Festo VIFB21-03--... 0010a English
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User instructions
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Field bus node 21 for valve terminals type 03 has been
designed exclusively for use as a slave on the INTERBUS
with fibre optic cable and rugged-line connection techhno-
logy. The maximum specified values in the technical spec-
ifications 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
S
Switch off the power supply before connecting or
disconnecting plugs and sockets (to prevent func-
tional damage).
S
Use only power units which guarantee reliable isola-
tion of the operating voltages as per IEC 742/EN
60742/VDE 0551
with at least 4 kV isolation resis-
tance (protected extra low voltage, PELV, see adjac-
ent symbol). Switch power packs are permitted if
they guarantee reliable isolation in accordance with
EN 60950/VDE 0805.
S
Connect an earth conductor with sufficiently large-
diameter to the connection marked if the valve ter-
minal is not mounted on an earthed machine stand.
Please note
Commission only a valve terminal which is completely
fitted and wired.
