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Connection of
You can use a compensation box to compensate for the influence of the tem-
Thermocouples
perature on the reference junction (e.g. terminal box).
with Compensa–
Observe the following rules:
ting Box to Module
464–8MA11/8MA21
Two–Wire Connec-
You can use the following three modules to connect voltage sensors:
tion of Voltage
Sensors
Figure 7-3 shows the two–wire connection of voltage sensors.
Figure 7-3 Two–Wire Connection of Voltage Sensors (6ES5 464–8MB11, 464–8MC11,
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
The compensation box must have a floating supply.
The power supply must have a grounded shielding winding.
The compensation box must be connected to terminals 1 and 2 of the ter-
minal block.
Analog Input Module 464–8MB11 for voltages of
Analog Input Module 464–8MC11 for voltages of
and
Analog Input Module 466–8MC11 for voltages from 0 to 10 V
1
3
2
4
+
–
U
466–8MC11)
Analog Value Processing
1 V
10 V
5
7
9
6
8
10
+
+
– +
–
–
U
U
U
7-5
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