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no control cable wiring into the plant
•
independence of plant environment
Direct cost savings
Motor controls for decentralized installations must be
built to meet the harsh conditions in manufacturing
areas - especially such conditions found in the food
and beverage industry, where frequent wash downs
are required. This of course increases the cost of
the drive. This increase will be more than offset by
savings in expenses for cabinets and cables.
Centralized installation
The drives are distributed equidistant with the distance
L between each drive and the distance h between each
row and also with a distance h from the centralized
power entry/cabinet location to the first row. There
are n rows, and N drives in each row.
MG.90.F2.22 - VLT is a registered Danfoss trademark
Decentral Solutions
The cable saving potential is considerable, as will be
demonstrated by the following example.
The figure illustrates an installation with motors
distributed in a number of rows with several motors in
each, as is the situation in for example parallel bottling
or baking lines in the Food and Beverage industry.
This example shows the need for power cables from
the centrally placed drives to the motors.
7
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