2nd Multi-step Speed Reference 0 Conflicts with Jump Frequency

What does 285 mean?

For the second motor settings, this warning indicates that the 2nd Multi-step speed reference 0 (A220) or output frequency (F001) is set to a value that falls within one of the defined 'jump frequencies' (A063/A065/A067) with its associated width (A064/A066/A068). Operating at such a speed can lead to mechanical resonance or unstable operation for the second motor at that frequency.

• Parameter A220 (2nd Multi-step speed reference 0) is set to a value that falls within a configured jump frequency band (e.g., d011-d014 or similar).
• The current output frequency (F001) is attempting to operate within a forbidden jump frequency range, which is typically used to avoid mechanical resonance.
• An application-defined speed reference (A220) has been configured without considering the existing jump frequency settings (e.g., d011, d012).

Click steps to track your progress.

1. 1

   Read the current values of parameter A220 (2nd Multi-step speed reference 0) and F001 (Output frequency).

2. 2

   Identify all active jump frequency parameters (e.g., d011-d014 for jump frequency centers and d021-d024 for jump frequency widths) from the drive's manual.

3. 3

   Adjust parameter A220 to a value that is outside of any defined jump frequency bands by at least 1Hz.

4. 4

   Monitor F001 during operation to ensure it does not enter a jump frequency band, adjusting the speed command source if necessary.

5. 5

   Store the updated parameters in the drive's memory and restart the drive.