WARNING/ALARM 2

Live zero error

Danfoss · VLT HVAC Basic FC 101

What does WARNING/ALARM 2 mean?

The signal on one of the analog inputs is less than 50% of the minimum value programmed for that input. This condition is typically caused by broken wiring, a loose connection, or a faulty signal-sending device connected to the frequency converter's analog input.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Test the external device sending the analog signal to ensure it is functioning correctly and providing an adequate signal level.

Source: Danfoss VLT HVAC Basic FC 101
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