Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Communication · Intermediate · 30-120 minutes

Alarm 380005

Siemens 840D 380005 - Profibus-DP: bus access conflict, type, counter

This alarm is caused by an access conflict on the PROFIBUS DP during cyclic mode, often due to timing issues in the program or configuration. Fixing it typically involves adjusting the program or bus settings.

Siemens SINUMERIKCommunicationIntermediate30-120 minutes

380005

Siemens 840D 380005 - Profibus-DP: bus access conflict, type, counter

Profibus-DP: bus access conflict, type, counter

Siemens SINAMICS drive alarm 380005: Profibus-DP: bus access conflict, type, counter. This alarm indicates a fault condition in the SINAMICS servo drive system. Refer to the Siemens SINAMICS fault list documentation for the complete remedy.

Root Cause Summary

This alarm is caused by an access conflict on the PROFIBUS DP during cyclic mode, often due to timing issues in the program or configuration. Fixing it typically involves adjusting the program or bus settings.

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Causes and Fixes

  1. 1

    STOP MACHINE - Check program timing

    Ensure machine is in safe state. Review the program for blocks that may interfere with cyclic data transfer timing.

  2. 2

    Document before changes

    Back up current program before modifications. Consult with qualified technician before adjusting timing-critical code.

  3. 3

    Test in simulation mode

    Test modified program in simulation before live operation.

Service Recommendedlow confidence

Call a technician if:

  • ·Always - PROFIBUS diagnostics require specialized knowledge
  • ·Before making any configuration changes to safety-critical systems
  • ·If alarm persists after initial troubleshooting
  • ·When working with networked safety devices

Prevention

  • Regular PROFIBUS cable inspection and maintenance
  • Proper cable routing away from power lines and motors
  • Maintain backup copies of all configurations
  • Use PROFIBUS diagnostic tools for preventive monitoring
  • Ensure proper grounding and shielding

Common Mistakes

  • Overlooking cyclic transfer timing in program design
  • Assuming default bus settings are correct

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