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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

F30052

EEPROM data error

Siemens · SINAMICS G120C Variable Speed Drive

What does F30052 mean?

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.

Common Causes

  • Corruption of EEPROM data within the power unit module due to power fluctuations or an unexpected power loss during a write operation.
  • Incompatibility between the power unit's EEPROM data and the currently loaded Control Unit firmware version (fault value 1).
  • Internal hardware defect in the EEPROM chip or its interface within the power unit (fault values 0, 2, 3, 4).
  • Improper parameter loading or incorrect data transfer during initial commissioning or firmware update.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Perform a power cycle of the drive system (main power off/on) to attempt re-initialization of the EEPROM data.

  2. 2

    Check the integrity of the Control Unit firmware. If necessary, re-load the correct firmware version to the Control Unit.

  3. 3

    Execute a factory reset of the power unit parameters (P0010 = 30, P0970 = 1) and then re-commission the drive.

  4. 4

    If the fault persists after re-commissioning, the power unit module's EEPROM is likely damaged and requires replacement.

Browse all codes in this manual (34)
Verified technical data. Last updated: April 2026

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A01590Drive: Motor maintenance interval expiredA05001Power unit: Overtemperature depletion layer chipA05002Power unit: Air intake overtemperature
Source: Siemens SINAMICS G120C Variable Speed Drive
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