
C-DIAS PROCESSOR MODULE
CCP 521
15.03.2016
Page 19
Wiring and Mounting Instructions
Earth Connection
The CCP 521 must be connected to earth over the mounting on the back wall of the control
cabinet or over the earth terminal provided (C-DIAS module carrier). It is important to cre-
ate a low-ohm earth connection, only then can error-free operation be guaranteed. The
earth connection should have the maximum cross section and the largest electrical surface
possible.
Any noise signals that reach the CCP 521 over external cables must be filtered out over
the earth connection. With a large (electrical) surface, high frequency noise can also be
well dissipated.