![Siemens SICAM A8000 Series Manual Download Page 77](http://html.mh-extra.com/html/siemens/sicam-a8000-series/sicam-a8000-series_manual_377373077.webp)
Standard I/O Modules
SICAM A8000 Series, SICAM I/O Modules
Unrestricted
77
DC8-012-2.06, Edition 09.2019
2.10.5
Block Diagram
Danger
The connectors X1 and X2 may be detached or attached in de-energized state only!
Warning
The inputs of the connectors X1 and X2 must not be connected directly with a mains supply circuit!
Note
Within the signal inputs exists only functional insulation. Therefore, the use of different current circuits is
not permitted.
Caution
Direct currents cannot be measured with CM-8820.
Note
Take account of the direction of current flow when connecting the current measuring inputs. With inverse
connection, the measured values are inverted and receive a negative sign.
CM-8820
1
2
3
4
5
6
7
8
9
1
0
X
1
D
N
C
I3
-
I3
+
I2
-/
IN
-
I2
-/
IN
+
I1
-
I1
+
D
N
C
D
N
C
1
2
3
4
5
6
I3
_
N
I3
_
P
I2
_
N
I2
_
P
I1
_
N
I1
_
P
X
2
R
R
R
F
E
S
h
ie
ld
reinforced insulation