Connection Example Of A Two-Wire Sensor - ABB ACS550 User Manual

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Connection example of a two-wire sensor

Many applications use process PI(D) and need a feedback signal from the process.
The feedback signal is typically connected to analog input 2 (AI2). The macro wiring
diagrams in this chapter show the connection when a separately powered sensor is
used. The figure below gives an example of a connection using a two-wire sensor.
P
I
Note: The sensor is supplied through its current output. Thus the output signal must
be 4...20 mA, not 0...20 m A.
Application macros
X1 / control board
4...20 mA
5 AI2 Process actual value measurement,
0(4) ... 20 mA, R
6 AGND
...
X1 / control board
10 +24 V Auxiliary voltage output, non-isolated,
24 V DC, 250 mA
11 GND
= 100 ohm
in
ACS550 User's Manual