Control Techniques Gives Train a Lift - Emerson Industrial Automation

To cranes & hoists
CONTROL TECHNIQUES
GIVES TRAIN A LIFT
maintenance headquarters
for the TGV Est, which links
Paris to 21 cities in eastern
France as well as 11 other
destinations in Germany, Luxembourg and Switzerland.
Journey times have been drastically reduced - Paris
Strasbourg, for example, is reduced from four hours to just
two hours 20 minutes.
There are a total of 26 jacking stands fitted along the
maintenance line, each fitted with an 11kW Unidrive SP drive,
incorporating three plug-in modules; SM Applications module
to give powerful on-board programming, SM Interbus for
drive to drive synchronization and communications and an SM
Universal Encoder module for position feedback from the
jacks. The Leroy-Somer LSMV motors were provided with
absolute encoders for accurate positioning and fitted with
brakes for security.
Over the full length of the maintenance line, positioning
One of the most powerful lifting systems in the world has
been installed by the SNCF at its new "East European
Technicentre". A synchronized lifting line can lift a
complete TGV train-set - some 200 metres long and
weighing 386 tonnes - in just 10 minutes to an accuracy of
a millimetre, thus allowing maintenance of the running
gear.
This represents a world record in terms of the accuracy /
volume / weight ratio and was achieved with the use of
Control Techniques Unidrive SP AC drives in conjunction with
LSMV asynchronous brake-motors from sister company Leroy-
Somer, who was responsible for leading the project.
The new Technicentre, located on the outskirts of Paris, is the
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0115-0120
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accuracy is better than 1-mm. Set-up is quick and flexible.
The operator can use all 26 jacks or fewer if the train is shorter
and are interconnected by quick-release connectors.
Communication between drives and the overall line controller
is by Interbus-S.
Because of the high-efficiency and reduced turn-around
times of the new maintenance facility, SNCF is assured of
maximum availability of the 52 new train-sets, each
representing state-of-the-art railway engineering capable of
reaching a commercial speed of 320kph and requiring nearly
100 preventative maintenance inspections per year.
Recently a specially prepared TGV train achieved a world speed
record of 574.8kph (357.2mph) near Le Chemin on TGV Est.
The Unidrive SP AC variable speed drive range spans 0.37kW
right up to 1.9MW. Unidrive SP is the world's most advanced
'solutions platform' AC drive, configurable into five operating
modes - open and closed loop, vector, servo and regenerating
modes - connectivity to most industry standard networks and
accepting 14 position feedback protocols. With a range of
plug-in module options, its on-board PLC can be
supplemented, as in this case, with programmable modules.
EF
For further information please visit
www.controltechniques.com
CONSIDER IT SOLVED
TM
Network Power•Process Management•Cimate Technologies•Storage Solutions•Industrial Automation•Motor Technologies•Appliance Solutions•Professional Tools