Festo CPV-GE-ASI-4E4A Serie Notice page 20

CPV..-GE-ASI-4E4A-...
3.4 Connecting the AS-i bus and load voltages
PLEASE NOTE
The sensor supply for the inputs is provided via the AS-i
bus.
Voltage suppply of the outputs via the AS-i bus is only
possible with type CPV...-GE-ASI-4E4A.
Type CPV...-...-Z must always be supplied with 24 V via the
load voltage connection.
The AS interface type CPV..-GE-ASI-4E4A-... has an inte-
grated watchdog function which resets the outputs if there is
a bus communication failure.
WARNING
Use only power units which guarantee reliable electrical
isolation of the operating voltages as per IEC 742/EN 60742/
VDE/0551 with at least 4 kV isolation resistance. Switch
power packs are permitted, providing they guarantee reliable
isolation as per EN 60950/VDE 0805.
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