User manual

USER MANUAL 1.4 | EC1000
Berghof Automation GmbH | Harretstrasse 1 | 72800 Eningen | www.berghof.com
2VF100179FE04.docx | EC1000_HB_en_2D1652005ZD00.docx
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2.6.3. Earth
Connect the EC1000 to earth by attaching the metal housing to operative earth.
Since the operative earth connectors dissipate HF currents, it is of utmost importance for the module's noise
immunity. HF interference is dissipated from the electronics board to the metal housing. The metal housing
therefore needs to be suitably connected to an operative earth connector.
You will normally have to ensure that
 the connection between module housing and DIN rail conducts well,
 the connection between DIN rail and switching cabinet conducts well,
 the switching cabinet is safely connected to earth.
In special cases you may attach the earth wire straight to the module.
NOTICE
Earth wires should be short and have a large surface (copper mesh).
Further details has site http://en.wikipedia.org/wiki/Ground (electricity).
Aluminium profile
Attach cable shield here
Connect DIN rail with operative
earth
M3x5 Bolt connec-
tion