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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.

b00000 - b06409

Boot error code (Various)

ABB · Application Error ABB Motion Drives Error trouble shoo

What does b00000 - b06409 mean?

The drive displays a boot error code (starting with 'b' on the seven-segment display) indicating a fatal error during the boot-up process. This generally points to issues with the memory module, firmware, or connected external hardware.

Common Causes

  • Memory module not correctly fitted or damaged.
  • Corrupt firmware preventing successful boot-up.
  • Damaged encoder drawing down the control board voltage, causing boot failure.
  • Other connected external hardware interfering with the boot process.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Power down the drive, then remove and re-seat the memory module, ensuring it is correctly fitted.

  2. 2

    Disconnect all connections apart from the logic supply power source.

  3. 3

    Specifically, remove the encoder connection, as a damaged encoder can drag the control board voltage down.

  4. 4

    Power up the drive again after performing the above steps.

  5. 5

    If the problem persists, replace the memory module. If still unresolved, replace the drive unit.

Browse all codes in this manual (58)
Verified technical data. Last updated: April 2026

Related Faults

-Initialization error (check memory unit insertion)10019Motor temperature trip (_ecMOTOR_TEMP_INPUT)10020Phase search failure (_ecPHASE_SEARCH_FAILED)
Source: Application Error ABB Motion Drives Error trouble shoo
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