What causes Siemens SINUMERIK alarm 104015?

Normal control operation generated this status message. User action or program command triggered this notification. System configuration or commissioning activity produced this message. Machine data or parameter change created this notification.

How do I fix Siemens SINUMERIK alarm 104015?

1. Read the complete message text on the SINUMERIK screen — note any parameter values shown. 2. If action is required, follow the instructions in the message. 3. Acknowledge the message on the operator panel to continue operation. 4. Consult the Siemens SINUMERIK alarm documentation for message 104015 if clarification is needed. 5. If this message appears unexpectedly, review recent parameter or configuration changes.

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Siemens SINUMERIK Controller

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

Alarm 104015

Siemens 840D 104015 - Number of parameters per tool edge is zero

Alarm 104015 indicates that the tool management system has detected a tool or tool edge with zero parameter entries defined in the tool data structure. This typically occurs when the machine data parameter $TC_DP6[n] (number of parameters per cutting edge) is set to zero or has been corrupted, preventing proper tool data storage and management.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

104015

Siemens 840D 104015 - Number of parameters per tool edge is zero

Number of parameters per tool edge is zero

Root Cause Summary

Alarm 104015 indicates that the tool management system has detected a tool or tool edge with zero parameter entries defined in the tool data structure. This typically occurs when the machine data parameter $TC_DP6[n] (number of parameters per cutting edge) is set to zero or has been corrupted, preventing proper tool data storage and management.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Access machine data in service mode: HMI → Commissioning → Machine Data → Search for $TC_DP6
2
Check the value of $TC_DP6[n] for all tool types. Standard value should be 2 or higher (typically 2-10 depending on configuration).
3
If $TC_DP6 is zero, set it to the appropriate value per machine manufacturer specifications (default is typically 2). Verify with backup machine data if available.
Modifying machine data requires proper authorization and may affect tool management. Document original values before changes.
4
Perform NCK reset (Power On Reset) to activate the new machine data settings and clear the alarm.
NCK reset will interrupt current operations. Ensure machine is in a safe state.

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