Carrier TruVu TV-MPCXP1628-NR, Installation And Startup Manual

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Wiring inputs and outputs
TruVu™ MPC Controller ( part no. TV-MPCXP1628-NR) CARRIER CORPORATION ©2021
Installation and Start-up Guide All rights reserved
33
Inputs
The TV-MPCXP1628-NR has inputs that accept the following signal types.
Signal Type Description
Thermistor 1
•
Precon Type 2 (10kOhm at 77 °F)
•
Precon Type 3 (10kOhm at 77 °F)
•
Carrier YSI 5kOhm at 77 °F
•
TS-5700-850 10kOhm w/ 11kOhm shunt (5238 ohm@77°F)
Input voltages should be from 0.09 Vdc to 4.36 Vdc for thermistors.
Dry contact The maximum current when the contact is closed is 0.5 mA. The input voltage should be
4.5V when the contact is open. Maximum closed contact resistance is 1kOhms.
0 – 5 Vdc
0 – 10 Vdc
The input impedance of the TV-MPCXP1628-NR is approximately 221 kOhm when
configured as a voltage input.
0 – 20 mA The input resistance on the positive (+) terminal is 200 Ohms when configured as a current
input. Each 24 Vdc connector is capable of supplying 24 Vdc to multiple 4 – 20 mA
transducers.
RTD 1
•
Platinum 1kOhm at 32°F (0°C) (0.00375 TCR)
•
Nickel-iron 1kOhm at 70°F (21°C)
•
Platinum TS-8000 1kOhm at 32°F (0°C) (0.00385 TCR)
•
Balco (nickel-iron) TS8000 1kOhm at 70°F (21°C)
Input voltages should be from 0.3 – 0.68V.
NOTE Carrier recommends use of an external current transducer between an RTD and the
TV-MPCXP1628-NR to improve accuracy and resolution.
Pulse counter 2
Pulse counting up to 60 pulses per second.
Minimum pulse width (on or off time) required for each pulse is 8.33 msec.
1 To use a thermistor or RTD not listed above, you can set up a custom translation table for your sensor in the
controller's driver.
2 The TV-MPCXP1628-NR can perform pulse counting for dry contact or voltage inputs if you assign the input to a
Pulse to Analog Input microblock. See To adjust input and output properties (page 40).
WARNING Do not apply voltage to any input configured for 0-20 mA as this could damage the expander.
Wiring inputs and outputs