Multi-step Speed References 1-15 Conflict with Jump Frequency

What does 086 mean?

This warning indicates that one or more of the multi-step speed references (A021-A035) are set to a value that conflicts with a defined jump frequency range (A063/A065/A067 ± A064/A066/A068). Operating at such a speed can cause mechanical resonance in the machine, potentially leading to damage or instability.

• One or more of A021-A035 (Multi-step Speed References) were configured to a frequency value that falls within a defined jump frequency band (e.g., A063 ± A064).
• Jump frequency parameters (A063-A068) were configured such that one of the bands unintentionally overlaps with an active multi-step speed reference.
• The intended operating frequency for a specific multi-step speed is within a range that needs to be avoided due to mechanical resonance in the system.

Click steps to track your progress.

1. 1

   Access multi-step speed reference parameters A021 through A035 and the jump frequency parameters A063 (Jump Freq 1), A064 (Jump Freq 1 Width), A065 (Jump Freq 2), A066 (Jump Freq 2 Width), A067 (Jump Freq 3), A068 (Jump Freq 3 Width).

2. 2

   Calculate the exact jump frequency bands (e.g., A063 minus A064 divided by 2 to A063 plus A064 divided by 2).

3. 3

   Identify which specific multi-step speed references (A021-A035) fall within any of the defined jump frequency bands.

4. 4

   For each conflicting multi-step speed reference, adjust its value to fall outside of all defined jump frequency bands.

5. 5

   Alternatively, if the multi-step speed references cannot be changed, redefine the jump frequency parameters (A063-A068) to ensure their bands do not overlap with any critical multi-step speeds.

6. 6

   Save the parameter changes and power cycle the drive. Then re-check the parameter values and test operation using all affected multi-step speed references.