Motorola V186 User Manual - Page 42

Analog Input Modules I/O Connection Diagrams: There are two types of current sensors/transmitters, namely 2-wire and 4-wire. The 2wire transmitters require a serial power feed for the current loop, whereas 4-wire transmitters have a separate power supply connection. As a result, with 4-wire transmitters a single power supply may be used to provide power to several sensors; the diagram below describes the connection of the two types of current sensors to the analog input module. AI Module + - + 4 Wire + Current Sensor - - Shield AI+ (input x) AI - (input x) 2 Wire + Current Sensor - + - Shield AI Module AI+ (input x) AI - (input x) The diagram below describes the connection of 2-wire and 4-wire current sensors using the 24V PS plug-in on the Analog Input module. Note: 24V Plug-in is a future option. AI Module + 4 Wire + Current Sensor - Shielded Wire +24V (Plug-in PS) AI+ (input x) AI - (input x) COM (common) 2 Wire + Current Sensor - Shielded Wire AI Module AI+ (input x) +24V (Plug-in PS) AI- (input x) COM (common) 38