Technical data

CONTROL PANEL ETV 1961
Page 14 08.07.2014
Wiring Guidelines
Earth Connection
The terminal must be connected to earth through the mounting on control cabinet or over
the terminal provided. It is important to establish a low-Ohm earth connection, as it is the
only way to ensure error-free function. The earth connection must be made with the max-
imum cross section and largest electrical surface possible.
All noise signals that reach the terminal over external wiring must be filtered over the earth
connection. With a large electrical surface, high frequency noise can also be dissipated
(skin effect).