89

Parameter read only

Danfoss · VLT Micro Drive FC 51

What does 89 mean?

An attempt was made to write a value to a parameter that is configured as read-only. This typically occurs when trying to change system information, diagnostic values, or parameters that can only be modified internally by the drive, protecting critical settings.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    If a parameter needs to be changed and is marked read-only, it might indicate an incorrect operational mode or a parameter group that requires specific access levels (e.g., a master password).

  2. 4

    Consult the manual for any conditions under which the parameter's write access might be temporarily enabled.

Source: Danfoss VLT Micro Drive FC 51
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