Siemens · SINAMICS G120C Variable Speed Drive
An EEPROM data error has occurred within the power unit module, indicating either inconsistent data (fault values 0, 2, 3, 4) or data incompatible with the Control Unit firmware (fault value 1). This error implies a critical issue with the power unit's fundamental configuration or operational data. The drive cannot function correctly or safely until the corrupted data source is replaced.
Click steps to track your progress.
Perform a power cycle of the drive system (main power off/on) to attempt re-initialization of the EEPROM data.
Check the integrity of the Control Unit firmware. If necessary, re-load the correct firmware version to the Control Unit.
Execute a factory reset of the power unit parameters (P0010 = 30, P0970 = 1) and then re-commission the drive.
If the fault persists after re-commissioning, the power unit module's EEPROM is likely damaged and requires replacement.