Motion systems project file – February 2013

Micromech Systems provides a comprehensive motion service ranging from just simple modifications to motors and bespoke multi axis control systems including full installation, commissioning and after sales service.

Year: 2007

Industry or Research faculty: Special Aerospace

Application or solution A turnkey solution for a programmable coating-dipping process, which included Ethernet interface, for delicate visual display units (VDUs) was required. It also required an option for un-interruptable power supply (UPS) as a crucial element. Micromech engineers developed and produced a visual basic user screen package to the customer’s specification.

Scope of overall contract To propose a system, design the mechanics and electrical build, test, demonstrate and deliver the equipment.

Description of equipment and services supplied The mechanical build consisted of a modular aluminum linear actuator structure with vertical- and cross-axis ball-screw driven units. It was decided that stepper motors with encoder feedback would be ideal for the drive system. A Trio MC204 motion controller unit with a two axis stepper command was chosen for the programmable motion process. The Client’s PC was to be connected via Ethernet for direct instruction for the individual dipping processes.

Merits of solution provided This was a complete turnkey system with test software and user manual, ready to run once accepted and delivered to site. The system was expandable for more axes if required, and importantly, the user can develop their own bespoke motion profile software.

Micromech Systems builds motion control systems to customers’ specifications, ranging from simple single-axis applications to complex multi-axis systems. We will design, build, test, and produce application software, install and commission providing a cost-effective trouble-free solution to your Motion Control issues. Whether the application is a machine upgrade or a new project, Micromech Systems has the answer.

March 2013 project: Manganese bath safe handling system

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Kollmorgen One-Cable packages

Micromech is pleased to announce the arrival of not one but two single cable systems for servomotor and drive systems. Our two major motion suppliers have virtually simultaneously produced this important development for customers so improving performance reliability and cutting costs

Robust resolver based encoder systems have been proven for several years in many drive systems and Kollmorgen has been pioneering the advance towards the digital resolver; bringing to market the innovation that combines the benefits of a robust analogue technology with the advantages of digital encoder systems. Whether customers choose the digital resolver (SFD) or high-resolution digital Hiperface-DSL encoders, Kollmorgen single-cable technology brings significant cost advantages, better performance and higher data reliability – from the very first metre of cable.

Parker HIPERFACE DSL Single Cable Servo Drive Systems
The single cable servo drive system from Parker is a combination of the low inertia servomotor SME and the triple axis servo drive TPD-M based on the Hiperface DSL® digital feedback technology.

The encoder feedback communication is fully integrated into the motor power cable and thus no separate feedback cable between drive and motor is required.

The new feedback system is a purely digital encoder communication protocol with exceptional performance. The absolute position determination, a resolution of up to 20 bit per turn, as well as 4096 maximum rotations, is unique in its class. The System is completed by the multi-axis servo drive TPD-M which represents one of the most compact solutions on the market giving the possibility of controlling up to three single cable SME servo motors with one 50 mm drive module. Therefore, the single cable servo drive system is a bespoke solution to provide machine builders with lower cabling and installation cost and the possibility to reduce control panel size and machine footprint.

Both the Parker and Kollmorgen systems have clear advantages and benefits over dual/multi cable arrangements, making them the ideal solution for all servo applications:

Advantages

  • Less hardware
  • Faster installation
  • Fewer connections
  • Greater reliability
  • Smaller footprint
  • Lighter weight
  • Reduced inventory costs

Excellent economy and reliability

  • Plug-and-play with electronic nameplate feature
  • High noise immunity due to digital system
  • High investment security with straightforward retrofitting of the drive
  • Greater reliability
  • Smaller footprint
  • Lighter weight
  • Reduced inventory costs

Micromech is the UK distributor and systems integrator for Kollmorgen and Parker motion products, for more information contact Stirling Morley on 01376 333333 or stirling@micromech.co.uk

The Triple Axis Drive TPD-M is exactly what it says on the casing, it’s a one, two and three axis drive

Available from Micromech, the Parker TPD-M is the first servo drive integrating three servo power stages in a single housing. In addition to reduced purchasing and operating costs the user profits from a variety of new installation possibilities and enhanced flexibility.

The TPD-M servo drive was especially designed for OEM packaging machinery construction; it can however also be advantageously used in many other centralised automation structures incorporating a large number of servo drives. Another major benefit is their capability to support a range of the most common motors including synchronous / asynchronous motors, direct drives, torque motors, linear servomotors and voice coil motors.

For communication the drive incorporates all common fieldbus interfaces – an essential feature of open systems; CAN / CANopen, EtherCAT, Powerlink (on request) and also SERCOS III (on request). The feedback systems can be resolver, sine-cosine (single-/multiturn), hyperface interface, EnDat Interface, hall sensors both analogue and digital, rotary and linear encoders.

The TPD-M servo drive has high flexibility being based on the free power stage adaption to the corresponding servo motor power within the scope of the available vectorial device sum current, which can be offered in the range between 2 to 30 Amperes. The power stages are operated on a central mains module and are available as single axis, 2 axis or 3 axis versions.

The resulting technical highlights of the 3-axis design offers advantages in overall size and miniaturisation and therefore cost and space reduction, thanks to the reduced cabinet size. There are further purchasing cost savings as the compact device design uses less components (housing, electronics, plugs, connectors, heat dissipater and cable) and reduced number of cables for device to device connection and for communication (USB). Furthermore there is the simplicity of the central use of filter and braking resistor.

There are even operating savings of energy and environment as the speed-controlled fan ensures continually optimised energy consumption adapted to actual requirements and the DC intermediate circuit coupling permits efficient energy exchange between the axes. There are even more savings as the small size means reduced costs for packaging material and transport.

Finally, the costs are held down for planning, set-up and maintenance overheads, the TPD-M being an individual device for different power stage configurations and the simple device exchange, due to a pluggable SD Card holding all operation relevant information. During set-up the lighter weight per servo drive simplifies handling and error rate due to reduced wiring. Lastly, ‘much simplified’ is the stock holding because of the greatly reduced number of hardware variants.

Micromech is Parker’s motion partner and can offer a solution to meet all of your motion control needs, for more information contact Alan Spinks on 01376 333333 or alan@micromech.co.uk

‘Micromech Systems and Parker are forces in motion’

The new AC30V variable speed drive, as seen on the front cover of Drives & Controls, is available now from Micromech

Designed with flexibility to meet customer needs, simplicity of use for the operator and setting a new standard in reliability, these drives range from 0.75 to 18.5 kW making them perfect for the Control of Pump, Fan and General Purpose Applications

AC30V drive has been designed to provide users with exceptional levels of control for pump, fan and general purpose applications. Its flexible and highly modular construction enables a wide range of communications and I/O modules to be easily added as required.

The AC30V has been designed with simplicity in mind, but this doesn’t compromise its functionality. Integrated macros for a range of applications and PLC functionality enable more capable users to create sophisticated control that would previously have required a separate PLC.

Designed for operation in environment class 3C3 and 3C4 for Hydrogen Sulphide (H2S) as standard (tested at 25ppm for 1200 hours), temperatures up to 50°C with optional integrated EMC filter to C2 1st environment and DC choke to reduce line harmonics. AC30V also Complies with RoHS substance restrictions in accordance with EC Directive 2011/65/EU

Micromech is an authorised distributor for Parker SSD drives. With an extensive range of AC drives, DC drives and motion control products in stock, we are able to offer technical and customer support for variable speed motor control applications.
If you have any questions and would like to discuss any of these products further, please contact Alan Spinks on 01376 333333 or email alan@micromech.co.uk

‘Micromech and Parker are forces in motion’