User´s Guide Power Rail Booster
Version 12/2005
Copyright
©
Siemens AG 2005 All rights reserved.
6ES7 972-4AA02-0XA0
Page 29 of 49
6.3 Installation
6.3.1 Installing
a
PRB
A PRB can be mounted on a DIN EN 50022-compliant standard top hat rail with the
dimensions 35x15mm or 7.5x15mm. A PRB must be installed or removed only when
the supply voltage is switched off.
Æ
The PRB must be installed horizontally on a vertical wall as shown in Fig.
14.
All other installation positions result in derating to the permissible ambient
temperature. See Chapter
8 „Technical Specifications".
Æ
The location must be selected to suit the ambient conditions and mechanical
limit values shown in the technical specifications.
Æ
Sufficient space to connect all lines and cables must be available at the chosen
location. In order to ensure sufficient heat dissipation, a space of at least 15mm
must separate the upper corner of the PRB from the housing.
Æ
Install the PRB only on a low-resistance and low reactance-grounded mounting
plate.
On/removing a PRB from a top hat rail
Æ
Insert the upper locking hook on the PRB into the standard rail and press the
bottom surface against the rail until the PRB dicks into place.
Æ
The PRB is removed by pulling the locking lever downward. With the lever held
down, the PRB can be simply lifted off the top hat rail.
Fig. 18: Installing a PRB on a standard top hat rail
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com