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2 Installation
2.5 Connecting inputs
38
Operating instructions
05/10 MN05013003Z-EN
www.eaton.com
The following four circuits contain examples of applications for analog value
processing.
2.5.3.2 Power supply of
-AB devices and analog inputs
With easy-AB devices that process analog signals, the device must be fed via
a transformer so that the device is isolated from the mains supply. The
neutral conductor and the reference potential of the DC power feed of analog
sensors must be electrically connected.
Figure 20:
easy-AB analog input, connection of reference potentials
WARNING
Ensure that the reference potential is connected. Connect the
0 V of the power supply unit for the different setpoint
potentiometers and sensors shown in the examples to the 0 V
and neutral conductor terminal (easy-AB) of the easy power
supply. Otherwise incorrect switching states may occur if they
are not connected correctly.
→
Ensure that the common reference potential is grounded or
monitored by a ground fault monitoring device. Observe the
applicable regulations.
I7
L
N
I1
N
L
N
~
0 V
+12 V
L01
h
N01
h
I8
F1
EASY200-POW
Содержание easy500, easy700
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