ABB ACS350 User Manual page 41

Connection example of a two-wire sensor
Hand/Auto, PID Control and Torque Control macros (see pages 91, 92, 93,
respectively) use analog input 2 (AI2). The macro wiring diagrams for these macros
show the connection when a separately powered sensor is used. The figure below
gives an example of a connection using a two-wire sensor.
4...20 mA
P
I
Note: The sensor is supplied through its current output. Thus the output signal must
be 4...20 mA.
WARNING! All ELV (extra low voltage) circuits connected to the drive must be used
within a zone of equipotential bonding, i.e. within a zone where all simultaneously
accessible conductive parts are electrically connected to prevent hazardous
voltages appearing between them. This is accomplished by a proper factory
grounding.
X1A
5 AI2 Process actual value measurement or reference,
4...20 mA, R
6 GND
...
9 +24V Auxiliary voltage output, non-isolated,
+24 VDC, max. 200 mA
10 GND
= 100 ohm
in
Electrical installation
41