Carrier · Energy Recovery Ventilators
Communication has been lost with the control panel. This fault occurs if the drive is in local control mode or if remote control mode is set to accept commands from the panel.
Click steps to track your progress.
Check the communication lines and connections to the control panel.
Verify parameter settings related to panel communication (e.g., parameter 3002).
Ensure parameters in Command Inputs (Group 10) and Reference Select (Group 11) are correctly set for remote operation.
Reset the VFD after checking connections and parameters.