ABB ECA06 - Page 34

2.4 Electrical Installation Chapter 2: Installation
34 493-0736-11 (6-2)
Figure 16 Three-wire connection with 24 V supply from the controller.
Figure 17 Separately supplied sensor with output signal electrically isolated from ground.
If an actuator potentiometer is used with a three-state pulse output it should be
connected as shown in Figure 18. In this case the potentiometer is fed from AO2.
The voltage type input has a fixed reference.
Transmitter
signal
–
+
J2
J1
250 Ω
AI1
+
–
z32
z10
z2
d16
d24
z30
d2
supply+
+24 V
Transmitter
signal
–
+
J2
J1
250 Ω
AI1
+
–
z32
z30
z2
d16
d24
d2
supply
EXT