User´s Guide Power Rail Booster Version 12/2005
Copyright © Siemens AG 2005 All rights reserved. 6ES7 972-4AA02-0XA0 Page 17 of 49
4.3.5 Closed Ring Circuits
When using systems with closed loops, it is recommended to establish a low-
resistance connection to ground with the steel construction parallel to the contact rail.
Fig. 8: Example of a closed loop
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