Festo VIFB21-03--... 0010a English
14
3
Pin assignment of the operating voltage
1
24V supply for elec-
tronics and inputs
2
0 V
3
24V supply for
valves and outputs
4
0 V
5
Functional earth/
ground
4
3
2 5
1
Please note
Pins 2 and 4 (0V) are connected internally. Due to a
voltage drop in the mains power cable, we recommend
that both pins be connected.