Peakanalyzer Installation Manual Version 2.6
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2.3.8 Connection of analog input terminals of type EL3702
Picture 7: Connection of analog input terminals of type EL3702
The input terminal of type EL3702 is used to measure external analog input signals. This can
be signals from displacement sensors, process signals or analog speed signals. The channels
can measure voltage inputs in the range -10 V
DC
to +10 V
DC
as differential signals. The
differential inputs are labeled with a black + and - on white ground. The channel itself is labeled
in the range 11 to 49. Picture 7 shows the connection of displacement sensors and other
possible external analog signals. The circuit also shows that the supply voltage for
displacement sensors is connected to the potential distribution terminal PV01 or the power
supply terminals X6 to X8. A connection to the power supply terminal X9 is not possible since
it does not provide the required supply voltage of 24 V
DC
.
Note:
The clamp labeled with black GND on blue ground is the signal ground for the analog
inputs. These serve
not
as supply for external consumer or reference potential. They should
not be confused with the clamps labeled with black - on blue ground.
2.3.9 Connection of analog 0-20 mA input terminals of type EL3742
The two channel analog input terminal EL3742 provides the possibility to connect 4-20 mA
sensors. This can be proximity sensors or pressure sensors. Furthermore external analog
signals with 4-20 mA or 0-20 mA can be connected. Commonly these are process factors like