Old Hand Fault Finder

Siemens SINAMICS G120 F01910: Fieldbus interface setpoint timeout

What it means The drive stopped receiving setpoints over the fieldbus.

✓ Checked against the manual (Oct 2026): meaning and actions match the official fault table. Manual page.

Likely causes

  • Bus connection interrupted
  • Communication partner switched off
  • PROFIBUS master in STOP

Checks, in order

  1. Check the bus connection and switch on the partner
  2. Check PLC state
  3. Adapt p2040 if needed

Source

Source (reworded, not copied): Siemens, SINAMICS G120 Control Units CU240B-2/CU240E-2 List Manual, 02/2023, A5E33839529, section 4.2 List of faults and alarms, PDF page 861. Official manual (PDF). Fault numbers and names can differ between firmware versions.