Festo CPV GE-ASI-8E8A-Z-M8-CE Serie Mode D'emploi page 22

3.5 Connect the AS−Interface bus and the load voltage
Note
The sensor supply for the inputs is provided via the
AS−Interface bus.
The power supply for the valves (outputs) is provided
by the additional supply: The valves must be supplied
separately with 24 V via the load voltage connection.
The AS−Interface has an integrated watchdog function
which resets the outputs if the bus communication fails.
Warning
Use only power units which guarantee reliable electrical
isolation of the operating voltage as per IEC/DIN
EN 60204−1. Observe also the general requirements for
PELV power circuits as per IEC/DIN EN 60204−1.
By the use of PELV power units, protection against electric
shock (protection against direct and indirect contact) is
guaranteed in accordance with IEC/DIN EN 60204−1
(electrical equipment of machines, general requirements).
22 Festo CPV...−GE−ASI−8E8A−...−CE 0703NH English