E2-27

Failed to Set 'Reboot at Powerfail' Parameter

ABB · System

What does E2-27 mean?

The CPU failed to set the 'Reboot at powerfail' parameter, which controls the system's behavior during power interruptions. This means the system might not restart correctly or automatically after a power failure, potentially requiring manual intervention to resume operation. This impacts system resilience.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Attempt to re-set the parameter through the engineering software, ensuring the change is applied and saved.

  2. 4

    If the issue persists, consider a firmware update for the CPU or advanced diagnostics.

Source: ABB System
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