Saia-Burgess Controls AG
Manual
Manual PCD 1 / PCD 2 Series
│ Document 26
/
737 E
N22 │ 2013-11-26
5
Input/output (I/O) modules
5-74
Analogue input modules with electricaly isolation
The following connection diagram shows a typical wiring layout for:
●
Voltage inputs with the PCD2.W305 and .W325 modules or
● Current inputs for the PCD2.W315 module
●
If shielded cables are used, the shield should be continued to an external earthing
bar.
m
ax
.2
0c
m
E0
E1
E2
E3
E4
E5
E6
COM
COM
COM
COM
COM
COM
COM
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Earthing bar
Block diagram
Input filter
E0
COM
E1
COM
E2
COM
E3
COM
E4
COM
E5
COM
E6
COM
M
ul
tip
le
xe
r
A
D
C
Reference
Voltage 2.5V
μ
Controller
PCD Bus
I/O Bus
DC / DC
Converter
Galvanically
separate
interface
Electrically isolation
VCC
COM
+5 V GND