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Siemens SINUMERIK Controller
Program/G-code · Intermediate · 30-120 minutes
Siemens 840D 101130 - Error return value undefined
Alarm 101130 indicates a startup function call failed with an undefined return value. This is typically caused by corrupted system files, failed initialization routines during NCK boot-up, or hardware communication errors during the startup sequence. The %1 %2 parameters provide specific function identifiers needed for precise diagnosis.
101130
Siemens 840D 101130 - Error return value undefined
Error return value undefined
Siemens SINUMERIK message 101130: Error return value undefined. This is an operator information message from the SINUMERIK control. Note the complete message text as it may contain important parameter values.
Root Cause Summary
Alarm 101130 indicates a startup function call failed with an undefined return value. This is typically caused by corrupted system files, failed initialization routines during NCK boot-up, or hardware communication errors during the startup sequence. The %1 %2 parameters provide specific function identifiers needed for precise diagnosis.
Safety
- Refer to Siemens documentation
- Ensure qualified technician performs repairs
Causes and Fixes
- 1
Record the exact %1 and %2 parameter values displayed with the alarm - these identify the specific failed function.
- 2
Perform a complete NCK backup if system is accessible, then execute a power cycle with CF card check during boot.
Ensure UPS or stable power before proceeding to prevent further corruption
- 3
Boot into system service mode and run file system check utility (CHKDSK equivalent) on the compact flash card.
- 4
If errors are found, restore system files from a known good backup or perform fresh NC software installation with PLC and machine data restore.
Document all machine and PLC data before reinstallation
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Always verify with your machine manual or a certified technician before performing service procedures.