Hi David,
Is the motor isolated from any metal that can amplify the noise?
Can you provide motor specifications (R/L/I/V)?
Can you provide current waveforms when the noise is heard?
Have you tried other toff times, like toff=20us or 30us?
Have you tried other decay settings? There have been reports of some motors that have lower noise using one of the mixed / mixed settings (Decay1/Decay0 = 11, Z0, or Z1 ).
When holding, have you considered reducing the torque to 25% to reduce the noise and power?
Is the motor isolated from any metal that can amplify the noise?
Can you provide motor specifications (R/L/I/V)?
Can you provide current waveforms when the noise is heard?
Have you tried other toff times, like toff=20us or 30us?
Have you tried other decay settings? There have been reports of some motors that have lower noise using one of the mixed / mixed settings (Decay1/Decay0 = 11, Z0, or Z1 ).
When holding, have you considered reducing the torque to 25% to reduce the noise and power?