Technical Library
Engineering guides
New – A guide to Control Techniques Option Modules
- An overview of our drive option modules for use with Unidrive SP, Commander SK, Affinity, Digitax and Mentor MP
- A brief explanation of their function
- Key specification details
- Terminal descriptions
- Compatibility
New – An Engineering Guide to Soft Starters
- An outline of the principle benefits of using soft starters compared to other electro-mechanical start methods
- The advantages and disadvantages of the various soft start methods
- Advanced functionality that can be found in today’s modern soft starters
- Considerations when choosing and sizing soft starters
A guide to supply harmonics and other low frequency disturbances
- An overview of the standards and regulations that are relevant to drive installations, including IEC 61000-4-7:2002, G5/4-1, IEC 61000-3-2 and IEC 61000-3-12
- The mechanisms by which harmonics are generated by AC and DC drives
- The unwanted effect of harmonics
- Methods to calculate harmonics
- Techniques to limit or eliminate the generation and effects of harmonics
- Other low frequency disturbances
A guide to popular Fieldbus systems for use with variable speed drives
- An introduction to Fieldbus systems
- An overview of the drivers behind Fieldbus selection such as centralised vs. decentralised control and physical network topology
- Guidelines on network selection and design including, cabling, termination and grounding
- Integration of IT networks and Fieldbus systems
- An introduction to each of the main Fieldbus and Ethernet systems such as PROFIBUS, EtherCAT and PROFINET
A guide to Electromagnetic Compatibility (EMC) for variable speed drives 
- An introduction to the general principles of EMC
- An overview of the standards and regulations that are relevant to drive installations, including IEC 61800-3, IEC 61000-6-4 and IEC61000-6-2
- EMC behaviour of variable speed drives
- Guidelines for trouble free installation of variable speed drives
- An overview of the theory of EMC
A guide to Control Techniques Safe Torque Off function
- Principles of machinery safety design – General principles, SIL levels and Risk assessments
- Control Techniques Safe Torque Off – How it works
- How to apply Control Techniques Safe Torque Off
- An overview of the standards and regulations that are relevant to drive installations, including EN 81-1:1998, EN 61800-5-2:2007, IEC 61508, IEC 62061, IEC 61508 and IEC 13849-1:2006
The Engineering guides are available for free by clicking on the links below:
