Energy-efficient production means more than just the use of variable-speed drives and efficient motors with low energy consumption. The question going forward is how to selectively place complete production lines or portions thereof into an energy saving mode during unproductive times.
It has long been a matter of course in every notebook computer that the hard drive, screen, or notebook as a whole will be placed in standby mode, depending on the operating situation. This function is a device feature and only requires parameter assignment. This is exactly the approach taken in the PROFIenergy concept, in which standardized control commands are used to place devices and machines into energy saving mode via PROFINET.
Initial analyses and measurements for the PROFIenergy study were completed on production lines in Germany at Daimler”s Sindelfingen plant and at Volkswagen Commercial Vehicles in Hanover (Porsche Panamera production). The behavior of the overall plants and their components were analyzed with respect to load curve, load distribution, and pauses. In addition, the influence of operating modes on energy consumption was analyzed, and pauses were analyzed with respect to frequency and duration.
The results of the PROFIenergy study confirm significant potential energy savings during pauses and idle periods of up to 50% or more and a savings potential on the order of 33% of the total energy demand. In addition to planned pauses, e.g., on the weekend, unplanned idle periods of a plant represent another significant potential candidate for use of PROFIenergy.
Prof Klasen”s study is now available for publication on request to:
Bob Squirrell, Chairman,
The PROFIBUS Group, Suite 183, 111 Piccadilly, Manchester, M1 2HX
E-mail: uk@profibus.com
Tel/voice mail: +44 20 8144 9597
Fax: +44 870 141 7378
Skype (VoIP): bobsquirrell
The PROFIBUS Group
- 0208 144 9597
- uk@profibus.com
- http://www.profibusgroup.com
- Suite 183, 19 Lever Street, Manchester, M1 1AN GB
About us
PI UK was founded as The PROFIBUS Group in 1993 to promote the use of PROFIBUS in the UK. More recently it has added PROFINET and IO-Link to the range of technologies supported by the group and is now known as PROFIBUS and PROFINET International UK, or PI UK for short. Registered in the UK as a Trade Association, PI UK is run by a Steering Committee elected by its members. It is not a limited company and hence has no company registration number, but it is fully accountable within the UK and is VAT registered, number GB 643240662.
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