Mounting and connection
EP3204 and EP3314
28
Version: 2.2
5.2.3.2
EP3314: Thermocouples
The temperature compensation is fed to the outside of the modules. This means that in the connector the
temperature compensation is measured directly at the connection point. This allows the temperature to be
measured with significantly better accuracy. Beckhoff offer a connector (ZS2000-3712) for this. The
temperature compensation can also be carried out at a location other than the Fieldbus Box. You must then
wire a PT1000 between pins 1 and 3. The longer the cables you choose to use, the larger is the
measurement error caused by the length of the conductor, conductor losses and interference.
Fig. 16: Signal connection - thermocouple
Supply voltage
U
S
- supplies the electronics for the fieldbus and for the sensor. It is electrically isolated from U
P
.
U
P
- Is not required for the function of the module, and does not have to be fed in.
NOTE
Redirection of the supply voltages
If you use U
P
to pass the power on, and you connect a module in which U
S
and U
P
are not electrically iso-
lated (e.g. any digital module) then the electrical isolation is removed by the downstream connection.
Содержание EP3204
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