User´s Guide Power Rail Booster
Version 12/2005
Copyright
©
Siemens AG 2005 All rights reserved.
6ES7 972-4AA02-0XA0
Page 8 of 49
Qualified
personnel
A device may be put into operation or operated only by
qualified
personnel
. For the purpose of this manual, qualified personnel are
persons who are authorized to put into operation, ground and
designate devices, systems and electrical circuits according to the
safety-related standards.
Control cabinet
For the purposes of this User’s Guide, a
control cabinet
must fulfil
the fire enclosure requirements to EN 60950.
U
Warning
The device is intended for operation in control cabinets or closed
equipment rooms.
The device may not be opened.
U
Warning
The configuring engineer is always responsible for ensuring that
data transmission errors cannot produce a dangerous situation. In
the case of systems connected by contact conductors, it is not
possible to exclude brief interruptions to communication due to the
mechanical link of the electrical transfer paths. The control
software must take this into account.
Use as
prescribed
The device may be used only for the applications described in this
Guide and only in conjunction with non-Siemens devices and
components recommended or authorized by Siemens.
Proper transport, storage and installation as well as careful
operation and maintenance of the device are prerequisites for
problem-free and safe operation.
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