Siemens M7-400, S7-400 Non-Isolated Measured Value Sensors, Connection of Voltage Sensors

Interface Submodules
13-39
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Non-Isolated Measured Value Sensors
Potential differences must not arise between non-isolated measured value sensors.
If necessary, you must take additional installation measures (equipotential bonding
conductor) to ensure this.
Figure 13-14 shows the connection of non-isolated measured value sensors.
+
-
VE0
Non-isolated
measured value
sensors
Ground bus
+
-
VE1
MSENSOR
MV0+
M0-
MV1+
M1-
Figure 13-14 Connection of Non-Isolated Measured Value Sensors
Connection of Voltage Sensors
Figure 13-15 shows the connection of voltage sensors to the analog input module.
+
-
U
+
-
U
+24 V MV0+
M0-
MV1+
M1-
M
L+
VCM1
VCM0
0 V
Figure 13-15 Connection of Voltage Sensors