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PROBLEMS WITH IMPLEMENTING MOTION CONTROL SYSTEMS?.. …Gerard Bush of servo system specialist Inmoco gives his top ten tips.

When asked to name the single biggest barrier to implementing motion control systems, many industry experts cite the difficulty that numerous engineers have in keeping up with all the technical advances in this fast-moving field. So how does an engineer go about designing a system that is easy to implement and maintain?  Gerard Bush of servo system specialist, Inmoco, offers these 10 tips:
Use open standards for developing application programs for motion and I/O control. For example, PLCopen motion control function blocks provide a rich feature set and reduce the learning curve between vendor’s products.

Select digitally networked drives to simplify commissioning and reduce cabling costs.  Networked drives also typically have superior diagnostic capabilities over analogue drives.

Create and maintain a library of reusable function blocks that perform tasks specific to your machines, product, or industry, such as flying shear, cut-to-length, winding, etc. Many motion control vendors can supply you with these, or with examples that are easily modified.

Build error handling into your application from the beginning. Fault recovery is critical to most applications, and can be relatively painless if designed in from the start.

Select the proper feedback device. Consider speed requirements, ambient temperature, machine vibration, and resolution. If it is an electronic gearing application, consider the relative resolutions between master and slave axes to reduce the amount of gearing up.                                          

Buy an integrated package of drives, motors, and cables in order to reduce design and commissioning time.

Make sure your commissioning software has powerful, intuitive tools to simplify tuning. A built-in digital scope with frequency analysis makes configuring a notch filter trivial.

Size your motors and drives properly for the application. Your vendor can assist you with this process—or provide you with software tools to simplify doing it yourself.

Choose a motion controller with a rich feature set of application-specific function blocks or built-in capabilities, such as high speed registration, tension control, etc.  Match your application requirements to the feature set of the motion controller.

Select a motion controller with IEC-61131-3 programming and I/O support to eliminate the PLC. An integrated package reduces development costs and increases performance by eliminating communications programming and overhead between the two devices.

Intelligent Motion Control (INMOCO) has over 30- year’s experience in the servo drive industry. INMOCO’s products are  used in Robots, Machine Tools, Automation, Metal Bending, Handling, Packing, Textiles and Paper (etc.).They are backed- up by comprehensive application and service facilities.


For further information contact:
Gerard Bush, Sales Application Engineer, INMOCO Limited, 4 Brunel Close, Drayton Fields, Daventry  NN11 5RB. Tel: 01327 300320  Fax: 01327 300319. E-mail



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