Festo VIFB-21 Serie Manual Del Usuario página 11

1 User instructionsEnglish
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
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.
Festo VIFB21−03−−... 0304b English
with at least 4 kV isolation resis
11