Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 20-45 minutes

Alarm 10792

Siemens 840D 10792 - Channel block illegal interpolation type during linear

Only spline or linear interpolation is permitted for programming two straight lines with angle specification. Circular or polynomial interpolation is not allowed.

Siemens SINUMERIKServo/AxisIntermediate20-45 minutes

10792

Siemens 840D 10792 - Channel block illegal interpolation type during linear

Channel block illegal interpolation type during linear

Only spline or linear interpolation is permitted for programming two straight lines with angle specification. Circular or polynomial interpolation is not allowed.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • G-code block contains G02/G03 (circular interpolation) or G5 (polynomial spline) when angle specification is used with linear geometry
  • Programmer mixed interpolation modes in a sequence requiring only linear or spline interpolation
  • CAM post-processor generated incompatible interpolation type for angle-specified linear moves
  • Incorrect syntax combining angle specification (@) with unsupported interpolation commands

Troubleshooting Steps

  1. 1Review the G-code block at the specified line number and identify the interpolation command (G02, G03, G5, G1, or G5.1)
  2. 2Verify that only G01 (linear) or G5/G5.1 (spline) interpolation is used when programming straight lines with angle specification
  3. 3Remove or replace any G02/G03 (arc) or polynomial interpolation commands in the affected block
  4. 4Check CAM post-processor settings to ensure linear moves with angle specification do not generate circular or polynomial interpolation codes
  5. 5Re-simulate the corrected program in the control's Graphics Simulation function to confirm syntax compliance

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