Festo PROFIBUD-DP, Elektronics Manual

Page: 43 / 154

1. Installation CPV−DI02 and CPV−CS02
1−29
Festo P.BE−CPV−DI02−EN en 0704NH
1.5.3 Connecting the power supply
Warnin g
If the valve terminal is supplied with load voltage via an
output of a safety I/O module", switch−on test pulses of
the safety I/O module" may lead to unexpected reactions
of the valve terminal.
·
Make sure that switch−on test pulses are reliably
suppressed or switched off.
Power is supplied via a 4−pin M12 plug (see Fig.1/1).
Current consumption depends on the type of valve terminal.
Please refer to the Pneumatics manual, P.BE−CPV−..." and the
previous section for the values.
·
Observe the tolerance with the connection for the 24V
load voltage at pin2: DC 20.4
Ū
26.4 V DC. Check the
24V operating voltage of the valves whilst the system is
operating.
Caution
Protect the load voltage of the CPV valve coils with a
max.2A external fuse.
In this way you can avoid functional damage to the CPV
Direct in the event of a short circuit.