Motorola ACE3600 RTU - I;O Connection Diagram

Digital Input Module
6-10
I/O Connection Diagram
Connection of a dry contact sensor to the DI module requires “wetting” the contact with a
voltage. This can be done using the 24V DC floating plug-in power supplies that can be added
to the module (in 16/32 DI Fast 24V/ Fast 24V IEC TYPE 2 modules only). The 24V can be
also used to power “wet” sensors.
Dry Contact
Sensor
DIx (input x)
DIx (input x)
COM (common)
“Wet”
Sensor
DI Module
DI Module
+
-
COM (common)
External
Wetting
Source
+
-
External
Wetting
Source
+
-
Dry Contact
Sensor
DIx (input x)
+24V (Plug-in PS)
DIx (input x)
COM (common)
“Wet”
Sensor
+24V (Plug-in PS)
DI Module
DI Module
+
-