Siemens SINUMERIK codes
Siemens SINUMERIKProgram/G-codeIntermediate10-20 minutes

6100

Siemens Alarm 6100 - Coordinate Frame Error

Frame Error

Siemens SINUMERIK alarm 6100: Frame Error. This alarm indicates a fault or error condition on the SINUMERIK 840D control. Refer to the Siemens SINUMERIK alarm documentation for the complete description and remedy.

Root Cause Summary

SINUMERIK alarm 6100 Frame Error occurs when the NCK cannot calculate a valid coordinate transformation matrix due to invalid frame parameters, conflicting transformations, or corrupted work offset data. The alarm prevents machine movement when TRANS, ROT, SCALE, MIRROR, or kinematic transformations like TRAORI result in singular or out-of-range matrices.

Safety

  • Coordinate incorrect

Causes and Fixes

  1. 1

    Check Active Frame Commands

    In HMI Diagnostics > NCK > Channel Data > Frames, verify current TRANS, ROT, SCALE values are within valid ranges and not causing matrix singularity.

    Use G500 to reset all programmable frames and test if alarm clears

  2. 2

    Verify Program Frame Syntax

    Review NC program for proper frame command syntax. Check for SCALE values of zero, ROT angles causing gimbal lock, or TRANS coordinates exceeding machine data limits.

    SCALE=0 or extremely small values will cause immediate frame calculation failure

  3. 3

    Test Frame Reset

    Execute G500 (cancel programmable frames) followed by individual frame commands to isolate which transformation is causing the matrix calculation error.

DIY Feasiblehigh confidence

Call a technician if:

  • ·NCK memory corruption suspected
  • ·Machine data corruption
  • ·Kinematic calibration required

Prevention

  • Validate frame parameters before programming
  • Regular work offset backup
  • Avoid extreme SCALE values
  • Monitor tool data integrity

Common Mistakes

  • Using SCALE=0 in programs
  • Not resetting frames with G500
  • Ignoring work offset data validation
  • Combining too many transformations simultaneously

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