Zeror.ai Error Codes Siemens F30051

Siemens F30051

Brand: SiemensModel: SINAMICS G120 CU250S2Error code: F30051

What the Fault Means

Fault: Power unit: Motor holding brake short circuit detected

Likely causes

  • A short-circuit at the motor holding brake terminals has been detected
  • Fault value (r0949, interpret decimal): Only for internal Siemens troubleshooting.

Solution and Safe First Checks

  1. check the motor holding brake for a short-circuit.
  2. check the connection and cable for the motor holding brake.

Safety: do not work inside the panel without isolating the power; if unsure, consult a qualified technician.

Related Siemens error codes

Source: the Zeror.ai industrial fault database and Siemens technical documentation. This page is for information; on critical systems follow the manufacturer's manual and authorised service.

Siemens F30051 · Zeror.ai