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Start/End Distance Validation Failed

Error ID: 1107
Platform: Process Simulate
Severity: Error

This error is related to FANUC weld scheduling parameters:

  • SD (Start Distance): distance before a target where blending/scheduling starts.
  • ED (End Distance): distance after a target where blending/scheduling ends.

If SD/ED values require weld-gun axis motion outside configured limits, export is blocked.

Dialog text shown in Resolver​

Start/End Distance Validation Failed

The following weld operations have SD/ED values outside actuator limits:
- Operation: {operationName}, Robot: {robotName}, Gun: {gunName}
  SD={sdValue}, ED={edValue} outside limits [{minLimit}, {maxLimit}]
...
Press 'OK' to continue.

Start/End Distance Validation Failed dialog example

What this error means​

  • This is a blocking validation error.
  • The selected SD/ED values are invalid relative to weld-gun axis limits.
  • You must use an SD/ED index that does not force gun-axis motion beyond limits.

In this example, the largest SD/ED opening used is 80 mm.
As long as the upper limit of the external axis (for example E1) is greater than 80, this error will not appear for that case.

Example SD/ED values in Path Editor

How to fix it​

  1. In Process Simulate, locate operations listed in the dialog.
  2. Review the SD/ED index currently used by affected weld targets.
  3. Use another SD/ED index that stays within gun-axis limits, or adjust schedule/limits so values are valid.
  4. Save the project and run Resolver export/import again.
  5. Confirm the error no longer appears.