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Heidenhain Controller
Tool · Intermediate · 30-120 minutes
HEIDENHAIN 600-02E4 - No tool found. The effective length is insufficient
Alarm 600-02E4 occurs when the Automatic Workpiece Gaging (AWG) optimization function determines that no tools in the tool table have sufficient effective length to complete the programmed operations. The TNC system calculates required tool lengths and compares them against available tools, rejecting all candidates as unsuitable.
600-02E4
HEIDENHAIN 600-02E4 - No tool found. The effective length is insufficient
No tool found. The effective length is insufficient
No suitable tool was found for the automatic workpiece generation. This may be due to incorrect tool geometry parameters or unsuitable tool types.
Root Cause Summary
Alarm 600-02E4 occurs when the Automatic Workpiece Gaging (AWG) optimization function determines that no tools in the tool table have sufficient effective length to complete the programmed operations. The TNC system calculates required tool lengths and compares them against available tools, rejecting all candidates as unsuitable.
Safety
- Refer to Heidenhain service manual
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Check tool table entries
Access tool table via MOD function and verify L2 (effective length) values for all tools referenced in the NC program.
Use TOOL CALL to verify which tools are being evaluated by AWG
- 2
Measure actual tool lengths
Use tool presetter or manual measurement to determine correct L2 values, accounting for tool holder and cutting tool geometry.
Ensure spindle is stopped and tools are properly secured during measurement
- 3
Update tool table L2 parameters
Enter correct effective lengths in tool table L2 column, ensuring values exceed the minimum required depth plus safety clearance.
Add 5-10mm safety margin to calculated minimum length
Call a technician if:
- ·AWG system parameters require modification beyond operator access level
- ·Tool measurement system calibration needed
- ·Persistent alarm after tool table and coordinate system verification
Prevention
- Maintain accurate tool length measurements in tool table
- Verify workpiece coordinate systems before starting AWG operations
- Regular calibration of tool measurement systems
- Document standard tool lengths for common operations
Common Mistakes
- Forgetting to update L2 values after tool changes
- Setting workpiece reference point too low
- Disabling tool length compensation without updating AWG parameters
- Using worn tools without adjusting effective length values
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