What causes Siemens SINUMERIK alarm 100012?

Part program contains an illegal or unsupported command for the current machine configuration. Parameter or machine data setting incompatible with the commanded operation. Required option or function not enabled on this SINUMERIK control. Incorrect axis assignment or configuration for the commanded function. Software version or compile cycle version mismatch.

How do I fix Siemens SINUMERIK alarm 100012?

1. Note the full alarm message including any parameter values shown (e.g., axis number, block number, channel). 2. Identify the program block or operation that triggered the alarm. 3. Review the SINUMERIK alarm manual for alarm 100012 to identify the specific cause and remedy. 4. Check the relevant machine data parameters referenced in the alarm. 5. If the alarm persists after correcting the program, contact Siemens technical support with the full alarm text and machine data backup.

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Siemens SINUMERIK Controller

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

Alarm 100012

Siemens 840D 100012 - Conf. fault,

SIEMENS alarm 100012 indicates a configuration fault in the servo system, typically triggered by parameter inconsistencies, hardware configuration mismatches, or corrupted machine data. The %1 and %2 placeholders provide specific fault details that help identify the exact configuration error within the SINUMERIK drive system.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

100012

Siemens 840D 100012 - Conf. fault,

Conf. fault,

Root Cause Summary

SIEMENS alarm 100012 indicates a configuration fault in the servo system, typically triggered by parameter inconsistencies, hardware configuration mismatches, or corrupted machine data. The %1 and %2 placeholders provide specific fault details that help identify the exact configuration error within the SINUMERIK drive system.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Check drive parameter consistency
Navigate to HMI > Commissioning > Drive > Parameters and verify MD30100 (motor type), MD30110 (motor data), and MD30200 (encoder type) match actual hardware configuration.
Use the drive wizard to automatically detect and configure parameters rather than manual entry.
2
Verify encoder configuration
Check MD31000-MD31050 encoder parameters match the installed encoder type and resolution. Compare with encoder nameplate data.
Incorrect encoder parameters can cause severe axis runaway conditions.
3
Validate motor parameters
Confirm MD30300-MD30390 motor parameters (rated current, voltage, speed) match motor nameplate. Use STARTER software to cross-reference SINAMICS drive configuration.
4
Perform parameter reset
Execute NC Reset (HMI > Machine > NC Reset) and reload machine data from backup or reconfigure using commissioning wizard.

DIY Feasiblehigh confidence

Call a technician if:

·Hardware component replacement required
·Firmware update fails
·Multiple drive axes affected simultaneously

Prevention

Regular backup of machine data and drive parameters
Document all parameter changes
Verify hardware compatibility before installation
Maintain firmware update schedule

Common Mistakes

Modifying drive parameters without understanding dependencies
Ignoring encoder resolution mismatches
Not backing up configuration before changes
Mixing firmware versions during updates

Related Alarms

100013 300500 300501 380001

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