1. Installation
1-13
Festo Festo P .BE CP FB13-E-EN en 9910c
1.5 Connecting the operating voltage
Information on the connection procedure as well on cables
and current requirements can be found in the manual
“CP System, installation and commissioning”.
Warning
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 guaranteed with the Festo valve terminals in ac-
cordance with EN 60204-1 / IEC 204.
Safety transformers with the adjacent s ymbol must be used
for supplying PELV networks. The valve terminals must be
earthed to ensure that they function correctly (e.g. EMC).
Please note
Check within the framework of your EMERGENCY ST OP
circuit, to ascertain the measures necessary for putting
your machine/system into a safe state in the event of an
EMERGENCY STOP (e.g. switching off the operating voltage
for the valves and output modules, switching off the com-
pressed air).
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