Alarm 14300 occurs when the SINUMERIK tool management system cannot locate a valid tool record in the TM database for the requested T-function call. The controller requires complete tool geometry data including length and radius compensation values to execute the toolpath safely.
Handwheel override has been called up incorrectly: - 1st For positioning axes: - Handwheel override programmed for indexing axes, - No position programmed, - FA and FDA programmed for the same axis in the block. - 2nd For contouring axes: - No position programmed, - G60 not active, - 1st G group incorrect (only G01 to CIP) Control reaction: Correction block is reorganized. Interface signals are set. Alarm display.
Root Cause Summary
Alarm 14300 occurs when the SINUMERIK tool management system cannot locate a valid tool record in the TM database for the requested T-function call. The controller requires complete tool geometry data including length and radius compensation values to execute the toolpath safely.
Safety
Only qualified personnel should diagnose and clear control alarms; follow the machine builder's safety procedures and lockout/tagout where hardware work is required.
Causes and Fixes
1
Access Tool Management
Press MENU SELECT → Machine → Tool Management or use softkey 'TOOL MANAGEMENT' from main screen.
Use F4 'Magazine' view to see all available tool slots and their status
2
Create new tool record
Select empty T-number slot, press 'NEW TOOL' softkey, enter tool type (drill, mill, etc.) and assign the required T-number matching your NC program.
Ensure tool number matches exactly with NC program T-call
3
Define tool geometry
Enter tool length compensation in 'Length 1' field and radius compensation in 'Radius' field. Set tool type parameters and cutting edge data.
Use 'MEASURE' function if available to automatically capture tool dimensions
4
Activate tool record
Press 'ACTIVATE' softkey to write tool data to controller memory and make it available for NC program execution.
1
Locate existing tool
Navigate to Tool Management → select the problematic T-number from the tool list display.
Use 'SEARCH' function with T-number to quickly locate the tool record
2
Check cutting edge parameters
Verify 'Length 1', 'Length 2', and 'Radius' fields contain valid numerical values. Check that 'Cutting Edge' tab shows active edge data.
Zero values in compensation fields may be valid for some applications but often indicate incomplete setup
3
Complete missing data
Enter required tool geometry values, set tool type correctly, and ensure all mandatory fields per MD18118 (tool management configuration) are populated.
4
Validate and save
Press 'CHECK' softkey to validate data integrity, then 'SAVE' to commit changes to TM database.
1
Check TM system status
Navigate to Diagnostics → Service → Tool Management Status. Check for error messages or database inconsistencies.
Database operations may affect all stored tool data
2
Verify TM parameters
Check MD18100 (TM activation), MD18110 (number of tools), and MD18118 (TM configuration) in Parameters → Machine Data → Tool Management section.
MD18100 must be set to 1 for tool management activation
3
Reorganize TM database
Use Service → Tool Management → 'REORGANIZE' function to rebuild database structure and eliminate corruption.
Create backup before reorganizing database
4
Reset if necessary
If corruption persists, use 'INITIALIZE TM' function to create fresh database, then reload tool data from backup or re-enter manually.
1
Identify call method
Check NC program to see if tool is called by number (T1) or name (T='DRILL_10MM'). Note exact syntax used.
Use Program Editor search function to find all T-function calls in the program
2
Verify tool naming
In Tool Management, check that tool record 'Name' field matches exactly with NC program call, including case sensitivity and special characters.
3
Check symbolic name configuration
Verify MD18130 (symbolic tool names) is properly configured if using named tools instead of numbered tools.
Symbolic names are case-sensitive and must match exactly
4
Standardize naming convention
Either modify NC program to use correct tool identifier or update tool record name to match program requirements.
1
Check magazine status
Navigate to Tool Management → Magazine view. Compare physical magazine contents with displayed tool positions.
Ensure magazine is in safe position before manual inspection
2
Perform magazine synchronization
Use 'SYNC MAGAZINE' function in Tool Management to update database with actual magazine contents and positions.
3
Verify tool location data
Check that tool record shows correct magazine position and location status matches physical reality.
Use magazine teaching function if available to automatically detect tool positions
4
Update location parameters
Manually correct tool location data if synchronization does not resolve the mismatch between physical and logical magazine status.
DIY Feasiblehigh confidence
Call a technician if:
·TM database corruption persists after reorganization
·Magazine synchronization hardware issues
·Parameter access restrictions due to protection level
Prevention
Maintain standardized tool naming conventions
Regular TM database backups
Verify tool data completeness during setup
Use tool presetting systems for accurate geometry data
Common Mistakes
Forgetting to activate tool records after creation
Case-sensitive tool name mismatches
Assuming zero compensation values are invalid
Not checking magazine synchronization after tool changes