Wiring Specifications - Carrier TruVu UCXP683T Installation And Startup Manual

Wiring inputs and outputs
Universal output
The TV-UCXP683T's universal output can be set as analog or binary using the Analog/Binary DIP switch located to
the left of the output terminals.
When the DIP switch is in the Analog position, the universal output can be used for pulse-width modulated (PWM)
control of devices, such as electrically commutated motors. When used in pulse-width mode, the output voltage is
12 Vdc and the frequency is locked at 80 Hz. Use a BAO microblock to enable this.
NOTE The PWM output signal is intended to directly control the speed of an ECM-type fan, eliminating the need
for an external converter board.
WARNING Do not apply voltage to the universal output if the DIP switch is set to Analog.

Wiring specifications

Input wiring
Input
Thermistor
Dry contact
0–5 Vdc
0–10 Vdc
Pulse counter
TLO
Output wiring
To size output wiring, consider the following:
•
Total loop distance from the controller 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
TruVu™ UCXP683T
Installation and Start-up Guide
Maximum length
1000 feet
(305 meters)
1000 feet
(305 meters)
1000 feet
(305 meters)
22
Minimum gauge
22 AWG
26 AWG
22 AWG
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