Example:
(Special case) The temperature of the busbar of an electroplating bath
is to be measured with an uninsulated thermocouple.
The potential of the busbar with respect to the reference potential of
the module is, for example, 24 V DC. A 460 analog input module with
isolated input is used (U
CM
= 60 V AC/75 V DC). An equipotential
bonding conductor must not be laid here because it would short-circuit
the busbar.
+
-
U
E
+
-
U
CM
0 V Bus
A
D
Analog Input Module
MUX
M +
M -
U
CM
Sensor,
Not Isolated
#
Range
Card for
4 Inputs
Figure 9-7
Measuring Circuit without Equipotential Bonding Conductor for the 460 Analog Input Module
The 460 Analog Input Module
System Manual
9 - 20
C79000-B8576-C109-03
