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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 100144 - Error on saving the file
SIEMENS alarm 100144 'Error on saving the file' occurs when the SINUMERIK system cannot write data to storage locations, typically during parameter backup, program storage, or configuration saves. This servo-category alarm indicates file system issues affecting servo parameter persistence or program file operations.
100144
Siemens 840D 100144 - Error on saving the file
Error on saving the file
Siemens SINUMERIK alarm 100144: Error on saving the file. This alarm indicates an error condition in the NC program or control configuration that must be resolved before the operation can continue.
Root Cause Summary
SIEMENS alarm 100144 'Error on saving the file' occurs when the SINUMERIK system cannot write data to storage locations, typically during parameter backup, program storage, or configuration saves. This servo-category alarm indicates file system issues affecting servo parameter persistence or program file operations.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Check CF card write protection
Navigate to HMI > Diagnostics > Hardware > Storage and verify CF card status. Check physical write-protect switch on CF card.
Power down NCK before removing CF card to prevent data corruption
- 2
Verify CF card capacity and health
In HMI > Service > Memory, check available space. Verify CF card health using SINUMERIK diagnostic functions.
SINUMERIK requires minimum 15% free space on CF card for reliable operation
- 3
Replace CF card if necessary
If CF card shows errors or insufficient space, replace with SIEMENS-approved CF card and restore from backup using NCK backup/restore function.
Call a technician if:
- ·CF card replacement required
- ·NCK file system repair fails
- ·Network infrastructure issues
Prevention
- Regular CF card health monitoring
- Maintain adequate free space on storage devices
- Perform regular NCK data backups
- Use appropriate user access levels
Common Mistakes
- Attempting saves during active machining
- Ignoring CF card write protection
- Using insufficient user permissions
- Not checking available storage space
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