F00071

USS setpoint fault

Siemens · SINAMICS G120 Variable Speed Drive

What does F00071 mean?

The drive has failed to receive setpoint values via the USS (Universal Serial Interface) communication protocol within the configured telegram off time. This suggests a problem with the USS master device or the communication settings, causing the drive to lose its operational commands and halt controlled operation.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Inspect USS communication cabling for damage or loose connections.

Source: Siemens SINAMICS G120 Variable Speed Drive
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