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:
Issue Guides
IET Drives & Controls Handbook
Commissioned by
the Institution of Engineering and Technology, the 2nd edition of
the Control Techniques ‘Drives and Controls Handbook’, edited by
Professor Bill Drury, was launched on 6th July 2009. The
handbook gives a state-of-the-art insight into the technology and
techniques of AC and DC motor control, from basic theory through to
practical solutions.
This book replaces the edition published in 2001 and according
to Professor Drury, “Very little of the last edition has made it
into the new one without at least some modification and there has
also been a lot of entirely new subject material included.” This
comprehensive and highly practical work runs over 750 pages and
retails at £80; however you can get a 20% discount
when buying it through the IET by visiting http://www.driveshandbook.com/
first.