F126
NonRecoverablErr
Allen-Bradley · PowerFlex 520-series Adjustable Frequency AC Drive
What does F126 mean?
A non-recoverable firmware or hardware error has been detected, causing the drive to automatically stop and reset. This is a severe internal issue that the drive cannot self-correct, indicating persistent damage to the hardware or a critical, unrecoverable software fault.
Additional Steps
Steps 1–2 are listed in Priority Fix.
- 3
If the fault cannot be cleared, replace the entire drive or the control module, as the error is persistent and beyond field recovery.
Source: Allen-Bradley PowerFlex 520-series Adjustable Frequency AC Drive
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