Festo VMPA...-FB-EPL Series, Electronic Manual

Page: 215 / 232

A. Technical appendix
A−25
Festo P.BE−CPX−EA−E N en 0705f
A.9.5 Circuitry example with DNCV
Connection with sub−base CPX−AB−4−M12−8POL.
1 2 3 4
2
3
1
5
4
8
6
7
Signal for proximity switch S2
Signal for proximity switch S1
24 V (proximity switch/
diagnosis)
0 V (proximity switch/
diagnosis)
Connection of valve coil 12
Connection of valve coil 14
0 V (valve)
Diagnosis (only with
DNCV−...−D)
1
CPX−8DE−8DA:
Sockets X1 ... X4
Pin assignment
(example X1):
1: 24 V
SEN
2: Ex
3: Ex+1
4: 0 V
SEN
5: Ax
6: Ax+1
7: Ex+4 *)
8: 0 V
OUT
2
Connecting cable type KM12−8GD8GS−2−PU,
Cable screening connected to functional earth via plug
housing
3
Cylinder−valve combinaton type DNCV−...
Example type DNCV−...−5/2J−D
4
Electronics (e.g. protection against short circuit or incor
rect polarity, voltage monitoring, holding current reduc
tion, diagnosis, ...)
Ex = Input x
Ox = Output x
*) not assigned with sockets X3 and X4
Fig.A/10: Circuitry examples of DNCV with sub−base CPX−AB−4−M12−8POL.