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

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Troubleshooting
TruVu™ MPC Controller ( part no. TV-MPCXP1628-NR) CARRIER CORPORATION ©2021
Installation and Start-up Guide All rights reserved
75
Reliability
description
Possible error Verify that...
Communication
Failure
•
Expander is not connected to the
controller.
•
The expander has no power.
•
The controller is offline.
•
The expander is connected to the
controller's I/O bus edge connector or
wired to the I/O Bus port.
•
The expander has power.
Configuration
Error
•
The microblock's I/O Type and
Sensor/Actuator Type are not
compatible.
•
The I/O Type and Sensor/Actuator Type
combination is valid for the I/O number
and microblock type.
•
The output's DIP switch setting does
not match the connected device.
•
The DIP switch setting is appropriate for
the output and microblock type.
•
Invalid expander address or I/O
number.
•
The expander is present and functional at
the address shown in the i-Vu® interface
and that I/O number is valid.
Over Range
•
Input exceeds the Min/Max limits.
•
The input is within the Min/Max limits.
No Output
•
Output's Hand-Auto-Off switch is in
Hand or Off position.
•
The expander's Hand-Auto-Off switch is in
the Auto position.
No Sensor
•
No device is attached to the output.
•
The device is present and functioning.
Shorted Loop
•
Internal voltage feedback does not
correspond with commanded value.
•
The load on the output is within the valid
range.
•
A voltage/current source has not been
connected to an output.
Open Loop
•
Internal current feedback does not
correspond with commanded value.
•
The load on the output is within the valid
range.
•
A voltage/current source has not been
connected to an output.
Unreliable Other
•
Feedback from the expander does not
correspond with commanded value (for
example, the output relay is not in
commanded state).
•
Expander may be faulty. Contact
Technical Support.