What causes Siemens SINUMERIK alarm 104000?

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 104000?

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 104000 if clarification is needed. 5. If this message appears unexpectedly, review recent parameter or configuration changes.

Siemens SINUMERIK codes

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Siemens SINUMERIK Controller

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

Alarm 104000

Siemens 840D 104000 - Actual tool not found

This alarm occurs when the cursor in the 'Magazine list' window is on a blank line, preventing tool data access. Fix by placing the cursor on the correct tool entry.

Siemens SINUMERIKProgram/G-codeIntermediate30-120 minutes

104000

Siemens 840D 104000 - Actual tool not found

Actual tool not found

Siemens SINUMERIK message 104000: Actual tool not found. 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

This alarm occurs when the cursor in the 'Magazine list' window is on a blank line, preventing tool data access. Fix by placing the cursor on the correct tool entry.

Safety

Refer to Siemens documentation
Ensure qualified technician performs repairs

Causes and Fixes

1
Open Magazine list
Navigate to the 'Magazine list' window on the CNC control.
2
Reposition cursor
Move the cursor to the line corresponding to the desired tool.
3
Access tool data
Press the 'Tool data' softkey to view or edit the tool information.

Service Recommended confidence

Call a technician if:

·If the alarm persists after repositioning cursor and verifying tool data
·If the magazine list appears corrupted or inaccessible
·If you are not trained on this specific Siemens control system
·If the machine behavior seems abnormal beyond the alarm

Prevention

Always ensure cursor is on a valid tool entry before accessing tool data
Regularly review and update tool magazine data
Ensure proper training on Siemens control interface before making tool data modifications

Common Mistakes

Overlooking cursor position in the Magazine list
Assuming tool data is automatically populated

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