Binary Outputs; To Wire Inputs And Outputs - Carrier UC Open XP Installation And Startup Manual

Binary outputs

The UC Open XP IO has 8 binary outputs. Each output is a dry contact that must be powered from a Class 2
power source.
To size output wiring, consider the following:
•
Total loop distance from the power supply to the expander, and then to the controlled device
NOTE Include the total distance of actual wire. For 2-conductor wires, this is twice the cable length.
•
Acceptable voltage drop in the wire from the expander to the controlled device
• Resistance (Ohms) of the chosen wire gauge
•
Maximum current (Amps) the controlled device requires to operate

To wire inputs and outputs

Verify that the UC Open XP IO's power and communications connections work properly.
1
Turn off the UC Open XP IO's power.
2
Connect the input wiring to the screw terminals on the UC Open XP IO.
3
NOTE Connect the shield wire to the GND terminal with the ground wire.
UC Open XP/UC Open XP IO 21