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Heidenhain Controller
Parameter · Intermediate · 30-120 minutes
HEIDENHAIN 140-0027 - Data object removed
This alarm is generated by the TNC's file management system when a data object is intentionally or automatically removed from the control. It serves as a notification and audit trail entry rather than indicating a fault condition. The alarm typically requires acknowledgment but does not prevent operation unless the removed object was critical to machine function.
140-0027
HEIDENHAIN 140-0027 - Data object removed
Data object removed
The loaded configuration data comes from an older control version. A data object was removed by update rules even though it is still supported.
Root Cause Summary
This alarm is generated by the TNC's file management system when a data object is intentionally or automatically removed from the control. It serves as a notification and audit trail entry rather than indicating a fault condition. The alarm typically requires acknowledgment but does not prevent operation unless the removed object was critical to machine function.
Safety
- Refer to Heidenhain service manual
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Verify alarm details
Press ERROR key to display the alarm log. Note the exact data object type '%1' (e.g., 'Program', 'Tool Table', 'Preset Table') and name '%2' that was removed.
The alarm text provides complete path information - document this for recovery if needed
- 2
Check deletion timestamp
Navigate to MOD > System > Log Files > Event Log. Filter for recent deletion events to identify who performed the deletion and exact time.
Event log entries include user login information if password protection is enabled
- 3
Restore from backup if necessary
If the deleted object is required, press PGM MGT key, navigate to TNC:/ directory structure, and copy the file from backup location (USB drive or network path configured under MOD > Network Settings).
- 4
Clear alarm and verify
Press CE (Clear Error) key to acknowledge the alarm. Verify machine operation is unaffected. If the deleted file was critical, the control will generate additional alarms indicating missing dependencies.
Call a technician if:
- ·Multiple critical machine parameters affected
- ·PLC program compilation failures persist
- ·Machine kinematic behavior changes after parameter migration
Prevention
- Maintain detailed parameter documentation before TNC software updates
- Create complete system backups including all configuration data
- Review TNC migration guides before upgrading control software
Common Mistakes
- Ignoring the alarm assuming it's harmless
- Not documenting which parameters were removed
- Failing to verify machine functionality after parameter migration
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Always verify with your machine manual or a certified technician before performing service procedures.