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BAS-SVX090B-EN
Figure 10. Binary inputs
Note: Polarity is normally open (NO) or ON. However, you can use the Polarity control (toggle) on the
Binary Input Point Configuration dialog box to reverse polarity to normally closed (NC) or OFF.
For example, you might reverse polarity when using a binary input with a freeze stat to open the
contacts to shut off power when a temperature declines to a given setpoint. Access the Point
Configuration dialog box from either the Tracer TU Controller Settings Utility Binary point list
screen or the right-click menus on the Tracer TU Status Utility Binary point list screen.
1. Connect the common wire to a common terminal as shown below.
Note: Because the common terminals are in parallel, wiring can be made to any common terminal.
2. Connect the shield wire (if present) to a common terminal at the termination board and tape it back
at the input device.
3. Connect the signal wire to an available input terminal.
4. Use the Tracer TU service tool to configure the input for binary operation.
0–10 Vdc Analog Inputs
The two universal inputs can be used to receive a 0–10 Vdc analog signal from sensors such as indoor
air quality sensors and pressure sensors. The illustration below shows a typical wiring for analog inputs,
0–10 Vdc.
Wiring
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