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Check automatic test configuration

Navigate to HMI > Commissioning > Drive > Servo and verify MD30200 AUTOMATIC_TEST_ENABLE parameter status.

This parameter is often enabled by default in newer SINUMERIK versions

Monitor test progress

Observe the servo test sequence in the diagnostic buffer and wait for completion or error messages.

Do not interrupt the test sequence as this may cause servo parameter corruption

Verify test results

Check HMI > Diagnostics > Service > Drive test results for any failed servo axes or parameter deviations.

Identify test initiator

Check HMI > Diagnostics > Alarms > Alarm log to determine if test was manually started from commissioning interface.

Look for preceding user actions in the NCK alarm buffer

Verify test scope

Navigate to HMI > Commissioning > Drive > Optimization to see which axes are included in the current test cycle.

Allow test completion

Let the automatic test sequence complete normally, monitoring for any servo-related error alarms during execution.

Premature test termination may leave servo parameters in an inconsistent state

Review recent parameter changes

Access HMI > Commissioning > Drive > Parameters and check the parameter change log for recent MD32xxx modifications.

Focus on motor data parameters MD32000-MD32999 which commonly trigger retests

Validate parameter consistency

Verify that motor parameters match the actual connected drive hardware using the drive identification function.

Execute parameter activation

Perform a controlled NCK reset after test completion to activate the new drive parameters permanently.

Check encoder diagnostics

Navigate to HMI > Diagnostics > Drive > Encoder and examine feedback signal quality and error counters.

Encoder errors during testing may indicate hardware failure requiring replacement

Verify encoder parameters

Confirm encoder resolution settings in MD31000-MD31999 match the installed feedback devices.

Monitor position accuracy

Use the servo trace function to verify position loop stability and following error during the test sequence.

Check safety configuration

Access HMI > Commissioning > Safety Integrated and verify safety function parameters are properly configured.

Safety tests are mandatory after any safety parameter changes

Validate STO circuits

Ensure Safe Torque Off circuits are properly connected and responding during the automatic test sequence.

Complete safety acceptance

Follow the safety acceptance procedure in the commissioning manual after successful test completion.

Safety system failures require immediate attention before machine operation