What causes Siemens SINUMERIK alarm 1015?

Parameter or machine data configuration error. Hardware fault on the NC or drive component. Part program error or illegal command. Communication fault between NC and drive or I/O modules. Software or firmware error requiring system restart.

How do I fix Siemens SINUMERIK alarm 1015?

1. Note the complete alarm text including any axis, channel, or block number values. 2. Check for related alarms active simultaneously in the SINUMERIK alarm list. 3. Power cycle the machine to clear transient faults. 4. Review the SINUMERIK machine data for parameters related to the alarm. 5. Consult the Siemens SINUMERIK alarm manual for alarm 1015 detailed remedy.

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Siemens SINUMERIK Controller

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

Alarm 1015

Siemens 840D 1015 - Channel axis system error

Alarm 1015 indicates an internal system error within the SINUMERIK 840D control, typically related to software conflicts, memory issues, or system configuration problems. The specific system error number (%3 parameter) identifies the exact nature of the fault, with error 840001 specifically pointing to tool management database corruption or communication failures.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

1015

Siemens 840D 1015 - Channel axis system error

Channel axis system error

Root Cause Summary

Alarm 1015 indicates an internal system error within the SINUMERIK 840D control, typically related to software conflicts, memory issues, or system configuration problems. The specific system error number (%3 parameter) identifies the exact nature of the fault, with error 840001 specifically pointing to tool management database corruption or communication failures.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Access HMI in service mode and navigate to Commissioning > System Data > Tool Management. Check for tool data inconsistencies or duplicate tool numbers.
2
Execute tool management reorganization: Select 'Services' > 'Tool Management' > 'Reorganize Database' to rebuild the tool data structures.
Back up all tool data before reorganizing. This process may take 5-10 minutes.
3
Verify magazine configuration matches physical setup in machine data MD18100-MD18135 (tool management configuration parameters).
4
If error persists, delete and recreate the tool management database from archived backup or clear all tools and reload from a known good configuration file.
Coordinate with production before clearing tool data. All tool offsets will need re-entry.

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