Festo VIFB21 Serie Manual De Instrucciones página 11

VIFB21 - 03
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User instructions
Field bus node 21 for valve terminals type 03 has been de-
signed exclusively for use as a slave on the INTERBUS with
fibre optic cable and rugged-line connection techhnology. The
maximum specified values in the technical specifications must
be observed.
Detailed information can be found in the pneumatics manuals
P.BE MIDI/MAXI-... and in the electronics manual P.BE VIFB21-03....
WARNING
• Switch off the power supply before connecting or
disconnecting plugs and sockets (to prevent functional
damage).
• 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, see adjacent symbol).
Switch power packs are permitted if they guarantee reliable
isolation in accordance with EN 60950/VDE 0805.
• Connect an earth conductor with sufficiently large
diameter to the connection marked
terminal is not mounted on an earthed machine stand.
PLEASE NOTE
Commission only a valve terminal which is completely fitted
and wired.
9909 NH
if the valve
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