ABB ACS380 Series, Hardware Manual

Page: 71 / 186

Electrical installation 71
Connection examples of two-wire and three-wire sensors
The figures give examples of connections for a two-wire or three-wire
sensor/transmitter that is supplied by the auxiliary voltage output of the drive.
Note: Do not exceed the maximum capability of the auxiliary 24 V (200 mA) output.
Note: The sensor is supplied through its current output and the drive feeds the supply
voltage (+24 V). The output signal must be 4…20 mA, not 0…20 mA.
AI2 Process actual value measurement or reference,
0(4)…20 mA,
R
in
= 137 ohm
AGND
+24V Auxiliary voltage output, non-isolated,
+24 V DC, max. 200 mA
DGND
4…20 mA
Two-wire sensor/transmitter
+
-
P
I
AI2 Process actual value measurement or reference,
0(4)…20 mA,
R
in
= 137 ohm
AGND
+24V Auxiliary voltage output, non-isolated,
+24 V DC, max. 200 mA
DGND
(0)4…20 mA
Three-wire sensor/transmitter
+
-
OUT
P
I