A00525

DC-link Ripple

Siemens · SINAMICS G120 Variable Speed Drive

What does A00525 mean?

A large ripple in the DC-link voltage has been detected, which can indicate issues with the input power supply, filter capacitors, or excessive harmonic distortion. This condition can affect inverter performance, efficiency, and potentially lead to premature component failure.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Verify the proper functioning of the input rectifier bridge.

Source: Siemens SINAMICS G120 Variable Speed Drive
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