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Access the tool management screen (Tool List) and compare the displayed tool positions with the actual physical tools in the magazine.

Check for duplicate tool pocket assignments or tools assigned to non-existent magazine positions using the tool overview display.

Perform a tool magazine initialization or reload the tool management data from a known good backup file.

WARNING: Magazine initialization will clear all current tool data. Document existing tool assignments before proceeding.

If necessary, manually correct tool location assignments in the tool table to match physical positions, then execute a tool magazine synchronization.

Review the NC program at the line where the alarm occurred and identify any tool relocation commands (GETACTTD, SETPIECE, or magazine management functions).

Verify that all tool numbers referenced in the relocation command exist in the tool management system and have valid magazine pocket assignments.

Check that target pocket numbers are within the valid range for your magazine configuration (verify magazine size in machine data MD18100-MD18118).

Ensure the destination pocket is empty or the program logic accounts for displacing existing tools. Correct the NC program syntax and test with single block execution.

Access the HMI service mode and check the alarm log archive for recurring tool management errors or file system warnings that may indicate data corruption.

WARNING: Service mode access requires appropriate password authorization.

Export current tool management data as backup, then check file integrity by reloading tool data from the most recent known good archive or backup.

If file corruption is suspected, perform a PLC and NC memory reset (power cycle with battery backup maintained), then reload all tool management configuration.

WARNING: This will clear volatile memory. Ensure all critical programs and data are backed up externally.

Verify machine data related to tool management (MD18100-MD18118 series) for correct magazine configuration, then perform a complete magazine reference and tool inventory.