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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.

FbES

Function Block Stop Error

Schneider Electric · Altivar Machine ATV320 Variable Speed Drive

What does FbES mean?

A function block stop detected error. This means a fault condition was triggered within a function block that is designed to initiate a stop sequence. It indicates a problem with the stop logic or the conditions monitored by the function block.

Common Causes

  • Function block halted due to an error, preventing normal operation.
  • Critical parameter P1-07 set incorrectly for the function block.
  • Abnormal process conditions causing the function block to stop.
  • Interruption of a critical communication link to the function block.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Review the conditions configured for the function block that triggers the stop.

  2. 2

    Verify the inputs to the function block are within expected ranges and stable.

  3. 3

    Check for any time-outs or sequence errors within the stop function block logic.

  4. 4

    Ensure the function block is appropriately parameterized for the application's specific stop requirements.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

ASFAngle ErrorCFFIncorrect ConfigurationCFI2Configuration Transfer Error
Source: Schneider Electric Altivar Machine ATV320 Variable Speed Drive
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