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Access HMI Diagnostics

Navigate to HMI → Diagnostics → Service → Alarms to identify the specific parameter (%1) causing the violation.

The %1 placeholder shows the exact parameter name - write this down for reference

Check Machine Data Parameters

Go to HMI → Commissioning → Machine → Machine Data and locate the flagged parameter in the MD3xxxx range for servo axes.

Do not modify parameters without understanding their impact on machine safety

Verify Parameter Limits

Cross-reference the entered value against SINUMERIK documentation or use SINAMICS Startdrive to check valid parameter ranges for your specific drive model.

Correct Parameter Value

Reduce the parameter value to within acceptable limits and perform a power-on reset (POR) to validate changes.

Use incremental changes and test axis movement after each adjustment

Review Scaling Parameters

Check MD31020 (position encoder resolution), MD31030 (gear ratio), and MD31050 (leadscrew pitch) for unrealistic values.

Incorrect scaling can cause dangerous axis movements

Calculate Resulting Resolution

Verify that encoder_resolution × gear_ratio doesn't exceed 2^31 increments per revolution to prevent integer overflow.

Adjust Scaling Strategy

If values are correct but cause overflow, consider using different encoder multiplication factors or adjusting MD31060 (measuring system units).

Use SINAMICS commissioning tool to validate drive-side scaling parameters

Check Velocity Limits

Navigate to Machine Data → Axis → Velocities and verify MD32000 (maximum velocity) against drive nameplate specifications.

Convert between RPM and linear units using your leadscrew pitch for linear axes

Verify Acceleration Settings

Check MD32300 (maximum acceleration) and ensure it doesn't exceed motor torque capabilities or mechanical system limits.

Cross-check Drive Parameters

Use SINAMICS Startdrive to verify P1082 (maximum speed) and P1226 (torque limit) align with SINUMERIK settings.

Mismatched limits between NCK and drive can cause unpredictable behavior

Review Position Monitoring

Check MD36010 (contour monitoring), MD36020 (positioning monitoring), and MD36030 (standstill monitoring) values.

These values are in machine units - ensure they make sense for your application

Validate Against Resolution

Ensure monitoring values don't exceed position counter limits when converted to encoder increments.

Adjust Monitoring Windows

Reduce monitoring values to reasonable limits based on expected machine performance and accuracy requirements.

Check Software Limits

Navigate to Machine Data → Axis → Working Area and verify MD36100 (negative software limit) and MD36110 (positive software limit).

Software limits are critical safety features - verify mechanical travel before changes

Verify Reference Point

Check reference point position values in MD34200 series parameters for realistic coordinates within machine travel.

Recalculate Position Range

Ensure total travel range fits within ±2^31 encoder increments based on your scaling configuration.

Consider adjusting machine coordinate system origin to center the working range