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Access machine data diagnostics

Navigate to Diagnostics > Service > Machine data and check for parameters highlighted in red indicating range violations.

Use the search function to filter by axis number to quickly locate problematic parameters

Check servo axis machine data

Review MD32000-MD32999 (axis-specific data) for values below minimum thresholds, particularly velocity and acceleration limits.

Do not modify machine data without proper backup and understanding of mechanical limitations

Correct parameter values

Set parameters to values within the valid range as specified in the machine manufacturer's documentation or Siemens defaults.

Use 'Reset to default' function for standard applications before manual adjustment

Perform control restart

Execute a complete control restart (not just reset) to ensure all machine data changes take effect properly.

Access SIMODRIVE diagnostics

Navigate to Diagnostics > Drive > Parameter and check drive-specific parameters for range violations.

Focus on P-parameters related to current and velocity limits first

Verify motor data parameters

Check motor-specific parameters (P-0300 series) ensuring rated current, voltage, and speed values are within motor nameplate specifications.

Incorrect motor parameters can cause drive damage or unsafe operation

Validate encoder parameters

Review encoder resolution and type parameters (P-0400 series) to ensure they match the actual encoder specifications and are above minimum values.

Save and activate drive parameters

Use 'Copy RAM to ROM' function and perform drive enable sequence to activate corrected parameters.

Identify program location

Check the alarm detail for block number and program name where the range violation occurred.

Use the alarm timestamp to correlate with program execution trace

Analyze variable assignments

Review R-parameters, arithmetic operations, and system variables in the problematic program block for negative or extremely small values.

Check calculation logic

Verify mathematical operations, especially divisions that might result in values approaching zero or negative numbers where positive values are required.

Implement range checking

Add conditional statements in the NC program to validate variable ranges before critical operations.

Perform system data check

Navigate to Startup > Commissioning > System data and run the data consistency check function.

System data corruption may require complete reconfiguration

Restore from backup

If available, restore machine data from a known good backup using the archive function in the HMI.

Always verify backup date corresponds to when machine was functioning properly

Reinitialize affected parameters

Manually reconfigure corrupted parameters using original commissioning documentation or OEM specifications.

Create new system backup

After successful correction, create a complete system backup including all machine data and configuration files.