Festo CPV -GE-DN2-8 Electronic Manual page 46

1. Installation
1-32
Potential equalization
The CPV valve terminal has two earthing connections for
potential equalization:
– on the power supply connection
– on the end plate.
Please note
S Always connect the earth potential to pin 4 of the power
supply connection.
S Connect the earth connection of the left-hand end plate
with low impedance (short cable with large cross-sec-
tional area) to the earth potential.
S With low-impedance connections you can ensure that
the housing of the valve terminal and the earth connec-
tion at pin 4 have the same potential and that there are
no equalizing currents.
In this way, you will avoid interference caused by electro-
magnetic influences.
Festo P.BE-CP-DN2-EN en 0107NH