Connection For Obtaining 0; Connection Examples Of Two-Wire And Three-Wire Sensors - ABB ACH580-01 Hardware Manual

Connection for obtaining 0...10 V from analog output 2 (AO2)
To obtain 0...10 V from analog output AO2, connect a 500 ohm resistor (or two 1 kohm
resistors in parallel) between the analog output 2 AO2 and analog common ground
AGND.
Examples are shown in the figure below.
500 ohm
8 AO2. Analog output 2. Default output 0...20 mA.
9 AGND. Analog common ground. Internally connected to chassis through a 2 Mohm resistor.

Connection examples of two-wire and three-wire sensors

Note: Maximum capability of the auxiliary 24 V DC (250 mA) output must not be
exceeded.
Two-wire sensor/transmitter
-
4...20 mA
P
+
I
5 AI2 Process actual value measurement or reference, 0(4)...20 mA, R in = 100 ohm
6 AGND
10 +24V Auxiliary voltage output, non-isolated, +24 V DC, max. 250 mA
11 DGND
Three-wire sensor/transmitter
Note: The sensor is supplied through its current output and the drive feeds the supply
voltage (+24 V DC). Thus the output signal must be 4...20 mA, not 0...20 mA.
X1
8 AO2
9 AGND
X1
5 AI2
6 AGND
...
10 +24V
11 DGND
Electrical installation – IEC 145
X1
1 kohm 1 kohm
8 AO2
9 AGND