorless homing and an integrated rotary hall encoder.

For details of the full TMCM module range and other exciting products from Trinamic contact Sales on 01376 333333 or at sales@micromech.co.uk

Meet the Team – Stephanie Cowie

Meet the Team - StephHi,
I am Stephanie Cowie and have been with the company since the end of May 2017, a relatively short time compared to most.  My role is Accounts Assistant taking over from Gina who had 28 years experience and decided to take a well earned retirement. Rather big shoes to fill but I think I am getting there.  Everyone has been very kind and helpful and it has been surprisingly stress free. I’ll probably regret saying that!

My many years of working experience has been in civil service, local government department as well as private companies.  My roles have varied but have mainly been in an admin/finance capacity. I am married with three children, two still at home and my eldest married with a daughter (2yrs 9mths) living in Sweden.  Our home life is quite hectic with working, school, the dog, the cat, and ailing parents, so not much free time available.  We do enjoy seeing family and friends and holidaying in Scotland and Sweden when the opportunity arises. We are still trying/hoping to find the family link with a well known Whiskey distillery in the well known area of Scotland!.
The photo was taken when my granddaughter was 9 months old.

Food Grade Gearhead Motor Solves Problem for Packaging Manufacturer

Article Posted by Electromechanical Team on Tuesday, August 1, 2017, on the Parker Motion & Control Technology Blog

Parker Food GradeGearhead motors can be ideal for the food and packaging industries if they are selected with several key features. A manufacturer of machines for gluing, fill, sealing and diverting food containers for the food-processing industry had a requirement for the motor and gearhead to be mounted above the food plane. Certain modifications were also needed for the gearhead to make it safe for the food environment, and capable to withstand frequent washdowns.
Gearhead design considerations

The selection criteria to be aware of for selecting products in the food packaging and process industries:

  • Lubrication – must be USDA food grade approved in case of incidental contact to food
  • Sealing – must prevent any leaking as well as prevent any ingress of the fluid during washdown
  • Finish – special FDA-approved finish must be used making it very durable and resistant to chipping, oxidizing or rusting
  • Output Shaft – stainless steel prevents any rust from developing and contaminating the processing food.

Parker solution

Parker Stealth PS planetary gearheadStealth PS planetary gearhead with standard F01 food grade special option Stealth PS planetary gearhead with standard food grade option provides the gearhead with standard modifications including special lubrication, viton seals, special finish and a stainless steel output shaft. Since this food grade modification is a standard option, delivery is only one week over the standard gearhead lead time.

Similar standard modifications exist for:

  • vacuum
  • clean room
  • high temperature
  • radiation
Learn more about Gearheads in this overview video
Acknowledgement

Article contributed by Jeff Nazzaro, gearhead and motor product manager, Electromechanical and Drives Division, Parker Hannifin Corporation.

Disclaimer
Licensing for these images came with permission from the Parker Hannifin Media Manager collection.
Article reposted with Parker Hannifin’s permission.

AKM DC Servo Motor Low Voltage

Kollmorgen introduces AKM DC Servo Motor low voltage as a motor solution for machine modules and retrofits.

  • All the benefits of permanent-excited servo solutions in a low voltage environment
  • Able to replace existing technology
  • Power range up to 300 W (48 V)
  • Full flexibility of the AKM range in terms of feedback systems, connectors and flange / shaft combinations
  • Controls possible using AKD Servo Drives
Practice-oriented performance data and functions
  • Torque range up to 1.25 Nm (continuous) and 4.1 Nm (peak)
  • 2 voltage ranges: 24 V DC and 48 V DC
  • 3 sizes with 40, 58 and 84 mm flanges
  • Rated speed range up to 2500 rpm
Kollmorgen AKM DC
Low-voltage servo axes can be used for upgrading existing systems as a result of their compact design, and they also allow space-saving machine modules to be installed with independent intelligence. The axes are designed for rated power of 300 W with 6 A current, but can supply a current of 15 A for a short time and can thereby cope with the breakaway torques that occur upon start-up. The drive system has a more efficient design through the high peak current without oversizing.

 

Compact low voltage servo axes

Ideal for high-precision drives in packaging machines or for use in autonomous transportation systems with dynamic driving behaviour.

Kollmorgen AKM DC

Kollmorgen AKM DC Table
High-end control technology from Kollmorgen
You can still have the precise controls of 24 V/48 V motors in a low voltage environment. The compact AKD Servo Drives can be used in many applications and turn a simple drive into a powerful low voltage axis.
For more details on Kollmorgen products contact Micromech sales on 01376 333333 or at sales@micromech.co.uk
 

New CANopen Servo Controller

TRINAMIC Motion Control has announced the TMCM-1633-CANopen, a new compact 300W BLDC servo controller module with sinusoidal commutation compatible with the industry standard CANopen protocol.

Trinamic-1633Like all other TMCM drives, the TMCM-1633-CANopen is a cost-efficient module embedding advanced motor control and motion control functions, as well as PLC features. The new drive measures 92mm x 50mm and is equipped with a CAN interface and a CANopen (CiA-402) protocol stack. It provides a flexible, cost-effective solution to the decentralized coordinated control of BLDC or BLAC motors of up to 10A RMS continuous current at 48V supply voltage.

It was only a matter of time before Trinamic extended the successful TMCL™ servo controller family by a new member that interacts with CANopen. “Especially in the Asian marketplace we experience a growing demand for servo controllers communicating over the industry standard protocols CANopen or CANopen over EtherCAT,” comments Michael Randt, CEO of Trinamic.
Featuring field-oriented control (FOC), also known as vector control, using a/b/n incremental encoder signals, the BLDC servo controller allows for precise and dynamic positioning. The TMCM-1633-CANopen supports trapezoidal ramping as well, and hall sensor inputs are supported by the firmware for faster initialization.
Besides CANopen protocol, the TMCM-1633 supports TRINAMIC Motion Control’s easy-to-use TMCL™ protocol. Together with the free TMCL-IDE, this allows for quick identification of control parameters. Graphical tools and wizards guide users through the parameterization and fine-tuning.
TMCM-1633-CANopen is compatible with Trinamic’s baseboard BB-1630 and available immediately.
Features
  • Single axis field-oriented control for BLDC/PMSM motor
  • Hall and a/b/n encoder support
  • 14,5 … 48V DC supply voltage
  • Up to 10A RMS peak motor current
  • RS232 & CAN interface
  • CANopen CiA 402 drive profile
  • Torque, Velocity, and Position control

For more details on TMCM-1633 and other exciting products from Trinamic contact Micromech sales on 01376 333333 or at sales@micromech.co.uk