Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 30-60 minutes

Alarm 61282

Siemens 840D 61282 - Channel block: end point of machining outside retraction planes

The end point of machining is outside the retraction planes. Alarm triggered by following cycle: F_SP_RP.

Siemens SINUMERIKServo/AxisIntermediate30-60 minutes

61282

Siemens 840D 61282 - Channel block: end point of machining outside retraction planes

Channel block: end point of machining outside retraction planes

The end point of machining is outside the retraction planes. Alarm triggered by following cycle: F_SP_RP.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Retraction plane (RP) set lower than the actual tool end point in the programmed cycle
  • Incorrect tool length offset causing tool to extend beyond defined retraction boundaries
  • Machine coordinate system misalignment or zero point offset not properly applied
  • F_SP_RP cycle parameters configured with retraction plane value too shallow for programmed depth
  • Tool change or tool length compensation change occurred without updating retraction plane reference

Troubleshooting Steps

  1. 1Review the F_SP_RP cycle call in the NC program for channel %1, block %2 and verify retraction plane (RP) parameter is set higher than the maximum tool penetration depth
  2. 2Check tool length offset values in the tool offset table and confirm they match physical tool lengths; compare against actual tool measurements
  3. 3Verify machine zero point and workpiece zero point offsets are correctly set and match the program expectations
  4. 4Compare programmed end point coordinates against retraction plane value; adjust RP parameter upward if end point Z-coordinate exceeds it
  5. 5Simulate the cycle in teach mode or dry run to visually confirm tool path and retraction plane relationship before production cycle

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