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Examine the NC block at error location. Identify the axis referenced in parameter %3 of the alarm message and confirm spindle command (M3/M4/M5) exists in block %2.

Note the exact axis name and spindle speed value for reference.

Access Siemens HMI > Diagnosis > Machine Data > Transformation Parameters (MD32000 range). Review TRAFO_TYPE and TRAFO_AXES declarations to confirm which axes are geometry axes versus tool axes.

MD32003 (TRAFO_AXES) defines geometry axis assignment; spindle axis must NOT appear here if spindle operation is required.

Cross-reference the spindle axis assignment in MD35200 (Spindle Parameters) with the transformation geometry axis list. Verify spindle axis is NOT listed as a geometry axis in the TRAFO configuration.

Modify the NC program: either (a) remove the spindle command from blocks where transformation is active, (b) deactivate transformation (G52.2 with zero offset) before spindle command, or (c) reconfigure transformation to exclude spindle axis from geometry axes.

If using multi-tasking, ensure spindle and transformation commands do not execute in overlapping blocks on the same channel.

Navigate to NCK menu > Machine Data > Transformation > TRAFO_AXES (MD32003). Verify that the spindle axis (typically C or B axis) is NOT listed in the geometry axis parameter group.

Compare against reference machine data for your machine model; spindle axes should be in TRAFO_TOOL_AXIS parameter, not TRAFO_GEOM_AXIS.

If spindle axis is incorrectly listed as geometry axis, correct the parameter assignment. For 5-axis machines with C-axis spindle, C should appear in tool axis definition (MD32005 or equivalent), not in geometry axis list.

Reload kinematic configuration after modifying transformation parameters; use PLC cold start to ensure changes propagate.

Verify spindle orientation mode (G95 vs. G94, G97 vs. G96) is compatible with the transformation setting. Use G97 M3 for fixed RPM during transformation-active blocks if spindle orientation is not required.

Review the NC program block sequence around the error. Identify if G5.3 (TCPM on), G52.2 (transformation), or TRAFO statement precedes the M3/M4/M5 command without an intervening deactivation or axis-stop statement.

Check for implicit transformation activation from previous blocks; transformation may remain active even if not explicitly stated in current block.

Insert explicit transformation deactivation (G52.2 with zero offset or TRAFO OFF) immediately before spindle commands. Alternatively, use separate NC blocks: deactivate transformation, execute spindle command, then reactivate transformation if needed.

Ensure sufficient blocks between transformation toggle and spindle command to allow axis synchronization (typically 1-2 blocks minimum).

For 5-axis simultaneous operations requiring spindle speed changes, use DM (Distributed Mode) spindle parameter setting if available on your SINUMERIK model, allowing spindle control independent of geometry axis transformation.