Siemens F29011 fault code meaning

Series: G220

Infeed: Power unit mains imbalance

converter

Meaning: The DC bus voltage ripple at the power unit exceeded the applicable limit for too long. An abnormal frequency was detected, indicating possible mains imbalance or phase loss. A motor phase may also be missing. Possible causes: - Loss of a mains phase. - Excessive imbalance across all three power supply phases. - The capacitance of the DC bus capacitors, the power supply inductance, and any reactor integrated into the power unit together form a resonant frequency. - A fuse in one phase of the main circuit has failed.

Possible causes

Source: SINAMICS G220 Converter P1408

Series: S220

Infeed: Power unit mains imbalance

converter

Meaning:

Possible causes

Source: SINAMICS S220 converter P2409