Designated Use - Festo CPX Electronic Manual

Contents and general instructions

Designated use

VI
The CPX pneumatic interfaces and CPX I/O modules de-
scribed in this manual have been designed exclusively for use
in conjunction with CPX terminals from Festo. The pneumatic
interfaces and I/O modules are only to be used as follows:
– in accordance with designated use
– in faultless technical condition
– without any modifications by the user.
If additional commercially-available components such as sen-
sors and actuators are connected, the specified limits for
pressures, temperatures, electrical data, torques, etc. must
not be exceeded.
Please observe the standards specified in the relevant
chapters and comply with technical regulations, as well as
with national and local regulations.
Caution
Use only power units which guarantee reliable isolation of
the operating voltages as per IEC 742/EN 60742/VDE 0551
with at least 4 kV isolation resistance (Protected Extra Low
Voltage PELV). Switch power packs are permitted, provid-
ing they guarantee reliable isolation in accordance with
EN 60950/VDE 0805.
Please note
By the use of PELV power units, protection against electric
shock (protection against direct and indirect contact) is guar-
anteed in accordance with EN 60204-1/IEC 204. Safety trans-
formers with the adjacent symbol must be used for supplying
PELV networks. The valve terminals must be earthed to en-
sure that they function correctly (e.g. EMC).
Festo P.BE-CPX-EA-EN en 0112NH