Festo CPA-SC-DP Brève Description page 17

2.2 Example of connection with electrical isolation of
electronic voltage and load voltage
1
Power unit for load
voltage (valves and
outputs)
2
Device for isolation
monitoring
3
Load voltage can
be switched off
separately and
external fuses
4
Power unit for
operating voltage
(electronics and
sensors)
Please note
If the device is extended with CP valve terminals or out
put modules without additional supply, the electrical
isolation will not be effective. In this case insert a
bridge between pins 3 and 4 of the power supply (see
section 2.1). This will prevent compensating currents.
Festo CPASC−DP 0610NH English
1 3
2
2
4
17