When a servo motor starts 'singing' (high-pitched whine) at specific RPM ranges but works fine otherwise, is this a mechanical resonance issue or an electrical tuning problem that needs immediate attention?

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Hey there! That&#39;s a great question about servo motor noise. When your servo starts &#39;singing&#39; at specific RPM ranges but works fine otherwise, it&#39;s actually more likely to be a mechanical resonance issue rather than an electrical tuning problem. Here&#39;s why:Mechanical resonance happens when the motor hits a speed that matches the natural vibration frequency of your mechanical system - like the motor mounting, couplings, or connected equipment. Think of it like a guitar string vibrating at its natural frequency. This creates that high-pitched whine at specific RPMs, while other speeds are quiet.Electrical tuning issues usually cause noise across a wider speed range or during stationary operation. They&#39;re often related to PID parameters being too aggressive or PWM frequency settings.The good news is that mechanical resonance isn&#39;t usually an emergency if the motor still functions properly. However, you should address it because prolonged resonance can cause wear and tear. Most modern servo drives have anti-resonance filters that can help tune out these specific frequencies.I&#39;d recommend checking your mechanical mounting first - make sure everything&#39;s tight and aligned properly. If the noise persists, you can use your drive&#39;s anti-resonance filter settings to target those specific RPM ranges where the whining occurs.

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When a servo motor starts 'singing' (high-pitched whine) at specific RPM ranges but works fine otherwise, is this a mechanical resonance issue or an electrical tuning problem that needs immediate attention?

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