Carrier UC Open XP, Installation And Startup Manual, Page: 18 / 44

UC Open XP installation
14 UC Open XP/UC Open XP IO
Binary outputs
The UC Open XP has 6 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 controller, 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 controller to the controlled device
•
Resistance (Ohms) of the chosen wire gauge
• Maximum current (Amps) the controlled device requires to operate
Analog outputs
The UC Open XP has 6 analog outputs that support voltage or current devices. The controlled device must
share the same ground as the UC Open XP and have the following input impedance:
0–10 Vdc
0–20 mA
min 500 Ohms
max 800 Ohms
To wire inputs and outputs on the UC Open XP
1
Turn off the UC Open XP's power.
2
Connect the input wiring to the screw terminals on the UC Open XP.