What causes Siemens SINUMERIK alarm 100002?

Normal system operation generated this status message. User action or program command triggered this notification. Machine data or parameter change created this notification. System startup or initialization process generating a status report.

How do I fix Siemens SINUMERIK alarm 100002?

1. Read the full message text displayed on the SINUMERIK screen for complete details. 2. If action is required, follow the instructions shown in the message. 3. Consult the SINUMERIK alarm manual for alarm 100002 for detailed information about this message. 4. If the message appears unexpectedly, check recent parameter changes or program modifications. 5. For recurring messages, contact Siemens technical support or the machine builder.

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Siemens SINUMERIK Controller

Program/G-code · Intermediate · 30-120 minutes

Alarm 100002

Siemens 840D 100002 - MS DOS test version !

SIEMENS alarm 100002 'MS DOS test version !' indicates the SINUMERIK system has detected an incompatible or test version of MS DOS running on the PCU (PC Unit). This typically occurs when the system boots from incorrect media or has corrupted system files that revert to a test/development version of the operating system.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

100002

Siemens 840D 100002 - MS DOS test version !

MS DOS test version !

Root Cause Summary

SIEMENS alarm 100002 'MS DOS test version !' indicates the SINUMERIK system has detected an incompatible or test version of MS DOS running on the PCU (PC Unit). This typically occurs when the system boots from incorrect media or has corrupted system files that revert to a test/development version of the operating system.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Power down and inspect boot media
Shut down the SINUMERIK system properly and remove the CompactFlash card from the PCU. Inspect for physical damage or corrosion on contacts.
Always follow proper shutdown procedures via HMI before removing power
2
Verify CompactFlash integrity
Insert CompactFlash into a card reader and scan for file system errors. Check if SINUMERIK system files are present in correct directory structure.
Look for the presence of \addon\sinumerik directory structure to confirm proper SINUMERIK installation
3
Restore from backup or replace media
If corrupted, restore from known good backup CompactFlash or create new system media using SINUMERIK System Recovery tools.
Always maintain current backup of working CompactFlash configuration

DIY Feasiblehigh confidence

Call a technician if:

·PCU hardware replacement required
·SINUMERIK license issues during reinstallation
·Persistent alarm after all troubleshooting steps

Prevention

Maintain current CompactFlash backups
Use only authorized SINUMERIK software versions
Implement regular system health checks
Protect PCU from power fluctuations with UPS

Common Mistakes

Using consumer-grade CompactFlash instead of industrial grade
Attempting to boot SINUMERIK from network without proper configuration
Mixing SINUMERIK software versions during updates

Related Alarms

100001 100003 380001

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Always verify with your machine manual or a certified technician before performing service procedures.