ABB ACH480 Series - Connection for Obtaining 0; Connection Examples of Two-Wire and Three-Wire Sensors

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 AO2 and AGND. Examples are shown in the figure below.
AO2
AGND
500 ohm
0…10 V
AO2
AGND
1 kohm
0…10 V
1 kohm
Analog output 2. Default output 0 … 20 mA.AO2
Analog common ground.AGND
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.
P
I
-
+
4…20 mA
AI2
AGND
+24V
DGND
Process actual value measurement or reference, 0(4) … 20 mA, R
in
= 137 ohm. If the
sensor power supply comes through its current output circuit, use 4 … 20 mA signal,
not 0 … 20 mA.
AI2
AGND
Auxiliary voltage output, non-isolated, +24 V DC, max. 250 mA+24V
DGND
P
I
-
+
OUT (0)4…20 mA
AI2
AGND
+24V
DGND
Process actual value measurement or reference, 0(4)…20 mA, R
in
= 137 ohmAI2
AGND
Auxiliary voltage output, non-isolated, +24 V DC, max. 250 mA+24V
DGND
102 Electrical installation – North America