InF4
Invalid Industrialization Zone
Schneider Electric · Altivar Machine ATV320 Variable Speed Drive
What does InF4 mean?
An invalid industrialization zone has been detected. This is a factory-set parameter related to manufacturing origin or regional configuration. Such a fault indicates a deep internal inconsistency or potential tampering, preventing normal operation.
Common Causes
- The drive's industrialization zone setting is invalid or not supported.
- Incorrect value entered in parameter P1-05 (Industrialization Zone).
- Attempt to operate the drive in a region with incompatible safety standards.
- Firmware configured for a different geographical market.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Perform a factory reset to restore default regional settings if applicable.
- 2
Contact manufacturer support, as this may indicate critical internal data corruption or unauthorized modification.
- 3
If firmware was recently updated, ensure the firmware version is correct for the drive's region.
Verified technical data. Last updated: March 2026
Related Faults
Source: Schneider Electric Altivar Machine ATV320 Variable Speed Drive