18

HPFB bus timeout

Danfoss · VLT 2800 Variable Speed Drive

What does 18 mean?

No serial communication is occurring with the adjustable frequency drive’s communication option card (HPFB bus). This warning is active only when parameter 804 (Bus time interval function) is set to a value other than OFF. If set to 'Stop and trip', it will ramp down and trip into an alarm state.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Review parameter 804 (Bus time interval function) and parameter 803 (Bus time interval); consider increasing parameter 803 if necessary.

Source: Danfoss VLT 2800 Variable Speed Drive
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