Festo CPX Electronic Manual page 140

A. Technical appendix
Power supply
I : Electronics/sensors
1
I : Outputs/valves
2
AC
DC
1
Line resistor (outgoing) R
2
Line resistor (returning) R
3
L = distance (cable length)
Fig. A/1: Equivalent circuit diagram for power supply
A−8
Terminal
I
1
Pin *)
:
I
2
:
Pin *)
I
0
: Pin *)
L
3
+ R
L1 L2
L0
Equivalent circuit diagram
V
B
R
L1
I
1
R
I1
R
L0
0 V
*) Pin assignment, see Tab. 3/4
V R V
L1 L2 L2
I
2
R
I2
V
OUT/VAL
V +V
L2 L1
Festo P.BE−CPX−SYS−EN en 0503b
1
2