Rockwell Automation 1758-RTU202 DataSite Hardware User Manual - Manual (Page 31)

Publication 1758-UM001D-EN-P - June 2011
Wiring the Controller 31
Wiring for Analog Input (AI)
The analog input circuits are equipped with overvoltage and overcurrent
protection to avoid damage due to false field connection. The field connection
can be divided into two-wire system and three-wire system.
There are two types of adjustable input ranges for analog inputs, 0…10V for
the 1758-FLO301 and 1758-RTU201 controllers, and 4…20 mA for the
1758-FLO302 and 1758-RTU202 controllers.
Wiring for Analog Output (AO)
AO has one type of output range, 4…20 mA. The output end is equipped with
short-circuit protection. It can be used to control the transducer, control valve,
temperature controller and other devices that need analog signal control.
V+ V- AI0 AI1 AI2 AI3 AI4 AI5 V-
S +
12V DC
power supply
2 wire 3 wire
2 3 4 5 6 7 8 9 10 1
44691
AOV+ AOV- AOV- AOV- AO1 AO0
LOAD LOAD
12…24 V
40 41 42 43 44 45
44692