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Siemens SINUMERIK Controller
Servo/Axis · Basic · 10-20 minutes
Siemens 840D 14290 - Channel block polynominal degree greater than 5 programmed
A polynominal degree greater than five was programmed for the polynominal interpolation. You can only program polynomials up to the 5th degree.
14290
Siemens 840D 14290 - Channel block polynominal degree greater than 5 programmed
Channel block polynominal degree greater than 5 programmed
A polynominal degree greater than five was programmed for the polynominal interpolation. You can only program polynomials up to the 5th degree.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Common Causes
- Programmer specified polynomial degree > 5 in POLY interpolation command
- Incorrect syntax or parameter value in G-code polynomial definition
- CAM post-processor configured for unsupported polynomial order
- Manual G-code entry error when defining spline or polynomial path
- Misunderstanding of POLY command limitations in 840D/828D control
Troubleshooting Steps
- 1Locate the referenced block number in the NC program and identify the POLY command with the excessive degree parameter
- 2Verify the polynomial degree value - reduce any degree specification greater than 5 to a maximum of 5th degree polynomial
- 3Review the CAM post-processor settings if using automated code generation, and reconfigure to output polynomial degrees within the 5th degree limit
- 4Check Siemens 840D/828D programming manual for correct POLY syntax and degree parameter constraints
- 5Regenerate or manually correct the G-code, then reload and retest the program
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Always verify with your machine manual or a certified technician before performing service procedures.