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Putting the load feeders, e.g. motor
starters, into the field means transfer-
ring the advantages of field bus com-
munication to the power side. Switch-
ing and protection devices are mounted
in close vicinity to the motor, so that the
motor cable itself is very short. The dis-
tributed motor starters draw the energy
they require from a single “power bus”.
This is the distributed motor starter con-
cept that Volkswagen AG implemented
in their car engine factory in Chemnitz,
Saxony. A circular rotating overhead
conveyor system which transports ap-
proximately 2,200 manufactured en-
gines daily forms the backbone of the
entire engine factory. It provides the
connection between all the production
areas, from the assembly line, through
the engine testing bays, to the dispatch
areas.
The distributed configuration of the I/O
functions, such as the connection of
the input and output signals, or the dri-
ves and their controls is made possible
Round she goes
Material handling with AS-Interface
at the VW engine plant in Saxony Germany
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