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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.

dWF3

DriveWorksEZ Fault 3

Yaskawa · GA500 Maintenance and Troubleshooting

What does dWF3 mean?

Similar to dWF2, this fault signals a problem within the DriveWorksEZ program itself. It is not a hardware fault of the drive but rather an issue with the programmed logic that hinders correct operation.

Common Causes

  • Unhandled exception or error condition within a specific subroutine or function block in DriveWorksEZ.
  • Resource exhaustion (e.g., memory, CPU cycles) caused by complex or inefficient DriveWorksEZ logic.
  • Race condition between parallel execution paths within the DriveWorksEZ program leading to unexpected behavior.
  • Attempted division by zero or other mathematical impossibility in the DriveWorksEZ calculations.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    1. Identify the specific section of the DriveWorksEZ program that triggers the dWF3 fault during operation.

  2. 2

    2. Simplify complex logic blocks or split them into smaller, more manageable subroutines within DriveWorksEZ.

  3. 3

    3. Implement error handling mechanisms (e.g., IF-THEN-ELSE statements) to prevent invalid operations within the DriveWorksEZ program.

  4. 4

    4. Check for proper termination of loops and conditional statements to avoid infinite execution in DriveWorksEZ.

  5. 5

    5. Test the modified DriveWorksEZ program incrementally, verifying each change does not introduce new faults.

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

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CECommunication Data ErrorCFControl FaultCP1Comparator 1 Limit Error
Source: Yaskawa GA500 Maintenance and Troubleshooting
View Official PDFSearch more codes in this manual