EMC Support

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Using the EMC tools of our partner Indu-Sol GmbH, Control Specialists Ltd can provide site-based support to check the effectiveness of your earthling from an EMC point of view. This is a critical requirement for the long-term trouble-free operation of networks like PROFIBUS and PROFINET.

EMC (Electromagnetic Compatibility) and Protective Earth (PE) issues are acknowledged as being the cause of a significant number of problems on fieldbuses and Industrial networks like PROFIBUS and PROFINET. Over the years, the risk of sporadic failures in electronic systems due to electromagnetic interference has risen sharply. This is primarily a result of an increase in the of the number and energy of disturbance sources (frequency invertors, high-powered drives) and an increase in the number and sensitivity of potential victims (microprocessor-controlled, high-transmission rate devices. Some interesting facts to consider are:

  • About 95% of all EMC-related effort (projects, work, money) is just preventative, i.e. complying to applicable standards. Only 5% relates to actual interference / root- cause and identification / solving.
  • Suitable cost-effective measures require an understanding of the underlying physical principles.
  • The distinction between shielding inside housings (printed circuit boards) and outside (housings and cables) is very important.
  • In order to avoid losing track, it is important to focus on the relevant culprits, types of coupling, and victims.
  • Many apparent EMC ‘field’ problems turn out to be direct galvanic in nature (via a wire).
  • 90% of all EMC disturbances are caused by errors in the grounding system (functional earth) and are not real EMC ‘field’ problems.
  • 80% of the final EMC (compatibility) of an automation system’s is determined by the quality of the functional bonding system (FE).

 

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  • "Extremely helpful and patient staff. A pleasure to deal with."

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  • "We felt the project was well prepared, executed and delivered results exceeding our expectations"

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Copyright © Control Specialists 2017

Industrial Network Support (PROFIBUS, PROFINET, AS-i) - Control System Support - Software Design - Validation, PID Loop Tuning - Training Courses (PROFIBUS, PROFINET, AS-I, PID Loop Tuning).

This website outlines the services provided by Control Specialists and their relationship with PROFIBUS & PROFINET International (PI), the vendor-independent organisation responsible for the development of PROFIBUS and PROFINET. It also provides details of our partners, Indu-SOL GmbH, manufacturers of monitoring and diagnostic tools for Industrial Networks and Control Station Inc., developers of industrial process control optimisation applications.