General Errors

Error Message

Cause and Solution

E828

Iterations didn't converge

Simultaneous iterations for friction and single-directional restraints failed to converge.

1. Switch to iteration mode 1-5 in Project Settings. This usually resolves the issue.

2. Adjust marker spacing in Project Settings. Default is 500D. For convergence issues, use 50D-100D. Enable "display additional markers" in 3D View Properties to see them.

3. Check for small gaps in the model. Do not model installation tolerances as gaps. Multiple small gaps (1-3 mm) at supports cause convergence problems. Remove them.

Model only significant structural gaps controlled during installation, such as limit stops or seismic stops. These are typically larger (>5 mm) and few in number.

4. If iterations fail due to precision loss, insert markers. Add markers on both sides of a branch connection when branch diameter is significantly smaller than the run pipe.

5. Set the friction factor to zero for the problematic restraint.

6. Remove the suspect support. Check displacements at the free node. If displacement is within allowable limits or very small (<5mm), the solution is nearly correct. If displacement is larger but stress and other restraint loads are acceptable, the system may perform adequately without the support.

7. Make slight model modifications: adjust pressure, temperature, or support locations. Minor changes can sometimes achieve convergence.

8. Set the friction factor to zero for all supports.

9. Insert markers. This often resolves the issue.

10. Check for geometric nonlinearity and correct the model.

11. Divide large models into smaller segments using fixed anchors. See Independent Piping Segments.

12. If these steps fail, send the START-PROF project file to technical support.

E065

Variable spring support selection code not set

Variable spring supports are in the model, but the analysis code is not specified in Project Settings.

Cold spring selection not available for high-temperature pipelines

Cold spring analysis is not permitted for high-temperature piping systems.

E071

Test pressure not defined for some elements

Test pressure must be specified for all elements when hydrotest analysis is required.

E154

Insufficient self-compensation. Not enough restraints.

The model lacks sufficient supports.

E263

Operating temperature does not match temperature cycles

Maximum operating temperature must equal the maximum value in the temperature cycle history.

E278

Locking temperature not set for single-use expansion joint

The installation/welding temperature is not defined for a single-use expansion joint.

E037

Buried elements not permitted for RD-10-249-98

The RD-10-249-98 code does not cover buried piping elements.

E053

No additional loads defined

No additional loads are specified in the model.

E127

Materials database not found

The materials database is missing from the specified path.

E128

Springs database not found

The spring supports database is missing from the specified path.

E129

Soil database not found

The soil database is missing from the specified path.

E279

Expansion joints database not found

The expansion joints database is missing from the specified path.

E258

No loading cycles defined

No cycle properties are defined in the temperature cycle history.

E212
E264
E294

Number of degrees of freedom exceeds 1000

The model exceeds the limit for unknown values. Use START-PROF for larger models.

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Error code 306 for all elements

Cannot create temporary file. Access is denied.

E239

Kinematically unstable system or insufficient supports for rigid restraint. Check model and/or add markers.

The model is a mechanism, not a stable structure. An unstable system cannot resist loads. Check the model and add supports. Examples of unstable systems:

E306

Cannot open temporary file

Cannot access START-PROF temporary files. Change the temporary files path: Service > Settings > Path to files > Temp files.

E019

Cannot open file

One of the following file paths is incorrect:

Material.sqlite3 (Materials database)

Prug.sqlite3 (Springs database)

Grunt.sqlite3 (Soil database)

Comp.sqlite3 (Expansion joints database)

Insulation.sqlite3 (Insulation database)

Corrosion.sqlite3 (Corrosion database)

Pereg.txt (Overload factor database, path specified in CTAPTDIR (CTAPTDIR\Base) in registry HKEY_LOCAL_MACHINE\SOFTWARE\PSRE LTD\CTAPTPR\04.67\Settings) More...

E059
E398

E399

Unknown error. Contact software developers.

Send the .ctp project file to the START-PROF design team for analysis at support@passuite.com.

E258

No temperature cycles defined

Temperature cycles are not defined.

E639

Marker required

To run the analysis, at least one of these conditions must be met:

• A fixed anchor at an end node.

• A moment-free anchor at an end node.

• A free pipe end without restraints, with or without a cap.

• A marker placed at any model node.

Files not found

Some databases are missing. Check the "Paths to files" tab in General Settings and verify database locations, or reinstall the software.